Support body, support structure, method for manufacturing the support body, and method for constructing the support structure.

Abstract

The present invention provides a support structure that can be simplified and manufacturing costs reduced. [Solution] A support 16 for constructing the foundation of a building, comprising: a first clamping portion 17 having a pair of opposing first plate-like portions 17a, 17b and a first connecting portion 21 connected to each of the first plate-like portions 17a, 17b; and a second clamping portion 18 having a pair of opposing second plate-like portions 18a, 18b and a second connecting portion 22 connected to each of the second plate-like portions 18a, 18b, wherein the first clamping portion 17 is open on the side opposite to the first connecting portion 21 in the width direction, and the second clamping portion 18 is open on the side opposite to the second connecting portion 22 in the width direction.

Description

Technical Field

[0001] The present disclosure relates to a support, a support structure, a method for manufacturing the support, and a method for constructing the support structure.

Background Art

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

[0003] The first clamping portion has a pair of first plate-like portions for arranging the first plate-like body. The second clamping portion has a pair of second plate-like portions for arranging the second plate-like body. For example, a floor, a door frame, etc. are arranged above the first and second clamping portions.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] There is room for improvement in the support in terms of simplification of the structure, manufacturing cost, etc.

[0006] The present disclosure has been made in view of such problems, and an object thereof is to provide a support, a support structure, a method for manufacturing the support, and a method for constructing the support structure that can achieve simplification of the structure and reduction of manufacturing cost.

Means for Solving the Problems

[0007] This disclosure relates to a support for constructing the foundation of a building, comprising: a first clamping portion having a pair of opposing first plate-like portions and a first connecting portion connected to each of the pair of first plate-like portions; and a second clamping portion having a pair of opposing second plate-like portions and a second connecting portion connected to each of the pair of second plate-like portions, wherein the first clamping portion is open on the side opposite to the first connecting portion in the width direction, and the second clamping portion is open on the side opposite to the second connecting portion in the width direction.

[0008] This disclosure relates to a method for manufacturing a support for constructing the foundation of a building, comprising: a clamping part manufacturing step of processing each of a plurality of plate-shaped members so that they are U-shaped in plan view to produce a first clamping part and a second clamping part having a pair of opposing plate-shaped parts and connecting parts connected to each of the pair of plate-shaped parts; and a connecting step of connecting the first clamping part and the second clamping part.

[0009] This disclosure provides a support structure comprising: a support body; a formwork having a first wall, a second wall positioned opposite the first wall, and bottom walls connected to the lower end of the first wall and the lower end of the second wall, respectively; a first plate-like body and a second plate-like body, wherein the support body is positioned at the longitudinal end of the formwork and clamps the first wall or the second wall with one of the first clamping portion or the second clamping portion, and clamps the first plate-like body or the second plate-like body with the other of the first clamping portion or the second clamping portion.

[0010] This disclosure provides a method for constructing a support structure, comprising: a formwork placement step of placing multiple formworks on the ground at intervals, each having a first wall, a second wall positioned opposite the first wall, and bottom walls connected to the lower ends of the first wall and the second wall, respectively; a support placement step of placing multiple supports of this disclosure on the formwork so that the first wall and the second wall are clamped by one of the first clamping portions or the second clamping portion; and a plate-like body placement step of placing a first plate-like body and a second plate-like body between the formworks so that the first plate-like body and the second plate-like body are clamped by the other of the first clamping portion or the second clamping portion. [Effects of the Invention]

[0011] The present invention provides a support, a support structure, a method for manufacturing the support, and a method for constructing the support structure, which can simplify the structure and reduce manufacturing costs. [Brief explanation of the drawing]

[0012] [Figure 1] This is a plan view of a key part of a building in which a formwork structure according to one embodiment of the present invention is used. [Figure 2] This is a cross-sectional view along the cutting line A1-A1 in Figure 1. [Figure 3] This is a perspective view of the support structure of one embodiment of the present invention. [Figure 4] This is a flowchart showing a method for constructing a formwork structure according to one embodiment of the present invention. [Figure 5] This figure shows a first modified example of the formwork structure of one embodiment of the present invention. [Figure 6] This figure shows a second modified example of the formwork structure of one embodiment of the present invention. [Figure 7] This figure shows a third modified example of the formwork structure according to one embodiment of the present invention. [Figure 8] This figure shows a modified example of the support material of one embodiment of the present invention. [Modes for carrying out the invention]

[0013] Hereinafter, an embodiment of the support, support structure, method for manufacturing the support, and method for constructing the support structure (hereinafter simply referred to as the construction method) according to the present invention will be described with reference to Figures 1 to 8. As shown in Figures 1 and 2, the formwork structure 15 of this embodiment is used in building 1. Note that some components are omitted in Figure 1. Building 1 includes a main column 10, a formwork structure 15, a floor 55, and a door structure 60. Here, the formwork structure 15 is the foundation of the building 1. Here, an outer contour line L1 of the formwork structure 15 in plan view is defined. In plan view, the direction from the inside to the outside of the outer contour line L1 (building 1, formwork structure 15) is defined as the outer side D1, and the direction from the outside to the inside of the outer contour line L1 is defined as the inner side D2.

[0014] Corresponding to the shape of the formwork structure 15 (outer contour line L1) shown in FIG. 1, as shown in FIG. 2, a depression G2 is formed in the ground G1. A plurality of foundations (not shown) are buried at intervals along the depression G2 on the bottom surface of the depression G2. For example, the foundation is formed in a cylindrical shape with concrete. For example, the main column 10 is composed of H-shaped steel. The main column 10 extends upward from the foundation. As shown in FIGS. 1 and 2, the formwork structure 15 has a plurality of supports 16, a plurality of formworks 26, a first plate-like body 31, a second plate-like body 36, and a beam 46. In this embodiment, it has four supports 16 (supports 16A1, 16A2, 16B1, 16B2). In the formwork structure 15, when the distance between the plurality of formworks 26 is short, it is difficult to apply with a conventional support. The support 16 can be applied even when the distance between the formworks 26 is short.

[0015] (Support) As shown in FIG. 3, in plan view, the configurations of the support 16A1 and the support 16A2 are the same. The support 16A1 and the support 16A2 are arranged opposite (in parallel) in the opposing direction X. The configurations of the support 16B1 and the support 16B2 are the same. The support 16B1 and the support 16B2 are arranged opposite (in parallel) in the opposing direction X. The support 16A1 and the support 16B1 are arranged on the first side X1 of the opposing direction X (hereinafter, simply referred to as the first side X1). The support 16A2 and the support 16B2 are arranged on the second side X2 of the opposing direction X (hereinafter, simply referred to as the second side X2).

[0016] Also, as shown in FIG. 3, the configurations of the supports 16A1 and 16A2 and the configurations of the supports 16B1 and 16B2 are the same and are arranged symmetrically with respect to the reference plane S1. The support 16A1 and the support 16B1 are arranged to face each other (symmetrically arranged) in the width direction Y. The support 16A2 and the support 16B2 are arranged to face each other (symmetrically arranged) in the width direction Y. The supports 16A1 and 16A2 are arranged on the second side Y2 of the width direction B (hereinafter simply referred to as the second side Y2). The supports 16B1 and 16B2 are arranged on the first side Y1 of the width direction Y (hereinafter simply referred to as the first side Y1). Thus, the supports 16A1, 16A2, 16B1, and 16B2 have the same configuration. Hereinafter, the configuration of the support 16A1 will be described.

[0017] The support 16A1 is for constructing the foundation of a building and has a first clamping portion 17 and a second clamping portion 18. The first clamping portion 17 has a pair of first plate-like portions 17a and 17b facing each other in the facing direction X and a first connecting portion 21 connected to each of the pair of first plate-like portions 17a and 17b. The second clamping portion 18 has a pair of second plate-like portions 18a and 18b facing each other in the facing direction X and a second connecting portion 22 connected to each of the pair of second plate-like portions 18a and 18b.

[0018] The first plate-like portions 17a and 17b, the second plate-like portions 18a and 18b, the first connecting portion 21, and the second connecting portion 22 are each formed in a flat plate shape. In this example, the first plate-like portions 17a and 17b, the second plate-like portions 18a and 18b, the first connecting portion 21, and the second connecting portion 22 each exhibit a rectangular shape when viewed in their respective thickness directions. Note that the shapes of the first plate-like portions 17a and 17b, the second plate-like portions 18a and 18b, the first connecting portion 21, and the second connecting portion 22 are not limited to this. For example, the first plate-like portions 17a and 17b, the second plate-like portions 18a and 18b, the first connecting portion 21, and the second connecting portion 22 are formed of steel plates.

[0019] The first plate-like portions 17a and 17b of the first clamping portion 17 extend upward from below on the first side X1 in the opposing direction X. The first plate-like portion 17a is positioned further to the first side X1 than the first plate-like portion 17b. A gap is formed between the first plate-like portion 17a and the first plate-like portion 17b. The first connecting portion 21 is connected to the pair of first plate-like portions 17a and 17b on the first side Y1 in the width direction Y. The first connecting portion 21 is connected to the pair of first plate-like portions 17a and 17b in a position that extends upward from below.

[0020] The second plate-like portions 18a and 18b of the second clamping portion 18 extend upward from below at the end of the second side X2. The second plate-like portion 18a is positioned further to the first side X1 than the second plate-like portion 18b. A gap is formed between the second plate-like portion 18a and the second plate-like portion 18b. The second connecting portion 22 is connected to the end of the pair of second plate-like portions 18a and 18b on the second side Y2 in the width direction Y. The second connecting portion 22 is connected to the pair of second plate-like portions 18a and 18b in a position that extends upward from below.

[0021] Of the first plate-like parts 17a and 17b, the first plate-like part 17a is the one that is further from the second clamping part 18. The first plate-like part 17b is the one that is closer to the second clamping part 18. The height of the first plate-like part 17a is equal to the height of the first plate-like part 17b. Here, the height of the first plate-like parts 17a and 17b refers to the length of the first plate-like parts 17a and 17b in the vertical direction Z. The height of the first plate-like portion 17a may be higher than the height of the first plate-like portion 17b, or lower than the height of the second plate-like portion 18b.

[0022] Of the second plate-like parts 18a and 18b, the second plate-like part 18a is the one closer to the first clamping part 17. The second plate-like part 18b is the one further away from the first clamping part 17. The height of the second plate-like part 18a is equal to the height of the second plate-like part 18b. Here, the height of the second plate-like parts 18a and 18b refers to the length of the second plate-like parts 18a and 18b in the vertical direction Z. The height of the second plate-like portion 18a may be higher than or lower than the height of the second plate-like portion 18b.

[0023] The height of the first clamping portion 17 is equal to the height of the second clamping portion 18. Here, the height of the first clamping portion 17 refers to the length in the vertical direction Z of the higher (not lower) of the multiple first plate-like portions 17a and 17b that the first clamping portion 17 has. The height of the second clamping portion 18 is the same as the height of the first clamping portion 17. The height of the first clamping portion 17 may be different from the height of the second clamping portion 18. The height of the first clamping portion 17 may be higher than the height of the second clamping portion 18, or lower than the height of the second clamping portion 18.

[0024] The width of the first clamping portion 17 is longer (larger, wider) than the width of the second clamping portion 18. Here, the width of the first clamping portion 17 refers to the length in the width direction Y of the entire first plate-like portions 17a and 17b of the first clamping portion 17 (the length in the width direction Y of the entire shape obtained by projecting the first plate-like portions 17a and 17b in the opposing direction X). The width of the second clamping portion 18 is the same as the width of the first clamping portion 17. The widths of the first clamping portion 17 and the second clamping portion 18 may be equal. The width of the first clamping portion 17 may be shorter (smaller, narrower) than the width of the second clamping portion 18.

[0025] The width of the first plate-like portion 17a and the width of the first plate-like portion 17b are equal. The width of the second plate-like portion 18a and the width of the second plate-like portion 18b are equal. The widths of the first plate-like portion 17a and the first plate-like portion 17b may be different from each other. The width of the first plate-like portion 17a may be longer (larger, wider) than the width of the first plate-like portion 17b, or shorter (smaller, narrower) than the width of the first plate-like portion 17b. The widths of the second plate-like portion 18a and the second plate-like portion 18b may be different from each other. The width of the second plate-like portion 18a may be longer (larger, wider) than the width of the second plate-like portion 18b, or shorter (smaller, narrower) than the width of the second plate-like portion 18b.

[0026] In the width direction Y, the positions of the first plate-like portion 17a and the first plate-like portion 17b at their first ends Y1 coincide. The positions of the second ends Y2 of the first plate-like portion 17a and the first plate-like portion 17b also coincide. In the width direction Y, the positions of the ends of the first side Y1 of the second plate-like portion 18a and the second plate-like portion 18b coincide. The positions of the ends of the second side Y2 of the second plate-like portion 18a and the second plate-like portion 18b also coincide.

[0027] The position of the first clamping portion 17 as a whole in the width direction Y is different from the position of the second clamping portion 18 as a whole in the width direction Y. The first clamping portion 17 is positioned second to the side Y2 than the second clamping portion 18. When the first clamping portion 17 and the second clamping portion 18 are viewed from opposite directions X, the first clamping portion 17 and the second clamping portion 18 largely overlap, with a part of the first clamping portion 17 protruding second to the side Y2 than the second clamping portion 18, and a part of the second clamping portion 18 protruding first to the side Y1 than the first clamping portion 17.

[0028] The vertical position Z of the first clamping portion 17 as a whole and the vertical position Z of the second clamping portion 18 as a whole coincide. Note that the vertical position Z of the first clamping portion 17 as a whole and the vertical position Z of the second clamping portion 18 as a whole may be different. The vertical position Z of the first clamping portion 17 as a whole may be higher on the first side Z1 or higher on the second side Z2 than the vertical position Z of the second clamping portion 18 as a whole.

[0029] The first connecting portion 21 is connected to a pair of first plate-like portions 17a and 17b, respectively. The first connecting portion 21 is positioned on the first side Y1 of the pair of first plate-like portions 17a and 17b. When viewed from above, the entire first clamping portion 17 has a U-shape. That is, the first plate-like portion 17a, the first plate-like portion 17b, and the first connecting portion 21 are connected in a U-shape. The second side Y2 in the width direction Y of the first clamping portion 17 (opposite side from the first connecting portion 21) is open. The first side Z1 and the second side Z2 in the vertical direction Z of the first clamping portion 17 are also open.

[0030] The height of the first connecting portion 21 is equal to the height of the first plate-like portions 17a and 17b. Here, the height of the first connecting portion 21 refers to the length of the first connecting portion 21 in the vertical direction Z. The first side Z1 end of the first connecting portion 21 in the vertical Z direction coincides with the first side Z1 end of the first plate-like portions 17a and 17b. The second side Z2 end of the first connecting portion 21 in the vertical Z direction coincides with the second side Z2 end of the first plate-like portions 17a and 17b. The height of the first connecting portion 21 may differ from the height of the first plate-like portions 17a and 17b. The height of the first connecting portion 21 may be higher than the height of the first plate-like portions 17a and 17b, or lower than the height of the first plate-like portions 17a and 17b.

[0031] The second connecting portion 22 is connected to a pair of second plate-like portions 18a and 18b, respectively. The second connecting portion 22 is positioned on the second side Y2 of the pair of second plate-like portions 18a and 18b. When viewed from above, the entire second clamping portion 18 has a U-shape. That is, the second plate-like portion 18a, the second plate-like portion 18b, and the second connecting portion 22 are connected in a U-shape. The first side Y1 in the width direction Y of the second clamping portion 18 (opposite side from the second connecting portion 22) is open. The first side Z1 and the second side Z2 in the vertical direction Z of the second clamping portion 18 are also open.

[0032] The height of the second connecting portion 22 is equal to the height of the second plate-like portions 18a and 18b. Here, the height of the second connecting portion 22 refers to the length of the second connecting portion 22 in the vertical direction Z. The first side Z1 end of the second connecting portion 22 in the vertical Z direction coincides with the first side Z1 end of the second plate-like portions 18a and 18b. The second side Z2 end of the second connecting portion 22 in the vertical Z direction coincides with the second side Z2 end of the second plate-like portions 18a and 18b. The height of the first connecting portion 21 may differ from the height of the second plate-like portions 18a and 18b. The height of the second connecting portion 22 may be higher than the height of the second plate-like portions 18a and 18b, or lower than the height of the second plate-like portions 18a and 18b.

[0033] The width of the first connecting portion 21 matches the width of the gap formed between the first plate-like portion 17a and the first plate-like portion 17b. The width of the first connecting portion 21 matches the width of the gap formed between the second plate-like portion 18a and the second plate-like portion 18b. The width of the first connecting portion 21 is greater than (larger than) the width of the second connecting portion 22. The width of the gap formed between the first plate-like portion 17a and the first plate-like portion 17b is greater than (larger than) the width of the gap formed between the second plate-like portion 18a and the second plate-like portion 18b. The width of the first connecting portion 21 may be equal to the width of the first connecting portion 21, or it may be shorter (smaller, narrower) than the width of the first connecting portion 21.

[0034] The positions of the first connecting portion 21 and the second connecting portion 22 in the width direction Y are different. The first connecting portion 21 is positioned on the first side Y1 than the second connecting portion 22. The first clamping portion 17 is open on the second side Y2 opposite to the first connecting portion 21. The second clamping portion 18 is open on the first side Y1 opposite to the second connecting portion 22. In other words, the first clamping portion 17 and the second clamping portion 18 are open in opposite directions (backwards) in the width direction Y.

[0035] The first clamping portion 17 and the second clamping portion 18 are positioned in close contact in the opposing direction X. In the opposing direction X, the first clamping portion 17 is positioned on the first side X1, and the second clamping portion 18 is positioned on the second side X2. In the first clamping portion 17, the first plate-shaped portion 17b positioned on the second side X2 and the second plate-shaped portion 18a positioned on the first side X1 in the second clamping portion 18 are in close contact in the opposing direction X such that parts of each overlap.

[0036] (Method for preparing the support) The first clamping portion 17 and the second clamping portion 18 are each formed by processing a plate-like member so that it has a U-shape when viewed from above (clamping portion manufacturing process). The first clamping portion 17 is formed by bending the first connecting portion 21 at approximately right angles on both sides in the direction X opposite to the first connecting portion 21, with the first connecting portion 21 as the center. In other words, the first plate-like portions 17a and 17b are bent so that they intersect the first connecting portion 21 at approximately right angles. The second clamping portion 18 is formed by bending both sides (second plate-like portions 18a and 18b) in the opposing direction X of the second connecting portion 22 at approximately a right angle, with the second connecting portion 22 as the center. In other words, the second plate-like portions 18a and 18b are bent so that they intersect the second connecting portion 22 at approximately a right angle.

[0037] For example, the first clamping portion 17 and the second clamping portion 18 are joined to each other by welding (connection process). The first plate-like portion 17b, which is positioned on the second side X2 of the first clamping portion 17, and the second plate-like portion 18a, which is positioned on the first side X1 of the second clamping portion 18, are joined to each other by welding.

[0038] (Support structure) As shown in Figures 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 have a rectangular shape when viewed in their respective thickness directions. For example, the first wall 27, the second wall 28, and the bottom wall 29 are made of reinforced concrete. The first wall 27 and the second wall 28 are wall plates (so-called earth-retaining plates) that support soil and sand. The soil and sand include one or more of the following: soil, sand, and gravel.

[0039] The bottom wall 29 is positioned such that its thickness direction aligns with the vertical direction Z. The second wall 28 is positioned opposite the first wall 27 in the opposing 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 in the base wall 29. The second wall 28 extends upward from the end of the second side X2 in the base 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 as shown in Figure 2. However, the shape of the formwork is not limited to this. The height of the first wall 27 may be equal to the height of the second wall 28, or it may be lower than the height of the second wall 28.

[0040] As shown in Figure 1, the formwork structure (support structure) 15 has a plurality of support members 16 arranged in the opposing direction X and the width direction Y, respectively. In this embodiment, the support member 16 has four support members 16A1, 16A2, 16B1, and 16B2 of the same shape. Supports 16A1 and 16A2 are arranged in opposite directions. Supports 16B1 and 16B2 are arranged in opposite directions. Supports 16A1 and 16B1 are arranged in the width direction Y. Supports 16A2 and 16B2 are arranged in the width direction Y. Supports 16A1, 16A2, 16B1, and 16B2 are positioned at the ends of the formwork 26 in the longitudinal direction (width direction Y). The formwork 26 is positioned on the second side Y2 in the width direction Y of supports 16A1 and 16A2. The formwork 26 is positioned on the first side Y1 in the width direction Y of supports 16B1 and 16B2.

[0041] Here, among the multiple formwork 26, the formwork 26 positioned on the second side Y2 of the support 16A1, 16A2, 16B1, 16B2 is also called formwork 26A. Among the multiple formwork 26, the formwork 26 positioned on the first side Y1 of the support 16A1, 16A2, 16B1, 16B2 is also called formwork 26B. Furthermore, among the multiple support members 16, those that clamp the first wall 27 of the formwork 26 are also called first support members 16A1 and 16B1. Among the multiple support members 16, those that clamp the second wall 28 of the formwork 26 are also called second support members 16A2 and 16B2.

[0042] As shown in Figure 1, in the opposing direction X, the supports 16A1, 16A2, 16B1, and 16B2 are arranged such that the first clamping portion 17 is on the first side X1 and the second clamping portion 18 is on the second side X2. In the width direction Y, the supports 16A1 and 16A2 are arranged such that the first clamping portion 17 is on the first side Y1 and the second clamping portion 18 is on the second side Y2. The supports 16B1 and 16B2 are arranged such that the first clamping portion 17 is on the second side Y2 and the second clamping portion 18 is on the first side Y1.

[0043] The first wall 27 of the formwork 26A is positioned in the first clamping portion 17 of the support 16A1. More specifically, the first wall 27 of the formwork 26A is inserted between the first plate-like portion 17a and the first plate-like portion 17b of the support 16A1 (in the gap). The second wall 28 of the formwork 26A is positioned on the first clamping portion 17 of the support 16A2. More specifically, the second wall 28 of the formwork 26A is inserted between the first plate-like portion 17a and the first plate-like portion 17b of the support 16A2 (in the gap). The first wall 27 of the formwork 26B is positioned on the first clamping portion 17 of the support 16B1. More specifically, the first wall 27 of the formwork 26B is inserted between the first plate-like portion 17a and the first plate-like portion 17b of the support 16B1 (in the gap). The second wall 28 of the formwork 26B is positioned on the first clamping portion 17 of the support 16B2. More specifically, the second wall 28 of the formwork 26A is inserted between the first plate-like portion 17a and the first plate-like portion 17b of the support 16B2 (in the gap).

[0044] The first plate-like body 31 and the second plate-like body 36 are formed in a flat plate shape, for example, by extruded cement board. The first plate-like body 31 and the second plate-like body 36 are wall plates (so-called earth retaining plates) that support soil and sand. The first plate-like body 31 is arranged such that its thickness direction is aligned with the opposing direction X. As shown in Figure 2, the first plate-like body 31 has a plurality of through holes 32 that penetrate through the first plate-like body 31 in the width direction Y. The plurality of through holes 32 are spaced apart from each other in the vertical direction Z. The second plate-like body 36 is constructed 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.

[0045] The height of the first plate-like body 31 is greater than the height of the second plate-like body 36. The first plate-like body 31 is positioned in the second clamping portion 18 of the supports 16A1 and 16B1. More specifically, the first plate-like body 31 is positioned in the space between the second plate-like portion 18a and the second plate-like portion 18b of the support 16A1, and in the space between the second plate-like portion 18a and the second plate-like portion 18b of the support 16B1. The second plate-like body 36 is positioned in the second clamping portion 18 of the supports 16A2 and 16B2. More specifically, the second plate-like body 36 is positioned in the space between the second plate-like portion 18a and the second plate-like portion 18b in support 16A, and in the space between the second plate-like portion 18a and the second plate-like portion 18b in support 16B.

[0046] The height of the first plate-like body 31 is greater than the height of the first clamping portion 17. The height of the second plate-like body 36 is greater than the height of the second clamping portion 18. As shown in Figure 1, the length in the width direction Y of the first plate-like body 31 is equal to (or equivalent to) the distance between formwork 26A and formwork 26B. The first plate-like body 31 is positioned between formwork 26A and 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 surface of the first wall 27 of the multiple formwork 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 formwork 26A and formwork 26B. The second plate-like body 36 is positioned on the second side X2 (opposite side from the first wall 27) of the second wall 28. The end of the second plate-like body 36 in the width direction Y is in contact with the second wall 28 of formwork 26A and 26B from the second side X2 of the second wall 28.

[0047] The first plate-like body 31 and the second plate-like body 36 support the soil and sand, and prevent the backfill soil from entering the inside of the formwork 26. The first plate-like body 31 and the second plate-like body 36 are preferably flat plates, but are not limited to this. Furthermore, while extruded hollow cement boards have been given as examples for the first plate-like body 31 and the second plate-like body 36, are not limited to this.

[0048] As shown in Figure 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 the accessory member mounting structure 42.

[0049] The fitting 39 has an L-shape when viewed in the width direction Y. The 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-like body 31 from above. The second piece 39b protrudes downward from the end of the second side X2 of the first piece 39a. The second piece 39b is in contact with the surface of the first plate-like body 31 that faces the second side X2, from the second side X2 of this surface. The fitting 39, having a first piece 39a and a second piece 39b, is made of a steel plate or the like. For example, the fitting 39 extends along the entire length of the first plate-like body 31 in the width direction Y (see Figure 1).

[0050] The fixing member 40 has a Z-shape when viewed from 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 portion 40a is in contact with the second piece 39b of the metal fitting 39 from the second side X2 of the second piece 39b. The first arm portion 40a and the first plate-like body 31 sandwich the second piece 39b in the opposing direction X. The second arm portion 40b protrudes downward from the first side X1 at the lower end of the first arm portion 40a. The second arm portion 40b has a communication hole (not shown) that penetrates in the opposing direction X. The second arm portion 40b is in contact with the surface of the first plate-like body 31 facing the second side X2, from the second side X2 of this surface. Multiple (two in this embodiment) fixing members 40 are arranged at both ends of the first plate-like body 31 in the width direction Y.

[0051] The fastening member 41 includes a nut 41a and a bolt 41b. The nut 41a is positioned within the through hole 32 of the first plate-like body 31. The head (not shown in the reference numeral) of the bolt 41b is in contact with the surface of the second arm portion 40b of the fixing member 40 that faces the second side X2, from the second side X2 of this surface. The shaft (not shown in the reference numeral) of the bolt 41b is fitted into the nut 41a through the communication hole of the fixing member 40 and the communication hole (not shown in the reference numeral) 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 opposing directions X. The number of fixing members 40 and fastening members 41 provided by the accessory mounting structure 42 is not limited.

[0052] For example, beam 46 is made of H-shaped steel. That is, beam 46 has a pair of flanges 47, 48 and webs 49 joined to flanges 47, 48, respectively. Flange 47 is positioned above flange 48. Beam 46 extends in the width direction Y along the horizontal plane. The end of the beam 46 in the width direction Y is joined to the main column 10. In the opposing direction X, the beam 46 is positioned between the first wall 27 and the second wall 28 of the formwork 26, between support 16A1 and support 16A2, and between support 16B1 and support 16B2. The beam 46 is positioned above the bottom wall 29 of the formwork 26 and below the upper end of the first wall 27 of the formwork 26.

[0053] The floor 55 is made of concrete, wood, etc. The floor 55 is above the second plate-like body 36 and is cast in such a way that it embeds the beam 46. In this example, the upper surface 55a of the floor 55 is positioned above the upper surface of the first piece 39a of the metal fitting 39.

[0054] The door structure 60 includes a door frame 61 and a door body 62. The door frame 61 is formed in the shape of a picture frame. The door frame 61 is positioned above the fittings 39 and is fixed to the fittings 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 that it can be opened and closed.

[0055] (Construction method S (Construction method for support structure)) Figure 4 is a flowchart showing construction method S. Next, the construction method S for constructing the formwork structure 15 configured as described above will be explained, with an emphasis on the construction of the support members 16A1, 16A2, 16B1, 16B2, formwork 26A, 26B, the first plate-like body 31, and the second plate-like body 36.

[0056] First, in the formwork placement step S10, multiple formwork 26 are placed on the ground G4 (the bottom surface of the depression G2) as shown in Figure 1. Specifically, two formwork 26A and 26B are placed in series with a gap between them in the width direction Y. Once the formwork placement step S10 is completed, the process moves on to step S11.

[0057] Next, in the support placement step S11, as shown in Figure 2, the supports 16A1, 16A2, 16B1, and 16B2 are placed in the two molds 26A and 26, respectively. At this time, support 16A1 is placed on the first wall 27 of formwork 26A, and support 16A2 is placed on the second wall 28. Support 16B1 is placed on the first wall 27 of formwork 26B, and support 16B2 is placed on the second wall 28. In other words, support 16A1 and support 16B1 are placed on the first side X1. Support 16A2 and support 16B2 are placed on the second side X2. Support 16A1 and support 16A2 are placed in parallel in the opposing direction X. Support 16B1 and support 16B2 are placed in parallel in the opposing direction X. Also, support 16A1 and support 16A2 are placed on the second side Y2. Support 16B1 and support 16B2 are placed on the first side Y1. Support 16A1 and support 16B1 are placed symmetrically in the width direction Y. Support 16A2 and support 16B2 are placed symmetrically in the width direction Y. As a result, in the opposing direction X, the supports 16A1, 16A2, 16B1, and 16B2 are arranged such that the first clamping portion 17 is on the first side X1 and the second clamping portion 18 is on the second side X2. In the width direction Y, the supports 16A1 and 16A2 are arranged such that the first clamping portion 17 is on the first side Y1 and the second clamping portion 18 is on the second side Y2. The supports 16B1 and 16B2 are arranged such that the first clamping portion 17 is on the second side Y2 and the second clamping portion 18 is on the first side Y1.

[0058] Then, the first clamping portions 17 of the support members 16A1, 16A2, 16B1, and 16B2 clamp the first wall 27 and the second wall 28 of the formwork 26A and 26. Specifically, the first wall 27 of formwork 26A is clamped by the first clamping portion 17 of support 16A1. The first wall 27 of formwork 26A is positioned between the first plate-like portion 17a and the first plate-like portion 17b of support 16A1 (in a gap). The second wall 28 of formwork 26A is clamped by the first clamping portion 17 of support 16A2. The second wall 28 of formwork 26A is positioned between the first plate-like portion 17a and the first plate-like portion 17b of support 16A2 (in a gap). The first wall 27 of formwork 26B is clamped by the first clamping portion 17 of support 16B1. The first wall 27 of formwork 26B is positioned between the first plate-like portion 17a and the first plate-like portion 17b of support 16B1 (in a gap). The second wall 28 of the formwork 26B is clamped by the first clamping portion 17 of the support 16B2. The second wall 28 of the formwork 26A is positioned between the first plate-like portion 17a and the first plate-like portion 17b of the support 16B2 (in the gap). The support arrangement step S11 is performed after the formwork arrangement step S10. Once the support placement step S11 is completed, the process moves on to step S12.

[0059] Next, in the plate-like body placement step S12, the first plate-like body 31 and the second plate-like body 36 are placed on the ground G4 (the bottom surface of the depression G2). Specifically, the first plate-like body 31 and the second plate-like body 36 are placed between the two formworks 26A and 26B. At this time, the first plate-like body 31 is clamped between the second clamping portions 18 of the supports 16A1 and 16B1. Specifically, the first plate-like body 31 is placed in the gap between the second plate-like portion 18a and the second plate-like portion 18b of the support 16A1, and in the gap between the second plate-like portion 18a and the second plate-like portion 18b of the support 16B1. The second plate-like body 36 is clamped between the second clamping portions 18 of the supports 16A2 and 16B2. The second plate-like body 36 is placed in the gap between the second plate-like portion 18a and the second plate-like portion 18b of the support 16A, and in the gap between the second plate-like portion 18a and the second plate-like portion 18b of the support 16B.

[0060] As a result, the first support members 16A1 and 16B1 position the first plate-like body 31 in a direction approaching the second wall 28 with respect to the first wall 27. The second support members 16A2 and 16B2 position the second plate-like body 36 in a direction away from the first wall 27 with respect to the second wall 28. The plate-like body placement step S12 is performed after the support body placement step S11. Once the plate-like body placement step S12 is completed, all steps of the construction method S are finished, and the formwork structure 15 is constructed.

[0061] As described above, the support 16 of this embodiment includes a first clamping portion 17 having a pair of opposing first plate-like portions 17a, 17b and a first connecting portion 21 connected to each of the first plate-like portions 17a, 17b, and a second clamping portion 18 having a pair of opposing second plate-like portions 18a, 18b and a second connecting portion 22 connected to each of the second plate-like portions 18a, 18b. The first clamping portion 17 is open on the side opposite to the first connecting portion 21 in the width direction, and the second clamping portion 18 is open on the side opposite to the second connecting portion 22 in the width direction. As a result, the support 16 has its first and second clamping portions open in the width direction, allowing it to support the first wall 27, the second wall 28, the first plate-like body 31, and the second plate-like body 36 from the side. Furthermore, since the support 16 consists only of the first clamping portion 17 and the second clamping portion 18, the structure can be simplified, and manufacturing costs can be reduced. Furthermore, since the support 16 clamps the first wall 27, the second wall 28, the first plate-like body 31, and the second plate-like body 36 from the side, there is no need to install the support 16 on the ground, and it can be installed at any position (height) in the vertical direction Z. In addition, the support 16 can be applied even when the distance between the formwork 26A and 26B is short. Furthermore, the support 16 can be used by reversing it in all directions: the opposing direction X, the width direction Y, and the vertical direction Z. Therefore, it can be efficiently attached to the first wall 27, the second wall 28, the first plate-like body 31, and the second plate-like body 36.

[0062] The method for manufacturing the support 16 of this embodiment includes a clamping portion manufacturing step in which each of a plurality of plate-shaped members is processed to form a U-shape in plan view to create a first clamping portion 17 and a second clamping portion 18, each having a pair of opposing first plate-shaped portions 17a, 17b and second plate-shaped portions 18a, 18b, and a first connecting portion 21 and a first connecting portion 22 connected to the first plate-shaped portions 17a, 17b and second plate-shaped portions 18a, 18b, respectively. Subsequently, the method includes a connecting step in which the first clamping portion 17 and the second clamping portion 18 are connected. This allows the first clamping portion 17 and the second clamping portion 18 to be manufactured simply by bending a plate-shaped member into a U-shape in plan view. Furthermore, the support body 16 can be assembled simply by connecting the first clamping portion 17 and the second clamping portion 18. Therefore, the manufacturing efficiency of the support body 16 can be improved, and manufacturing costs can be reduced.

[0063] The formwork structure (support structure) 15 of this embodiment includes a support 16, a formwork 26 having a first wall 27, a second wall 28 positioned opposite the first wall 27, and bottom walls 29 connected to the lower end of the first wall 27 and the lower end of the second wall, respectively, and a first plate-like body 31 and a second plate-like body 36. The support 16 is positioned at the longitudinal end of the formwork 26 and clamps the first plate-like body 31 and the second plate-like body 36 with one of the first clamping portion 17 or the second clamping portion 18, and clamps the first wall 27 or the second wall 28 with the other of the first clamping portion 17 or the second clamping portion 18. As a result, the support 16 can reliably support the first wall 27, the second wall 28, and the first plate-like body 31 and the second plate-like body 36.

[0064] In the construction method of this embodiment, in the formwork placement step S10, multiple formworks 26A and 26B, each having a first wall 27, a second wall 28 positioned opposite the first wall 27, and bottom walls 29 connected to the lower ends of the first wall 27 and the second wall 28 respectively, are placed at intervals on the ground G4. Next, in the support placement step S11, the support 16 is placed on the formworks 26A and 26B respectively, and the first wall 27 and the second wall 28 are clamped by one of the first clamping parts 17 or the second clamping part 18. Next, in the plate-like body placement step S13, the first plate-like body 31 and the second plate-like body 36 are placed between the formworks 26A and 26B, and the first plate-like body 31 and the second plate-like body 36 are clamped by one of the first clamping parts 17 or the second clamping part 18. This allows the first wall 27, the second wall 28, the first plate-like body 31, and the second plate-like body 36 to be supported by multiple support members 16.

[0065] 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 modifications, combinations, deletions, etc., of the configuration are also included without departing from the spirit of the present invention.

[0066] The first plate-shaped portion 17b of the first clamping portion 17 and the second plate-shaped portion 18a of the second clamping portion 18 are connected (welded), but are not limited to this. It is sufficient if either one of the pair of first plate-shaped portions 17a, 17b is connected (welded) to either one of the pair of second plate-shaped portions 18a, 18b. It is sufficient if the first plate-shaped portions 17a, 17b and the second plate-shaped portions 18a, 18b are connected (welded) to each other.

[0067] The first clamping portion 17 clamps the first wall 27 or the second wall 28, and the second clamping portion 18 clamps the first plate-like body 31 or the second plate-like body 36, but is not limited to this. The first wall 27 or the second wall 28 is clamped by either the first clamping portion 17 or the second clamping portion 18. The first plate-like body 31 or the second plate-like body 36 can be clamped with the other of the first clamping portion 17 or the second clamping portion 18.

[0068] (First modified example of formwork structure) Figure 5 shows a first modified example of the formwork structure according to one embodiment of the present invention. As shown in the first modified example in Figure 5, the first plate-like body 31 is placed on the first side X1 of the first wall 27 of the formwork 26A and 26B in the X direction. The surface of the first plate-like body 31 facing the second side X2 is in contact with the surface of the first wall 27 of the formwork 26A and 26B facing the first side X1. The second plate-like body 36 is placed on the second side X2 of the second wall 28 of the formwork 26A and 26B. The surface of the second plate-like body 36 facing the first side X1 is in contact with the surface of the second wall 28 of the formwork 26A and 26B facing the second side X2. In this case, in the opposing direction X, the supports 16A1 and 16B1 are arranged such that the first clamping portion 17 becomes the second side X2 and the second clamping portion 18 becomes the first side X1. On the other hand, the supports 16A2 and 16B2 are arranged such that the first clamping portion 17 becomes the first side X1 and the second clamping portion 18 becomes the second side X2.

[0069] As a result, the first support members 16A1 and 16B1 position the first plate-like body 31 in a direction away from the second wall 28 with respect to the first wall 27. The second support members 16A2 and 16B2 position the second plate-like body 36 in a direction away from the first wall 27 with respect to the second wall 28. By configuring the formwork structure as in this first modified example, the space between the formwork 26A, 26B and the first plate-like body 31 and the second plate-like body 36 can be efficiently sealed.

[0070] (Second modified formwork structure) Figure 6 shows a second modified example of the formwork structure according to one embodiment of the present invention. As shown in the second modified example in Figure 6, in the X direction, the first plate-like body 31 is positioned on the second side X2 of the first wall 27 of the formwork 26A and 26B. The surface of the first plate-like body 31 facing the first side X1 is substantially flush with the surface of the first wall 27 of the formwork 26A and 26B facing the second side X2. The second plate-like body 36 is positioned on the first side X1 of the second wall 28 of the formwork 26A and 26B. The surface of the second plate-like body 36 facing the second side X2 is substantially flush with the surface of the second wall 28 of the formwork 26A and 26B facing the first side X1. In this case, in the opposing direction X, the supports 16A1 and 16B1 are arranged such that the first clamping portion 17 is on the first side X1 and the second clamping portion 18 is on the second side X2. On the other hand, the supports 16A2 and 16B2 are arranged such that the first clamping portion 17 is on the second side X2 and the second clamping portion 18 is on the first side X1.

[0071] As a result, the first support members 16A1 and 16B1 position the first plate-like body 31 in a direction approaching the second wall 28 with respect to the first wall 27. The second support members 16A2 and 16B2 position the second plate-like body 36 in a direction approaching the first wall 27 with respect to the second wall 28. By configuring the formwork structure as in this second modified example, the space between the formwork 26A, 26B and the first plate-like body 31 and the second plate-like body 36 can be efficiently sealed.

[0072] (Third modified formwork structure) Figure 7 shows a third modified example of the formwork structure according to one embodiment of the present invention. As shown in the third modified example in Figure 7, the first plate-like body 31 is placed on the first side X1 of the first wall 27 of the formwork 26A and 26B in the X direction. The surface of the first plate-like body 31 facing the second side X2 is in contact with the surface of the first wall 27 of the formwork 26A and 26B facing the first side X1. The second plate-like body 36 is placed on the first side X1 of the second wall 28 of the formwork 26A and 26B. The surface of the second plate-like body 36 facing the second side X2 is substantially flush with the surface of the second wall 28 of the formwork 26A and 26B facing the first side X1. In this case, in the opposing direction X, the supports 16A1 and 16B1 are arranged such that the first clamping portion 17 becomes the second side X2 and the second clamping portion 18 becomes the first side X1. Similarly, the supports 16A2 and 16B2 are arranged such that the first clamping portion 17 becomes the second side X2 and the second clamping portion 18 becomes the first side X1.

[0073] As a result, the first support members 16A1 and 16B1 position the first plate-like body 31 in a direction away from the second wall 28 with respect to the first wall 27. The second support members 16A2 and 16B2 position the second plate-like body 36 in a direction approaching the first wall 27 with respect to the second wall 28. By configuring the formwork structure as in this third modified example, the space between the formwork 26A, 26B and the first plate-like body 31 and the second plate-like body 36 can be efficiently sealed.

[0074] (Variations of the support structure) Figure 8 shows a modified example of the support according to one embodiment of the present invention. As shown in Figure 8, the support 19 of the fourth modified example, the first clamping portion 17 and the second clamping portion 18 are arranged in close contact in the width direction Y. The first connecting portion 21 of the first clamping portion 17 and the second connecting portion 22 of the second clamping portion 18 are in close contact in the width direction Y such that parts of each overlap. In the opposing direction X, the first clamping portion 17 is positioned on the first side Y1, and the second clamping portion 18 is positioned on the second side Y2. The first connecting portion 21 and the second connecting portion 22 are joined to each other by welding. By configuring the support 19 as shown in this modified example, the arrangement of the first plate-like body 31 and the second plate-like body 36 with respect to the formwork 26A and 26B can be changed.

[0075] (Note) (1) One aspect 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-like portions and a first connecting portion connected to each of the pair of first plate-like portions; and a second clamping portion having a pair of opposing second plate-like portions and a second connecting portion connected to each of the pair of second plate-like portions, wherein the first clamping portion is open on the side opposite to the first connecting portion in the width direction, and the second clamping portion is open on the side opposite to the second connecting portion in the width direction. In this disclosure, since the first and second clamping portions are open in the width direction, the wall plate can be supported from the side. Furthermore, since the support consists only of the first and second clamping portions, the structure can be simplified and manufacturing costs can be reduced.

[0076] (2) A second aspect of the present disclosure is the support described in (1), wherein the first clamping portion and the second clamping portion are open in directions opposite to each other in the width direction. In this disclosure, the directions in which the first clamping portion and the second clamping portion are opened are opposite in the width direction, so that the wall panels can be supported from the sides.

[0077] (3) Aspect 3 of the present disclosure may be the support described in (1) or (2), wherein the pair of first plate-like portions and the first connecting portion are of equal height. In this disclosure, since the height of the members constituting the first clamping portion is uniform, it is possible to simplify the structure of the first clamping portion and reduce manufacturing costs.

[0078] (4) Aspect 4 of the present disclosure may be a support according to any one of (1) to (3), wherein the pair of second plate-like portions and the second connecting portion are of equal height. In this disclosure, since the height of the members constituting the second clamping portion is uniform, it is possible to simplify the structure of the second clamping portion and reduce manufacturing costs.

[0079] (5) Aspect 5 of the present disclosure may be a support according to any one of (1) to (4), wherein one of the pair of first plate-like portions is connected to one of the pair of second plate-like portions. In this disclosure, the first clamping portion and the second clamping portion are in close contact in opposing directions, and the first clamping portion and the second clamping portion overlap in the width direction, thereby enabling a simplification of the structure.

[0080] (6) Aspect 6 of the present disclosure may be a support according to any one of (1) to (5) to which the first connection and the second connection are connected. In this disclosure, the first clamping portion and the second clamping portion are in close contact in the width direction, and the first clamping portion and the second clamping portion are configured to overlap in the opposing direction, thereby enabling a simplification of the structure.

[0081] (7) Aspect 7 of the present disclosure may be a support according to any one of (1) to (6), wherein the first clamping portion is U-shaped in plan view. In this disclosure, the shape of the first clamping portion is simplified, which allows for a simplification of the structure of the first clamping portion and a reduction in manufacturing costs.

[0082] (8) Aspect 8 of the present disclosure may be a support according to any one of (1) to (7), wherein the second clamping portion is U-shaped in plan view. In this disclosure, the shape of the second clamping portion is simplified, which allows for a simplification of the structure of the second clamping portion and a reduction in manufacturing costs.

[0083] (9) Aspect 9 of the present disclosure may be a support according to any one of (1) to (8), wherein the first clamping portion or the second clamping portion is open in the vertical direction. In this disclosure, since the first clamping portion and the second clamping portion are open in the vertical direction, a wall plate can be easily inserted into the gap between the first clamping portion and the second clamping portion to clamp it.

[0084] (10) In aspect 10 of the present disclosure, the first clamping portion or the second clamping portion may be a support according to any one of (1) to (9) that supports a wall plate that supports soil. This disclosure describes how a support structure can be used to construct the foundation of a building by supporting wall panels that hold up soil and sand.

[0085] (11) Aspect 11 of the present disclosure is a method for manufacturing a support for constructing the foundation of a building, comprising: a clamping part manufacturing step of processing each of a plurality of plate-shaped members so that they are U-shaped in plan view to produce a first clamping part and a second clamping part having a pair of opposing plate-shaped parts and a connecting part connected to each of the pair of plate-shaped parts; and a connecting step of connecting the first clamping part and the second clamping part. In this disclosure, the first clamping portion and the second clamping portion can be formed by bending a plate-shaped member, thereby simplifying the structure of the support and reducing manufacturing costs.

[0086] (12) Aspect 12 of the present disclosure may be the method for manufacturing a support according to (11), wherein in the connection step, the first clamping portion and the second clamping portion are connected to each other by either of the pair of plate-like portions. In this disclosure, the first clamping portion and the second clamping portion are in close contact in the width direction, and the first clamping portion and the second clamping portion are configured to overlap in the opposing direction, thereby enabling a simplification of the structure.

[0087] (13) Aspect 13 of the present disclosure may be the method for manufacturing a support according to (11) or (12), wherein in the connection step, the first clamping portion and the second clamping portion are connected to each other. In this disclosure, the first clamping portion and the second clamping portion are in close contact in the width direction, and the first clamping portion and the second clamping portion are configured to overlap in the opposing direction, thereby enabling a simplification of the structure.

[0088] (14) Aspect 14 of the present disclosure may be a method for manufacturing a support according to any one of (11) to (13), wherein in the connection step, the first clamping portion and the second clamping portion are connected by welding. In this disclosure, the first clamping portion and the second clamping portion are connected by welding, which can reduce manufacturing costs.

[0089] (15) Aspect 15 of the present disclosure is a support structure comprising a support according to any one of (1) to (10), a formwork having a first wall, a second wall disposed opposite to the first wall, and a bottom wall connected to the lower end of the first wall and the lower end of the second wall, respectively, a first plate-like body and a second plate-like body, wherein the support is disposed at the longitudinal end of the formwork and clamps the first wall or the second wall with one of the first clamping portion or the second clamping portion, and clamps the first plate-like body or the second plate-like body with the other of the first clamping portion or the second clamping portion. In this disclosure, the formwork, the first plate-like body, and the second plate-like body can be supported by a support while the first plate-like body and the second plate-like body are positioned at the longitudinal ends of the formwork.

[0090] (16) An aspect 16 of the present disclosure may be the support structure described in (15), comprising: a first support that clamps the first wall; a second support that clamps the second wall; a first plate-like body clamped by the first support; and a second plate-like body clamped by the second support, wherein the first support is positioned such that the first plate-like body is positioned away from the second wall with respect to the first wall, and the second support is positioned such that the second plate-like body is positioned towards the first wall with respect to the second wall. This disclosure enables efficient sealing between the formwork and the first and second plate-like bodies.

[0091] (17) A 17 aspect of the present disclosure may be the support structure according to (15) or (16), comprising: a first support that clamps the first wall; a second support that clamps the second wall; a first plate-like body clamped by the first support; and a second plate-like body clamped by the second support, wherein the first support is positioned such that the first plate-like body is positioned away from the second wall with respect to the first wall; and the second support is positioned such that the second plate-like body is positioned away from the first wall with respect to the second wall. This disclosure enables efficient sealing between the formwork and the first and second plate-like bodies.

[0092] (18) An aspect 18 of the present disclosure is a support structure according to any one of (15) to (17), comprising: a first support that clamps the first wall; a second support that clamps the second wall; a first plate-like body clamped by the first support; and a second plate-like body clamped by the second support, wherein the first support is positioned such that the first plate-like body is positioned in a direction approaching the second wall with respect to the first wall; and the second support is positioned such that the second plate-like body is positioned in a direction approaching the first wall with respect to the second wall. This disclosure enables efficient sealing between the formwork and the first and second plate-like bodies.

[0093] (19) Aspect 19 of the present disclosure may be a support structure according to any one of (15) to (17), comprising: a first support that clamps the first wall; a second support that clamps the second wall; a first plate-like body clamped by the first support; and a second plate-like body clamped by the second support, wherein the first support is positioned such that the first plate-like body is positioned in a direction approaching the second wall with respect to the first wall, and the second support is positioned such that the second plate-like body is positioned in a direction away from the first wall with respect to the second wall. This disclosure enables efficient sealing between the formwork and the first and second plate-like bodies.

[0094] (20) Aspect 20 of the present disclosure wherein the height of the first wall is greater than the height of the second wall, The height of the first plate-like body may be greater than the height of the second plate-like body, and the support structure may be as described in any one of (15) to (17). In this disclosure, the first wall and first plate-like body of the formwork can efficiently withstand lateral pressure from concrete and the like.

[0095] (21) Aspect 21 of the present disclosure is a method for constructing a support structure, comprising: a formwork arrangement step of arranging a plurality of formworks on the ground at intervals, each having a first wall, a second wall positioned opposite the first wall, and bottom walls connected to the lower end of the first wall and the lower end of the second wall, respectively; a support arrangement step of arranging a plurality of supports described in any one of (1) to (10) on the formwork so that the first wall and the second wall are clamped by one of the first clamping portions or the second clamping portion; and a plate-like body arrangement step of arranging a first plate-like body and a second plate-like body between the formworks so that the first plate-like body and the second plate-like body are clamped by the other of the first clamping portion or the second clamping portion. In this disclosure, the first plate-like body and the second plate-like body can be supported in close proximity to the formwork by the support in the opposing direction. [Explanation of symbols]

[0096] 15. Formwork structure (support structure) 16 Support 16A1,16B1 1st support body 16A2,16B2 Second support 17. First clamping section 17a, 17b First plate-like part 18. Second clamping section 18a, 18b Second plate-like part 21. First connection section 22 Second Connection Section 26 Formwork 27 1st wall 28 Second wall 29 Bottom wall 31. First plate-like body 36. Second plate-like body G4 ground S Construction method (Construction method for support structure) S10 Formwork placement step S11 Support placement step S12 Plate-shaped body arrangement step X Opposite direction Y width direction Z vertical direction

Claims

1. A support structure for constructing the foundation of a building, A first clamping portion having a pair of opposing first plate-like portions and a first connecting portion connected to each of the pair of first plate-like portions, A second clamping portion having a pair of opposing second plate-shaped portions and a second connecting portion connected to each of the pair of second plate-shaped portions, Equipped with, The first clamping portion is open on the side opposite to the first connecting portion in the width direction. The second clamping portion is open on the side opposite to the second connecting portion in the width direction. A support in which either one of the pair of first plate-like portions and either one of the pair of second plate-like portions are connected such that only parts of each other overlap, or the first connecting portion and the second connecting portion are connected such that only parts of each other overlap.

2. The support according to claim 1, wherein the first clamping portion and the second clamping portion are open in directions opposite to each other in the width direction.

3. The support according to claim 1, wherein the pair of first plate-like portions and the first connecting portion are of equal height.

4. The support according to claim 1, wherein the pair of second plate-like portions and the second connecting portion are of equal height.

5. The support according to claim 1, wherein the first clamping portion is U-shaped in plan view.

6. The support according to claim 1, wherein the second clamping portion is U-shaped in plan view.

7. The support according to claim 1, wherein the first clamping portion or the second clamping portion is open in the vertical direction.

8. The support according to claim 1, wherein the first clamping portion or the second clamping portion supports a wall plate body that supports soil and sand.

9. A method for manufacturing a support structure for building the foundation of a building, A clamping part manufacturing step involves processing each of several plate-shaped members so that they form a U-shape in plan view, thereby creating a first clamping part and a second clamping part having a pair of opposing plate-shaped parts and connecting parts connected to each of the pair of plate-shaped parts, A connection step of connecting the first clamping portion and the second clamping portion, Includes, A method for manufacturing a support, wherein in the connection step, one of the pair of plate-like portions of the first clamping portion and one of the pair of plate-like portions of the second clamping portion are connected such that only parts of them overlap, or the connection portion of the first clamping portion and the connection portion of the second clamping portion are connected such that only parts of them overlap.

10. The method for manufacturing a support according to claim 9, wherein in the connection step, the first clamping portion and the second clamping portion are connected by welding.

11. A support according to any one of claims 1 to 8, A formwork having a first wall, a second wall positioned opposite the first wall, and bottom walls connected to the lower end of the first wall and the lower end of the second wall, A first plate-like body and a second plate-like body, Equipped with, The support structure is positioned at the longitudinal end of the formwork and clamps the first wall or the second wall with one of the first clamping portion or the second clamping portion, and clamps the first plate-like body or the second plate-like body with the other of the first clamping portion or the second clamping portion.

12. A first support that clamps the first wall, A second support that clamps the second wall, The first plate-like body is held between the first support and The second plate-like body is sandwiched between the second support, Equipped with, The first support is configured such that the first plate-like body is positioned in a direction approaching the second wall with respect to the first wall. The support structure according to claim 11, wherein the second support is positioned such that the second plate-like body is arranged in a direction away from the first wall with respect to the second wall.

13. A first support that clamps the first wall, A second support that clamps the second wall, The first plate-like body is held between the first support and, The second plate-like body is sandwiched between the second support, Equipped with, The first support is configured such that the first plate-like body is positioned in a direction away from the second wall with respect to the first wall. The support structure according to claim 11, wherein the second support is positioned such that the second plate-like body is arranged in a direction away from the first wall with respect to the second wall.

14. A first support that clamps the first wall, A second support that clamps the second wall, The first plate-like body is held between the first support and, The second plate-like body is sandwiched between the second support, Equipped with, The first support is configured such that the first plate-like body is positioned in a direction approaching the second wall with respect to the first wall. The support structure according to claim 11, wherein the second support is positioned such that the second plate-like body is positioned in a direction approaching the first wall with respect to the second wall.

15. A first support that clamps the first wall, A second support that clamps the second wall, The first plate-like body is held between the first support and The second plate-like body is sandwiched between the second support, Equipped with, The first support is configured such that the first plate-like body is positioned in a direction away from the second wall with respect to the first wall. The support structure according to claim 11, wherein the second support is positioned such that the second plate-like body is positioned in a direction approaching the first wall with respect to the second wall.

16. The height of the first wall is greater than the height of the second wall. The support structure according to claim 11, wherein the height of the first plate-like body is greater than the height of the second plate-like body.

17. A formwork arrangement step involves arranging multiple formworks on the ground at intervals, each having a first wall, a second wall positioned opposite the first wall, and bottom walls connected to the lower ends of the first wall and the second wall, respectively. A support arrangement step involves arranging a plurality of support bodies according to any one of claims 1 to 8 in the formwork so that the first wall and the second wall are clamped by one of the first clamping portion or the second clamping portion, A plate-forming arrangement step involves arranging the first plate-shaped body and the second plate-shaped body between the formworks and clamping the first plate-shaped body and the second plate-shaped body with the other of the first clamping portion or the second clamping portion, A construction method for a support structure that includes the following.

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