Support, support structure, and support structure construction method

Abstract

A support is provided that can increase the rigidity of the first clipping section and the second clipping section. [Solution] A support 16A for constructing the foundation of a building, comprising a first clamping portion 17A having first plate-shaped portions 17aA, 17bA, a second clamping portion 18A having second plate-shaped portions 18aA, 18bA, a bottom portion 19A connected to the lower end of the first clamping portion 17A and the lower end of the second clamping portion 18A, respectively, and a reinforcing portion 20A capable of reinforcing the first clamping portion 17A or the second clamping portion 18A, wherein each of the first plate-shaped portions 17aA, 17bA is connected in a position extending upward from the bottom portion 19A, and each of the second plate-shaped portions 18aA, 18bA is connected in a position extending upward from the bottom portion 19A, and the reinforcing portion 20A is arranged to extend upward from the bottom portion 19A.

Description

[Technical Field]

[0001] The present disclosure relates to supports, support structures, and methods of constructing support structures. [Background technology]

[0002] Conventionally, a plate-like body has been used as part of a formwork for constructing the foundation of a building (see, for example, Patent Documents 1 and 2). A support body is used to support the plate-like body. The support body includes a first clamping portion, a second clamping portion, and a bottom portion connected to the lower end of the first clamping portion and the lower end of the second clamping portion, respectively.

[0003] The first clipping section has a pair of first plate-shaped portions for arranging the first plate-shaped body, and the second clipping section has a pair of second plate-shaped portions for arranging the second plate-shaped body. For example, a floor, a door frame, etc. are arranged above the first and second clamping sections. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 57-209364 [Patent Document 2] Patent No. 5805904 Summary of the Invention [Problem to be solved by the invention]

[0005] The inventors have considered using a formwork having a first wall, a second wall, and a bottom wall to construct the foundation of a building. The second wall is disposed opposite the first wall. The bottom wall is connected to the lower ends of the first wall and the second wall, respectively. To construct the foundation of a building, this formwork is placed in areas that do not correspond to door frames, shutters, etc., and the first and second plate-like bodies supported by supports are placed in areas that correspond to these. Concrete is then poured into the area enclosed by the formwork and the first and second plate-like bodies to construct the foundation.

[0006] However, there is a demand for the support to be highly rigid or lightweight, etc. There is a demand for high rigidity in the first clamping portion and the second clamping portion of the support.

[0007] The present disclosure has been made in consideration of such problems, and aims to provide a support body that can increase the rigidity of the first clamping portion and the second clamping portion, a support structure that includes this support body, and a construction method for the support structure. [Means for solving the problem]

[0008] The present disclosure relates to a support for constructing the foundation of a building, comprising a first clamping portion having a pair of opposing first plate-shaped portions, a second clamping portion having a pair of opposing second plate-shaped portions arranged opposite the first clamping portion, bottom portions connected to the lower ends of the first clamping portion and the second clamping portion, respectively, and a reinforcing portion capable of reinforcing the first clamping portion or the second clamping portion, wherein each of the pair of first plate-shaped portions is connected to the bottom in a position extending upward from the bottom, each of the pair of second plate-shaped portions is connected to the bottom in a position extending upward from the bottom, and the reinforcing portion is arranged to extend upward from the bottom. The present disclosure also provides a support structure including a support body, a first plate-like body arranged in the first clamping portion, and a second plate-like body arranged in the second clamping portion.

[0009] The present disclosure also provides a support structure comprising a support body, a formwork having a first wall, a second wall arranged opposite the first wall, and bottom walls connected to the lower ends of the first wall and the second wall, a first plate-like body arranged in the first clamping section, and a second plate-like body arranged in the second clamping section, wherein the formwork is arranged on both sides of the width direction of the first clamping section relative to the support body, so that in the direction in which the pair of first plate-like sections face each other, the first wall side relative to the second wall is the first clamping side relative to the second clamping section. The present disclosure also provides a construction method for a support structure, comprising: a support placement step for placing a support on the ground; a form placement step for placing a plurality of formworks having a first wall, a second wall placed opposite the first wall, and bottom walls connected to the lower ends of the first wall and the second wall, respectively, on both sides of the width direction of the first clamping portion relative to the support, so that in the opposing direction in which the pair of first plate-shaped portions face each other, the first wall side relative to the second wall is the first clamping portion side relative to the second clamping portion; and a plate-shaped body placement step for placing a first plate-shaped body and a second plate-shaped body on the first clamping portion and the second clamping portion, respectively. [Effects of the Invention]

[0010] In the support body, support structure, and support structure construction method of the present invention, it is possible to increase the rigidity of the first clamping portion and the second clamping portion. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a plan view of a main part of a building in which a formwork structure according to one embodiment of the present invention is used. [Figure 2] FIG. 2 is a cross-sectional view taken along the line A1-A1 in FIG. [Figure 3] FIG. 1 is a perspective view of multiple supports in the formwork structure. [Figure 4] 1 is a flowchart showing a method for constructing a formwork structure according to one embodiment of the present invention. [Figure 5] FIG. 10 is a perspective view of a support body according to a first modified example of an embodiment of the present invention. [Figure 6]FIG. 10 is a perspective view of a support body according to a second modified example of an embodiment of the present invention. [Figure 7] FIG. 10 is a perspective view of a support body according to a third modified example of an embodiment of the present invention. [Figure 8] FIG. 10 is a perspective view of a support body according to a fourth modified example of an embodiment of the present invention. [Figure 9] FIG. 10 is a perspective view of a support body according to a fifth modified example of an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, one embodiment of a support body, a support structure, and a method for constructing a support structure (hereinafter simply referred to as a construction method) according to the present invention will be described with reference to FIGS. 1 and 2, a formwork structure (support structure) 15 of this embodiment is used for a building 1. Note that in FIG. 1, some components are omitted. The building 1 comprises main columns 10, a formwork structure 15, a floor 55, and a door structure 60. The formwork structure 15 is the foundation of the building 1. Here, the outline L1 of the formwork structure 15 in plan view is defined. In plan view, the direction from the inside to the outside of the outline L1 (building 1, formwork structure 15) is defined as the outside D1, and the direction from the outside to the inside of the outline L1 is defined as the inside D2.

[0013] As shown in Fig. 2, a depression G2 is formed in the ground G1 in accordance with the shape of the formwork structure 15 (outline L1) shown in Fig. 1. A plurality of foundations (not shown) are buried at intervals along the bottom surface of the depression G2. For example, the foundations are formed of concrete in a cylindrical shape. For example, the main pillar 10 is made of an H-shaped steel. The main pillar 10 extends upward from the foundation. As shown in Figures 1 and 2, the formwork structure 15 has a plurality of (two in this embodiment) supports 16A, 16B, a plurality of formworks 26, a first plate-like body 31, a second plate-like body 36, and a beam 46.

[0014] As shown in FIG. 3, the configuration of support 16A and the configuration of support 16B are plane-symmetrical with respect to reference plane S1. For this reason, the configuration of support 16A is indicated by adding the capital letter "A" to the numeral or numeral and lowercase alphabetical character of the reference symbol. The configuration of support 16B corresponding to support 16A is indicated by adding the capital letter "B" to the numeral or numeral and lowercase alphabetical character of the reference symbol of support 16A. This avoids redundant explanation. For example, a first clamping portion 17A of support 16A (described later) and a first clamping portion 17B of support 16B are plane-symmetrical with respect to reference plane S1.

[0015] The support body 16A is used to construct the foundation of a building, and has a first clip portion 17A, a second clip portion 18A, a bottom portion 19A, and a reinforcing portion 20A. The first clamping portion 17A has a pair of first plate-shaped portions 17aA, 17bA facing each other in the facing direction X. The second clamping portion 18A is disposed opposite the first clamping portion 17A in the facing direction X. The second clamping portion 18A has a pair of second plate-shaped portions 18aA, 18bA facing each other in the facing direction X. The first plate-shaped portions 17aA, 17bA, the second plate-shaped portions 18aA, 18bA, the bottom portion 19A, and the reinforcing portion 20A are each formed in a flat plate shape. In this example, the first plate-shaped portions 17aA, 17bA, the second plate-shaped portions 18aA, 18bA, the bottom portion 19A, and the reinforcing portion 20A are each rectangular when viewed in the thickness direction. However, the shapes of the first plate-shaped portions 17aA, 17bA, the second plate-shaped portions 18aA, 18bA, the bottom portion 19A, and the reinforcing portion 20A are not limited thereto. For example, the first plate-shaped portions 17aA, 17bA, the second plate-shaped portions 18aA, 18bA, the bottom portion 19A, and the reinforcing portion 20A are formed of steel plates.

[0016] The bottom 19A is disposed so that the thickness direction of the bottom 19A is along the vertical direction Z. Here, the width direction Y of the first clamping portion 17A is defined to be perpendicular to both the facing direction X and the vertical direction Z (thickness direction of the bottom 19A). "A is along B" means that the angle between A and B is 30 degrees or less. The bottom portion 19A is connected to the lower end of the first clip portion 17A and the lower end of the second clip portion 18A.

[0017] The first plate-shaped portions 17aA, 17bA of the first clipping portion 17A extend upward from an end of the bottom portion 19A on a first side X1 (hereinafter simply referred to as the first side X1) in the opposing direction X. Each of the pair of first plate-shaped portions 17aA, 17bA is connected to the bottom portion 19A in a position extending upward from the bottom portion 19A. The first plate-shaped portion 17aA is disposed closer to the first side X1 than the first plate-shaped portion 17bA. A gap is formed between the first plate-shaped portion 17aA and the first plate-shaped portion 17bA. In this example, the first plate-shaped portion 17aA is disposed at the end of the bottom portion 19A on the first side X1.

[0018] The second plate-shaped portions 18aA, 18bA of the second clipping portion 18A extend upward from an end of a second side X2 (hereinafter simply referred to as the second side X2) of the bottom portion 19A that is opposite to the first side X1 in the facing direction X. Each of the pair of second plate-shaped portions 18aA, 18bA is connected to the bottom portion 19A in a position extending upward from the bottom portion 19A. The second plate-shaped portion 18aA is disposed closer to the first side X1 than the second plate-shaped portion 18bA. A gap is formed between the second plate-shaped portion 18aA and the second plate-shaped portion 18bA. In this example, the second plate-shaped portion 18bA is disposed at the end of the bottom portion 19A on the second side X2.

[0019] Of the first plate-shaped portions 17aA and 17bA, the first plate-shaped portion 17aA is the one farther from the second clipping portion 18A. Of the first plate-shaped portions 17aA and 17bA, the first plate-shaped portion 17bA is the one closer to the second clipping portion 18A. Of the first plate-shaped portions 17aA and 17bA, the height of the first plate-shaped portion 17aA is different from the height of the first plate-shaped portion 17bA. More specifically, the height of the first plate-shaped portion 17bA is shorter than the height of the first plate-shaped portion 17aA. The height of the first plate-shaped portion 17aA here refers to the length of the first plate-shaped portion 17aA in the up-down direction Z (thickness direction of the bottom portion 19A). The height of the first plate-shaped portion 17bA and the heights of the second plate-shaped portions 18aA, 18bA are the same as the height of the first plate-shaped portion 17aA. In this example, the height of the second plate-shaped portion 18aA is equal to the height of the second plate-shaped portion 18bA. The height of first plate-shaped portion 17bA may be equal to or greater than the height of first plate-shaped portion 17aA. The height of second plate-shaped portion 18aA may be greater than or less than the height of second plate-shaped portion 18bA.

[0020] The height of first clamping portion 17A is greater than the height of second clamping portion 18A. Here, the height of first clamping portion 17A refers to the length in the up-down direction Z (thickness direction of bottom portion 19A) of the higher (not lower) of the multiple first plate-shaped portions 17aA, 17bA that first clamping portion 17A has. The height of second clamping portion 18A is the same as the height of first clamping portion 17A. The height of first clipping portion 17A may be equal to the height of second clipping portion 18A, or may be lower than the height of second clipping portion 18A. The width of first clipping portion 17A is shorter (smaller, narrower) than the width of second clipping portion 18A. Here, the width of first clipping portion 17A refers to the overall length in the width direction Y of first plate-shaped portions 17aA, 17bA of first clipping portion 17A (the overall length in the width direction Y of the shape of first plate-shaped portions 17aA, 17bA projected in the opposing direction X). The width of second clipping portion 18A is the same as the width of first clipping portion 17A.

[0021] The width of the first plate-shaped portion 17aA and the width of the first plate-shaped portion 17bA are equal to each other, and the width of the second plate-shaped portion 18aA and the width of the second plate-shaped portion 18aA are equal to each other. The width of first plate-shaped portion 17aA and the width of first plate-shaped portion 17bA may be different from each other. The width of second plate-shaped portion 18aA and the width of second plate-shaped portion 18bA may be different from each other. The width of first clipping portion 17A may be longer (larger or wider) than the width of second clipping portion 18A, or may be equal to the width of second clipping portion 18A.

[0022] The position of the end of the first side Y1 of the first clamping portion 17A as a whole, the position of the end of the first side Y1 of the second clamping portion 18A as a whole, and the position of the end of the first side Y1 of the bottom portion 19A are all aligned in the width direction Y. Here, the side opposite to the first side Y1 in the width direction Y is defined as the second side Y2. In the width direction Y, the position of the end of the second side Y2 of the second clipping portion 18A as a whole and the position of the end of the second side Y2 of the bottom portion 19A are aligned with each other. The width of at least a portion of bottom portion 19A is greater than the overall width of at least one of first clipping portion 17A and second clipping portion 18A. Specifically, the width of bottom portion 19A is greater than the overall width of first clipping portion 17A. An end of the bottom 19A on the second side Y2 protrudes further toward the second side Y2 than the end of the first clipping portion 17A on the second side Y2. The portion of the bottom 19A that protrudes further toward the second side Y2 than the first clipping portion 17A (a part of the bottom 19A) forms an ear portion 19Ap.

[0023] The width of at least a portion of the bottom 19A may be longer than the longer of the widths of the first clipping portion 17A and the second clipping portion 18A. The end of the first side Y1 of the bottom 19A may protrude further toward the first side Y1 than the end of the first side Y1 of the first clipping portion 17A. The position of the end of the second side Y2 of the first plate-shaped portion 17aA and the position of the end of the second side Y2 of the bottom 19A may coincide with each other. In the width direction Y, the end of the first side Y1 of the first clipping portion 17A as a whole may be located closer to the first side Y1 or the second side Y2 than the end of the first side Y1 of the second clipping portion 18A as a whole. The second plate-shaped portion 18aA may protrude further toward the first side Y1 or the second side Y2 than the bottom portion 19A. The second plate-shaped portion 18aB is similar to the second plate-shaped portion 18aA. The width of the bottom portion 19A may be equal to the overall width of the first clip portion 17A and the overall width of the second clip portion 18A.

[0024] The reinforcing portion 20A can reinforce the first clamping portion 17A or the second clamping portion 18A. The reinforcing portion 20A is connected to either the first clamping portion 17A and the second clamping portion 18A or the bottom portion 19, and can reinforce the first clamping portion 17A and the second clamping portion 18A. The reinforcing portion 20A may be connected to both the first clipping portion 17A and the second clipping portion 18A, or may be connected to either the first clipping portion 17A or the second clipping portion 18A. The reinforcing portion 20A includes a first reinforcing portion 21A connected to the first clipping portion and a second reinforcing portion 22A connected to the second clipping portion. The reinforcing portion 20A is disposed on the second side X2 of the first plate-shaped portion 17bA and is joined to both the first plate-shaped portion 17bA and the bottom portion 19A. The reinforcing portion 20B is disposed on the first side X1 of the second plate-shaped portion 18aA and is joined to both the second plate-shaped portion 18aA and the bottom portion 19A. The first reinforcing portion 21A has a pair of third plate-shaped portions 21aA, 21bA facing each other in the width direction Y. The second reinforcing portion 22A is disposed facing the first reinforcing portion 21A in the facing direction X. The second reinforcing portion 22A has a pair of third plate-shaped portions 22aA, 22bA facing each other in the width direction Y. The third plate-shaped portions 21aA, 21bA and the third plate-shaped portions 22aA, 22bA are each formed in a flat plate shape. In this example, the third plate-shaped portions 21aA, 21bA and the third plate-shaped portions 22aA, 22bA have a rectangular shape when viewed in the thickness direction. However, the shapes of the third plate-shaped portions 21aA, 21bA and the third plate-shaped portions 22aA, 22bA are not limited thereto. For example, the third plate-shaped portions 21aA, 21bA and the third plate-shaped portions 22aA, 22bA are formed of steel plates.

[0025] The third plate-shaped portions 21aA, 21bA of the first reinforcing portion 21A are arranged to extend upward from a first side X1 of the bottom portion 19A in the opposing direction X. Each of the pair of third plate-shaped portions 21aA, 21bA is connected to the bottom portion 19A in a position extending upward from the bottom portion 19A. The third plate-shaped portions 21aA, 21bA are connected approximately perpendicular to the bottom portion 19A. The third plate-shaped portion 21aA is disposed closer to the first side Y1 than the third plate-shaped portion 21bA. A gap is formed between the third plate-shaped portion 21aA and the third plate-shaped portion 21bA. In this example, the third plate-shaped portions 21aA and 21bA are disposed on the first side X1 of the bottom portion 19A. The third plate-shaped portions 21aA, 21bA of the first reinforcing portion 21A are arranged to extend from the first plate-shaped portion 17bA of the first clipping portion 17A toward the second side X2 in the opposing direction X. Each of the pair of third plate-shaped portions 21aA, 21bA is connected to the first plate-shaped portion 17bA in a position extending from the first plate-shaped portion 17bA toward the second side X2. The third plate-shaped portions 21aA, 21bA are connected approximately perpendicular to the first plate-shaped portion 17bA of the first clipping portion 17A.

[0026] The third plate-shaped portions 22aA, 22bA of the second reinforcing portion 22A are arranged to extend upward from a second side X2 of the bottom portion 19A that is opposite to the first side X1 in the opposing direction X. Each of the pair of third plate-shaped portions 22aA, 22bA is connected to the bottom portion 19A in a position extending upward from the bottom portion 19A. The third plate-shaped portions 22aA, 22bA are connected approximately perpendicular to the bottom portion 19A. The third plate-shaped portion 22aA is disposed closer to the first side X1 than the third plate-shaped portion 22bA. A gap is formed between the third plate-shaped portion 22aA and the third plate-shaped portion 22bA. In this example, the third plate-shaped portions 22aA and 22bA are disposed on the second side X2 of the bottom portion 19A. The third plate-shaped portions 22aA, 22bA of the second reinforcing portion 22A are arranged to extend from the second plate-shaped portion 18aA of the second clipping portion 18A toward the first side X1 in the opposing direction X. Each of the pair of third plate-shaped portions 22aA, 22bA is connected to the second plate-shaped portion 18aA in a position extending from the second plate-shaped portion 18aA toward the first side X1. The third plate-shaped portions 22aA, 22bA are connected approximately perpendicular to the second plate-shaped portion 18aA of the second clipping portion 18A.

[0027] Of the third plate-shaped portions 21aA and 21bA, the third plate-shaped portion 21aA is the third plate-shaped portion that is farther from the support body 16B. Of the third plate-shaped portions 21aA and 21bA, the third plate-shaped portion 21bA is the third plate-shaped portion that is closer to the support body 16B. The height of the third plate-shaped portion 21aA is equal to the height of the third plate-shaped portion 21bA. Here, the height of the third plate-shaped portion 21aA refers to the length of the third plate-shaped portion 21aA in the up-down direction Z (thickness direction of the bottom portion 19A). The height of the third plate-shaped portion 21bA and the heights of the third plate-shaped portions 22aA and 22bA are also the same as the height of the third plate-shaped portion 21aA. In this example, the height of the third plate-shaped portion 22aA is equal to the height of the third plate-shaped portion 22bA. The height of the third plate-shaped portion 21aA may be different from the height of the third plate-shaped portion 21bA. The height of the third plate-shaped portion 21aA may be higher than the height of the third plate-shaped portion 21bA, or may be lower than the height of the third plate-shaped portion 21bA. The height of the third plate-shaped portion 22aA may be different from the height of the third plate-shaped portion 22bA. The height of the third plate-shaped portion 22aA may be higher than the height of the third plate-shaped portion 22bA, or may be lower than the height of the second plate-shaped portion 18aB. The heights of the third plate-shaped portions 21aA and 21bA may be equal to or different from (lower than) the height of the first plate-shaped portion 17bA. The heights of the third plate-shaped portions 22aA and 22bA may be equal to or different from (lower than) the height of the second plate-shaped portion 18aA.

[0028] The height of the first reinforcing portion 21A is equal to the height of the second reinforcing portion 22A. Here, the height of the first reinforcing portion 21A refers to the length in the up-down direction Z (thickness direction of the bottom portion 19A) of the higher (not lower) of the multiple third plate-shaped portions 21aA, 21bA that the first reinforcing portion 21A has. The height of the second reinforcing portion 22A is also the same as the height of the first reinforcing portion 21A. The height of the first reinforcing portion 21A may be different from the height of the second reinforcing portion 22A. The height of the first reinforcing portion 21A may be higher than the height of the second reinforcing portion 22A, or may be lower than the height of the second reinforcing portion 22A. The height of the first reinforcing portion 21A may be equal to or different from (lower than) the height of the first clipping portion 17A. The height of the second reinforcing portion 22A may be equal to or different from (lower than) the height of the second clipping portion 18A.

[0029] The width of the first reinforcing portion 21A is equal to the width of the second reinforcing portion 22A. The width of the first reinforcing portion 21A here means the length in the opposing direction X of the entire third plate-shaped portions 21aA, 21bA of the first reinforcing portion 21A (the length in the opposing direction X of the entire shape of the third plate-shaped portions 21aA, 21bA projected onto the width direction Y). The width of the second reinforcing portion 22A is also the same as the width of the first reinforcing portion 21A.

[0030] The width of the third plate-shaped portion 21aA and the width of the third plate-shaped portion 21bA are equal to each other. The width of the third plate-shaped portion 22aA and the width of the third plate-shaped portion 22bA are equal to each other. The width of the third plate-shaped portion 21aA and the width of the third plate-shaped portion 21bA may be different from each other. The width of the third plate-shaped portion 22aA and the width of the third plate-shaped portion 22bA may be different from each other. The width of the first reinforcing portion 21A may be different from the width of the second reinforcing portion 22A. The width of the first reinforcing portion 21A may be longer (larger, wider) than the width of the second reinforcing portion 22A, or may be shorter (smaller, narrower) than the width of the second reinforcing portion 22A.

[0031] The position of the entire first reinforcing portion 21A in the width direction Y and the position of the entire second reinforcing portion 22A in the width direction Y are approximately the center of the bottom 19A in the width direction Y. Here, approximately the center in the width direction Y means the intermediate position between the end position of the first side Y1 and the end position of the second side Y2 of the bottom 19A. In the width direction Y, the position of the first side Y1 of the third plate-shaped portion 21aA and the position of the first side Y1 of the third plate-shaped portion 22aA coincide with each other. In the width direction Y, the position of the end of the second side Y2 of the third plate-shaped portion 21bA coincides with the position of the second side Y2 of the third plate-shaped portion 22bA. The position of the first reinforcing portion 21A as a whole in the width direction Y may be located closer to the first side Y1 or the second side Y2 than the position of the second reinforcing portion 22A as a whole in the width direction Y.

[0032] For example, the first plate-shaped portions 17aA, 17bA, second plate-shaped portions 18aA, 18bA, third plate-shaped portions 21aA, 21bA, 22aA, 22bA, bottom portion 19A, and third plate-shaped portions 21aA, 21bA, 22aA, 22bA are joined to one another by welding. As shown in FIG. 2, the support 16A is disposed so that the first side X1 faces the same direction as the outer side D1, and the second side X2 faces the same direction as the inner side D2. The second clamping portion 18A does not have to be disposed opposite the first clamping portion 17A in the opposing direction X.

[0033] As shown in FIG. 3, the support body 16B has a first clamping portion 17B, a second clamping portion 18B, a bottom portion 19B, and a reinforcing portion 20B that are configured symmetrically with respect to the reference plane S1 with respect to the first clamping portion 17A, the second clamping portion 18A, the bottom portion 19A, and the reinforcing portion 20A of the support body 16A. The supports 16A and 16B are arranged side by side in the width direction Y so that the ear portions 19Ap and 19Bp are on the outside in the width direction Y. In other words, the support 16B is arranged on the first side Y1 of the support 16A.

[0034] 1 and 2, the formwork 26 has a first wall 27, a second wall 28, and a bottom wall 29. The first wall 27, the second wall 28, and the bottom wall 29 are each formed in a flat plate shape. In this example, the first wall 27, the second wall 28, and the bottom wall 29 each have a rectangular shape when viewed in the thickness direction. For example, the first wall 27, the second wall 28, and the bottom wall 29 are made of reinforced concrete.

[0035] The bottom wall 29 is disposed so that the thickness direction of the bottom wall 29 is along the up-down direction Z. The second wall 28 is disposed so as to face the first wall 27 in the facing direction X. The bottom wall 29 is connected to the lower end of the first wall 27 and the lower end of the second wall 28, respectively. The first wall 27 extends upward from the end of the first side X1 of the bottom wall 29. The second wall 28 extends upward from the end of the second side X2 of the bottom wall 29. The height of the first wall 27 is greater than the height of the second wall 28. In this example, the formwork 26 has a J-shape when viewed in the width direction Y shown in Fig. 2. However, the shape of the formwork is not limited to this. The height of the first wall 27 may be equal to or lower than the height of the second wall 28.

[0036] 1, the multiple formwork 26 is arranged on both sides of the entire supports 16A, 16B in the width direction Y. In other words, the formwork structure 15 has multiple (two in this embodiment) supports 16A, 16B lined up in the width direction Y. The formwork 26 is arranged on both sides of the entire supports 16A, 16B in the width direction Y. Here, of the multiple formworks 26, the formwork 26 arranged on the second side Y2 of the supports 16A and 16B is also referred to as formwork 26A. Of the multiple formworks 26, the formwork 26 arranged on the first side Y1 of the supports 16A and 16B is also referred to as formwork 26B. The multiple formworks 26 are arranged in the facing direction X such that the first wall 27 side relative to the second wall 28 is the first clamping portion 17A side relative to the second clamping portion 18A.

[0037] 1 and 2, the ear 19Ap of the support body 16A is pressed from above by a part of the bottom wall 29 of the formwork 26A. Similarly, the ear 19Bp of the support body 16B is pressed from above by a part of the bottom wall 29 of the formwork 26B.

[0038] For example, the first plate-like body 31 and the second plate-like body 36 are each formed into a flat plate shape by extrusion molding cement boards. The first plate-like body 31 is disposed so that the thickness direction of the first plate-like body 31 is along the opposing direction X. As shown in Fig. 2, the first plate-like body 31 has a plurality of through holes 32 formed therein, which penetrate the first plate-like body 31 in the width direction Y. The plurality of through holes 32 are disposed at intervals from one another in the up-down direction Z. The second plate-like body 36 is configured in the same manner as the first plate-like body 31. The second plate-like body 36 has a plurality of through holes 37 formed therein.

[0039] The height of the first plate-like body 31 is greater than the height of the second plate-like body . The first plate-shaped body 31 is disposed in the first clipping portions 17A and 17B of the supports 16A and 16B. More specifically, the first plate-shaped body 31 is disposed above the bottom portion 19A of the support 16A between the first plate-shaped portion 17aA and the first plate-shaped portion 17bA, and above the bottom portion 19B of the support 16B between the first plate-shaped portion 17aB and the first plate-shaped portion 17bB. The second plate-shaped body 36 is disposed in the second clipping portions 18A, 18B of the supports 16A, 16B. More specifically, the second plate-shaped body 36 is disposed above the bottom portion 19A of the support 16A, between the second plate-shaped portions 18aA and 18bA, and above the bottom portion 19B of the support 16B, between the second plate-shaped portions 18aB and 18bB.

[0040] The height of the first plate-shaped body 31 is greater than the height of the first clipping portion 17A. The height of the second plate-shaped body 36 is greater than the height of the second clipping portion 18A. As shown in FIG. 1, the length of the first plate-like body 31 in the width direction Y is equal to the distance between the formwork 26A and the formwork 26B. The first plate-like body 31 is disposed between the formwork 26A and the formwork 26B in the width direction Y. The surface of the first plate-like body 31 facing the first side X1 is substantially flush with the surfaces of the first walls 27 of the multiple formworks 26 facing the second side X2. The length of the second plate-like body 36 in the width direction Y is longer than the distance between the formwork 26A and the formwork 26B. The second plate-like body 36 is disposed on the second side X2 (opposite the first wall 27) of the second wall 28. The end of the second plate-like body 36 in the width direction Y contacts the second wall 28 of the formworks 26A, 26B from the second side X2 of the second wall 28.

[0041] 2, in this embodiment, a metal fitting (accessory member) 39 is fixed to the first plate-like body 31 by a plurality of fixing members 40 and a plurality of fastening members 41. The first plate-like body 31, the metal fitting 39, the fixing members 40, and the fastening members 41 constitute an accessory member mounting structure 42.

[0042] The metal fitting 39 has an L-shape when viewed in the width direction Y. The metal fitting 39 has a first piece 39a and a second piece 39b. The first piece 39a and the second piece 39b are each formed in a flat plate shape. The first piece 39a is in contact with the upper surface of the first plate-shaped body 31 from above this upper surface. The second piece 39b protrudes downward from the end of the first piece 39a on the second side X2. The second piece 39b contacts the surface of the first plate-shaped body 31 facing the second side X2 from the second side X2 of this surface. The metal fitting 39 having the first piece 39a and the second piece 39b is formed of a steel plate, etc. For example, the metal fitting 39 extends over the entire length of the first plate-shaped body 31 in the width direction Y (see FIG. 1).

[0043] The fixing member 40 has a Z-shape when viewed in the width direction Y. The fixing member 40 has a first arm portion 40a and a second arm portion 40b. The first arm portion 40a and the second arm portion 40b are each formed in a flat plate shape. The first arm 40a contacts the second piece 39b of the metal fitting 39 from the second side X2 of the second piece 39b. The first arm 40a and the first plate-shaped body 31 sandwich the second piece 39b in the opposing direction X. The second arm 40b protrudes downward from the first side X1 at the lower end of the first arm 40a. A communication hole (reference numeral omitted) penetrating in the opposing direction X is formed in the second arm 40b. The second arm portion 40b is in contact with the surface of the first plate-shaped body 31 facing the second side X2 from the second side X2 of this surface. A plurality of (two in this embodiment) fixing members 40 are arranged at both ends in the width direction Y of the first plate-shaped body 31, respectively.

[0044] The fastening member 41 includes a nut 41a and a bolt 41b. The nut 41a is disposed in the through-hole 32 of the first plate-like body 31. The head of the bolt 41b (reference numeral omitted) is in contact with the surface of the second arm portion 40b of the fixing member 40 facing the second side X2, from the second side X2 of this surface. The shank of the bolt 41b (reference numeral omitted) is fitted into the nut 41a through a communicating hole of the fixing member 40 and a communicating hole (reference numeral omitted) of the first plate-like body 31. The head of the bolt 41b and the nut 41a sandwich the second arm portion 40b of the fixing member 40 and the first plate-like body 31 in the opposing direction X. The number of fixing members 40 and the number of fastening members 41 provided in the accessory component mounting structure 42 are not limited.

[0045] For example, the beam 46 is made of an H-shaped steel. That is, the beam 46 has a pair of flanges 47, 48 and a web 49 joined to each of the flanges 47, 48. The flange 47 is disposed higher than the flange 48. The beam 46 extends in the width direction Y along a horizontal plane. The ends of the beams 46 in the width direction Y are joined to the main columns 10. The beams 46 are arranged between the first wall 27 and the second wall 28 of the formwork 26, and between the first plate-like body 31 and the second plate-like body 36, in the facing direction X. The beams 46 are arranged above the bottom wall 29 of the formwork 26 and the bottoms 19A, 19B of the supports 16A, 16B, and below the upper ends of the first walls 27 of the formwork 26.

[0046] The floor 55 is made of concrete, wood, etc. The floor 55 is placed above the second plate-like body 36 and is cast so as to embed the beams 46. In this example, the upper surface 55a of the floor 55 is placed above the upper surface of the first piece 39a of the metal fitting 39.

[0047] The door structure 60 includes a door frame 61 and a door body 62 . The door frame 61 is formed in a picture frame shape. The door frame 61 is disposed above the metal fitting 39 and is fixed to the metal fitting 39 by welding or the like. For example, the upper surface of the lower frame 61a of the door frame 61 is flush with the upper surface 55a of the floor 55. The door body 62 is connected to the door frame 61 so as to be able to open and close.

[0048] Next, a construction method for constructing the form structure 15 configured as above will be explained, focusing on the construction of the supports 16A, 16B, formwork 26, first plate-like body 31, and second plate-like body 36. Figure 4 is a flowchart showing the construction method S6. First, in a support arrangement step (step S10 shown in Fig. 4), supports 16A and 16B are arranged on the ground G4 (bottom surface of depression G2) as shown in Fig. 2. At this time, supports 16A and 16B are arranged so that the side of first clamping portion 17A relative to second clamping portion 18A of support 16A and the side of first clamping portion 17B relative to second clamping portion 18B of support 16B face the same direction. When the support placement step S10 is completed, the process proceeds to step S11.

[0049] Next, in a formwork arrangement step S11, as shown in FIG. 1, a plurality of formworks 26 are arranged on both sides of the supports 16A, 16B in the width direction Y, so that the side of the first wall 27 relative to the second wall 28 is the side of the first clamping portions 17A, 17B relative to the second clamping portions 18A, 18B in the facing direction X. At this time, a plurality of formworks 26 are arranged on both sides of the supports 16A, 16B in the width direction Y as a whole. At this time, the edge portion 19Ap of the support 16A is pressed by a part of the bottom wall 29 of the formwork 26A. The edge portion 19Bp of the support 16B is pressed by a part of the bottom wall 29 of the formwork 26B. The formwork arrangement step S11 is performed after the support body arrangement step S10. When the formwork placement step S11 is completed, the process proceeds to step S12.

[0050] Next, in a plate-like body arranging step S12, the first plate-like body 31 and the second plate-like body 36 are arranged in the first clamping units 17A and 17B and the second clamping units 18A and 18B, respectively. The plate-like body arranging step S12 is performed after the formwork arranging step S11. When the plate-like body arrangement step S12 is completed, all steps of the construction method S6 are completed, and the formwork structure 15 is constructed.

[0051] As described above, in the support body 16A of this embodiment, for example, the first plate-like body 31, which is relatively tall, is disposed in the first clamping section 17A, and the second plate-like body 36, which is relatively short, is disposed in the second clamping section 18A. Then, the floor 55 is disposed above the second clamping section 18A and the second plate-like body 36, and the door frame 61 and the like are disposed above the first clamping section 17A and the first plate-like body 31. Therefore, even if the thickness of the floor 55 above the second clamping section 18A and the second plate-like body 36 is increased, the upper surface 55a of the floor 55 and the upper surface of the lower part of the door frame 61 can be disposed so as to be substantially flush with each other. Therefore, it is possible to easily place the floor 55 above the second clamping portion 18A, and also to easily place the door frame 61 and the like above the first clamping portion 17A.

[0052] The support body 16A includes a reinforcing portion 20A connected to the first clamping portion 17A or the second clamping portion 18A. This increases the strength of the first clamping portion 17A that supports the first plate-like body 31 and the second clamping portion 18A that supports the second plate-like body 36. This makes it possible to reduce the height of the first clamping portion 17A or the second clamping portion 18A, or to narrow the lengths of the first clamping portion 17A, the second clamping portion 18A, and the bottom portion 19A in the width direction Y. This allows for reductions in weight and cost of the support body 16A. The reinforcing portion 20A has a pair of opposing third plate-shaped portions 21aA, 21bA, 22aA, and 22bA. Since the first clamping portion 17A and the second clamping portion 18A are supported by the opposing pairs of third plate-shaped portions 21aA, 21bA, 22aA, and 22bA, the strength of the first clamping portion 17A and the second clamping portion 18A can be significantly increased. The pair of third plate-shaped portions 21aA, 21bA, 22aA, and 22bA are provided at approximately the center of bottom portion 19A. Therefore, third plate-shaped portions 21aA, 21bA, 22aA, and 22bA support first clamping portion 17A and second clamping portion 18A at approximately the center in the width direction. Therefore, no uneven load is generated in first clamping portion 17A or second clamping portion 18A, and first clamping portion 17A and second clamping portion 18A can be supported most efficiently.

[0053] The reinforcing portion 20A includes a first reinforcing portion 21A connected to the first clipping portion 17A and a second reinforcing portion 22A connected to the second clipping portion 18A. This reinforces the first clipping portion 17A and the second clipping portion 18A, thereby enabling the entire support body 16A to be made smaller. The first reinforcing portion 21A and the second reinforcing portion 22A are arranged opposite each other, so that a plate-like object formed into a flat plate shape, for example, an extruded cement board, can be sandwiched between the first reinforcing portion 21A and the second reinforcing portion 22A. The reinforcing portion 20A is disposed perpendicular to the first clipping portion 17A and the second clipping portion 18A, thereby enabling the first clipping portion 17A and the second clipping portion 18A to be supported most efficiently.

[0054] Moreover, the formwork structure 15 of this embodiment has a support body 16A, a first plate-like body 31, and a second plate-like body 36. This allows the first clamping portion 17A to support the first plate-like body 31, and the second clamping portion 18A to support the second plate-like body 36. The formwork structure 15 includes supports 16A and 16B, multiple formwork frames 26, a first plate-like body 31, and a second plate-like body 36. Therefore, the first clamping portion 17A supports the first plate-like body 31, and the second clamping portion 18A supports the second plate-like body 36. The formwork frames 26 are arranged on both sides of the supports 16A and 16B in the width direction Y, such that the first wall 27 of the formwork frame 26 facing the second wall 28 is located on the first clamping portion 17A of the support 16A facing the second clamping portion 18A in the facing direction X. This allows the first wall 27 and the first clamping portion 17A, and the second wall 28 and the second clamping portion 18A to be closer to each other in the facing direction X.

[0055] The supports 16A and 16B are arranged side by side in the width direction Y, and formwork 26 is arranged on both sides of the supports 16A and 16B as a whole in the width direction Y. Therefore, with respect to the supports 16A and 16B arranged side by side in the width direction Y, the formwork 26 can be arranged on both sides of the supports 16A and 16B as a whole in the width direction Y. The ears 19Ap of the bottom 19A of the support 16A are pressed by a part of the bottom wall 29 of the formwork 26A. Therefore, the position of the ears 19Ap of the bottom 19A of the support 16A can be stabilized by the part of the bottom wall 29 of the formwork 26A.

[0056] The height of the first wall 27 is greater than the height of the second wall 28, and the height of the first plate-like body 31 is greater than the height of the second plate-like body 36. This allows the first wall 27 and the first plate-like body 31 of the formwork 26A to efficiently withstand the lateral pressure of the concrete.

[0057] In the construction method S6 of this embodiment, in a support arranging step S10, supports 16A, 16B are arranged on the ground G4. Next, in a formwork arranging step S11, a plurality of formworks 26 are arranged on both sides of supports 16A, 16B in the width direction Y, so that the first wall 27 side relative to second wall 28 is the first clamping portions 17A, 17B side relative to second clamping portions 18A, 18B in the facing direction X. This allows the first wall 27 and first clamping portions 17A, 17B, and the second wall 28 and second clamping portions 18A, 18B to approach each other in the facing direction X. Then, in the plate-shaped body arrangement step S12, the first plate-shaped body 31 and the second plate-shaped body 36 can be arranged in the first clipping sections 17A and 17B and the second clipping sections 18A and 18B, respectively.

[0058] In a support arrangement step S10, the supports 16A and 16B are arranged so that the side of the first clamping portion 17A relative to the second clamping portion 18A of the support 16A and the side of the first clamping portion 17B relative to the second clamping portion 18B of the support 16B face the same direction. Then, in a formwork arrangement step S11, a plurality of formworks 26 are arranged on both sides of the supports 16A and 16B as a whole in the width direction Y. Therefore, in the support arrangement step S10, the supports 16A, 16B are arranged so that the first clamping portions 17A, 17B face the same direction relative to the second clamping portions 18A, 18B, thereby aligning the orientations of the supports 16A, 16B. Then, in the formwork arrangement step S11, a plurality of formworks 26 are arranged on both sides of the supports 16A, 16B as a whole in the width direction Y, and the plurality of formworks 26 can sandwich the plurality of supports 16A, 16B in the width direction Y.

[0059] The ears 19Ap of the support 16A are pressed by a part of the bottom wall 29 of the formwork 26A. Therefore, in the formwork placement step S11, the ears 19Ap of the bottom 19A of the support 16A are pressed by a part of the bottom wall 29 of the formwork 26A, thereby stabilizing the position of the support 16A.

[0060] Although one embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and configuration changes, combinations, deletions, etc. are also included within the scope that does not deviate from the gist of the present invention.

[0061] (First Modification) 5, when the bottom 19A does not have ears 19Ap, the width of the first clipping portion 17A and the width of the second clipping portion 18A may be equal to the width of the bottom 19A. Furthermore, the height of the first clipping portion 17A may be equal to the height of the second clipping portion 18A. By configuring support body 71A of this first modified example, first clamping portion 17A and second clamping portion 18A can be made to use common parts, thereby reducing material costs and manufacturing costs. Also, it is possible to prevent mis-positioning of first clamping portion 17A, second clamping portion 18A, first clamping portion 17A, and second clamping portion 18A or mix-up of parts during manufacturing. In FIG. 5, the height of the first clipping portion 17A and the second clipping portion 18A is different from the height of the reinforcing portion 20A and the second clipping portion 18A, but these heights may be the same.

[0062] (Second Modification) A reinforcing portion may be provided only on either the first clamping portion 17A or the second clamping portion 18A, as in the support body 72A of the second modified example shown in Fig. 6. In this example, the reinforcing portion 20A is provided only on the first clamping portion 17A, but the reinforcing portion 20B is not provided on the second clamping portion 18A. By configuring the support body 72A of this second modified example, for example, when reinforcement of the second clipping portion 18A is not required, unnecessary expenses can be reduced and a low-cost support body 72A can be provided.

[0063] (Third Modification) 7, the positions of the first clamping portion 17A and the second clamping portion 18A in the width direction Y may be different. In this example, the first clamping portion 17A is disposed on the first side Y1, and the second clamping portion 18A is disposed on the second side Y2. By configuring the support body 73A of the third modified example as described above, the first clipping portion 17A and the second clipping portion 18A can be appropriately reinforced according to the respective load conditions.

[0064] (Fourth Modification) As in a support body 74A of a fourth modified example shown in FIG. 8, in addition to the components of the support body 16A, a single fourth plate-shaped portion 23aA may be provided as a reinforcing member. For example, the fourth plate-shaped portion 23aA is formed in a flat plate shape with its thickness direction aligned with the width direction Y. The fourth plate-shaped portion 23aA has a trapezoidal shape when viewed in the width direction Y. The fourth plate-shaped portion 23aA is disposed on the second side X2 closer to the first plate-shaped portion 17bA, and is joined to both the first plate-shaped portion 17bA and the bottom portion 19A. The height of the fourth plate-shaped portion 23aA gradually decreases toward the second side X2. The fourth plate-shaped portion 23aA is disposed on the end side of the bottom portion 19A in the width direction Y. In this example, the fourth plate-shaped portion 23aA is disposed on the first side Y1 in the width direction Y. By configuring the support body 74A of the fourth modified example as described above, the strength of the first plate-shaped portion 17bA can be further increased. The shape of the fourth plate-shaped portion 23aA is not limited to this, and may be, for example, a straight or bent rod-shaped member that spans between the first plate-shaped portion 17bA and the bottom portion 19A.

[0065] (Fifth Modification) A plurality of fourth plate-shaped portions 23aA, 23bA, 24aA, and 24bA may be provided as reinforcing members, as in a support body 75A of a fifth modified example shown in Fig. 9. The fourth plate-shaped portions 23aA, 23bA, 24aA, and 24bA have, for example, the same shape as the fourth plate-shaped portion 23aA of the fourth modified example. The fourth plate-shaped portions 23aA, 23bA, 24aA, and 24bA are arranged on both end sides in the width direction Y. Specifically, the fourth plate-shaped portion 23aA is arranged closer to the second side X2 and at the end of the first side Y1 than the first plate-shaped portion 17bA, and is joined to the first plate-shaped portion 17bA and the bottom 19A, respectively. The fourth plate-shaped portion 23bA is arranged closer to the second side X2 and at the end of the second side Y2 than the first plate-shaped portion 17bA, and is joined to the first plate-shaped portion 17bA and the bottom 19A, respectively. The fourth plate-shaped portion 24aA is arranged closer to the first side X1 and at the end of the first side Y1 than the second plate-shaped portion 18aA, and is joined to the second plate-shaped portion 18aA and the bottom 19A, respectively. The fourth plate-shaped portion 24bA is disposed closer to the first side X1 and the end of the second side Y2 than the second plate-shaped portion 18aA, and is joined to the second plate-shaped portion 18aA and the bottom portion 19A. By configuring the support body 75A of the fifth modified example as described above, the strength of the first plate-shaped portion 17bA and the second plate-shaped portion 18aA can be further increased. The shapes of the fourth plate-shaped portions 23aA, 23bA, 24aA, and 24bA are not limited to these.Furthermore, the fourth plate-shaped portions 23aA, 23bA, 24aA, and 24bA may have different shapes.

[0066] (Sixth Modification) In the facing direction X, the first plate-like body 31 may be disposed on the opposite side (first side X1) of the first wall 27 from the second wall 28, and may be in contact with the first wall 27 from the first side X1 of the first wall 27. By configuring as in this second modified example, the gap between the first wall 27 of the formwork 26 and the first plate-like body 31 can be efficiently sealed.

[0067] The formwork 26 on the first side Y1 or the second side Y2 of the supports 16A, 16B as a whole does not need to be arranged. The ears 19Ap, 19Bp of the supports 16A, 16B do not need to be pressed by part of the bottom wall 29 of the formwork 26A, 26B.

[0068] (Addendum) (1) Aspect 1 of the present disclosure is a support for constructing the foundation of a building, comprising a first clamping portion having a pair of opposing first plate-shaped portions, a second clamping portion having a pair of opposing second plate-shaped portions arranged opposite the first clamping portion, a bottom portion connected to the lower end of the first clamping portion and the lower end of the second clamping portion, respectively, and a reinforcing portion connected to the first clamping portion or the second clamping portion, wherein each of the pair of first plate-shaped portions is connected to the bottom in a position extending upward from the bottom, each of the pair of second plate-shaped portions is connected to the bottom in a position extending upward from the bottom, and the reinforcing portion is connected to the bottom in a position extending upward from the bottom.

[0069] In this disclosure, the strength of the first clamping portion that supports the first plate-like body and the second clamping portion 1 that supports the second plate-like body is increased, so that, for example, the height of the first clamping portion and the second clamping portion can be reduced, and the width of the first clamping portion, the second clamping portion, and the bottom portion can be narrowed, thereby achieving a reduction in weight and cost of the support body.

[0070] (2) A second aspect of the present disclosure may be the support according to (1), in which the reinforcing portion has a pair of opposing third plate-shaped portions. In this disclosure, the strength of the first clamping portion and the second clamping portion can be significantly increased.

[0071] (3) A third aspect of the present disclosure may be the support according to (1) or (2), in which the pair of third plate-shaped portions are provided at approximately the center of the bottom portion. In this disclosure, no uneven load is generated on the first clamping portion or the second clamping portion, and the first clamping portion and the second clamping portion can be supported most efficiently.

[0072] (4) A fourth aspect of the present disclosure may be a support described in any one of (1) to (3), wherein the reinforcing portion comprises a first reinforcing portion connected to the first clamping portion and a second reinforcing portion connected to the second clamping portion. In this disclosure, the first clipping portion and the second clipping portion are each reinforced, so that the entire support body 16A can be made smaller.

[0073] (5) A fifth aspect of the present disclosure may be the support according to any one of (1) to (4), in which the first reinforcing portion and the second reinforcing portion are disposed opposite each other. In this disclosure, a plate-like body formed into a flat plate shape by, for example, an extruded cement board can be sandwiched between the first reinforcing portion and the second reinforcing portion.

[0074] (6) A sixth aspect of the present disclosure may be the support according to any one of (1) to (5), in which the reinforcing portion has one fourth plate-shaped portion. In this disclosure, the strength of the first plate-shaped portion and the second plate-shaped portion can be further increased.

[0075] (7) Aspect 7 of the present disclosure may be a support described in any one of (1) to (6), which has a plurality of the single plate-shaped portions, each of which is arranged on both ends of the bottom portion. In this disclosure, the strength of the first plate-shaped portion and the second plate-shaped portion can be further increased.

[0076] (8) Aspect 8 of the present disclosure may be a support according to any one of (1) to (7), in which the height of the first clip portion is equal to the height of the second clip portion. This disclosure allows the first and second clamping sections to share parts, reducing material and manufacturing costs, and also preventing misplacement of the first and second clamping sections or mixing up parts during manufacturing.

[0077] (9) A ninth aspect of the present disclosure may be a support according to any one of (1) to (8), in which the reinforcing portion is disposed perpendicular to the first clip portion and / or the second clip portion. In this disclosure, the first clip portion and the second clip portion can be supported most efficiently.

[0078] (10) A tenth aspect of the present disclosure is a support structure comprising a support body described in any one of (1) to (9), a first plate-shaped body arranged in the first clamping portion, and a second plate-shaped body arranged in the second clamping portion. In this disclosure, the first clamping portion can support the first plate-shaped body, and the second clamping portion can support the second plate-shaped body.

[0079] (12) Aspect 11 of the present disclosure is a support structure comprising a support described in any one of (1) to (9), a formwork having a first wall, a second wall arranged opposite the first wall, and bottom walls connected to the lower ends of the first wall and the second wall, a first plate-like body arranged in the first clamping section, and a second plate-like body arranged in the second clamping section, wherein the formwork is arranged on both sides of the width direction of the first clamping section relative to the support, so that in the direction in which the pair of first plate-like sections face each other, the first wall side relative to the second wall is the first clamping side relative to the second clamping section.

[0080] In this disclosure, the first plate-shaped body is supported by the first clamping portion, and the second plate-shaped body is supported by the second clamping portion. Then, formwork is arranged on both sides of the support in the width direction, such that, in the direction in which the pair of first plate-shaped bodies face each other, the first wall side of the formwork facing the second wall is the first clamping portion side of the support facing the second clamping portion. This allows the first wall and the first clamping portion, and the second wall and the second clamping portion, to approach each other in the facing directions.

[0081] (12) Aspect 12 of the present disclosure may be a support structure as described in (11), in which a plurality of the supports are arranged in the width direction of the first clamping portion, and the formwork is arranged on both sides of the width direction of the plurality of supports as a whole. In this disclosure, for a plurality of supports arranged in the width direction, a form can be arranged on each side of the supports in the width direction as a whole.

[0082] (13) A thirteenth aspect of the present disclosure may be a support structure according to (11) or (12), in which a portion of the bottom is pressed by a portion of the bottom wall. In this disclosure, a portion of the bottom wall of the formwork can stabilize the position of a portion of the bottom of the support.

[0083] (14) Aspect 14 of the present disclosure may be a support structure described in any one of (11) to (13), in which the height of the first wall is greater than the height of the second wall, and the height of the first plate-like body is greater than the height of the second plate-like body. In this disclosure, the lateral pressure of the concrete can be efficiently withstood by the first wall and the first plate-like body of the formwork.

[0084] (15) Aspect 15 of the present disclosure may be a support structure described in any one of (11) to (14), in which, in the direction in which the pair of first plate-shaped portions face each other, the first plate-shaped body is positioned on the opposite side of the first wall from the second wall and is in contact with the first wall. In this disclosure, the gap between the first wall of the formwork and the first plate-like body can be efficiently sealed.

[0085] (16) Aspect 16 of the present disclosure is a construction method for a support structure, comprising: a support placement step of placing a support described in any one of (1) to (9) on the ground; a form placement step of placing a plurality of formworks having a first wall, a second wall placed opposite the first wall, and bottom walls connected to the lower ends of the first wall and the lower ends of the second wall, on both sides of the width direction of the first clamping portion relative to the support, so that in the opposing direction in which the pair of first plate-shaped portions face each other, the first wall side relative to the second wall is the first clamping portion side relative to the second clamping portion; and a plate-shaped body placement step of placing a first plate-shaped body and a second plate-shaped body on the first clamping portion and the second clamping portion, respectively.

[0086] In this disclosure, in a support arranging step, a support is arranged on the ground. Next, in a formwork arranging step, a plurality of formworks are arranged on both sides of the support in the width direction so that the first wall side relative to the second wall is the first clamping side relative to the second clamping part in the opposing direction. This allows the first wall and the first clamping part, and the second wall and the second clamping part, to approach each other in the opposing direction. Then, in the plate-shaped body arranging step, the first plate-shaped body and the second plate-shaped body can be arranged in the first clamping section and the second clamping section, respectively.

[0087] (17) Aspect 17 of the present disclosure may be a construction method for a support structure described in (16), in which, in the support arrangement step, multiple supports are arranged so that the first clamping portion faces the same direction relative to the second clamping portion, and in the formwork arrangement step, multiple formworks are arranged on both sides of the width direction of the multiple supports as a whole. In this disclosure, in the support arrangement step, the multiple supports are arranged so that the first clamping section side relative to the second clamping section faces the same direction, thereby aligning the orientation of the multiple supports. Then, in the formwork arrangement step, multiple formworks are arranged on both sides of the multiple supports in the width direction, allowing the multiple supports to be sandwiched between the multiple formworks in the width direction.

[0088] (18) Aspect 18 of the present disclosure may be a construction method for a support structure described in (16) or (17), in which the formwork placement step is performed after the support placement step, and in the formwork placement step, a portion of the bottom of at least one of the multiple supports is pressed down with a portion of the bottom wall. In this disclosure, in the formwork placement step, a portion of the bottom of at least one of the plurality of supports can be pressed by a portion of the bottom wall of the formwork to stabilize the position of at least one of the plurality of supports. [Explanation of symbols]

[0089] 15 Formwork structure (support structure) 16A,16B,71A,72A,73A,74A,75A Support 17A, 17B First clamping part 17aA, 17bA, 17aB, 17bB First plate-shaped portion 18A, 18B Second clamping part 18aA, 18bA, 18aB, 18bB Second plate-shaped portion 19A,19B bottom 19Ap,19Bp ear 20A, 20B Reinforcement section 21A, 21B 1st reinforcement part 21aA, 21bA, 21aB, 21bB Third plate-shaped portion 22A, 22B 2nd reinforcement part 22aA, 22bA, 22aB, 22bB Third plate-shaped portion 23aA, 23bA, 24aA, 24bA Fourth plate-shaped portion 26 Formwork 27 1st wall 28 Second wall 29 Bottom Wall 31 First plate-shaped body 36 Second plate-shaped body G4 ground S6 Construction method (construction method of support structure) S10 Support placement step S11 Formwork placement step S12 Plate placement step X Opposite direction (opposite direction) Y width direction Z vertical direction

Claims

1. A support for constructing a foundation for a building, a first clamping portion having a pair of opposing first plate-shaped portions; a second clipping portion having a pair of opposing second plate-shaped portions disposed opposite the first clipping portion; a bottom portion connected to a lower end of the first clip portion and a lower end of the second clip portion; a reinforcing portion capable of reinforcing the first clipping portion or the second clipping portion; Equipped with each of the pair of first plate-shaped portions is connected to the bottom portion in a position extending upward from the bottom portion; each of the pair of second plate-shaped portions is connected to the bottom portion in a position extending upward from the bottom portion; A support body, wherein the reinforcing portion is connected to the first plate-shaped portion of the pair of first plate-shaped portions that is closer to the second clamping portion or the second plate-shaped portion of the pair of second plate-shaped portions that is closer to the first clamping portion, and is arranged to extend upward from the bottom.

2. A support as described in claim 1, wherein the reinforcing portion is joined to the first clamping portion or the second clamping portion and the bottom portion by welding.

3. The support body according to claim 1 , wherein the reinforcing portion has a pair of opposing third plate-shaped portions.

4. The support according to claim 3 , wherein the pair of third plate-shaped portions are provided at approximately the center of the bottom portion.

5. The support body according to claim 1 , wherein the reinforcing portion comprises a first reinforcing portion connected to the first clipping portion and a second reinforcing portion connected to the second clipping portion.

6. The support body according to claim 5 , wherein the first reinforcing portion and the second reinforcing portion are disposed opposite each other.

7. The support body according to claim 1 , wherein the reinforcing portion has one fourth plate-shaped portion.

8. The fourth plate-shaped portion is provided in plural, The support according to claim 7 , wherein each of the plate-shaped portions is disposed on both end sides of the bottom portion.

9. The support of claim 1 , wherein the height of the first clamping portion is equal to the height of the second clamping portion.

10. The support according to claim 1 , wherein the reinforcing portion is arranged perpendicular to the first clip portion and / or the second clip portion.

11. A support according to any one of claims 1 to 10; a first plate-shaped body disposed in the first clamping portion; a second plate-shaped body disposed in the second clamping portion; A support structure comprising:

12. A support according to any one of claims 1 to 10; a formwork having a first wall, a second wall disposed opposite the first wall, and a bottom wall connected to a lower end of the first wall and a lower end of the second wall, respectively; a first plate-shaped body disposed in the first clamping portion; a second plate-shaped body disposed in the second clamping portion; Equipped with A support structure in which the formwork is arranged on both sides of the width direction of the first clamping portion relative to the support body, so that in the direction in which the pair of first plate-shaped portions face each other, the first wall side relative to the second wall is the first clamping portion side relative to the second clamping portion.

13. A plurality of the support members are arranged in the width direction of the first clamping portion, The support structure according to claim 12 , wherein the formwork is disposed on both sides of the plurality of supports as a whole in the width direction.

14. The support structure of claim 12 , wherein a portion of the bottom is held down by a portion of the bottom wall.

15. The height of the first wall is greater than the height of the second wall, The support structure according to claim 12 , wherein the height of the first plate-like body is greater than the height of the second plate-like body.

16. The support structure according to claim 12, wherein in the direction in which the pair of first plate-shaped portions face each other, the first plate-shaped body is positioned on the opposite side of the first wall from the second wall and is in contact with the first wall.

17. a support placement step of placing the support according to any one of claims 1 to 10 on the ground; a form arranging step of arranging a plurality of formworks, each having a first wall, a second wall arranged opposite the first wall, and a bottom wall connected to a lower end of the first wall and a lower end of the second wall, on both sides of the width direction of the first clamping portion relative to the support body, such that the first wall side relative to the second wall is the first clamping portion side relative to the second clamping portion in the opposing direction in which the pair of first plate-like portions oppose each other; a plate-like body arranging step of arranging a first plate-like body and a second plate-like body in the first clamping section and the second clamping section, respectively; A method for constructing a support structure comprising:

18. In the support arranging step, the plurality of supports are arranged such that the first clamping portion side relative to the second clamping portion faces the same direction; The support structure construction method according to claim 17 , wherein in the formwork arranging step, a plurality of the formworks are arranged on both sides of the plurality of supports as a whole in the width direction.

19. The formwork placement step is performed after the support placement step, The support structure construction method according to claim 17 , wherein in the formwork placement step, a portion of the bottom of at least one of the plurality of supports is pressed down by a portion of the bottom wall.

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