JP5841369B2 - Reinforcement structure of water tank - Google Patents

Description

  The present invention relates to a structure for reinforcing a water tank that can effectively reinforce a concrete water tank such as an aged underground buried fireproof water tank from the inside and extend the period of use of the water tank. .

  For example, existing concrete water tanks that have been buried underground, such as concrete fire tanks that have deteriorated after about 50 years have been built with loose design standards and set loads at the time, and the amount of rebar is low. In addition to the fact that the strength was weak originally and corrosion of internal rebar due to secular change, the yield strength was reduced. In the water tank installed under the road, cracks progressed with fatigue due to the size of the passing vehicle, and the top plate and side walls of the water tank were likely to be damaged. These aging water tanks were particularly prone to cracking of the water tank and damage to the top plate and side walls of the water tank at a stretch, particularly when an earthquake occurred.

  When such cracks and breakage occur, the water in the water tank leaks to the outside, so these aging water tanks have a serious concern that they cannot secure the necessary water storage in the event of a disaster.

  Moreover, the situation where the road of the upper part of a water tank becomes unusable by the damage of the top plate part of a water tank or a side wall part was also caused.

  For such an aged water tank, it was common to construct a new one by demolishing it, but from the viewpoint of construction economy, the aging water tank was appropriately reinforced for a longer period of time. There has been a demand for making it possible to be used throughout.

  As an example of a reinforcing structure for that purpose, there has been proposed a reinforcing structure in which a fiber reinforcing sheet is attached to the inner surface of a water tank and reinforced after repair such as cross-sectional repair is performed on a defective portion of concrete such as a crack. However, since the fiber reinforced sheet is very expensive, there is a problem that causes a significant increase in construction cost. In addition, an adhesive such as an epoxy resin is applied to the concrete surface in a high humidity environment to apply the fiber reinforced sheet. There was concern about the construction quality because it had to be fixed. Moreover, the curing period of the adhesive after attaching the fiber reinforced sheet is necessary, and the construction period cannot be shortened. In addition, this type of water tank was constructed on site and was constructed by placing concrete on a formwork formed by arranging plate materials, but there were steps and distortions in the formwork. When affixing the reinforcing sheet on the concrete surface, it was necessary to make fine adjustments at the site, such as having to perform extra repair work on the steps. As described above, the reinforcing structure to which the fiber reinforced sheet is attached has various problems such as not only requiring considerable labor and cost, but also a long construction period and uneasy construction quality.

  As another reinforcing structure that reinforces an aged water storage tank, a structure described in Patent Document 1 has been proposed. In this reinforcing structure, a resin frame unit with a high porosity is laid out on the bottom plate part of the water storage tank and stacked near the top plate part of the water storage tank, in the gap between the top plate part and the uppermost frame unit. Filling with a filler such as lightweight polystyrene foam material prevents the top plate from collapsing by supporting the top load such as earth pressure and automobile load acting on the top plate with the frame unit and the filler. Was. Further, the water tank is reinforced from the inside by filling the gap between the outermost frame unit stacked from the bottom plate part and the side wall part of the water tank to improve the robustness, and the side wall part is arranged on the inner side. It was intended to prevent it from leaning or falling.

  However, this reinforcing structure has the following problems. That is, as described above, the gap between the top plate portion and the uppermost frame unit and the gap between the side wall portion and the outermost frame unit must be uniformly filled throughout. However, it was very difficult to fill the entire gaps with the filler without any gaps, and a great deal of labor was required. In addition, the filling tends to be incomplete, and the displacement suppression of the top plate part and the side wall part tends to be incomplete. Even if such filling can be performed almost completely, the resin frame unit is easily bent, so that the load support is uncertain due to this bending and is sufficient to suppress displacement of the top plate portion and the side wall portion. Did not have a good performance. Therefore, by supporting the aged fire prevention water tank from the inside, the top plate part and the side wall part of the water tank are surely prevented from inclining or collapsing inward, and the robustness of the water tank is improved. It was difficult to achieve the purpose. In addition, when the frame unit is housed in the water tank as described above, it is necessary to assemble a scaffold for the housing work, but it is necessary to assemble the scaffold member into the water tank or the scaffold in the water tank. There was also a problem that required considerable labor and cost to assemble, dismantle the scaffold after the work and carry it out.

  Furthermore, even when trying to visually inspect the inside of the water tank for the maintenance of the water tank, there is a problem that the housed frame unit is in the way and cannot be seen. Moreover, even if it was partially visible, there was a problem that the housed frame unit was in the way and the operator could not move inside the water storage tank and required repairs could not be performed.

  Patent Document 2 proposes a type of reinforcing structure configured so that an operator can move inside the water tank and perform necessary repairs, with a passage formed in the inner periphery of the water tank. However, when such a reinforcing structure is used, there is a problem that the earth pressure applied to the side wall portion of the water storage tank cannot be supported.

JP 2007-314217 A JP 2010-53628 A

  The present invention was developed in view of the above-mentioned conventional problems, and is based on the concept of effectively reinforcing an aged underground buried water tank from the inside to improve the yield strength of the water tank. It is an object of the present invention to provide a reinforcing structure for a water storage tank that can prevent damage to the water storage tank and extend the period of use of the aging water storage tank. In addition, the present invention provides a water tank reinforcement structure capable of preventing damage to the top plate and side walls of the water tank and preventing secondary damage to the road and the surrounding environment above the water tank by improving the yield strength. Is an issue. Moreover, this invention makes it a subject to provide the reinforcement structure of the water tank which can expect a workability improvement and reduction of construction cost by making it possible to reinforce a water tank appropriately according to the load condition of a construction site.

  Another object of the present invention is to provide a water tank reinforcing structure that enables visual inspection of the inside of the water tank and facilitates necessary repairs.

  Moreover, this invention makes it a subject to provide the reinforcement structure of the water tank which can prevent the water leak of a water tank by simple means.

In order to solve the above problems, the present invention employs the following means.
That is, the first aspect of the water tank reinforcing structure according to the present invention is a reinforcing structure for reinforcing the inside of the concrete water tank, and is configured by connecting the straight bar-shaped support rods having a straight bar shape as required. A reinforcing frame having a three-dimensional form is accommodated in the water storage tank, and upper and lower pressing contact portions provided on the upper and lower sides of the reinforcing frame are provided between the top plate portion and the bottom plate portion of the water storage tank. The upper pressing contact portion applies a tensile force to the top plate portion and the lower pressing contact portion applies a tensile force to the bottom plate portion. The pressing contact portions on both sides provided on both sides when viewed in the horizontal direction of the reinforcing frame body are stretched between the opposing side wall portions of the water storage tank via the reinforcing frame body. The pressing contact portion applies a tension force to the side wall portion. The reinforcing frame is provided therein with a work path that extends in the direction of extension of the water storage tank and allows an operator to move, and an upper portion of the work path is provided with the linear bar-like support rod. And the lower portion of the working path is configured by connecting the straight bar-like supporting rods so as to form a V-shaped protrusion below. It is characterized by being.

According to a second aspect of the reinforcing structure for a water storage tank according to the present invention, in the first aspect, the reinforcing frame body is configured by connecting the linear rod-shaped support rods to each other via a connecting member. The frame body is juxtaposed with a required interval in the extension direction of the water tank, and the connecting member is provided with a connecting hole through which a linear connecting rod extending in the extending direction can be inserted. Both upper ends of the V-shape of the lower portion having a projecting V shape are connected to the connecting member, and connecting holes at both upper ends provided in the connecting member at the both upper ends are respectively the extensions. When viewed from the direction, the hole cores are in a horizontal communication state, and the linear connection rods are inserted in the horizontal state into the two rows of communication connection holes, and the two linear connection rods are The two end portions of the scaffold member can be supported from below.

A third aspect of the water tank reinforcing structure according to the present invention is a reinforcing structure that reinforces the inside of a concrete water tank, and is a tertiary structure that is configured by connecting linear rod-shaped support rods having a straight bar shape as required. A reinforcing frame body having an original shape is accommodated inside the water storage tank, and upper and lower pressing contact portions provided on the upper and lower sides of the reinforcing frame body are between the top plate portion and the bottom plate portion of the water storage tank. It is disposed in a stretched state via the reinforcing frame, and the upper pressing contact portion applies a tensile force to the top plate portion, and the lower pressing contact portion applies a tensile force to the bottom plate portion. And the pressing contact portions on both sides provided on both sides of the reinforcing frame viewed in the horizontal direction are stretched between the opposing side wall portions of the water storage tank via the reinforcing frame. It is arrange | positioned and this press contact part is made to give tension force to this side wall part. The reinforcing frame includes the linear rod-shaped support rods and a connecting member for connecting the linear rod-shaped support rods, and the connecting member includes a polygonal plate-shaped connecting plate, The outer peripheral surface is provided with a flat regulating contact surface having a rectangular shape or a square shape, and a concentric circular connection hole is formed on a line connecting the center of the connection plate and the center point of each side. A first connecting portion having a U-shaped member is provided at an end of the linear rod-shaped support rod, and the U-shaped member is an insertion formed between opposing holding pieces. In a state where the flat groove bottom surface of the groove portion is in contact with the regulation contact surface, the insertion hole provided concentrically with each of the holding pieces and the connection hole are in communication with each other, and the communication hole is in communication with each other. The screw shaft portion of the bolt is inserted from one side of the both holding pieces and the other holding piece It is characterized in that which can be connected to the connecting member the first coupling portion by the nut is tightened screwed to the screw shaft portion projecting from the.

The 4th aspect of the reinforcement structure of the water storage tank which concerns on this invention is a said 3rd aspect, The said connection member exhibits regular octagonal plate shape, It is characterized by the above-mentioned.

A fifth aspect of the water tank reinforcing structure according to the present invention is a reinforcing structure that reinforces the inside of a concrete water tank, and is a tertiary structure that is configured by connecting linear rod-shaped support rods having a straight bar shape as required. A reinforcing frame body having an original shape is accommodated inside the water storage tank, and upper and lower pressing contact portions provided on the upper and lower sides of the reinforcing frame body are between the top plate portion and the bottom plate portion of the water storage tank. It is disposed in a stretched state via the reinforcing frame, and the upper pressing contact portion applies a tensile force to the top plate portion, and the lower pressing contact portion applies a tensile force to the bottom plate portion. And the pressing contact portions on both sides provided on both sides of the reinforcing frame viewed in the horizontal direction are stretched between the opposing side wall portions of the water storage tank via the reinforcing frame. Arranged so that the pressing contact portion applies a tension force to the side wall portion, and the reinforcement The pressing contact portion provided in the body, is characterized in that provided at the tip portion of the length adjustable pressing member.

According to a sixth aspect of the water tank reinforcing structure according to the present invention, in the fifth aspect, the reinforcing frame is extended in the extension direction of the water tank to allow movement of the operator. A working path is provided.

7th aspect of the reinforcement structure of the water storage tank which concerns on this invention is a reinforcement structure which reinforces the inside of a concrete water storage tank, Comprising: The tertiary which comprised the linear rod-shaped support rod which exhibits a straight-bar shape required, and was comprised. A reinforcing frame body having an original shape is accommodated inside the water storage tank, and upper and lower pressing contact portions provided on the upper and lower sides of the reinforcing frame body are between the top plate portion and the bottom plate portion of the water storage tank. It is disposed in a stretched state via the reinforcing frame, and the upper pressing contact portion applies a tensile force to the top plate portion, and the lower pressing contact portion applies a tensile force to the bottom plate portion. And the pressing contact portions on both sides provided on both sides of the reinforcing frame viewed in the horizontal direction are stretched between the opposing side wall portions of the water storage tank via the reinforcing frame. It is arrange | positioned and this press contact part is made to give tension force to this side wall part. And the waterproof coating film which has elastic elasticity is formed in the whole inner surface of the side wall part of the water storage tank, and the upper surface of the bottom slab part, or a required part, and the press contact part is the waterproof coating film. It is characterized by being in contact with the surface of the protective material to be covered. Further, “a waterproof coating film having elastic elasticity is formed on the entire inner surface or the required portion of the inner side surface of the side wall portion and the bottom plate portion of the water tank, and the pressing contact portion is formed of the waterproof coating. The constituent requirement “abutted on the surface of the protective material covering the membrane” can be added to the reinforcing structure of the water storage tank according to any one of the first to sixth aspects.

The present invention has the following excellent effects.
(1) In the present invention, a reinforcing frame body having a three-dimensional form is accommodated inside the water tank, and the upper and lower pressing contact portions provided on the reinforcing frame body are a top plate portion and a bottom plate portion of the water tank. The left and right pressing contact portions provided on both sides when viewed in the horizontal direction of the reinforcing frame are provided between the opposing side wall portions of the water storage tank. It is arranged in a stretched state via the reinforcing frame.

  Thus, in the present invention, the upper and lower pressing contact portions and the left and right pressing contact portions are provided on the reinforcing frame body exhibiting a three-dimensional form. The reinforcing frame can be provided with a high degree of freedom so that a required tension force can be applied to a necessary portion set in consideration.

  Therefore, according to the present invention, it is possible to effectively reinforce an aged underground buried water tank from the inside, thereby improving a water tank's strength and suppressing a damage to the water tank. Use period can be extended. Moreover, since the damage to the top plate part and the side wall part of the water tank can be suppressed by improving the yield strength of the water tank in this way, secondary damage to the road and the surrounding environment above the water tank can be prevented. And since this invention employ | adopts the structure which provides a press contact part in a reinforcement frame, it is easy to give the tension force according to the grade of required reinforcement to the place which requires reinforcement, and workability improvement. The construction cost can be reduced.

(2) Since the reinforcing structure according to the present invention accommodates a reinforcing frame body having a three-dimensional form inside the water tank, unlike the conventional case where the frame body unit is stacked inside the water tank, the reinforcing frame is It is relatively easy to configure the reinforcing frame so that the inside of the water storage tank can be visually inspected through the straight rod-like support rods constituting the frame, and the operator can move inside the reinforcing frame. Therefore, it is easy to perform necessary repairs inside the water tank.

(3) In the case where a work path is provided in the reinforcement frame that extends in the direction of extension of the water storage tank so that the worker can move, the worker can move inside the reinforcement frame. Therefore, facilitation of assembly work of the reinforcing frame can be achieved. In addition, it is possible to facilitate the inspection work and repair work inside the water tank.

  In particular, the work path is assumed to have a rhombus shape when viewed from the front, and the upper portion thereof is configured to have a protruding V shape, and the lower portion thereof has a protruding V shape. In the case of the configuration, since the work path can be greatly expanded vertically, it is possible to facilitate the movement of the worker on the work path.

(4) When the work path is expanded vertically as described above, two linear connecting rods that are parallel to each other at the upper end positions of the V-shape are disposed on the lower portion that exhibits the V-shape. In the case where two linear tethers are configured to support both ends of the scaffold member from below, since the worker can work on the scaffold and perform work at a high place, When constructing the reinforcing structure, it is possible to facilitate the assembly work of the reinforcing structure. After the required assembling work is completed, the reinforcing structure can be configured by removing the scaffold member.

(5) In the case where the reinforcing frame body is constituted by connecting the straight rod-like support rods using a connecting member, the connecting member is constituted by a regular polygonal plate-like connecting plate, and the outer peripheral surface of the connecting plate In addition, a flat regulating contact surface having a rectangular shape or a square shape is provided, and a concentric circular connection hole is provided on a line connecting the center of the connection plate and the center point of each side. In addition, a configuration is adopted in which a first connecting portion including a U-shaped member having a flat groove bottom surface capable of coming into contact with the restriction contact surface is provided at an end portion of the linear rod-like support rod. In this case, the following special effects are produced.

  That is, when the groove bottom surface of the first connecting portion is brought into contact with the regulation contact surface, only one bolt is used when connecting the first connecting portion to the connecting member. Thus, the rotation of the first connecting portion with respect to the connecting member can be easily and economically achieved. In addition, since the connection state of the first connection portion with respect to the connection member is performed in a state where the restriction contact surface and the groove bottom surface are in contact with each other, a compressive load acts on the connection portion. In this case, this can be supported stably. Furthermore, in order to assemble the reinforcing structure by connecting the first connecting part and the connecting member using one bolt in this way, when maintaining the inside of the water storage tank, the reinforcing structure is removed by removing the bolt. It can be disassembled and the reinforcement structure can be reassembled after the required maintenance.

  In particular, when the connecting member has a regular octagonal plate shape, it is possible to connect the straight rod-shaped support rods that are directed to the connecting member from various directions, such as the vertical direction, the horizontal direction, and the oblique direction, to the connecting member. For this reason, the reinforcing frame can be easily configured using one type of connecting member, and the assembly work of the reinforcing frame can be simplified and the construction cost can be reduced.

(6) When adopting a configuration in which the pressing contact portion is provided at the tip portion of the pressing member that is provided on the reinforcing frame and can be adjusted in length, the upper and lower pressing contact portions and the left and right pressing contact portions It becomes easy to adjust the setting of the tension force by according to the situation of the reinforcing part.

(7) forming a waterproof coating having elastic elasticity on the entire inner surface of the side wall portion and the upper surface of the bottom plate portion of the water tank, or on a required portion of the inner surface or the upper surface of the bottom plate portion, When adopting a configuration in which the pressing contact portion is brought into contact with the surface of the protective material covering the waterproof coating, the waterproof coating extends elastically even when a crack generated inside the water storage tank expands to some extent. Therefore, it is possible to more reliably prevent leakage of water stored in the water tank. And since the said press contact part is contact | abutted on the surface of the protective material which covers this waterproofing coating film, this press contact part does not have a possibility of damaging a waterproof coating film.

It is a partially cutaway perspective view showing a reinforcing structure according to the present invention. It is a perspective view explaining the whole reinforcement structure concerning the present invention. It is a front view which shows the structure of the unit frame which comprises the reinforcement structure which concerns on this invention. It is a side view which shows a reinforcement structure. It is a top view which shows a reinforcement structure. It is a fragmentary perspective view which shows a reinforcement structure. It is a perspective view which shows a linear rod-shaped support rod. It is a perspective view which shows the 1st connection part of the edge part of a linear rod-shaped support rod, and the connection member with which this is connected. It is the side view and top view which show the state which connected the 1st connection part to the connection member. It is a disassembled perspective view explaining the structure of a 1st press member. It is a partial sectional side view which shows the state which connected the 1st press member to the connection member, and the top view explaining the structure of the connection part. It is a perspective view which shows the 2nd press member connected with the linear connecting rod which connects adjacent connecting members mutually, and this linear connecting rod. It is a perspective view shown in the state where the linear tether to which the 2nd press member was connected was connected to the connecting member. FIG. It is a front view which shows each aspect of the connection state of the linear rod-shaped support rod with respect to a connection member and a 1st press member. It is a front view which shows the other aspect of the connection state of the linear rod-shaped support rod with respect to a connection member, and the 1st press member. It is a front view which shows the other aspect of the connection state of the linear rod-shaped support rod with respect to a connection member, and the 1st press member. It is a front view which shows the other aspect of the connection state of the linear rod-shaped support rod with respect to a connection member, and the 1st press member. It is a front view which shows the other aspect of the connection state of the linear rod-shaped support rod with respect to a connection member, and the 1st press member. It is a front view which shows the other aspect of the connection state of the linear rod-shaped support rod with respect to a connection member, and the 1st press member. It is a front view which shows the other aspect of the connection state of the linear rod-shaped support rod with respect to a connection member, and the 1st press member. It is a front view which shows the other aspect of the connection state of the linear rod-shaped support rod with respect to a connection member, and the 1st press member. It is a front view which shows the structure of the edge part frame which comprises the reinforcement structure which concerns on this invention. It is the perspective view and sectional drawing which show the fixing means which fixes the intermediate part of a linear connecting rod to a connection member. It is sectional drawing which shows the fixing means which fixes the edge part side of a linear connecting rod to a connection member. It is sectional drawing which shows the state which formed the waterproof coating film in the inner surface of the water tank. It is a perspective view which shows the state which comprised the base frame part of the reinforcement structure. It is a front view which shows the base frame part. It is a front view which shows the state which formed the triangular frame part above the base frame part. It is a front view which shows the comprised reinforcement frame. It is a front view which shows the comprised reinforcement structure. It is a front view which shows the edge part lower frame member which comprises a reinforcement structure. It is a front view which shows the state which comprised the triangular frame part on it. It is a front view which shows the edge part side of a reinforcement frame. It is a front view which shows the edge part side of a reinforcement structure. It is a front view which shows the scaffold comprised by mounting the both ends of the member for scaffolding on two linear connecting rods in parallel. It is a perspective view which shows the other aspect of a reinforcement structure. It is the front view. It is a front view which shows the edge part side of the reinforcement structure. It is a side view of the reinforcement structure. It is a top view of the reinforcement structure. It is a front view which shows the other aspect of a reinforcement structure. It is the fragmentary perspective view. It is a front view which shows the other aspect of a reinforcement structure. FIG. It is a side view which shows the reinforcement structure comprised inside the water storage tank divided into right and left by the partition part. It is a partially cutaway perspective view showing a reinforcing structure configured inside a cylindrical water tank. It is a perspective view which shows the whole structure of the reinforcement structure. It is a top view of the reinforcement structure. It is a side view of the reinforcement structure. It is the elements on larger scale of the side view. It is a fragmentary perspective view which shows the reinforcement structure. It is the top view which shows the other aspect of the reinforcement structure in a cylindrical water tank, and its partial enlarged view. It is the top view which shows the other aspect of the reinforcement structure in a cylindrical water tank, and its partial enlarged view. It is the top view which shows the other aspect of the reinforcement structure in a cylindrical water tank, and its partial enlarged view. It is the top view which shows the other aspect of the reinforcement structure in a cylindrical water tank, and its partial enlarged view. It is the top view which shows the other aspect of the reinforcement structure in a cylindrical water tank, and its partial enlarged view. They are the perspective view which shows the other aspect of a connection member with the connection side of a linear rod-shaped support rod, the perspective view which shows the state which connected the linear rod-shaped support rod to this connection member, and the top view and side view of the connection state. It is a front view which shows the other aspect of the connection board which exhibits regular polygon shape. The perspective view which shows the connecting plate which exhibits disk shape with the edge part side of a linear rod-shaped support rod, the perspective view which shows the state which connected the linear rod-shaped support rod to this connection member, and the top view and side view of the connection state It is. It is a front view which shows the other aspect of the connection member which exhibits disk shape. The perspective view which shows the straight rod-shaped support rod provided with the 1st connection part which has a some penetration hole, and a connection member, the perspective view which shows the state which connected this 1st connection part to the connection member, and the connection state It is a top view and a side view. It is a front view which shows the other aspect of the 1st connection part which has a some insertion hole. Other aspects of the connecting member are a perspective view showing the first connecting portion of the linear bar-like support rod connected to the connecting member, a cross-sectional view showing the connected state, and the connecting member as a straight connecting rod. It is sectional drawing which shows the state connected. It is the perspective view which shows the other aspect of a connection member with a linear rod-shaped support rod and a linear joining rod, and the perspective view which shows the state which connected the linear rod-shaped support rod to this coupling member, and connected the linear coupling rod. They are the perspective view which shows the other aspect of a connection member with a linear rod-shaped support rod and a linear joining rod, and sectional drawing which shows the state which connected the linear rod-shaped support rod and the linear coupling rod to this coupling member. It is the perspective view which shows the other aspect of a connection member with a linear rod-shaped support rod, the state which connected the 1st connection part of the linear rod-shaped support rod to this connection member, and the top view which shows the connection state. It is the perspective view which shows the other aspect of a connection member with a linear rod-shaped support rod, the state which connected the 1st connection part of the linear rod-shaped support rod to this connection member, and the top view which shows the connection state. It is the perspective view which shows the other aspect of a connection member with a linear rod-shaped support rod, the state which connected the 1st connection part of the linear rod-shaped support rod to this connection member, and the top view which shows the connection state. It is the perspective view which shows the other aspect of a connection member with a linear rod-shaped support rod, the state which connected the 1st connection part of the linear rod-shaped support rod to this connection member, and the top view which shows the connection state. It is sectional drawing which shows the other fixing means which fixes the intermediate part of a linear connecting rod to a connection member. They are the perspective view which shows the other fixing means which fixes a linear joining rod to a connection member, the perspective view which shows the state which connected the linear joining rod to this connection member, and the front view which shows the connection state. It is a perspective view which shows the other aspect of a 1st press member and a 2nd press member. It is a perspective view which shows the other aspect of a 1st press member and a 2nd press member. It is a perspective view which shows the other aspect of a 1st press member and a 2nd press member. It is sectional drawing which shows the other aspect of the cross-sectional form of a linear rod-shaped support rod. It is a front view which shows the other arrangement | positioning state of a press contact part.

  1 to 5, a water tank reinforcement structure (hereinafter referred to as a reinforcement structure) 1 according to the present invention reinforces an aged underground underground water tank 2 from the inside, and is a straight rod-like support rod. A reinforcing frame 5 having a three-dimensional configuration constituted by connecting the three as required is accommodated in the interior 6 of the water tank 2. The upper and lower pressing contact portions 7, 7 provided above and below the reinforcing frame body 5 are stretched through the reinforcing frame body 5 between the top plate portion 9 and the bottom plate portion 10 of the water storage tank 2. And the pressing contact portions 7, 7 on both sides of the reinforcing frame 5 seen in the horizontal direction are provided between the opposing side wall portions 11, 11 of the water tank 2. It is disposed in a stretched state via the frame body 5. The reinforcing frame 5 is provided therein with a work path 12 that extends in a direction orthogonal to the cross section of the water storage tank 2 (extension direction of the water storage tank 2) to allow the operator to move. Yes. As shown in FIG. 3, the working path 12 has a long hexagonal cylindrical shape when viewed in a direction perpendicular to the transverse section of the water storage tank 2, as shown in FIG. The upper portion 13 of the twelve is configured by connecting the straight bar-like support rods 3 so as to form a protruding V shape, and the lower portion 15 of the work path 12 is constituted by the straight bar-like support rods 3. Are connected to form a V-shaped protrusion below.

  Hereinafter, this will be described more specifically. The water storage tank 2 is, for example, a fire prevention water tank 2a that has been aged for about 50 years after construction and is constructed on the concrete. The fire prevention water tank 2a is constructed with a loose design standard and set load at the time of construction, and has a small amount of reinforcing bars and a low strength. Further, the yield strength is reduced due to corrosion of the internal rebar due to secular change. As shown in FIG. 3, the water storage tank 2 is a rectangular parallelepiped fireproof water tank having an inner horizontal cross-sectional portion 16 having a square shape and composed of a bottom plate portion 10, a side wall portion 11, and a top plate portion 9. is there. The length in the vertical direction F1 and the length in the left-right direction F2 of the inner transverse cross section 16 are set to 2800 mm, for example, and the length of the water tank 2 (length in the extending direction F3 of the inner vertical section 14) is, for example, It is set to 6600 mm. As shown in FIG. 4, the bottom plate portion 10 and the top plate portion 9 are provided with a manhole portion 17 and a water collecting pit 18 in a vertically opposed state.

  As shown in FIG. 6, the reinforcing frame 5 is connected to the straight bar-shaped support rod 3 and first connecting portions 20, 20 provided at both end portions 19, 19 of the straight bar-shaped support rod 3. A connecting member 21 to be connected and a linear connecting rod 22 that connects the connecting members 21 and 21 facing each other with a required interval as viewed in the extending direction F3 of the water storage tank 2 are provided. And the said press contact part 7 provided in this reinforcement frame 5 is connected to the said reinforcement frame 5, and is shown in FIGS. 1-6 at the front-end | tip part of the press members 23 and 25 which can adjust length. Is provided. In this embodiment, the pressing contact portion 7 is provided at the distal end portion of the first pressing member 23 connected to the connecting member 21 and adjustable in length. Further, it is connected to the end portion 24 of the linear connecting rod 22 and is provided at the distal end portion of the second pressing member 25 whose length can be adjusted. In the present embodiment, the pressing contact portion 7 provided on the first pressing member 23 is, as shown in FIG. 3, the upper surface 26 of the bottom plate portion 10, the lower surface 27 of the top plate portion 9, or the It abuts on the inner side surfaces 29, 29 of the opposite side wall portions 11, 11 as viewed in the left-right direction F2. Moreover, the said press contact part 7 provided in the said 2nd press member 25 is the inner surface 29 of the opposing side wall parts 11 and 11 seen in the said extension direction F3, as shown to FIGS. 29 abuts.

  In the present embodiment, the straight bar-shaped support rod 3 is made of a circular steel pipe which is formed relatively long and is subjected to rust prevention treatment, as shown in FIGS. 7 (A) and 7 (B). And the said 1st connection part 20 provided in the both ends 19 and 19 of this linear rod-shaped support rod 3 is comprised with the U-shaped member 30, as shown, for example in FIGS. The U-shaped member 30 is formed by bending the holding pieces 33, 33 so that they are opposed to each other at opposite sides 32, 32 of a rectangular plate substrate 31 fixed to the end portion 19 by welding or the like. , 33 is formed with an insertion groove 35. The both holding pieces 33, 33 are inclined plate portions 36, 36 whose base end side portions are inclined inward, and are tapered toward the distal ends 37, 37 of the inclined plate portions 36, 36 toward the front side. The flat plate portions 39, 39 having tip edges formed as arcuate edges are connected in parallel, and the flat plate portions 39, 39 have circular insertion holes 40, 40 with a common hole center. Is provided.

  In this embodiment, the distance between the cores of the insertion holes 40 and 40 of the first connecting portions 20 and 20 at both ends having such a configuration is set to two types of 633 mm and 941 mm. Therefore, in this embodiment, two types of linear bar-like support rods 3a and 3b having different lengths are used. The first straight bar-shaped support rod 3a having a long length is used as the vertical member 41 in the vertical direction and the horizontal member 42 in the horizontal direction that constitute the reinforcing frame 5, and the second straight bar-shaped support rod 3 having a short length. 3 b is used as an inclined member 116 in the inclination direction of the reinforcing frame 5. And the groove width of the said insertion groove part 35 of the said connection part 20 is set to 23.7 mm, for example, and the diameter of the said insertion holes 40 and 40 is set to 16 mm, for example.

  As shown in FIGS. 8 to 9, the connecting member 21 is configured with a regular octagonal plate-like connecting plate 45, and a line connecting the center 46 and the center point 49 of each side 47. On 48, eight concentric and circular connection holes 50 are provided in the thickness direction of the connection plate 45. A circular connecting hole 51 is provided in the central portion of the connecting plate 45. The connecting plate 45 having such a configuration can be formed as a single plate as a whole, or may be configured by laminating and integrating a plurality of thin plates. In the present embodiment, the connecting plate 45 is set to have a thickness of 22.5 mm and the length of each side 47 of the regular octagon is set to 75 mm.

  Accordingly, the connecting plate 45 has a rectangular flat regulating contact surface 53 having a width of 22.5 mm and a length of 75 mm. The distance between the opposing sides 47, 47 is set to 180 mm, the diameter of the connecting hole 50 is set to 16 mm, and the diameter of the connecting hole 51 is set to 36 mm. In the present embodiment, the connecting plate 45 is configured as a regular octagonal plate, and the eight connecting holes 50 are provided concentrically so as to correspond to the respective sides. Therefore, as shown in FIG. The straight bar-shaped support rod 3 that is directed from the various directions to the connecting member 21 can be connected to the connecting member 21. Therefore, as will be described below, the reinforcing structure 1 according to the present embodiment can be easily configured using one type of the connecting member 21.

  9A and 9B show a state in which the edge portion 55 of the connecting plate 45 is inserted into the insertion groove portion 35 of the first connecting portion 20, and in the inserted state, the flat portion With the restricting contact surface 53 in contact with the flat groove bottom surface (inner surface of the rectangular substrate 31) 56 of the insertion groove portion 35, the insertion holes 40, 40 are brought into a communication state concentric with the connection hole 50. Thus, a communication hole 57 is formed. 9 (A) and 9 (B) show a screw shaft portion in which the screw shaft portion 60 of the bolt 59 is inserted into the communicating hole 57 from the one 33a side of the holding pieces 33, 33 and protrudes from the other holding piece 33b. The structure which connected the said 1st connection part 20 to the said connection member 21 by screwing and fastening the nut 62 to 61 is shown. Since the regulation contact surface 53 is in contact with the groove bottom surface 56, the first connecting portion 20 does not rotate around the axis of the bolt 59, and the linear bar-like support rod 3 for the connecting member 21. The connection state is uniquely determined, and the connection state is stably maintained. Since the first connecting portion 20 and the connecting member 21 are connected by surface contact in this manner, the rotation of the first connecting portion 20 can be easily and economically prevented by using only one bolt 59. Will get. Then, since the straight bar-like support rod 3 is connected to the connecting member 21 in a state where the regulating contact surface 53 and the groove bottom surface 56 are in surface contact, a compressive load is applied to the connecting portion. When acting, this can be stably supported.

  The said 1st press member 23 is comprised from the cylindrical connection member 63 and the screw shaft press member 65, as shown to FIGS. The cylindrical connecting member 63 is a second connecting portion 67 having a U-shaped member 30 having the same configuration as that of the straight bar-like support rod 3 at one end of a round pipe-shaped pressing rod main body 66 formed relatively short. Is provided. Since the description of the configuration of each part of the U-shaped member 30 is the same as that in the first connecting portion 20, the same reference numerals are assigned to the same components and the detailed description thereof is omitted. . Further, the other end portion of the pressing rod main body 66 is configured as a screw cylinder portion 69 provided with a female screw portion 68 on the inner surface thereof. In the screw shaft pressing member 65, a lock nut 71 is screwed to an adjustment screw shaft 70 screwed to the screw cylinder portion 69, and a screw shaft rotation nut 72 is provided to the outer end of the adjustment screw shaft 70. The adjusting screw shaft 70 is fixed concentrically, and a small-diameter mounting shaft 75 is provided concentrically on the end surface 73 of the adjusting screw shaft 70. The pressing contact portion 7 is connected to the mounting shaft 75 along the axis of the mounting shaft 75. It is attached so that it can rotate freely.

  In this embodiment, as shown in FIGS. 10 to 11, the pressing contact portion 7 is provided with a circular concave portion 77 on the end surface side and a peripheral portion of the outer end portion 78 as an annular contact surface 79. An attachment hole 82 for inserting the attachment shaft 75 is provided at the center of the disk-like portion 80. Then, with the mounting shaft 75 inserted through the mounting hole 82, the snap ring 86 is fitted into an annular engagement groove provided on the peripheral surface of the shaft portion 83 protruding into the circular recess 77. This prevents the disc-shaped portion 80 from being detached from the mounting shaft 75. The shaft 83 is accommodated in the circular recess 77 so that the tip 87 does not protrude from the outer end 78 of the disk-shaped portion 80. The size of the abutment surface 79 is set so that it can abut against the lower surface 27 of the top plate portion 9, the upper surface 26 of the bottom plate portion 10, and the inner surface 29 of the side wall portion 11 in a stable state.

  If the dimension of the main part of the 1st press member 23 which has this structure is illustrated, the outer diameter of the said adjustment screw shaft 70 is set to 20 mm, and the length is set to 100 mm. Further, the length of the screw cylinder portion 69 is set to 100 mm, the length of the pressing rod main body 66 is set to 170 mm, and the diameter of the pressing contact portion 7 is set to 75 mm.

  Accordingly, the lock nut 71 is tightened after the screw shaft rotating nut 72 is rotated to adjust the screwed state of the adjusting screw shaft 70 with respect to the screw cylinder portion 69, so that the second connecting portion 67 can be tightened. The distance between the center of the provided insertion hole 40 and the end 78 of the disk-shaped portion 80 can be set as required, and the state can be fixed.

  In the present embodiment, the linear connecting rod 22 is made of a circular steel pipe that has been subjected to rust prevention treatment, as shown in FIG. Then, as shown in FIGS. 12 to 14, the second pressing member 25 is connected to the end portion 24 of the linear connecting rod 22 in the lateral direction passing through the connecting hole 51 of the connecting member 21. The configuration of the connecting portion 88 is the same as the configuration of the first pressing member 23, including the screw shaft pressing member 65, except that the configuration of the connecting portion 88 is different from that of the first connecting portion 20. The third connecting portion 88 includes a connecting tube portion 89. The connecting tube portion 89 has a cylindrical shape into which the end portion 24 of the linear connecting rod 22 is inserted, and an inner end surface portion 90 is connected to one end portion 91 of the pressing rod main body 66 having the same configuration as described above. It is fixed by welding or the like in a concentric state. A screw shaft 95 of a fixing screw 93 is screwed into a screw hole 92 provided in the peripheral surface portion of the connecting cylinder portion 89. However, the second pressing member 25 can be connected to the linear connecting rod 22 by tightening the set screw 93 in a state where the end portion 24 of the linear connecting rod 22 is inserted into the connecting cylinder portion 89. . Since the other components of the second pressing member 25 are the same as those of the first pressing member 23, the same reference numerals as those described above are given and the detailed description thereof is omitted.

  As described above, the reinforcing structure 1 is formed by providing the pressing contact portion 7 at a required portion of the reinforcing frame 5 having a three-dimensional form. In this embodiment, as shown in FIG. An end frame 101 disposed on the side portion 100 of the water intake portion 99 in which the manhole portion 17 and the water collecting pit 18 are vertically opposed to each other, and a required interval in the extending direction of the water storage tank 2 in other portions. A plurality of unit frame bodies 102 (for example, six pieces) are provided, and all the unit frame bodies 102 and the entire end frame body 101 are connected by the linear connecting rods 22 in the horizontal direction. Yes. In the present embodiment, the end frame body 101 is provided so as to avoid the water portion 99, and does not become an obstacle to the entry / exit of a person into the water tank, and an obstacle to the suction of stored water in the water collecting pit 18. This is in order not to become.

  In the present embodiment, the unit frame 102 has a bilaterally symmetric form as shown in FIG. 3, and is disposed in a stretched state between the top plate portion 9 and the bottom plate portion 10 of the water tank 2. At the same time, the water tank 2 is disposed in a stretched state between the opposing side wall portions 11, 11. More specifically, as shown in FIG. 3, the unit frame body 102 includes two longitudinal stretching members 103 each having a horizontal lower surface 27 and a bottom plate portion 10 of the top plate portion 9 of the inner cross section 16. The horizontal upper surface 26 of the horizontal upper surface 26 is vertically erected between the opposing left end side portion 107 and the right end side portion 109, and two of the lateral stretching members 110 are provided on the left and right sides of the inner cross section 16. The side walls 11, 11 are horizontally laid horizontally between the upper end side portions 112 and the lower end side portion 113 of the vertical inner side surfaces 29, 29 facing each other.

  As shown in FIGS. 3, 15, and 16, the left and right vertical strut members 103, 103 are linear in the vertical direction, and are vertically aligned with the first straight bar-shaped support rod 3a. The members 41a and 41b are connected to each other via an intermediate connecting member 21a, the first connecting portion 20 at the upper end of the upper vertical member 41a is connected to the upper connecting member 21b, and the lower The first connecting portion 20 at the lower end of the vertical member 41b is connected to a lower connecting member 21c, and the first connecting member 21b, 21c, 21b, 21c is vertically opposite to the first connecting member 21b, 21c, 21b, 21c. The second connecting portions 67 of the pressing members 23, 23 are connected.

  Further, the upper and lower lateral stretching members 110, 110 are formed as shown in FIGS. 3, 17, 15A, 16A, and FIGS. 3, 18, 15C. As shown in FIG. 16 (C), the left and right lateral members 42a and 42b, which are linear in the horizontal direction and are composed of the first straight rod-like support rod 3a, are connected via an intermediate connecting member 21d. The first connecting portion 20 at the left end of the left lateral member 42a is connected to a left connecting member (upper and lower connecting members 103 of the longitudinal stretching member 103 located on the left side) 21b, 21c, and The first connecting portion 20 at the right end of the right lateral member 42b is connected to a right connecting member (upper and lower connecting members of the longitudinal stretching member 103 located on the right side) 21b, 21c, Left and right first connecting members 21b, 21b, 21c, 2 c to each of the second connecting portion 67 of the reversed horizontally first pressing member 23 and 23 are connected.

  The intermediate connecting members 21a, 21d, 21a, 21d, 21d, 21a, and 21a, 21d adjacent to each other in the 45 ° inclination direction are connected by the inclined frame member 115, respectively. The inclined frame member 115 is formed as shown in FIGS. 3, 19, 17, and 15B, and as shown in FIGS. 3, 20, 15B, and 18. 3, as shown in FIG. 21, FIG. 17, FIG. 16 (B), and as shown in FIG. 3, FIG. 22, FIG. 16 (B), and FIG. The upper and lower inclined members 116a, 116b formed of the second straight bar-like support rod 3b are connected to each other via an intermediate connecting member 21e, and the first connecting portion 20 at the upper end of the upper inclined member 116a. Is connected to the upper connecting member 21d, 21a (the intermediate connecting member of the lateral stretching member 110 or the intermediate connecting member of the longitudinal stretching member 103) and the lower end of the lower inclined member 116b. The first connecting portion 20 is a lower connecting member (the vertical stretching member 1). The third intermediate coupling member or intermediate bracing member in the lateral direction of the bracing member 110) 21a, is connected to 21d.

  And, the connecting members 21b, 21c, 21c, 21b located at the corners of the square, and the intermediate connecting members 21e, 21e, 21e, 21e constituting the inclined frame members 115, 115, 115, 115, As shown in FIGS. 3, 15 (A), and 19, as shown in FIGS. 3, 15 (C), and 20, and as shown in FIGS. 3, 16 (A), and 21. Moreover, as shown in FIG. 3, FIG. 16 (C), and FIG. 22, they are connected by an inclined connecting member 117 composed of the second straight bar-like support rod 3b. Further, the intermediate connecting members 21e, 21e constituting the upper and lower inclined frame members 115, 115 are as shown in FIG. 3, FIG. 19, FIG. 20, and as shown in FIG. 3, FIG. 21, FIG. Are connected by a vertical connecting member 119 comprising the second straight bar-like support rod 3a.

  The first pressing members 23 and 23 are connected to the intermediate connecting members 21d and 21d constituting the upper and lower lateral stretching members 110 and 110 in the reverse direction in the vertical direction. The first pressing members 23, 23 are connected to the intermediate connecting members 21a, 21a constituting the left and right vertical tension members 103, 103 in the opposite direction in the left-right direction.

  In the unit frame 102 having such a configuration, as shown in FIG. 3, the upper and lower inclined frame members 115, 115, 115, 115 and the left and right vertical connecting members 119, 119 project downward. A work path forming opening 122 having a hexagonal frame shape that is long in the vertical direction is provided with a portion 120 having a V-shape and a portion 121 having a protruding V-shape. The surrounding portion is a truss structure portion 125 having a stable structure in which a large number of isosceles triangular frame portions 123 are arranged.

  Further, as shown in FIG. 23, the end frame body 101 is installed on the side part 100, and is constructed on the basis of the unit frame body 102, and the intake portion 99 exists. In the portion, the frame portion is omitted. Specifically, in the unit frame body 102 shown in FIG. 3, the right vertical stretching member 103a (FIG. 3), the upper and lower right lateral members 42b and 42b connected thereto, and the upper and lower The inclined members 116b and 116a, the upper and lower inclined connecting members 117 and 117, and the first pressing members 23, 23, and 23 that protrude in the horizontal direction are omitted. The pressing contact portions 7, 7 of the upper two first pressing members 23, 23 are in contact with the lower surface 27 of the top plate portion 9 on the side of the manhole portion 17, These two first pressing members 23, 23 are in contact with the upper surface 26 of the bottom slab portion 10 on the side of the water collecting pit 18. The left and right intermediate connecting members 21e, 21e and 21e, 21e, which are positioned above and below, are connected by horizontal connecting members 128, 128 made up of the second linear rod-shaped support rod 3a.

  As shown in FIGS. 2 to 3, 4 to 5, and 23, six unit frame bodies 102 having such a configuration are placed at a necessary interval in the extending direction F <b> 3 of the water tank 2 (in this embodiment, For example, the end frame body 101 is disposed in the side portion 100 while being arranged in parallel (with an interval of 1000 mm). With the unit frame body 102 and the end frame body 101 arranged side by side in this way, the arrangement in the extension direction F3 of the connecting member 21 of each part constituting the unit frame body 102 and the end frame body 101 is performed. As shown in FIGS. 2 and 4 to 5, the state is an arrangement state in which the connecting members 21 of the unit frame body 102 a located at the end portion overlap in the horizontal direction. Accordingly, twelve rows of communication connection holes 126 in a horizontal communication state with a common hole core are formed. In FIG. 2, some columns are indicated by alternate long and short dash lines.

  As shown in FIGS. 2 and 4 to 6, the linear connecting rods 22 in the horizontal direction (horizontal direction) are inserted in the horizontal state into the communication connecting holes 126 configured as described above. In addition to being formed as a whole, the linear connecting rod 22 may be configured by linearly connecting members having a predetermined length. In this embodiment, as shown in FIGS. 2 and 4 to 5, communication connecting holes related to the intermediate connecting members (inner four corner connecting members) 21 e, 21 e, 21 e, 21 e constituting the inclined frame member 115. As for the linear connecting rod 22 inserted through 126, 126, 126, 126, its end portion 24 is inserted into the connecting tube portion 89 of the second pressing member 25 as shown in FIG. Yes. When the fastening bolt 93 is tightened in the inserted state as described above, as shown in FIGS. 2 and 4 to 5, it protrudes in the opposite direction as viewed in the extension direction F <b> 3 at both ends of the linear connecting rod 22. As a result, the second pressing members 25 are connected. The second pressing member 25 is not connected to the linear connecting rods 22 other than the linear connecting rods 22a, 22a, 22a, 22a (FIGS. 4 to 5) at the four corners.

  An example of the connecting means 127 between the linear connecting rod 22 in the lateral direction and each connecting member 21 is a fixed cylinder inserted through the linear connecting rod 22 so as to sandwich the connecting member 21 as shown in FIG. The connecting member 21 is held by the bodies 129 and 129. In this clamped state, as shown in FIG. 24B, when the fastening screw 131 that is screwed into the screw hole 130 provided in the peripheral surface portion of the fixed cylinder 129 is tightened, the linear connecting rods 22 are connected to each other. It is fixed to the member 21. As shown in FIG. 25, such a connecting means 127 can be similarly employed on the end side of the linear connecting rod 22 to which the second pressing member 25 is not connected. Further, in the portion where the second pressing member 25 is connected to the end portion 24 of the linear connecting rod 22, as shown in FIGS. The linear connecting rod 22 can be fixed to the connecting member 21 by holding the fixed cylindrical body 129 and tightening the fixing screw 93 of the connecting cylinder portion 89 and the fixing screw 131 of the fixed cylinder 129. .

  The reinforcing structure 1 configured as described above reinforces the water storage tank 2 from the inside by supporting the portion to be reinforced of the water storage tank 2 via the first and second pressing members 23 and 25. As for the arrangement position of the first pressing member 23 and the arrangement position of the second pressing member 25, the top plate portion 9, the side wall portion 11 and the bottom plate portion 10 are subjected to a strength investigation in advance. It is set as required based on this. Upper and lower pressing contact portions 7, 7 provided on the upper and lower sides of the reinforcing frame 5 are disposed so as to be stretched between the top plate portion 9 and the bottom plate portion 10 of the water storage tank 2, and The left and right pressing contact portions 7, 7 provided on the left and right sides of the reinforcing frame 5 are disposed so as to be stretched between the opposing side wall portions 11, 11. In the portion where the first pressing member 23 is connected to the middle portion in the vertical direction and the middle portion in the left and right direction, the end portions of the inclined frame members 115, 115, 115, 115 in the vertical and left and right directions are connected to each other. It becomes a stretched state through the rhombus-shaped frame portion 132 (FIG. 3). The tension force to be applied is also set in consideration of the necessary reinforcement strength based on the strength survey.

  The tension force is set by appropriately rotating the screw shaft rotating nut 72 (FIGS. 10 to 11), and as shown in FIG. 11, the pressing contact portion 7 from the end 133 of the pressing rod main body 66 is set. Adjust the amount of protrusion as required. At this time, as described above, the mounting shaft 75 provided at the end of the adjusting screw shaft 70 is inserted into the mounting hole 82 provided in the pressing contact portion 7 and is prevented from coming off by the snap ring 86. Therefore, when the screw shaft rotation nut 72 is rotated in a state where the contact surface 79 of the outer end portion of the press contact portion 7 is in contact with the inner surface 29 of the side wall portion 11, It is possible to prevent the contact portion 7 from rotating together. After the tension force is set in this manner, as shown in FIG. 11, the protruding amount of the adjusting screw shaft 70 can be fixed by tightening the lock nut 71, and the required tension state is maintained. .

  As described above, the reinforcing frame 5 having a three-dimensional form and having the truss structure portion disposed in the peripheral portion, and the first and second pressing members disposed at appropriate positions around the reinforcing frame 5 The reinforcing structure 1 having a stable structure composed of 23 and 25 is formed. However, the required tensioning action between the top plate portion 9 and the bottom plate portion 10 can effectively disperse the load due to automobile load or earth pressure acting on the top plate portion 9 to the bottom plate portion 10. In addition, the earth pressure applied to the side wall part 11 by the required tension action between the side wall parts 11 and 11 opposed in the left-right direction and the required tension action between the side wall parts 11 and 11 opposed in the extension direction F4. Can support effectively. In addition, it can support the load during an earthquake. For this reason, the old underground water storage tank 2 can be effectively reinforced from the inside. Thereby, the yield strength of the water storage tank 2 can be improved and damage to the water storage tank can be suppressed. For example, the top plate portion 9 and the side wall portion 11 of the water storage tank 2 are damaged and the road above the water storage tank cannot be used. It is possible to prevent the occurrence of such a situation (FIGS. 3 to 5). Moreover, the leakage of the stored water in a water tank can be suppressed with suppression of the damage of this water tank, and the use period of an aged water tank can be extended.

  Considering the bar arrangement status of each part of the aging water tank 2 (reinforcement status such as the presence or absence of reinforcing bars and bar arrangement density) and the internal situation of the water tank 2 (such as the occurrence of cracks), vibration during an earthquake If there is a risk of water leakage due to expansion of cracks, etc., the entire inner surface 135 of the water tank except the lower surface 27 of the top plate portion 9 (the entire inner surface 29 of the side wall portion 11 and the entire upper surface 21 of the bottom plate portion 10). Or a waterproof coating (for example, about 1 to 2 mm) having elastic elasticity as shown in FIG. 136) may be formed. Such a waterproof coating 136 can be formed by spraying or ironing a resin such as silicon or asphalt. When such a waterproof coating 136 is formed, for example, as shown in FIG. 26 (B), even when the crack 137 expands to some extent, the waterproof coating 136 can elastically extend and follow this, The leakage of stored water can be prevented more reliably. When such a waterproof coating 136 is formed, the waterproof coating 136 is covered with a protective material 139 such as a non-woven fabric as shown in FIG. The pressing contact portions 7 of the first and second pressing members 23 and 25 are brought into contact with the surface 140 of the protective material 139. Such a configuration also corresponds to the arrangement of the upper and lower pressing contact portions 7 and 7 and the left and right pressing contact portions 7 and 7 in a stretched state.

  And, as shown in FIGS. 2 to 3, the work path forming opening 122 communicates with the extension direction of the water storage tank 2 so as to extend in the horizontal direction inside the reinforcing frame 5. The work path 12 that allows the person to move is formed. Since the upper portion 13 of the work path 12 has a protruding V shape and the lower portion 15 of the work path 12 has a protruding V shape, the upper and lower portions of the working path 12 are greatly expanded vertically. The operator can move more easily than a horizontal work path.

  Next, a construction process for configuring the reinforcing frame 5 having the above configuration inside the water storage tank 2 will be described. First, as shown in FIGS. 27 and 28, in the portion where the six unit frame bodies 102 are to be disposed, the lower horizontal stretching member 110 is formed, and the left and right connecting members 21c, 21c The first pressing members 23, 23, 23 are connected downward to each of the intermediate connecting members 21 d to form a unit lower frame member 141, and the pressing contact of the first pressing members 23, 23, 23 is made. The contact surfaces 79, 79, 79 at the lower ends of the contact portions 7, 7, 7 are brought into contact with the upper surface 26 of the bottom plate portion 10. Further, the abutting surfaces 79, 79 at the tips of the pressing abutting portions 7, 7 of the first pressing members 23, 23 connected in the opposite direction in the horizontal direction are used as the inner side surfaces 29 of the side wall portions 11, 11. 29, and the adjusting screw shaft 70 is appropriately rotated to bring the lower lateral tension member 110 into a required tension state between the opposing side walls 11, 11, and tighten the lock nut 71. To fix the stretched state.

  Further, in the portion where the end frame 101 is to be disposed, as shown in FIGS. 27 and 32, connecting members 21c and 21d are connected to both ends of the lateral member 42a and the connecting members 21 and 21 are connected to the connecting members 21 and 21, respectively. The first pressing members 23, 23 are connected downward to constitute an end lower frame member 142, and the contact surfaces 79, 79 at the lower ends of the pressing contact portions 7, 7 of the first pressing members 23, 23. Is brought into contact with the upper surface 26 of the bottom plate portion 10. Thus, the end lower frame member 142 is configured.

  The horizontal stretching members 110 under the unit lower frame member 141 thus configured and the lateral members 42a of the end lower frame member 142 are in a horizontal state and are at the same height.

  And the arrangement | positioning state in the extension direction F3 of the storage tank of the connection member 21 of each part which comprises the unit lower frame member 141,141,141,141,141,141 of this juxtaposed state and the edge part lower frame member 142, As shown in FIG. 27, the arrangement state is overlapped in the horizontal direction. The group of connecting members arranged in this way is referred to as a first-stage connecting member group 21A. Therefore, with respect to the first-stage connecting member group 21A, three rows of connecting holes 126 (FIG. 27) are formed in a horizontal communication state with a common hole core. Thereafter, as shown in FIG. 27, the linear connecting rods 22, 22, 22 in the lateral direction are inserted into the communication connecting holes 126, 126, 126, respectively. Then, in the same manner as described above, the linear connecting rod 22 is fixed to the connecting member 21 (FIGS. 24 to 25). As a result, the base frame portion 143 of the reinforcing structure 1 is configured.

  Thereafter, as shown in FIG. 29, for each unit lower frame member 141, the first connecting portion 20 below the vertical member 41b is connected to the left and right connecting members 21c, 21c, and the vertical member The first connecting portions 20 and 20 on 41b and 41b are connected to the connecting members 21a and 21a. Thereafter, the first connecting portions 20 and 20 at both ends of the inclined frame member 115 are connected to the intermediate connecting member 21d and the connecting member 21a at the upper end of the vertical member 41b, respectively. Also, as shown in FIG. 29, the left and right connecting members 21c, 21c and the intermediate connecting member 21e constituting the inclined frame member 115 are connected by the inclined connecting member 117. As a result, right-angled triangular frame parts 123a, 123a are provided on both upper sides of the lower lateral stretching member 110, and the triangular frame part 123a is vertically moved by the inclined connecting member 117. Are divided into triangular frame portions 123 and 123.

  As for the end lower frame member 142, as shown in FIG. 33, the first connecting portion 20 below the vertical member 41b is connected to the outer connecting member 21c, and the first upper portion above the vertical member 41b is connected. One connecting portion 20 is connected to the upper connecting member 21a. As shown in FIG. 33, the first connecting portions 20, 20 at both ends of the inclined frame member 115 are connected to the inner connecting member 21d and the upper connecting member 21a, and the outer connecting member 21c. And the intermediate connecting member 21e constituting the inclined frame member 115 are connected by the inclined connecting member 117. As a result, a right triangular triangle frame portion 123a is formed on the upper side of the horizontal frame member 42a, and the triangular frame portion 123a is divided into upper and lower triangular frame portions 123 and 123 by the inclined connecting member 117. Yes. In addition, the first connecting portion 20 below the inclined member 116b is connected to the inner connecting member 21d, and the first connecting portion 20 above the inclined member 116b is connected to the upper connecting member 21e. Further, the intermediate connecting member 21e and the upper connecting member 21e at the same height are connected by a horizontal connecting member 128. Thus, a triangular frame portion 124 is formed adjacent to the lower triangular frame portion 123.

  In this way, when the second-stage connecting member group 21B and the third-stage connecting member group 21C are formed, a hole core is formed with respect to the second-stage connecting member group 21B and the third-stage connecting member group 21C. A common connection hole 126 is formed in a horizontal communication state in common. Thereafter, the linear connecting rod 22 in the lateral direction is inserted into each of the communication connecting holes 126, and the linear connecting rod 22 is fixed to the connecting member 21 in the same manner as described above. Thus, the lower frame portion 145 of the reinforcing frame 5 is configured.

  Thereafter, as shown in FIGS. 30 and 34, the upper frame portion 146 is configured in a vertically symmetrical manner with the lower frame portion 145 configured as described above. Then, the intermediate connecting members 21e, 21e, 21e, 21e of the inclined frame members 115, 115 that are vertically opposed to each other are connected by the vertical connecting member 119. As a result, a fourth-stage connecting member group 21D and a fifth-stage connecting member group 21E are formed. With respect to the fourth-stage connection member group 21D and the fifth-stage connection member group 21E, a communication connection hole 126 that is in a horizontal communication state with a common hole center is formed. Thereafter, the linear connecting rod 22 in the lateral direction is inserted into each of the communication connecting holes 126, and the linear connecting rod 22 is fixed to the connecting member 21 in the same manner as described above. Then, as shown in FIGS. 2 and 4 to 5, the second pressing members 25, 25 are provided at both ends of the linear connecting rods 22, 22, 22, 22 located at the four corners on the inner side as described above. Connect according to the procedure. In addition, as shown in FIG. 31, in the third-stage connecting member group 21C located on the left and right, except for those present in the side portion 100 (FIG. 2), each connecting member 21a is provided with a horizontal direction. In the reverse direction, the first connecting portion 20 of the first pressing members 23, 23 is connected, and the outer ends of the pressing contact portions 7, 7 of the first pressing members 23, 23 are in contact with each other. The surfaces 79 and 79 are brought into contact with the inner side surfaces 29 and 29 of the side wall portions 11 and 11. Then, the upper and lower pressing contact portions 7 and 7 and the left and right pressing contact portions 7 and 7 are set in a required tension state, and the lock nut 71 is tightened to fix the tension state in the vertical and horizontal directions. Thereby, as shown in FIG. 31, the said reinforcement structure 1 is comprised.

  When the reinforcing frame 5 is constructed as described above, the two parallel straight lines on the inner side constituting the lower frame portion 145 are shown by a one-dot chain line in FIG. 29 and enlarged in FIG. Since the scaffold 150 can be configured by placing both end portions 149, 149 of the scaffold member 147 on the joint rods 22a, 22a, when configuring the reinforcing structure 1 of the water tank 2 having a high height, Since the both ends 149 and 149 can ride on the scaffold 150 supported in a stable state and can move the work path 12 and can work on the scaffold 150 at a high place, the assembly of the upper frame portion 146 is facilitated. Can be done. Further, the adjustment operation of the pressing force of each of the first pressing members 23 can be easily performed on the scaffold 150. Then, after the required assembling work is completed, the reinforcing member 1 as shown in FIG. 2 can be configured by removing the scaffold member 147.

  In addition, after the reinforcement structure 1 is configured in this way, when the inside of the water storage tank 2 is inspected or the inside needs to be repaired, an operator can easily move the work path 12, Since the unit frame bodies 102 are arranged in parallel with a relatively large interval, and the distance between the upper and lower linear connecting rods 22 and 22 in each portion is also relatively large, the operator can connect the linear connecting rods in each portion. It is also possible to move between 22 and 22 appropriately. Thus, such inspection work and repair work can be performed relatively easily.

  FIGS. 37 to 41 show another embodiment of the reinforcing structure 1. The vertical stretching member 103 that is stretched between the top plate portion 9 and the bottom plate portion 10, and the opposing side wall portions 11, 11. As shown in FIGS. 37 to 38 and FIG. 41, the lateral stretching members 110 that are stretched between them are arranged in a lattice shape as seen in the transverse section of the water tank 2, and as shown in FIG. 40, As shown in FIG. 37, the water intake portion 99 has a configuration in which the water tank 2 is arranged in a lattice shape when viewed in the longitudinal section, and the manhole portion 17 and the water collecting pit 18 are provided in a vertically opposed state. In addition, the longitudinal tension member 103 and the lateral tension member 110 are omitted.

  More specifically, five unit frame bodies 102 are arranged at a required interval in the extending direction F3 of the water storage tank 2, and end frame bodies 101 are arranged on the side portions 100 of the water intake portion 99. Become.

  In the present embodiment, as shown in FIGS. 38 to 39, the unit frame body 102 is a vertical tension member disposed in a tension state between the top plate portion 9 and the bottom plate portion 10 of the water tank 2. Four of 103 are arranged in parallel in the direction (left-right direction) F2 orthogonal to the extension direction of the water storage tank 2 at equal intervals (for example, with an interval of 700 mm), and are stretched between the opposing side wall portions 11 and 11. The three horizontal stretching members 110 arranged in a state are arranged at equal intervals (for example, at an interval of 1050 mm) and integrated as a whole.

  As shown in FIG. 38, the vertical stretching member 103 is straight in the vertical direction, and has a configuration similar to that of the vertical member 41 shown in FIG. 41a and 41b are connected to each other via the connecting member 21, and the connecting members 21 and 21 are connected to the upper end of the upper vertical member 41a and the lower end of the lower vertical member 41b. , 21 has a configuration in which the first pressing members 23, 23 are connected in the opposite direction in the vertical direction. The upper and lower vertical members 41a and 41b have a length of 941 mm, for example.

  Further, as shown in FIG. 38, the laterally extending member 110 is disposed in a state of being stretched between the opposing side wall portions 11 and 11, and has a straight line shape in the horizontal direction. The lateral stretching member 110 is a short member having the same configuration as the lateral member 42 shown in FIG. 7A, and the three lateral members 42, 42, 42 are the longitudinal stretching members. The connecting members 21 and 21 are connected in a straight line via the connecting members 21 and 21 constituting the main body 103, and the connecting members 21 and 21 are connected to the left and right ends thereof. The first pressing members 23 and 23 are connected to the left and right connecting members 21 and 21 in the opposite directions when viewed in the horizontal direction. The transverse member 42 has a length of 591 mm.

  As shown in FIG. 37, five unit frame bodies 102 having such a configuration are arranged side by side in the extending direction F3 of the water storage tank 2 at equal intervals (for example, at an interval of 1000 mm), and the side In the side portion 100, the end frame body 101 is disposed.

  As shown in FIG. 39, the end frame body 101 is configured based on the unit frame body 102, and the frame portion is omitted in the portion where the water intake portion 99 exists. Specifically, the right vertical stretching member 103, the two lateral members 42 and 42 connected thereto, and the three first pressing members 23, 23, 23 projecting in the horizontal direction, Is omitted, and three of the longitudinal stretching members 103 are arranged at equal intervals, and these are connected in a three-stage manner with a horizontal frame member 151. Further, the three first pressing members 23, 23, 23 protruding upward are in contact with the lower surface 27 of the top plate portion 9 on the side of the manhole portion 17, and downward The three first pressing members 23, 23, 23 projecting to the side are in contact with the upper surface 26 of the bottom slab portion 10 on the side of the water collecting pit 18.

  As shown in FIGS. 40 to 41, the arrangement state of the connecting member 21 arranged in each part in the state where the unit frame 102 and the end frame 101 are arranged side by side is a unit located at the end. The connecting members 21 of the frame body 102a are arranged in an overlapping state in the horizontal direction. Accordingly, twelve rows of communication connection holes 126 in a horizontal communication state with a common hole core are formed.

  However, as shown in FIGS. 40 to 41, the entire unit frame 102 and the end frame 101 arranged in parallel are connected to each of the communication connecting holes 126 as shown in FIGS. 126 is inserted. In the present embodiment, as shown in FIG. 41, the end portions of the linear connecting rods 22 in the same way as shown in FIG. 24 is inserted into the connecting cylinder part 89 of the second pressing member 25, and the fixing screw 93 of the connecting cylinder part 89 and the fixing screw 131 of the fixed cylinder 129 are tightened. Thus, the second pressing member 25 is connected to both ends of the linear connecting rod 22 so as to protrude outward as viewed in the direction of extension of the water storage tank. The arrangement | positioning site | part of this 2nd press member 25 and 25 is set as required in consideration of the required reinforcement of a water storage tank. In addition, the connection state of this linear connecting rod 22 and each connection member 21 is the same as that shown in FIG. 24 and FIG.

  Thus, the reinforcing structure 1 including the reinforcing frame 5 having a three-dimensional form and the first and second pressing members 23 and 25 constituting the upper, lower, left and right pressing contact portions 7 is configured. When the reinforcing structure 1 having such a configuration is used, it is possible to effectively reinforce the aged underground buried water storage tank 2 from the inside by the required tension action in the vertical direction F1 and the required tension action in the left-right direction F2. The pressing abutment portion 7 causes a tension force between the top plate portion 9 and the bottom plate portion 10 and a tension force between the side wall portions 11 and 11 opposed in the left-right direction F2 to face each other in the extension direction F3. The tensile force between the side wall portions 11 and 11 takes into account the necessary reinforcing strength in the supported portion supported by the pressing contact portion 7, and the protruding length of the adjusting screw shaft 70 of the first pressing member 23. Adjust and set as required. Thereby, the yield strength of the water storage tank 2 can be improved and the destruction of the water storage tank can be prevented. Moreover, the leakage of the stored water in a water tank can be suppressed, and the use period of this aged water tank can be extended. Even when the reinforcing frame 5 is configured in this way, by configuring a relatively large gap between the adjacent longitudinal stretching members 103, 103 and between the adjacent lateral stretching members 110, 110, Since the operator can move through the gap, the inside of the water tank can be inspected and the inside of the water tank can be repaired.

  Considering the bar arrangement (rebar presence / absence and density, etc.) in each part of the aging water tank 2 and the internal situation (crack generation, etc.) of the water tank, the crack expands due to vibration during an earthquake and leaks. In the case where there is a fear, the waterproof coating 136 (FIG. 26) is preferably formed on the inner surface of the water storage tank excluding the lower surface of the top plate portion in the same manner as described above.

  42 to 45 show another embodiment of the reinforcing structure 1, and upper and lower pressing contact portions 7 and 7 are provided on a reinforcing frame body 5 having a three-dimensional form. The reinforcing structure 1 includes a large number of unit frame bodies 102 arranged in parallel in the extending direction F3 of the water storage tank at substantially equal intervals, and the entire unit frame bodies 102 arranged in a horizontal direction are connected by a linear connecting rod 22 in the horizontal direction. The case where it connects is shown. In the present embodiment, a water intake portion 99 composed of a manhole portion 17 and a water collecting pit 18 provided so as to face each other is provided near one end side of the water storage tank 2, and the unit frame 102 is formed as shown in FIG. As shown in FIG. 3, the water intake portion 99 is straddled.

  In the present embodiment, as shown in FIGS. 42 to 43, the unit frame 102 is provided with longitudinal stretching members 103 arranged at intervals in a direction perpendicular to the extending direction F3 of the water storage tank. Directional tension members 110 are arranged vertically spaced apart from each other so as to form a square frame. The longitudinal stretching member 103 is disposed in a stretched state between the top plate portion 9 and the bottom plate portion 10 of the water storage tank 2 and has a straight line in the vertical direction. The vertical stretching member 103 has connecting members 21 and 21 connected to upper and lower ends of the vertical member 41 having the same structure as described above, and the first pressing member is connected to each of the upper and lower connecting members 21 and 21. 23 and 23 are connected so as to protrude in the opposite direction in the vertical direction.

  Further, the lateral stretching member 110 is disposed in a stretched state on the opposing side wall portions 11 and 11, and has a straight line shape in the horizontal direction. The lateral stretching member 110 connects the adjacent upper connecting members 21 and 21 and the lower connecting members 21 and 21 with the horizontal members 42 and 42 having the same configuration as described above, and the upper and lower connecting members. 21 and 21 are constructed by projecting the first pressing members 23 and 23 in the horizontal direction in the opposite direction. In this embodiment, as shown in FIGS. 42 to 43, the upper and lower connecting members 21 and 21 at the diagonal positions are connected to each other by the inclined member 43 having the same structure as described above, so that the unit frame 102 is reinforced. Has been.

  Then, in the state where the unit frame body 102 and the end frame body 101 are arranged side by side in this way, the arrangement state of the connecting member 21 arranged in each part is positioned at the end part as shown in FIGS. The unit frame body 102a is arranged so as to overlap the connecting members 21 in the horizontal direction. Therefore, four rows of communication connection holes 126 in a horizontal communication state with a common hole core are formed.

  However, in the entire unit frame 102 and end frame 101 arranged side by side, the linear connecting rod 22 is inserted into each communication connecting hole 126 for each row of the communication connecting holes 126. As shown in FIG. 14, both end portions 24, 24 of each linear connecting rod 22 are inserted into the connecting cylinder portion 89 of the second pressing member 25, and When the set screw 93 and the set screw 131 of the fixed cylinder 129 are tightened, the second pressing members 25 and 25 are connected to both ends of each linear connecting rod 22 so as to protrude in the opposite horizontal direction. Has been. In addition, the connection state of this linear connecting rod 22 and each connection member 21 is the same as that shown in FIG. 24 and FIG.

  The reinforcing structure 1 having such a configuration is the above-mentioned obsolete underground burial through the first and second pressing members 23, 25, by the required vertical action and the required horizontal action. The water tank 2 can be effectively reinforced from the inside.

  46, the water tank 2 is divided into two left and right water tank parts 153 and 153 by an intermediate partition part 152, and the left and right water tank parts 153 and 153 are provided in the communication hole (FIG. 46). It shows the reinforcing structure 1 of the water storage tank in the case where it is communicated through (not shown). In this case, for example, as shown in FIG. 46, the second pressing members 25, 25 connected to the appropriate end portions of the linear connecting rod 22 in the horizontal direction are formed between the side wall portion 11 and the partition wall portion 152. It is made a state of tension between.

  47 to 52 show a case where the reinforcing structure 1 according to the present invention is applied to an aging cylindrical water tank 2 constructed by site-in-place construction, and the reinforcing structure 1 is a unit frame. Five of 102 are juxtaposed in the water tank 2 in the vertical direction at substantially equal intervals, and the entire unit frame 102 arranged in parallel is connected by a vertical linear connecting rod 22.

  In the present embodiment, as shown in FIG. 49, the unit frame 102 is formed by combining two square frames 156 and 156 with a 45-degree positional shift in the circumferential direction in plan view. The lengths of one side 157 of the frame 156, 156 are set equal. And the linear frame member 159 which comprises this one side 157 is comprised by connecting the three linear rod-shaped support rods 3 which have the said structure with the said connection members 21 and 21, and each square frame 156,156. The connecting member 21 is disposed at the corner of each other, and the ends of the orthogonal frame members 159 and 159 that are orthogonal to each other are connected to each other via the connecting member 21. Accordingly, the two square frames 156 and 156 have the connecting members 21 at their four corners.

  In addition, the inside of one square frame 156a is a lattice shape by a first linear frame member 159c and a second linear frame member 159d which are parallel to the orthogonal linear frame members 159a and 159b. It is divided into Both the first linear frame member 159c and the second linear frame member 159d are formed by connecting three linear rod-shaped support rods 3 having the above-described configuration via the connecting members 21 and 21. Both ends thereof are connected to opposing connecting members 21 and 21 included in the opposing linear frame members 159a and 159b. The lattice 160 located in the center is connected by diagonal frame members 161 and 161, and the diagonal frame members 161 and 161 are connected by using the connection member 21 in common. And the said 1st press member 23 is the radial direction (the said water tank 2 which exhibits cylindrical shape) to the said connection member 21 arrange | positioned at all the corner | angular parts of the said two square frame 156,156. As shown in FIG. 51, the contact surface 79 of the pressing contact portion 7 is in contact with the circular inner peripheral surface 162 of the water storage tank 2. Has been made.

  Then, in a state where five of the unit frame bodies 102 are arranged in parallel in the vertical direction, the arrangement state of the connecting members 21 arranged in the respective parts is as shown in FIG. 50 in the unit frame body 102a located at the upper end. It is set as the arrangement | positioning state which overlaps with each connection member 21 of an up-down direction. Therefore, 20 rows of communication connection holes 126 in the vertical communication state with a common hole core are formed.

  However, in the entire unit frame 102 arranged in parallel, the linear connecting rods 22 in the vertical direction are inserted into the communicating connecting holes 126 for each row of the connecting connecting holes 126. Then, as shown in FIG. 14, both end portions 24, 24 of each linear connecting rod 22 are inserted into the connecting cylinder part 89 of the second pressing member 25, and the connecting cylinder part 89 By tightening the fixing screw 93 and the fixing screw 131 of the fixed cylinder 129, the second pressing members 25, 25 are connected to both ends of each linear connecting rod 22 so as to protrude in the opposite direction in the vertical direction. ing. In addition, the connection state of this linear connecting rod 22 and each connection member 21 is the same as that shown in FIG. 24 and FIG.

  As a result, as shown in FIG. 51, after the screwed state of the adjusting screw shaft 70 of the first and second pressing members 23 and 25 is adjusted as necessary, the lock nut 71 is tightened to thereby adjust the screw nut 71 as shown in FIG. As shown in 49, the reinforcing frame 5 having a three-dimensional form and having a truss structure 125 disposed in the peripheral portion can be formed inside the water storage tank 2. Therefore, as shown in FIGS. 47 to 51, the upper and lower pressing contact portions 7, 7 are in a required stretch state between the top plate portion 9 and the bottom plate portion 10 of the water storage tank 2, and the radial direction (horizontal The opposing pressing contact portions 7 and 7 projecting in the direction) are stretched between the opposing side wall portions (presenting arc shapes) 11 and 11. With the required vertical and horizontal tensioning action, the aged underground buried water tank 2 can be effectively reinforced from the inside.

  53 to 57 show another embodiment of the reinforcing structure 1 that reinforces the cylindrical water storage tank 2, and a plurality of unit frame bodies 102 are juxtaposed in the vertical direction in the water storage tank 2 at a required interval. In addition, a reinforcing frame having a three-dimensional configuration in which the unit frames 102 arranged in parallel are connected by a linear connecting rod 22 in the vertical direction, and a truss structure portion 125 is disposed in the peripheral portion. 5 is provided. In the same manner as described above, the upper and lower pressing contact portions 7 and 7 are in a required tension state between the top plate portion 9 and the bottom plate portion 10 of the water storage tank 2 and are opposed to each other in the radial direction. First and second pressing members 23 and 25 having the same configuration as described above are provided on the reinforcing frame 5 so that the abutting portions 7 and 7 are stretched between the opposing side wall portions 11 and 11. . With the required vertical and horizontal tensioning action, the aged underground buried water tank 2 can be effectively reinforced from the inside.

  The present invention is by no means limited to those shown in the above-described embodiments, and it goes without saying that various design changes can be made within the scope of the claims. One example is as follows.

(1) FIGS. 58 to 59 show another configuration of the connecting member 21. In FIG. 58 (A), the connecting member 45 is formed with a square plate-like connecting plate 45, and in FIG. 59 (A) is a regular hexagonal plate. 59 (B), it is configured with a regular decagonal plate-shaped coupling plate 45, and FIG. 59 (C) is configured with a regular dodecagonal plate-shaped coupling plate 45. FIG. ) Is configured with a regular tetragonal plate-like connecting plate 45, and FIG. 59E is configured with a regular hexagonal plate-like connecting plate 45. In each of these connecting members 21, a circle is formed on a line 168 (shown by an alternate long and short dash line in FIG. 58A) connecting the center point 163 of each side 32 of the connecting plate 45 and the center 165 of the connecting plate 45. A concentric and circular connecting hole 50 is provided, and a connecting hole 51 for inserting the linear connecting rod 22 having the same structure as described above is provided in the central portion of the connecting plate 45.

  For example, as shown in FIGS. 58B, 58C, and 58D, the first connecting portion 20 of the linear bar-shaped support rod 3 is connected to each connecting hole 50 of the connecting member 21. The first connecting portion 20 is constituted by a U-shaped member 30, and as shown in FIGS. 58 (B) (C) (D), an insertion groove portion formed between the opposing gripping pieces 33, 33. In the state in which the edge portion 55 of the connecting plate 45 is inserted into 35, the flat regulating contact surface 53 formed by each side 32 is in contact with the flat groove bottom surface 56 of the insertion groove 35, In this state, the insertion holes 40 and 40 are in communication with the connection hole 50 concentrically so that a communication hole 57 is formed. As shown in FIG. 58 (C), the threaded shaft portion 60 of the bolt 59 is inserted into the communication hole 57 in the same manner as described above, and the nut 62 is screwed and tightened to tighten the first connecting portion 20. Is connected to the connecting member 21. In this connected state, as shown in FIGS. 58B, 58C, and 58D, the flat groove bottom surface 56 comes into contact with the flat regulating contact surface 53, so that the first connecting portion 20 is Without rotating about the axis of the bolt 59, the connection state of the linear bar-shaped support rod 3 with respect to the connection member 21 is uniquely determined, and the connection state is stably maintained.

  8, 59 (A), 59 (B), 59 (C), 59 (D), and 59 (E), the connecting member 21 is, for example, a cylindrical water storage shown in FIGS. 53 to 57. It can be used to construct the reinforcing structure 1 of the tank 2. The regular octagonal plate-like connecting member 21 shown in FIG. 8 is used in the reinforcing structure 1 shown in FIG. 48, and the regular hexagonal plate-like connecting member 21 shown in FIG. 59A is the reinforcing structure 1 shown in FIG. The regular decagonal plate-like connecting member 21 shown in FIG. 59B is used in the reinforcing structure 1 shown in FIG. Further, the regular dodecagonal plate-like connecting member 21 shown in FIG. 59C is used in the reinforcing structure 1 shown in FIG. 55, and the regular dodecagonal plate-like connecting member 21 shown in FIG. The regular hexagonal plate-like connecting member 21 shown in FIG. 59 (E) is used in the reinforcing structure 1 shown in FIG.

  The connecting member 21 shown in FIGS. 60 to 61 is configured by a circular plate-like connecting plate 45, and has four circular connecting holes 50 (FIG. 60 (A)) and six ( 61 (A)), 8 (FIG. 61 (B)), 10 (FIG. 61 (C)), 12 (FIG. 61 (D)), 14 (FIG. 61 (E)), 16 ( 61 (F)) is provided, and a connecting hole 51 for inserting the linear connecting rod 22 having the same structure as described above is provided in the central portion of the connecting plate 45. FIG. Also in this case, the first connecting portion 20 of the linear rod-like support rod 3 is connected in the same manner as shown in FIG. In this connection, as shown in FIGS. 60B, 60C, and 60D, the disk-shaped connecting plate 45 is inserted into the insertion groove portion 35 of the first connecting portion 20 having a U-shaped member 30. The restriction contact surface 53 having an arc shape is inserted into the groove bottom surface (presenting an arc shape) 56 of the insertion groove portion 35, and the insertion holes 40, 40 are connected to the connection hole. A communication hole 57 is formed as a communication state concentric with 50. In this state, the screw shaft portion 60 of the bolt 59 is inserted into the communication hole 57 in the same manner as described above, and the nut 62 is screwed and tightened to connect the first connecting portion 20 to the connecting member 21. . In this connected state, as shown in FIGS. 60B, 60C, and 60D, the arc-shaped groove bottom surface 56 comes into contact with the arc-shaped regulating contact surface 53, so that the first connecting portion 20 does not rotate around the axis of the bolt 59, the connection state of the linear bar-like support rod 3 with respect to the connection member 21 is uniquely determined, and the connection state is stably maintained.

(2) FIGS. 62 to 63 show another embodiment of the first connecting portion 20, and the connecting plate is attached to both holding pieces 33, 33 of the U-shaped member 30 configured in the same manner as described above. A plurality of insertion holes 40 are provided in alignment with the plurality of communication holes 50 provided in 45. As shown in FIGS. 62B, 62C, and 62D, the connecting plate 45, the plurality of connecting holes 50 provided in the first connecting portion 20, and the plurality of insertion holes 40 are formed to coincide with each other. When the bolt 59 is inserted into each of the communication holes 57 and the nut 62 is screwed, the groove bottom surface 56 of the insertion groove portion 35 and the restriction contact surface 53 come into contact with each other as shown in FIG. Even if not, the first connecting portion 20 of the straight bar-shaped support rod 3 can be connected to the connecting member 21 so as not to be relatively rotated. In addition, when connecting using a plurality of bolts 59 in this way, when a tensile load acts on the connecting portion in addition to a compressive load in the event of an earthquake, etc., it is also good against such a tensile load. I can resist.

(3) The connecting member 21 may employ various configurations that can connect the first connecting portion 20 of the linear rod-shaped support rod 3 and the linear connecting rod 22.
FIG. 64 shows another aspect of the connecting member 21, and a plurality of connecting protrusions 165 that can be inserted into the first connecting portion 20 having the cylindrical shape of the linear bar-like support rod 3 are formed on the substrate portion 166. Radially projecting. FIG. 64B shows a state in which the connection hole 50 provided through the connection protrusion 165 is aligned with the insertion holes 40 and 40 provided to face the cylindrical first connection part 20. As shown in FIG. 5, the first connecting portion 20 can be connected to the connecting member 21 by inserting the screw shaft portion 60 of the bolt 59 and tightening it with a nut 62. Further, a connecting hole 51 through which the linear connecting rod 22 can be inserted is provided in the central portion of the substrate portion 166. When connecting the connecting member 21 having such a configuration and the linear connecting rod 22 in this embodiment, as shown in FIG. 64 (C), screw shaft portions 167 and 167 are provided in the connecting hole 51 on both sides. The connecting shaft 169 provided is inserted. Then, with the central portion 170 of the connecting shaft 169 positioned in the connecting hole 51, the screw shaft portions 167 and 167 projecting on both sides of the substrate portion 166 are connected to the end portions of the linear connecting rod 22. As shown in FIG. 64 (C), the board portion 166 is held from both sides by the straight connecting rods 22 and 22 on both sides, by screwing and tightening the screw holes 171 provided on the peripheral surface. Thus, the connecting member 21 and the linear connecting rod 22 are connected.

  FIG. 65 shows another aspect of the connecting member 21, 90 degrees in the circumferential direction on the outer peripheral surface of the central portion in the extending direction of the central cylindrical portion 173 provided with the female screw portion 172 on the inner peripheral surface. Screw cylinders 176, 176, 176, and 176, which are provided with an internal thread portion 175 on the inner peripheral surface, are welded so as to project radially, and the radial screw cylinder portions 176, 176, and 176 , 176, by screwing a screw shaft portion 177 (first connecting portion 20) provided on the outer peripheral surface of the straight rod-like support rod 3 with an external thread portion. The straight bar-like support rod 3 can be connected to the connecting member 21. Then, as shown in FIG. 65 (B), by screwing the screw shaft portion 180 provided at the end portion of the linear connecting rod 22 into the screw tube portions 179 and 179 on both sides of the central tube portion 173. The connecting member 21 can be connected to the linear connecting rod 22.

  FIG. 66 shows another embodiment of the connecting member 21, a central screw shaft 195 provided with screw shaft portions 193 and 193 on both sides, a screw hole portion 196 provided on the inner side, and an outer end. It is provided with holding connecting cylinders 199 and 199 on both sides in which screw shaft portions 197 are provided in the portion. When the linear connecting rod 22 is connected to the connecting member 21 using the connecting member 21, the plate-like first connecting portions 20 of the plurality of linear rod-shaped supporting rods 3 are interposed with washers 200 therebetween. Arrange. Thereafter, the central screw shaft 195 is inserted into the insertion hole 40 provided in the first connecting portion 20 and the through hole 201 of the washer 200, and the screw shaft portions 193 and 193 on both sides of the central screw shaft 195 are inserted. Each is screwed into the screw hole portion 196 inside the holding connection cylinder 199, and the holding connection cylinders 199, 199 on both sides are tightened, whereby the holding connection cylinders 199, 199 and the plate-like first are formed. The plurality of connecting portions 20 and the plurality of washers 200 are integrated together. Thereafter, when the screw shaft portion 197 of the holding connecting cylinder 199 is screwed into and tightened to the screw cylinder portion 202 provided at the end portion of the linear connecting rod 22, the linear connecting rod 22 is connected to the connecting member 21. Can be linked.

  67, the connecting member 21 is configured to have a plurality of connecting protrusions 203 protruding from the peripheral surface portion of the linear connecting rod 22 by welding, and the connecting protrusions 203 are connected to the connecting holes 50. Is penetrated. Thus, for example, as shown in FIGS. 67 (B) and 67 (C), the connecting protrusion is inserted into the insertion groove 35 of the first connecting portion 20 having the U-shaped connecting member 30 provided at the end of the linear rod-like support rod 3. The connecting hole 50 and the insertion holes 40, 40 provided in the holding pieces 33, 33 of the U-shaped connecting member 30 are made to coincide with each other to form a communication hole 57, and the communication hole 57 is formed. The straight rod-shaped support rod 3 can be connected to the connecting member 21 by inserting the screw shaft portion 207 of the bolt 206 through 57 and screwing and tightening the nut 210 to the screw shaft end portion 209.

  FIG. 68 shows a case in which the connecting member 21 is configured to have the required portion 211 by penetrating the connecting hole 212 in the required portion 211 in the extending direction of the linear connecting rod 22. The opposing insertion holes 40, 40 of the first connecting part 20 with the U-shaped connecting member 30 provided at the end of the rod-like support rod 3 are aligned with the connecting hole 212 to form the communicating hole 213, By inserting the screw shaft portion 216 of the bolt 215 into the communication hole 213 and screwing and tightening the nut 219 to the screw shaft end portion 217, the straight rod-shaped support rod 3 is connected to the connecting member (the required portion of the linear connecting rod 22). 21 shows a case where connection is possible.

  FIG. 69 shows another embodiment of the connecting member 21, which includes holding pieces 221 and 222 configured to hold the required portion 220 in the extending direction of the linear connecting rod 22 from both sides. It is configured. The holding pieces 221 and 222 are formed by projecting clamping pieces 224 and 224 at both ends of the semicircular arc piece 223, and one holding piece 221 is fixed to the end of the linear bar-like support rod 3, The other holding piece 222 is configured as an independent member. However, as shown in FIGS. 69B and 69C, the required portion 220 of the linear connecting rod 22 is held by both the holding pieces 221 and 222, and tightened on both sides of the holding portion. The two holding pieces 221 are formed by bringing the pieces 224, 224 and the fastening pieces 224, 224 into contact with each other and fixing the fastening pieces 224, 224 in the contact state with bolts 225, 225 and nuts 226, respectively. , 222, the first connecting portion 20 of the linear bar-like support rod 3 can be connected to the connecting member 21 as a required portion of the linear connecting rod 22.

  FIG. 70 shows another aspect of the connecting member 21, which is concentrically fixed to the tip of the shaft portion 228 protruding from the outer peripheral surface 227 of the linear connecting rod 22, for example, in the shape of a disk. A contact connecting plate 229 is provided. Screw holes 231 are provided side by side at a required pitch in the circumferential direction at the peripheral portion 230 of the contact connecting plate 229. In addition, a disc-shaped abutting connection plate 232 having the same diameter is also fixed to the end of the straight bar-shaped support rod 3, and the peripheral portion 233 of the corresponding connection plate 232 is inserted at a required pitch in the circumferential direction. A hole 235 is provided in parallel. As shown in FIGS. 70B and 70C, the screw holes 231 and the insertion holes 235 are brought into contact with each other so that the contact connecting plates 229 and 232 are in contact with each other and fixed from the insertion hole 235 side. The abutting connecting plates 229 and 232 can be connected by inserting and tightening the screw 236 into the screw hole 231, whereby the first connecting portion 20 of the linear bar-like support rod 3 is connected to the connecting member 21. Can be linked to.

  FIG. 71 shows another embodiment in which the linear connecting rod 22 is connected to the connecting member 21 having, for example, a regular octagonal plate-like connecting plate 45, and is screwed into the fixed cylinders 129 and 129 shown in FIG. 24. In addition, the case where the fixing screw 131 is configured to be screwed into the screw hole 182 provided in the peripheral surface portion 189 of the linear connecting rod 22 by the tightening thereof is shown.

  FIG. 72 shows a case where a C-shaped fixing member 183 is used instead of the fixed cylinder 129. The C-shaped fixing member 183 is formed by projecting clamping pieces 186 and 187 at both ends of the C-shaped band portion 185 so as to face each other, and providing one through piece 186 with a through hole 189 and the other fastening piece. A screw hole 190 is provided in 187. However, as shown in FIGS. 72B and 72C, the linear connecting rod 22 is inserted into the connecting hole 51 of the connecting member 21 and is connected to each of the connecting rod portions 191 located on both sides of the connecting member 21. The C-shaped fixing members 183 and 183 are attached, and both the band portions 185 and 185 hold the connecting member 21. In this state, the fixing bolt 192 inserted through the through hole 189 is inserted into the screw hole 190. The linear connecting rod 22 can be connected to the connecting member 21 by screwing and tightening.

(4) FIG. 73 and FIG. 74 show a part of another aspect of the first pressing member 23 and the second pressing member 25, and one surface side of the pressing contact portion 7 having a disk shape. In the central portion of the inner peripheral surface, and a screw cylinder portion 239 provided with a female screw portion 237 is provided on the inner peripheral surface, and the end portion of the straight rod-like support rod 3 or the straight connecting rod 22 is provided. The screw shaft portion 240 can be screwed into the screw cylinder portion 239. Then, by rotating the screw cylinder portion 239 as required, the pressing contact portion 7 presses the lower surface 27 of the top plate portion 9, the upper surface 26 of the bottom plate portion 10, and the inner surface 29 of the side wall portion 11. It is made to press with pressure. This required pressing state can be locked by tightening a lock nut 71 as shown in FIG. Alternatively, as shown in FIG. 74, the engagement hole 241 provided in the screw cylinder portion 239 is aligned with the engagement groove 241 provided in the extension direction of the screw shaft portion 240, and then the engagement is performed. The knock pin 242 inserted through the hole 241 can be locked by driving into the engagement groove 241.

  In FIG. 75, the pressing contact portion 7 is formed in a disc shape, and a screw shaft portion 243 is projected from a central portion on one surface side thereof, and the screw shaft portion 243 is connected to the linear rod-shaped support rod 3 or After being able to be screwed into the screw cylinder portion 245 at the end portion of the linear connecting rod 22, the screw shaft portion 243 is screwed as required and the pressing force of the pressing contact portion 7 is set as required, By tightening the lock nut 71 screwed into the screw shaft portion 243, the pressing state of the pressing contact portion 7 can be locked.

(5) The first connecting portion 20 and the connecting member 21 of the linear rod-like support rod 3 are connected by using the bolts, as long as the connection can be reliably performed, a pin or the like It may be performed using a shaft-like material. Furthermore, it can also be by welding.

(6) FIG. 76 shows another aspect of the cross-sectional shape of the straight bar-like support rod 3 and the straight connecting rod 22, and FIG. 76 (A) shows a case where it is configured using H-shaped steel. 76 (B) shows a case of using L-shaped steel, FIG. 76 (C) shows a case of using C-shaped steel, and FIG. 76 (D) shows a case of using a square steel pipe. Show.

(7) The linear rod-shaped support rod 3, the connecting member 21, and the linear connecting rod 22 may be made of rust-proof steel, stainless steel, or ceramic.

(8) In the present invention, as described above, the upper and lower pressing contact portions 7, 7 provided above and below the reinforcing frame 5 are provided between the top plate portion 9 and the bottom plate portion 10 of the water tank 2. It is arranged in a stretched state, and the upper pressing contact portion 7 gives a pushing force to the top plate portion 9 and the lower pressing contact portion 7 gives a pushing force to the bottom plate portion 10. ing. In addition, the pressing contact portions 7 and 7 on both sides provided on both sides of the reinforcing frame 5 viewed in the horizontal direction are disposed in a stretched state between the opposing side wall portions 11 and 11 of the water tank 2, The pressing contact portion 7 applies a tension force to the side wall portion 11.

  Here, the upper and lower press contact portions 7 and 7 are disposed in a stretched state between the top plate portion 9 and the bottom plate portion 10 of the water storage tank 2. Although it is most preferable to correctly face the upper and lower sides, the position may be shifted as long as the load support by the upper and lower pressing contact portions 7 and 7 does not become unstable. Further, the pressing contact portions 7 and 7 on both sides provided on both sides viewed in the horizontal direction are disposed in a stretched state between the opposite side wall portions 11 and 11 of the water tank 2. Although it is most preferable that the abutting portions 7 and 7 face each other correctly when viewed in the horizontal direction, the positions may be displaced as long as the load support by the pressing abutting portions 7 and 7 on both sides does not become unstable.

(9) The arrangement state of the pressing contact portion 7 that abuts against the lower surface 27 of the top plate portion 9, the upper surface 26 of the bottom plate portion 10, and the inner side surface 29 of the side wall portion 11 of the water storage tank 2 and applies a tension force is It is appropriately set in consideration of the deterioration status of the target water storage tank, such as the density of reinforcing bars in each part of the tank 2 and the degree of deterioration of the concrete.

  For example, as shown in the upper and lower parts of FIG. 77, in the case shown in FIG. 3, a connecting member 21p is further arranged in the middle of the upper and lower transverse members 42a, 42b, 42a, 42b, and the first connecting member 21p is connected to the first member. By connecting the pressing member 23, there may be a state in which a longitudinal stretching member 103 is disposed between the top plate portion 9 and the bottom plate portion 10. In this case, as shown in FIG. 77, the connecting member 21p and the connecting member 21e immediately above the connecting member 21p may be connected by a vertical member 41c. For example, as shown on the left side of FIG. 77, the connecting member 21q is further arranged in the middle of the required vertical member 41b of the longitudinal stretching member 103, and the first pressing member 23 is connected to the connecting member 21q. By doing so, the left and right pressing contact portions 7, 7 may be disposed in a stretched state between the opposing side wall portions 11, 11 via a frame portion such as a rhombus-shaped frame portion 244. In this case, as shown in FIG. 77, the connecting member 21q and the connecting member 21e located on the right side thereof may be connected by a lateral member 42d.

(10) The water tank 2 to be reinforced by the present invention may be constructed by assembling precast concrete blocks.

DESCRIPTION OF SYMBOLS 1 Reinforcement structure 2 Water storage tank 3 Straight rod-shaped support rod 5 Reinforcement frame body 6 Inside 7 Press contact part 9 Top plate part 10 Bottom plate part 11 Side wall part 12 Work path 13 Upper part 15 Lower part 17 Manhole part 18 Water collecting pit 20 First connecting portion 21 Connecting member 22 Linear connecting rod 23 First pressing member 25 Second pressing member 26 Upper surface 27 Lower surface 29 Inner surface 30 U-shaped member 35 Inserting groove portion 40 Inserting hole 50 Connecting hole 51 Connecting hole 53 Regulation contact surface 56 Groove bottom surface 57 Communication hole 63 Cylindrical connecting member 65 Screw shaft pressing member 67 Second connecting portion 70 Adjustment screw shaft 88 Third connecting portion 99 Water intake portion 100 Side portion 101 End frame body 102 Unit Frame 103 Longitudinal strut member 110 Lateral strut member 126 Communication connecting hole 136 Waterproof coating 139 Protective material 147 Scaffolding member 150 Scaffolding

Claims (8)

A reinforcing structure for reinforcing the inside of a concrete water storage tank, and a reinforcing frame body having a three-dimensional form configured by connecting linear bar-shaped support rods having a straight bar shape is housed inside the water tank. The upper and lower pressing contact portions provided on the upper and lower sides of the reinforcing frame body are disposed in a stretched state via the reinforcing frame body between the top plate portion and the bottom plate portion of the water storage tank. The pressing contact portion applies a tensile force to the top plate portion and the lower pressing contact portion applies a tensile force to the bottom plate portion, and in the horizontal direction of the reinforcing frame body. The pressing contact portions on both sides provided on both sides as viewed are disposed in a stretched state between the opposing side wall portions of the water storage tank via the reinforcing frame, and the pressing contact portions are stretched against the side wall portions. Is made to give
The reinforcing frame is provided with a working path extending in the direction of extension of the water storage tank so that an operator can move, and the upper portion of the working path is provided with the linear bar-like support rod. The lower portion of the working path is configured to connect the linear bar-like support rods so as to form a projecting V-shape. Reinforcing structure of the water tank characterized by that. The reinforcing frame includes unit frames configured by connecting the linear rod-shaped support rods to each other through a connecting member, and arranged in parallel with a required interval in the extending direction of the water tank. The member is provided with a connecting hole through which a linear connecting rod extending in the extending direction can be inserted, and both upper ends of the V-shaped portion of the lower portion, which has a V-shape projecting downward, are connected to the connecting member. The connecting holes at both the upper ends provided in the connecting members that are connected to each other at the both upper ends are in a horizontal communication state with a common hole center when viewed in the extending direction. 2. The water storage tank according to claim 1 , wherein the linear connecting rods are horizontally inserted into the holes, and the two linear connecting rods can support both end portions of the scaffold member from below. Reinforcement structure. A reinforcing structure for reinforcing the inside of a concrete water storage tank, and a reinforcing frame body having a three-dimensional form configured by connecting linear bar-shaped support rods having a straight bar shape is housed inside the water tank. The upper and lower pressing contact portions provided on the upper and lower sides of the reinforcing frame body are disposed in a stretched state via the reinforcing frame body between the top plate portion and the bottom plate portion of the water storage tank. The pressing contact portion applies a tensile force to the top plate portion and the lower pressing contact portion applies a tensile force to the bottom plate portion, and in the horizontal direction of the reinforcing frame body. The pressing contact portions on both sides provided on both sides as viewed are disposed in a stretched state between the opposing side wall portions of the water storage tank via the reinforcing frame, and the pressing contact portions are stretched against the side wall portions. Is made to give
The reinforcing frame includes the linear bar-shaped support rods and a connecting member for connecting the linear bar-shaped support rods to each other. The connecting member includes a polygonal plate-shaped connecting plate, and an outer periphery of the connecting plate. The surface is provided with a flat regulating contact surface having a rectangular or square shape, and a concentric circular connection hole is provided on the line connecting the center of the connection plate and the center point of each side. And a first connecting portion having a U-shaped member is provided at an end of the linear bar-shaped support rod, and the U-shaped member is an insertion groove formed between the opposing gripping pieces. With the flat groove bottom surface in contact with the restriction contact surface, the insertion hole and the connection hole provided concentrically with each of the holding pieces are in communication with each other, and the communication hole is connected to the communication hole. The screw shaft portion of the bolt is inserted from one side of the both holding pieces and from the other holding piece. Reinforcing structure of reservoir, characterized in that that may be linked to the connecting member the first coupling portion by a nut on the threaded shaft portion out is tightened screwed. The said connection member exhibits regular octagonal plate shape, The reinforcement structure of the water tank of Claim 3 characterized by the above-mentioned. A reinforcing structure for reinforcing the inside of a concrete water storage tank, and a reinforcing frame body having a three-dimensional form configured by connecting linear bar-shaped support rods having a straight bar shape is housed inside the water tank. The upper and lower pressing contact portions provided on the upper and lower sides of the reinforcing frame body are disposed in a stretched state via the reinforcing frame body between the top plate portion and the bottom plate portion of the water storage tank. The pressing contact portion applies a tensile force to the top plate portion and the lower pressing contact portion applies a tensile force to the bottom plate portion, and in the horizontal direction of the reinforcing frame body. The pressing contact portions on both sides provided on both sides as viewed are disposed in a stretched state between the opposing side wall portions of the water storage tank via the reinforcing frame, and the pressing contact portions are stretched against the side wall portions. Is made to give
The structure for reinforcing a water storage tank , wherein the pressing contact portion provided in the reinforcing frame is provided at a tip portion of a pressing member whose length can be adjusted. 6. The structure for reinforcing a water storage tank according to claim 5, wherein the reinforcing frame body is provided with a work path extending in an extending direction of the water storage tank so that an operator can move. . A reinforcing structure for reinforcing the inside of a concrete water storage tank, and a reinforcing frame body having a three-dimensional form configured by connecting linear bar-shaped support rods having a straight bar shape is housed inside the water tank. The upper and lower pressing contact portions provided on the upper and lower sides of the reinforcing frame body are disposed in a stretched state via the reinforcing frame body between the top plate portion and the bottom plate portion of the water storage tank. The pressing contact portion applies a tensile force to the top plate portion and the lower pressing contact portion applies a tensile force to the bottom plate portion, and in the horizontal direction of the reinforcing frame body. The pressing contact portions on both sides provided on both sides as viewed are disposed in a stretched state between the opposing side wall portions of the water storage tank via the reinforcing frame, and the pressing contact portions are stretched against the side wall portions. Is made to give
A waterproof coating having elastic elasticity is formed on the entire inner surface of the side wall portion of the water storage tank and the upper surface of the bottom slab portion or a required portion, and the pressing contact portion covers the waterproof coating film. A structure for reinforcing a water storage tank , wherein the structure is in contact with a surface of a protective material.   A waterproof coating having elastic elasticity is formed on the entire inner surface of the side wall portion of the water storage tank and the upper surface of the bottom slab portion or a required portion, and the pressing contact portion covers the waterproof coating film. The structure for reinforcing a water storage tank according to any one of claims 1 to 6, wherein the structure is in contact with the surface of the protective material.

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