JP5134305B2 - Supporting device for column, its mounting structure and mounting method - Google Patents

Description

  The present invention relates to a support device for a column that supports a column of a non-structural member such as a handrail of a fence installed on the roof floor of a structure, and a mounting structure and a mounting method for mounting this holding device on a structure.

  For example, when a column supporting a handrail installed on the rooftop of a structure is erected on a structure such as a slab, the structure is such that the legs of the column have sufficient resistance to the horizontal force acting on the rail. To be established. A typical fixing example of the column is shown in FIGS.

  4- (a) to (c) show the concrete of the structure placed in the state where the base (foundation) made of precast concrete with the inside hollowed is placed around the legs of the column. It is a method of exposing the foundation from. 5 (a) and 5 (b), after the construction of the structure, the support is fixed to the top of the structure using metal fittings and bolts, and the legs of the support are constrained by the root-wrapped concrete as the foundation (foundation). Is the method.

  In any method, since the restraining effect on the leg of the column is determined by the height of the base (foundation), that is, the depth of the leg embedded in the structure (fixing length), the above-mentioned resistance force is applied to the column leg. From the relationship, it is necessary to ensure a certain depth of embedding. As a result, as shown in FIG. 6- (b), the base (foundation) protrudes from the top of the structure (see Patent Documents 1 and 2), which reduces the appearance of the entire fence including the handrail. Yes.

  On the other hand, if the anchor such as a base plate is joined to the lower end of the pillar or the core material inserted into the pillar, and the leg portion of the pillar is embedded in the structure together with the anchor, the protrusion of the base is made. It is possible to avoid it (see Patent Document 3).

  However, since the legs of the support are embedded in the structure (frame), the installation target is limited to a case where there is a margin in the thickness (depth) of the structure. In addition, since the lower end of the column is welded to the anchor, when the column needs to be replaced, it is not possible to collect only the column. In this case, since the region including the anchor is collected, damage to the structure is increased.

  According to the method shown in FIG. 4, since the pillar is fixed by the grout filled in the inner peripheral portion of the base, an area of damage to the structure is obtained by making a cut using a core drill or the like in the inner peripheral portion of the base. It is possible to retrieve the strut while keeping the minimum.

JP 11-081604 A (Claim 1, paragraphs 0008 to 0013, FIG. 1) JP-A-11-093365 (Claim 1, paragraphs 0008 to 0016, FIGS. 1 and 2) JP-A-6-280365 (Claim 1, paragraphs 0013 to 0021, FIGS. 1 and 2)

  However, according to the method shown in FIGS. 4 and 5, as shown in FIG. 6- (b), as a result of the base projecting from the top end of the structure, the lower frame constructed between the lower ends of the adjacent columns. Is located above the top of the structure, and a space is created between adjacent bases. Therefore, a dive stop (bottom beam) must be installed between the columns to close the space in terms of safety. I must. The installation of the dive stopper increases the number of fence parts supported by the support column, which has the disadvantage of increasing the number of fence assembly operations.

  In view of the above background, the present invention proposes a support device for a support that does not protrude from the top end of the structure while fixing the support to the structure so as to be resistant to horizontal force, and a mounting structure and a mounting method thereof. It is.

The support device for a support of the invention according to claim 1 has a bottom plate, a support member having a receiving member embedded in a structure, and a hollow holding member fixed to the bottom plate of the receiving member; A core member that is inserted and fixed in the holding member of the support member, holds the hollow column from the inner periphery, and is fixed in a state of being in contact with the bottom plate of the receiving member at the lower end ,
The core material is composed of a lower core material inserted into the holding member, and an upper core material that is longer than the lower core material and is integrated with the lower core material while surrounding the lower core material,
The full length of the support column is an upper section where the core material does not overlap, an intermediate section where the upper core material overlaps to form a double structure, and the upper core material and the lower core material overlap to form a triple structure. It is a constituent requirement to be divided into lower sections .

  The entire receiving member and at least a part of the holding member are embedded in the structure, and the structural material such as concrete and mortar constituting the structure spreads on each surface of the receiving member and adheres to the receiving member. The receiving member is completely embedded in the structure, thereby being fixed in the structure and functioning as an anchor. The structural material also adheres to at least the outer peripheral surface of the holding member.

  A hollow holding member is fixed to the bottom plate of the receiving member, and the core material is inserted and fixed inside the holding member so that the lower end of the core material can contact (contact) the bottom plate of the receiving member. And fixed to the holding member. The holding member is fixed to the bottom plate of the receiving member such that the material axis faces the material axis direction of the support column such as the vertical direction. “Can contact” means that the core may be fixed without being perpendicular to the upper surface of the bottom plate, for example, the axis of the core is inclined with respect to the vertical direction by angle adjustment or the like.

  Both ends of the holding member in the axial direction are open, and the space on the bottom plate of the receiving member communicates with the inside of the holding member. At least the fixing range of the holding member above the bottom plate of the receiving member is opened for fixing the holding member and for the structural material to wrap around the bottom plate. As long as the holding member is fixed on the bottom plate and a fluid structural material can enter, the peripheral portion of the holding member on the bottom plate may be closed.

  When the structure has a thickness in which the entire supporting member including the receiving member and the holding member is completely embedded, the core material is in a state where the lower end of the core material can contact the bottom plate of the receiving member, It is fixed in the holding member with a fixing length equivalent to the thickness of the structure. If the level of the lower end of the structure and the level of the lower end of the receiving member (bottom plate) are the same, the core material is obtained by securing the fixing length by subtracting the thickness of the bottom plate from the thickness of the structure.

The lower end of the core material may float from the bottom plate of the receiving member for level adjustment, angle adjustment, etc., but the lower end of the core material is in contact (contact) with the bottom plate of the receiving member. Maximum when the core is fixed in the state.

  By fixing the core material in the holding member with a fixing length equivalent to the thickness of the structure, only by the adhesive force with the filler such as mortar and adhesive (resin) filled in the holding member However, the fixing portion of the core material can have a sufficient resistance against the horizontal load acting on the handrail.

  Since the core material is fixed to the holding member only by the filler, it is not necessary to protrude the holding member for fixing the core material from the top end (upper end) of the structure. As a result, it is possible to fix the core material while keeping the top end of the structure flat, thereby avoiding the problem of deterioration in the appearance of the fence including the column and the handrail. Since there is no protrusion of the base from the top of the structure, there is no need to install a dive stop and the number of parts does not increase.

  When fixing of the core material is completed in the holding member by filling the filler, the core material is fixed to the support member (receiving member) using a fastening means such as a bolt in order to fix the core material to the structure. There is no need. It is not necessary to fix the core material to the support member, and the holding member has a hollow shape, so that it is necessary to replace the handrail and the entire support column that supports it by the arrival of the handrail's useful life. With the member embedded in the structure, the core material can be separated from the structure and recovered together with the support.

  Since the core material is fixed to the holding member by the filler filled in the hollow holding member, for example, the core material is recovered by cutting the portion of the core material that protrudes from the filler material above the holding member. Then, a core drill or the like is inserted into the filler, and the base portion of the core is separated from the surrounding filler, and is extracted from the holding member.

  For example, when the lower end of the core material is fixed with bolts as shown in FIG. 5, in order to recover the core material, it is necessary to make an incision with a core drill in the region including the bolts, resulting in significant damage to the structure. Become. On the other hand, since a bolt is not used in claim 1, it is only necessary to form a hole having a diameter surrounding the core material when the core material is recovered, minimizing the diameter of the hole and minimizing damage to the structure. be able to.

When filling the inside of the holding member with the filler, the bottom of the receiving member is formed on the bottom plate of the receiving member as described in claim 2 in order to ensure that the filler is filled densely without generating a cavity inside the holding member. An exhaust hole is formed. Since the hollow holding member is installed on the bottom plate of the receiving member that is open at the top, the space under the bottom plate of the receiving member and the space inside the holding member communicate with each other due to the formation of exhaust holes. When the air is filled, the air inside the holding member escapes from the exhaust hole under the receiving member, and the generation of a cavity is avoided.

  The exhaust holes formed in the bottom plate of the receiving member are also used for adjusting and positioning the arrangement position in the structure when the support member is installed. For example, by marking a mark under the structure, for example, the support member can be accurately positioned with respect to the structure only by aligning the center of the exhaust hole with the mark. is there.

  In the method shown in FIG. 4, the center of the PC concrete is aligned with the mark on the installation surface. However, since the opening of the PC concrete is larger than the cross section of the column, it is difficult to obtain the accuracy when the alignment is performed by visual measurement. On the other hand, when a hole is formed in the bottom plate of the receiving member, the shape, size, and number of holes can be freely set, for example, by reducing the size of the hole. By aligning the center of the hole located in the center with the mark on the installation surface, positioning with high accuracy can be performed.

  When the core is a single continuous bar, the core needs to resist the maximum bending moment that is generated in the leg due to the horizontal force that is applied to the handrail (headwood) and tries to overturn the column. If the cross-section of the core material is constant over the entire length, the bending stress generated in the cross-section of each part of the core material will be maximum at the leg, so the section above the leg that resists the maximum bending moment will have a bending moment. On the other hand, it has a surplus force and a bending strength more than necessary.

On the other hand, in claim 1, the core material is composed of a lower core material inserted into the holding member and an upper core material that is longer than the lower core material and is integrated with the lower core material while surrounding the lower core material. is, that the core is divided into two, it is possible to manufacture the strut and the core member at a reasonable size. The upper core material substantially surrounds the lower core material over its entire length.

In claim 1 , although the upper section of the entire support column including the core material has a single structure of only the support column, the lower intermediate section has a double structure in which the upper core material and the support structure overlap, The section has a triple structure in which the lower core material, the upper core material, and the support are overlapped. That is, the entire support including the core member has a structure in which the number of members gradually increases from the upper section to the lower section.

  In this case, only the column resists the bending moment in the upper section of the column, but the column and the upper core member resist in the middle section, and the column, the upper core member, and the lower core member resist in the lower section. In the middle section, the strength of the upper core is added to the strength of the support, and in the lower section, the strength of the lower core is added to the strength of the support and the upper core. As a result, the column main body excluding the core material only needs to have a strength sufficient to resist the bending moment of the upper section, and the column can be manufactured with a reasonable cross-sectional dimension.

  Since the lower core material and the upper core material only need to be able to resist the bending moment acting on the lower section and the middle section, respectively, the sectional performance corresponding to the bending moment that each lower core material and upper core material should bear Therefore, it is possible to manufacture the entire core material with reasonable dimensions.

  In order to resist the bending moment of the entire strut including the core material, it is sufficient that both are connected so that the bending moment generated in the strut is transmitted to the core material or the upper core material when divided into two. Since the lower end portion of the material only needs to be fixed to the holding member, the lower end of the column does not necessarily have to be fixed to the support member (holding member).

The support device for a column according to claim 1 or 2 , wherein at least the receiving member of the support member is embedded in the structure as described in claim 3 , and the core member is inserted into the holding member. The holding member is filled with the filler and the core material is fixed, so that the holding member is fixed. As described above, it is sufficient that at least the core material is fixed in the holding member. However, in order to obtain the stability of the lower end of the support column, the support member is inserted into the holding member together with the core material. It may be fixed to the holding member.

The fixing of the supporting device for the column to the structure is mainly performed by the method according to claim 4 . According to a fourth aspect of the present invention, a support member having a receiving member having a bottom plate and a hollow holding member fixed to the bottom plate of the receiving member is installed at a construction position of the structure on which the support column is erected. And a step of constructing the structure in a state in which the upper end of the holding member is closed, and the blocking of the holding member is released, and a hollow column is held from the inner periphery in the holding member, and the lower end And inserting a core material to be fixed in contact with the bottom plate of the receiving member and filling the holding member with a filler to fix the core material.
The core material is composed of a lower core material inserted into the holding member and an upper core material that is longer than the lower core material and is integrated with the lower core material while surrounding the lower core material. Is an upper section where the core material does not overlap, an intermediate section where the upper core material overlaps and has a double structure, and a lower section where the upper core material and the lower core material overlap and has a triple structure, It is divided into .

  As described above, when the core member is inserted into the holding member, the lower end portion of the support column may also be inserted into the holding member. In this case, the core member and the support column are fixed in the holding member. The core material can be positioned or angle-adjusted with respect to the holding member within a clearance range between the core material and the inner peripheral surface of the holding member before filling with the filler.

  During construction of the structure, the upper end of the holding member is kept closed in order to prevent a structural material such as concrete or mortar constituting the structure from entering the holding member. The upper end of the holding member is closed by inserting a closing member inscribed in the holding member. After the construction of the structure is completed by placing and filling the structural material, the closing of the holding member is released by collecting the closing member, and the core material is inserted into the holding member and the filling material is filled.

  The core material is inserted into the inside of the hollow holding member fixed to the bottom plate of the receiving member, and the core material is fixed to the holding member in a state where the lower end can be in contact with the bottom plate of the receiving member. The core material can be fixed in the holding member with a fixing length of a certain degree. For this reason, a core material can be fixed so that it can resist the horizontal force which acts on a support | pillar only by the adhesive force with the filler with which it fills in a holding member.

  As a result, the holding member for fixing the core member does not need to protrude from the top end (upper end) of the structure, and the top end of the structure can be flattened. .

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.

  1- (a) has a bottom plate 3a, a support member 2 having a receiving member 3 embedded in the structure 7, and a hollow holding member 4 fixed to the bottom plate 3a of the receiving member 3, An example of installation of a supporting device for a column (hereinafter referred to as a holding device) 1 including a core member 5 that is inserted and fixed in the holding member 4 of the support member 2 and is fixed from the inner periphery is shown. .

  In the drawing, since the holding device 1 is installed on the roof floor, the structure 7 is constructed on the waterproof layer 9 and the heat insulating layer 10 that are sequentially laid on the base material 8. However, the installation target of the holding device 1 is not limited. In the case shown in the drawing, the frame concrete is the base material 8 and the presser concrete is the structure 7, and the support member 2 is disposed on the heat insulating layer 10 positioned immediately below the structure 7.

  The structure 7 is mainly constructed of a reinforced concrete structure, but may be composed of mortar, steel, etc., or a combination thereof, in addition to an unreinforced concrete structure, a steel reinforced concrete structure, and a concrete block structure. When the structure 7 is made of, for example, precast concrete, the structure 7 is manufactured in a factory with the support member 2 embedded therein.

  The receiving member 3 has a bottom plate 3a on which the holding member 4 is placed. The receiving member 3 has a shape in which the upper portion of the bottom plate 3a is opened so that a structural material 71 having fluidity such as concrete and mortar constituting the structure 7 can enter. In the drawing, a grooved steel is used for the receiving member 3, and the receiving member 3 is formed in a shape having side plates 3b on both sides of the bottom plate 3a. However, the shape and material of the receiving member 3 are not limited, and the side plate 3b has two directions. It may have a shape opposite to. In the case of channel steel, the upper portion of the bottom plate 3a is completely opened, but the upper portion of the joint portion with the holding member 4 only needs to be opened, so that the receiving member 3 has a shape in which the portion around the holding member 4 is closed. Sometimes

  Since the side plate 3b is formed mainly to obtain adhesion between the structural member 71 having fluidity, the side plate 3b may not be formed when adhesion is not expected. The receiving member 3 may be made of a material that does not easily lift when the structural member 71 is placed or filled, including a steel material such as a shape steel.

  In the holding member 4 or the receiving member 3 when the filling material 11 filled in the holding member 4 is filled in the center of the region on which the holding member 4 is placed, for example, the center of the bottom plate 3a of the receiving member 3 One or a plurality of exhaust holes 3c for discharging the air to the outside of the support member 2 is formed. As shown in the drawing, when the heat insulating layer 10 exists under the support member 2, the air in the holding member 4 escapes to the heat insulating layer 10 as the structural material 71 is placed.

  The exhaust hole 3 c is also used for positioning the support member 2 with respect to the base material 8 or the heat insulating material 10. In that case, the base material 8 or the heat insulation layer 10 is marked for alignment. When the exhaust hole 3c is also used for positioning, the exhaust hole 3c is formed in the center of the region where the holding member 4 is placed. In the case of a single exhaust hole 3c, the center of the exhaust hole 3c coincides with the center of the bottom plate 3a. In the case of a plurality of exhaust holes 3c, the exhaust hole 3c located at the center of the plurality of exhaust holes 3c is formed. The center is formed so as to coincide with the center of the bottom plate 3a.

  The holding member 4 has a hollow cross-sectional shape in which both ends in the axial direction are open, and when the holding member 4 is fixed on the bottom plate 3 a of the receiving member 3, the entire length remains within the thickness (depth) range of the structure 7. Have. In the drawing, a square steel pipe is used for the holding member 4, but the cross-sectional shape of the holding member 4 is determined according to the cross-sectional shape of the core material 5 and may have a circular or polygonal cross-section.

  The material of the holding member 4 is not limited, but the same material as that of the receiving member 3 is appropriate because it is fixed to the receiving member 3. In principle, the lower end of the holding member 4 is fixed to the bottom plate 3a with the axis of the holding member 4 facing in a direction perpendicular to the upper surface of the bottom plate 3a. In the drawing, the holding member 4 is fixed to the receiving member 3 by welding. The receiving member 3 and the holding member 4 are installed in the structure 7 so as to be integrated with each other as the support member 2.

  The structural member 71 is thick enough that the support member 2 is completely or almost completely embedded in order to fix the support member 2 to the structure 7, and the upper end of the holding member 4 cannot be seen from the surface side of the structure 7. Is placed (filled). Placing the structural member 71 so that the support member 2 including the holding member 4 is completely embedded in the structure 7 is because the upper end of the holding member 4 is exposed on the surface of the structure 7. It is meaningful to prevent rainwater from entering the interior and causing the structure 7 to crack.

  At the time of placing (filling) the structural member 71, the blocking member 12 is temporarily inserted into the holding member 4 in order to prevent the structural member 71 from entering the holding member 4. The closing member 12 is inserted so that the upper end protrudes upward from the upper end of the holding member 4 as shown in FIG. 2D, and the closing member 12 protrudes from the holding member 4, as shown in FIG. In addition, the structure 7 is constructed to a level higher than the upper end of the holding member 4, and the exposure of the holding member 4 is avoided.

  After the placement (filling) of the structural material 71, the closing member 12 is recovered when the structural material 71 is cured, and the core material 5 is inserted into the holding member 4. When the core member 5 is inserted into the holding member 4 and the height or angle of the core member 5 is adjusted, a height (angle) adjusting member is interposed on the bottom plate 3a of the receiving member 3. However, in order to secure the maximum fixing length in the holding member 4, the core material 5 is fixed in a state where the lower end thereof is in contact (contact) with the bottom plate 3 a of the receiving member 3.

  As shown in FIG. 2B, the core member 5 is integrated with the lower core member 51 whose lower end is inserted into the holding member 4 and the lower core member 51 while enclosing the lower core member 51 over almost the entire length. It is comprised from the hollow upper core material 52 which turns into. 2B shows a state in which the lower core member 51 is inserted into the upper core member 52 to form the core member 5, and FIG. 2C shows a single lower core member 51. FIG. 1- (b), (c), and (d) show cross sections of the support column 6, the upper core member 52, and the lower core member 51, respectively.

  The upper core member 52 is longer than the lower core member 51 and projects from the upper end of the lower core member 51 toward the upper end of the support column 4. In the drawing, the lower end of the lower core member 51 and the lower end of the upper core member 52 are aligned in order to ensure the strength against the bending moment at the lower end portion of the core member 5, but this is not always necessary, either of which may protrude. is there. When the lower end of the lower core member 51 and the lower end of the upper core member 52 are aligned, the entire length of the lower core member 51 is surrounded by the upper core member 52.

  Since the core material 5 formed by integrating the lower core material 51 with the upper core material 52 serves to reinforce the lower section from the middle part of the entire length of the support 6, as shown in FIG. Is inserted into the lower section from the middle part of the column 6. The total length of the support 6 is divided into an upper section where the core 5 does not overlap, an intermediate section where the upper core 52 overlaps the support 6, and a lower section where the support 6, the upper core 52 and the lower core 51 overlap. The FIG. 2A shows a state in which the support 6 into which the core material 5 is inserted is inserted into the holding member 4.

  In the drawing, the lower end of the support column 6 is positioned above the lower end of the core material 5 so that the height and angle of the support column 6 can be adjusted with respect to the core material 5 when the support column 6 is installed. Although an interval (play) is ensured between the lower end of 6 and the bottom plate 3a of the receiving member 3, the lower end of the column 6 may contact the bottom plate 3a without ensuring this interval.

  In the drawing, a flat bar having a solid cross section is used for the lower core material 51, and an aluminum extruded mold material is used for the upper core material 52 surrounding the lower core material 51. However, each material and shape are arbitrary. . The lower core member 51 is inserted into the upper core member 52 over almost the entire length, and is wobbled by, for example, an adhesive such as epoxy resin or a filler 53 such as mortar filled in the gap between the upper core member 52. It is integrated with the upper core member 52 so as not to occur.

  Any material that does not shrink and shrink, such as non-shrink mortar, can be used for the filler 53, but from the aspect of compatibility (adhesion) when an aluminum alloy molded product is used for the upper core material 52, epoxy resin is used. Use is preferred. As shown, when the lower end of the upper core member 52 is aligned with the lower end of the lower core member 51 and both are inserted into the holding member 4, the filler 11 for fixing the core member 5 to the holding member 4 is the upper portion. Since it adheres to the core material 52, it is suitable to use an epoxy resin for the filler 11.

  The filler 53 is filled with the lower end of the upper core member 52 facing upward. In order to prevent leakage of the filler 53 during filling, the lower core member 52 is shown in FIG. An end member 54 is inserted and fixed at the upper end position of 51. When the support column 6 is in use, rainwater enters the support column 6 from a joint with a handrail or the like. This rainwater also enters the upper core member 52 whose upper end is open and accumulates at the position of the end member 54. Therefore, the drain hole 52 a for discharging this rainwater to the outside is provided in the end member 54 of the upper core member 52. Formed in the upper position.

  The core material 5 in which the lower core material 51 is integrated with the upper core material 52 is inserted into the support column 6, and is integrated into the support column 6 with an adhesive or other filler, as between the lower core material 51 and the upper core material 52. To do. In the drawing, both are connected by screws 6 a that are screwed into the core material 5 from the outside of the column 6 so that the column 6 can be fixed to the core material 5 after the height of the column 6 with respect to the core material 5 is adjusted. In order to prevent wobbling between the support 6 and the upper core member 52, the filler 53 may be filled. However, as shown in FIGS. It is possible to prevent wobbling by giving the shape inscribed in two directions.

  The support column 6 is integrated with the core material 5 by a screw 6a, a filler, etc., and transmits a bending moment to the core material 5. Therefore, the lower end portion of the core material 5 only needs to be fixed to the holding member 4. In order to prevent and stabilize the lower end of the support 6, the lower end of the support 6 is also fixed in the holding member 4.

  Although the lower end portion of the support column 6 may not be inserted into the holding member 4, when the lower end portion of the support column 6 is fixed to the holding member 4, the entire length of the support column 6 can be given resistance to bending moment. . A drainage hole 6b is formed at the lower end of the support 6 at the level of the filler 11 filled in the holding member 4 to drain rainwater that has entered the support 6 and descended to the lower end.

  Here, an operation procedure for fixing the support 6 to the structure 7 will be described with reference to FIGS. First, the support member 2 is installed at a target position on the heat insulating material 10 as shown in FIG. At this time, by placing a mark for the support member 2 on the upper surface of the heat insulating material 10, the installation position of the support member 2 can be determined by using the exhaust hole 3 c of the receiving member 3.

  Specifically, when there is one exhaust hole 3c, the center of the exhaust hole 3c is aligned with the mark, and when there are a plurality of exhaust holes 3c, the center of the center exhaust hole 3c is aligned with the mark, thereby positioning accurately. . In the drawing, a spacer 3 d for constraining deformation of the side plate 3 b when the structural member 71 is placed is installed between the side plates 3 b and 3 b of the receiving member 3.

  After the support member 2 is installed, a reinforcing bar 13 or other reinforcing material 13 for reinforcing the structure 7 is arranged (reinforced) around the holding member 4 as shown in FIG. The closing member 12 is inserted into 4. The reinforcing member 13 is arranged using the receiving member 3 of the supporting member 2 and is positioned in the structure 7 by being placed on the side plate 3b of the receiving member 3 as shown in FIG. The closing member 12 is made of a material such as polyurethane foam which is easy to handle and difficult to deform.

  In the state of FIG. 3- (b), as shown to (c), construction of the structure 7 is performed by placement of the structural material 71, such as concrete. After the structural material 71 is cured, the closing member 12 is recovered as shown in (d), and the column 6 with the core material 5 is inserted into the holding member 4 as shown in (e). After that, the core material 5 or the support column 6 is fixed to the holding member 4 by filling the holding member 4 with the filler 11. When the core material 5 or the support column 6 is fixed, the installation work of the support column 6 is completed. FIG. 6A shows the appearance of the entire fence after the installation of the fence including the support column 6 on the structure 7 is completed.

  The blocking member 12 is inscribed in the holding member 4 to prevent the structural material 71 from flowing into the holding member 4 when the structural material 71 is placed, but the blocking member 12 protrudes from the holding member 4. As shown in FIG. 1, the structural material 71 can be placed (filled) to a level above the upper end of the holding member 4.

  When the structural material 71 is driven to a level above the upper end of the holding member 4, when the filler 11 is filled into the holding member 4, the inner peripheral surface of the hardened structural material 71 is filled with the filler 11. Therefore, the filler 11 can be filled up to a level above the upper end of the holding member 4. Since the holding member 4 is completely embedded in the structural material 71 and the filler 11 by filling the filler 11 beyond the upper end of the holding member 4, the holding member 4 is exposed to the outside air and rain water. And the holding member 4 is protected against deterioration due to exposure.

  When it is necessary to replace the column 6 due to the arrival of the service life, etc., the column 6 and the core material 5 are cut at a portion protruding from the filler 11 at the lower end of the column 6 and these are collected. Is done. After that, the filler 11 around the core 5 in the holding member 4 is cut by a core drill along the outer peripheral surface of the leg 6 and the pillar 6 and the core 5 embedded in the filler 11 are removed. To be done. Since the core material 5 is not fixed to the holding member 4 by means other than the filler 11 such as bolts, the support 6 and the core material 5 are collected only by forming a hole.

  As a result of the recovery of the column 6 and the core material 5 only by forming the hole, it is not necessary to form a hole in the region including the holding member 4, and the structure 7 is not damaged. It can be kept in a healthy state that can be used continuously. Therefore, the new core material 5 and the support column 6 are installed in the area of the holding member 4 where the filler material 11 is removed, and the installation of the new support column 6 can be completed by filling the filler material 11 therearound.

(A) is a longitudinal cross-sectional view showing the relationship between the holding device, the core material, and the support in the structure, (b) is a cross-sectional view of the support, (c) is a cross-sectional view of the upper core, and (d) is a cross-sectional view. It is a cross-sectional view of a lower core material. (A) is the perspective view which showed the relationship between a holding | maintenance apparatus and a support | pillar, (b) is the perspective view which showed a mode that the core material was comprised combining the lower core material and the upper core material, (c) is a lower core material. The shown perspective view, (d) is a partially enlarged view of (a). (A)-(e) is the perspective view which showed the operation | work procedure from installation of a holding device to installation of a support | pillar. (A)-(c) is the perspective view which showed the operation | movement procedure of the conventional method. (A), (b) is the perspective view which showed the operation | movement procedure of the other conventional method. (A) is the elevation which showed the appearance of the fence supported using the holding device of the present invention, and (b) is the elevation which showed the appearance of the conventional fence.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ......... Holding apparatus for support | pillar 2 ......... Supporting member 3 ......... Reception member, 3a ...... Bottom plate, 3b ... Side plate, 3c ... Exhaust hole, 3d ... Spacer 4 ......... Holding core material 5 ... …… Core material, 51 …… Lower core material, 52 …… Upper core material, 52a …… Drain hole, 53 …… Filler material, 54 …… End member 6 ………… Post, 6a …… Screw, 6b …… Drain hole 7 ......... Structure, 71 ... Structural material 8 ...... Base material 9 ......... Waterproof layer 10 ... Heat insulation layer 11 ... Filling material 12 ... Closing member 13 ... Reinforcing material

Claims (4)

A support member having a bottom plate and embedded in a structure, a support member having a hollow holding member fixed to the bottom plate of the support member, and being fixed by being inserted into the support member of the support member And holding a hollow column from the inner periphery , and a core member fixed at a lower end in contact with the bottom plate of the receiving member ,
The core material is composed of a lower core material inserted into the holding member, and an upper core material that is longer than the lower core material and is integrated with the lower core material while surrounding the lower core material,
The full length of the support column is an upper section where the core material does not overlap, an intermediate section where the upper core material overlaps to form a double structure, and the upper core material and the lower core material overlap to form a triple structure. A support device for a column, which is divided into a lower section . The support device for a column according to claim 1 , wherein an exhaust hole is formed in a bottom plate of the receiving member. A structure for mounting the support device for a support according to claim 1 or 2 to a structure, wherein at least the receiving member of the support member is embedded in the structure, and the core member is in the holding member. A support structure for a support device for struts, wherein the support member is inserted into the support member and filled with a filler to fix the core material. Installing a support member having a receiving member having a bottom plate and a hollow holding member fixed to the bottom plate of the receiving member at a construction position of the structure on which the support is erected;
Building the structure with the upper end of the holding member closed;
The closure of the holding member is released, a hollow support is held in the holding member from the inner periphery , and a core material fixed in a state of being in contact with the bottom plate of the receiving member is inserted at the lower end, and the holding member by filling a filler viewing including the step of fixing the core member within,
The core material is composed of a lower core material inserted into the holding member, and an upper core material that is longer than the lower core material and is integrated with the lower core material while surrounding the lower core material,
The full length of the support column is an upper section where the core material does not overlap, an intermediate section where the upper core material overlaps to form a double structure, and the upper core material and the lower core material overlap to form a triple structure. A method of attaching a support device for a column, wherein the support device is divided into a lower section .

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