JP4149389B2 - How to install a dome roof - Google Patents

Description

  The present invention relates to a method for constructing a dome-shaped roof that can be suitably used for a relatively small dome-shaped roof, such as a water supply field and an agricultural water tank roof.

  Conventionally, a dome-shaped roof has been built on structures such as tanks and stadiums by framing skeletons such as building materials and beams at the opening of the dome, and then stretching the frame material to the dome. A method of forming a mold roof or a dome-shaped roof is assembled in advance at a location different from the structure to be installed, and the dome-shaped roof is transported onto the structure by, for example, lifting it up, near the upper edge of the structure For example, a method of forming a dome-shaped roof by connecting the edges thereof has been used.

  Also, for the purpose of safety and ease of construction, for example, a lifting column is established at the center of the tank bottom, and a mesh dome frame is assembled on the tank bottom around the lifting column. Is lifted to a predetermined height by a lifting column, the periphery of the top of the cylindrical tank side wall is connected to the mesh dome frame with a connecting material, the mesh dome frame is supported by the cylindrical tank side wall, and the lifting column is disassembled. A method of assembling the connecting member at the center after the removal is disclosed.

Japanese Examined Patent Publication No. 45-1779

  However, in the method in which the face material is stretched on the frame, the frame is erected by assembling the support work where necessary, and the support work dismantled after the face material is stretched is removed from a small vent or inspection port. Therefore, the labor related to the support work in the erection is complicated. In addition, the time required for erection on the structure becomes long, and the structure cannot be used during that time, and work at a high place is necessary, which causes safety problems.

  In addition, in the method of assembling the entire dome-shaped roof in advance, a very large device is required to lift the dome-shaped roof, and the dome-shaped roof itself needs to have a strength that can withstand the lifting. Further, in order to assemble a dome-shaped roof, a site having an area equal to or larger than that of the dome-shaped roof is required in the surrounding area, and this method cannot be applied to a place where the site cannot be obtained.

  Moreover, in the method as described in Patent Document 1, a separate site is not required, but it is necessary to assemble a mesh dome frame at the bottom of the cylindrical tank, and the building cannot be used for a period until the mesh dome frame is completed. Moreover, it was necessary to carry out from the narrow doorway to dismantle and remove the lifting column.

  The present invention has been made in view of the above problems, and a dome-shaped roof that can be formed safely and easily and quickly, and requires a separately required site area smaller than the dome-shaped roof. We are going to provide a method of erection.

In order to solve the above problems, the present invention has the following configuration. That is, a dome-shaped roof laying method that covers an opening in the upper part of a cylindrical structure that has been constructed in advance, and a fan-shaped body divided radially into 5 to 8 bodies from the center of the dome-shaped roof. Forming in advance while supporting by an assembly jig from below, forming the dome by laying the divisions sequentially on the opening in the upper part of the structure while supporting by a support provided immediately below the center of the dome-shaped roof, The assembly jig includes a both-end holding portion that holds the frame of the split body at the fan-shaped tip and peripheral portions, and a plate holding portion that holds the connection plate at a predetermined height along the curvature of the inner surface of the split body. The frame is formed by attaching an angle material between the connection plates while holding the connection plate, and the frame is held by the plate holding part and the both end holding parts. It is characterized in that it was made such that the partial bodies are formed by tensioning a faceplate.

  The plate holding portion has a fixed pin projecting from the upper end, and the fixed pin is detachably inserted into a pin hole formed in the connection plate to hold the connection plate. It is characterized by.

  According to the dome-type roof erection method according to the present invention as set forth in claim 1, a division for forming the dome-type roof is formed in advance while supporting from below using an assembly jig, and the formed divisions are sequentially formed. By erection, it is possible to form a dome-shaped roof that is safer, easier and faster than that formed at the top of the structure. Further, the division is 1/5 to 1/8 of the dome-shaped roof, and the separately required area is much smaller than that of the entire dome-shaped roof. Furthermore, since the dome-shaped roof is divided into equal parts, it is possible to assemble all the halves with an integral assembly jig.

In addition to the above-described effects, the connection plate is formed by the plate holding portion, and the frame is formed by the connection plate and the angle member in a state where the distal end portion and the peripheral portion of the frame that is fan-shaped at the both end holding portions are held at positions along the inner surface of the split body. By forming, it becomes very easy to align the connection plate and the angle member, it is possible to easily assemble a structure of a three-dimensional curved surface, which is usually extremely difficult, and in a stable state, Ru can be performed attachment of angle members and the surface plates.

According to the invention of claim 2, the connecting plate can be prevented from being displaced from a predetermined position by a simple structure, and when the assembly of the split body is completed, the pin is detachably inserted. It is preferable that the pin can be easily removed from the pin hole by moving the body upward.

BEST MODE FOR CARRYING OUT THE INVENTION The best embodiment according to the present invention will be specifically described below with reference to the drawings.
FIG. 1 is an explanatory view showing an example of an assembly jig used in the dome-type roof erection method according to the present invention. In the assembly jig J, an outer frame J1 made of H-shaped steel is assembled in a fan shape, and three middle horizontal frames J2 made of H-shaped steel are passed between outer frames J1 on both side edges. It is attached. Both ends holding portions J3 and J4 are provided at the front end and the peripheral portion of the fan-shaped outer frame J1, respectively, and connection plates in a split forming a dome-shaped roof are formed on the upper surfaces of the outer frame J1 and the middle horizontal frame J2. A plate holding portion J5 is projected from each position.

  2 to 4 show an example of formation of a split body constituting a dome-shaped roof using the assembly jig J. First, the lower connection plate 14A is provided at the upper end of each protruding plate holding portion J5. Is retained. Between the lower connection plate 14A, the angle member 12 having a required size is passed and fixed to the lower connection plate 14A by bolting or the like.

  Here, as shown in FIG. 3, a top end plate J51 is attached to the top end of the plate holding portion J5, and a pin J6 for holding the lower connection plate 14A is projected upward from the top end plate J51. . The pin hole 14A1 drilled in the lower connection plate 14A is inserted into the pin J6 from above, so that the lower connection plate 14A is detachably held upward by the pin J6. The top plate J51 not only facilitates the attachment of the pin J6, but also works to reduce the fluctuation of the lower connection plate 14A, and the attachment to the tip of the plate holding portion J5 is at an angle that matches the curvature of the body. It is preferable to attach it. A bolt hole 14A2 for bolting the angle member 12 is formed in the vicinity of the peripheral edge of the lower connection plate 14A in each of the attachment directions of the angle member.

  Further, the tip portion of the plate holding portion J5 may have a shape as shown in FIG. The plate holding portion J5 is formed by using a round pipe, and the upper end thereof is closed to form a hemispherical upper surface J52. An integral pin J6 is attached to the top of the hemispherical upper surface J52, and the pin J6 is inserted into the pin hole 14A1 formed in the lower connection plate 14A, so that the position of the lower connection plate 14A is temporarily fixed. . The lower connection plate 14A is temporarily fixed on the hemispherical upper surface J52, so that the angle can be changed around the pin J6 until the main fixing is performed. Convenience can be achieved.

  In this manner, the angle members 12 are sequentially attached between the lower connection plates 14A, and when all the angle members 12 to be attached are attached, the upper connection plates 14B are further connected to the lower connection plates 14A as shown in FIG. Is attached to the angle member 12 to form a framework 15. The upper connection plate 14B may also be provided with a pin hole similarly to the lower connection plate 14A and detachably inserted into the pin J6. The frame 15 is configured such that the fan-shaped front end and peripheral edge receive the frame 15 vertically by the plate-shaped both ends holding portions J3 and J4, respectively. Since it is supported from below by the plate holding portion J5, an extremely stable state is maintained on the assembly jig J. The face plate 13 is attached to the upper connection plate 14B or the angle member 12 by bolting or the like and sequentially stretched with respect to the finally formed frame 15, and the gap between the face plates 13 is closed with a caulking material or the like. Formation is complete.

  By forming a dome-shaped roof that forms a dome-shaped roof by such a method, a dome-shaped roof can be constructed in a stable place on the ground or the like, and the dome-shaped roof can be installed safely by being able to erection the division sequentially. Although it is easy and quick, the dome-shaped roof that forms a part of the sphere is composed of a three-dimensional curve, and the division is divided to form the alignment for each member. Although it is extremely difficult to perform, it can be easily aligned by the both end holding portions J3 and J4 and the plate holding portion J5. It may be possible to form reliably.

  The angle member 12 and the connection plates 14A and 14B are not particularly limited in the material used to form them, but are preferably formed using a metal that is relatively light and provides high strength, such as steel, stainless steel, and aluminum. Extruded mold materials such as H-shaped materials, tubular bodies, etc. may be used, but as described above, they are used in places where there is a high risk of being corroded by chlorine, using aluminum that is resistant to corrosion and can reduce the weight of the roof itself. Preferably formed.

  Further, the face material 13 is not particularly limited to the material used for the formation, and a resin plate, a metal plate or the like may be used. However, it is preferable to use aluminum which is resistant to corrosion, and in particular, an aluminum foil is pasted. The attached metal resin laminated composite plate can be suitably used because of its high strength and light weight. The metal-resin laminated composite plate is lightweight while having bending strength and flexural modulus close to that of metal, and the dome-shaped roof can be made lightweight without significantly reducing the strength of the face material. The load on the connection with the structure can be reduced.

  The segment formed by the above-described method is constructed as a dome-shaped roof as shown in FIG. A support structure 2 is provided inside the cylindrical structure 20, and the split body 1 is installed while being supported by the support structure 2. Each of the split bodies 1 constitutes 1/6 of the dome-shaped roof, and the split bodies 1a to 1f are installed to form a dome-shaped roof. This figure is an explanatory view showing a state in which the divisions 1a to 1c are assembled and installed using an assembly jig J provided on the ground, and then the division 1d is installed. 4), the fourth body 1d formed by using the assembly jig J is lifted by the crane K, but the connection plate 14 is detachably attached to the plate holding portion J5, so that The moving body 1d is lifted by the crane K only by moving it. The suspended body 1d is transported above the structure 20 as shown in (b), and is supported by the support 2 while being cylindrical using the connecting portion 3 and the adjacent body 1c, bolts, nuts, connecting members, and the like. The structure 20 is firmly fixed near the upper edge.

  Further, the assembly 1 J is formed using the assembly jig J, lifted by the crane K, and fixed to the vicinity of the upper edge of the cylindrical structure 20 until the assembly 1 f is repeated, and the dome-shaped roof is constructed. The The area required to form the split body 1 is about 1/6 of the dome-shaped roof, and it can be constructed even when there is no wide assembly site around it. In such a case, the dome-shaped roof can be installed without requiring an assembly site.

It is explanatory drawing which shows an example of the assembly jig used for the construction method of the dome shape roof concerning this invention. It is explanatory drawing which shows an example of formation of the split body in the construction method of the dome shape roof concerning this invention. It is explanatory drawing which shows an example of the front-end | tip part of a plate holding | maintenance part. It is explanatory drawing which shows the other example of the front-end | tip part of a plate holding | maintenance part. It is explanatory drawing which shows an example of formation of the split body in the construction method of the dome shape roof concerning this invention. It is explanatory drawing which shows one Embodiment of the construction method of the dome shape roof concerning this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Split body 12 Angle material 13 Face plate 14A, 14B Connection plate 14A1 Pin hole 15 Frame 2 Supporting work 3 Connection part 10 Dome-shaped roof 20 Cylindrical structure J Assembly jig J3, J4 Both ends holding part J5 Plate holding part J6 Pin

Claims (2)

A construction method of a dome-shaped roof that covers an opening in the upper part of a cylindrical structure that has been built in advance. A fan-shaped body that is radially divided into 5 to 8 bodies from the center of the dome-shaped roof from below. preformed while being supported by the assembly jig, with sequentially the divided body while supporting the shoring provided directly below the center of the domed roof to suspend and tension the opening of the structure top to form a dome, the assembly The jig includes both end holding portions that hold the frame of the split body at the fan-shaped tip and peripheral portions, and a plate holding portion that holds the connection plate at a predetermined height along the curvature of the inner surface of the split body. The frame is formed by attaching an angle member between the connection plates while holding the connection plate, and the face plate is stretched with the frame held by the plate holding part and the both end holding parts. Erection method domed roof, characterized in that has been made such that the partial bodies are formed by. The plate holding part has a fixing pin protruding from the upper end, and the fixing pin is detachably inserted into a pin hole formed in the connection plate so that the connection plate is held. The method for constructing a dome-shaped roof according to claim 1 , wherein

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