Support, support structure, and method for constructing the same

Abstract

To provide a support which facilitates arrangement of a floor above one sandwiching part and a door frame or the like above the other sandwiching part.SOLUTION: A support 16A comprises: a first sandwiching part 17A having a pair of opposing first plate-like parts 17aA and 17bA; a second sandwiching part 18A arranged to face the first sandwiching part and having a pair of opposing second plate-like parts 18aA and 18bA; and a bottom 19A connected to each of a lower end of the first sandwiching part and a lower end of a second sandwiching part. The first sandwiching part is higher than the second sandwiching part.SELECTED DRAWING: Figure 3

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 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, depending on the height of the first and second clamping portions, it may be difficult to place a floor, a door frame, etc. above the first and second clamping portions.

[0007] The present disclosure has been made in consideration of such problems, and aims to provide a support that makes it easy to place a floor above one clamping portion and a door frame or the like above the other clamping portion, a support structure that includes this support, and a construction method for the support structure. [Means for solving the problem]

[0008] The present disclosure relates to a support 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, and a bottom portion connected to the lower end of the first clamping portion and the lower end of the second clamping portion, respectively, wherein the height of the first clamping portion is greater than the height of the second clamping portion. 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] The support body, support structure, and support structure construction method of the present invention make it easy to place a floor above one of the clamping portions and to place a door frame or the like above the other 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 side view of a support body according to a first modified example of an embodiment of the present invention. [Figure 6] FIG. 10 is a side view of a support body according to a third 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 16A has a first clip portion 17A, a second clip portion 18A, and a bottom portion 19A. The first clamping portion 17A has a pair of first plate-shaped portions 17aA and 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 and 18bA facing each other in the facing direction X. The first plate-shaped portions 17aA and 17bA, the second plate-shaped portions 18a and 18b, and the bottom portion 19A are each formed in a flat plate shape. In this example, the first plate-shaped portions 17aA and 17bA, the second plate-shaped portions 18a and 18b, and the bottom portion 19A each have a rectangular shape when viewed in the thickness direction. Note that the shapes of the first plate-shaped portions 17aA and 17bA, the second plate-shaped portions 18a and 18b, and the bottom portion 19A are not limited to these. For example, the first plate-shaped portions 17aA, 17bA, the second plate-shaped portions 18a, 18b, and the bottom portion 19A 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. The first plate-shaped portions 17aA, 17bA of the first clipping portion 17A extend upward from an end portion of the bottom portion 19A on a first side X1 (hereinafter simply referred to as the first side X1) in the opposing direction X. 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 first side X1 of the bottom portion 19A.

[0017] 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 opposite to the first side X1 in the facing direction X. 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 second side X2 of the bottom portion 19A.

[0018] 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 18a and 18b 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 18aB. 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 18aB.

[0019] The height of the first clipping portion 17A is greater than the height of the second clipping portion 18A. The height of first clipping portion 17A here 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 of first clipping portion 17A. The height of second clipping portion 18A is the same as the height of first clipping 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.

[0020] 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.

[0021] 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 the bottom portion 19A is greater than the overall width of at least one of the first clipping portion 17A and the second clipping portion 18A. Specifically, the width of the bottom portion 19A is greater than the overall width of the 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 forms an ear portion 21A (a part of the bottom 19A).

[0022] 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.

[0023] For example, the first plate-shaped portions 17aA, 17bA, the second plate-shaped portions 18aA, 18bA, and the bottom portion 19A 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.

[0024] As shown in FIG. 3, the support body 16B has a first clamping portion 17B, a second clamping portion 18B, and a bottom portion 19B that are configured symmetrically with respect to the reference plane S1 with respect to the first clamping portion 17A, the second clamping portion 18A, and the bottom portion 19A of the support body 16A. The supports 16A and 16B are arranged side by side in the width direction Y so that the ears 21A and 21B 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 1 and 2, ear 21A of support body 16A is pressed from above by a part of the bottom wall 29 of formwork 26A. Similarly, ear 21B of support body 16B is pressed from above by a part of the bottom wall 29 of formwork 26B.

[0029] 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.

[0030] 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.

[0031] 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 formwork 26A, 26B from the second side X2 of the second wall 28.

[0032] 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.

[0033] 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).

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] Next, a construction method for constructing the form structure 15 configured as above will be described, focusing on the construction of the supports 16A, 16B, formwork 26, and plate-like bodies 31, 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.

[0040] 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 as a whole in the width direction Y. At this time, the ear portion 21A of the support 16A is pressed by a portion of the bottom wall 29 of the formwork 26A. The ear portion 21B of the support 16B is pressed by a portion 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.

[0041] 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.

[0042] 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.

[0043] The height of first plate-shaped portion 17aA is different from the height of first plate-shaped portion 17bA, so the material cost of first plate-shaped portion 17bA with a shorter height can be reduced compared to the material cost of first plate-shaped portion 17aA with a taller height. The height of the first plate-shaped portion 17bA is shorter than the height of the first plate-shaped portion 17aA. For example, of the first plate-shaped portions 17aA and 17bA, the first plate-shaped portion 17aA that is farther from the second clamping portion 18A is arranged closer to the outside D1 of the outline L1 of the formwork structure 15 of the building 1 in a plan view than the first plate-shaped portion 17bA that is closer to the second clamping portion 18A. When concrete for the floor 55 is poured within the outline L1, lateral pressure of the concrete acts from the inside D2 of the outline L1 toward the outside D1. Therefore, even if the height of the first plate-shaped portion 17bA closer to the second clamping portion 18A is relatively low, the height of the first plate-shaped portion 17aA farther from the second clamping portion 18A is relatively high, so that the first plate-shaped body 31 can be supported against the lateral pressure of the concrete.

[0044] The width of the first clamping portion 17A is shorter than the width of the second clamping portion 18A. Therefore, for example, it is easier to bring the formwork 26 or the like closer to the center in the width direction Y of the first clamping portion 17A than to the center in the width direction Y of the second clamping portion 18A. The end of the first side Y1 of the first clamping portion 17A and the end of the first side Y1 of the second clamping portion 18A are aligned in the width direction Y. This makes it easier to bring flat surfaces into contact with the end of the first side Y1 of the first clamping portion 17A and the end of the first side Y1 of the second clamping portion 18A, for example.

[0045] The width of at least a portion of bottom 19A is longer than the overall width of at least one of first clipping portion 17A and second clipping portion 18A. Therefore, ears 21A, which are portions of bottom 19A that are wider than at least one of first clipping portion 17A and second clipping portion 18A, can be pressed from above ears 21A by, for example, formwork 26, etc., to stabilize the position of support 16A. The width of bottom 19A is greater than the width of first clipping portion 17A. Therefore, ears 21A, which are portions of bottom 19A that are greater in width than first clipping portion 17A, can be pressed from above ears 21A by, for example, formwork 26, etc., to stabilize the position of support 16A.

[0046] The width of at least a portion of bottom 19A may be longer than the longer of the widths of first clamping portion 17A and second clamping portion 18A. In this case, when at least a portion of bottom 19A whose width is longer than the longer of the widths of first clamping portion 17A and second clamping portion 18A is pressed down from above by, for example, formwork 26, it is possible to more reliably prevent first clamping portion 17A and second clamping portion 18A from interfering.

[0047] 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.

[0048] 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 21A 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 21A of the bottom 19A of the support 16A can be stabilized by the part of the bottom wall 29 of the formwork 26A.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] The ear 21A of the support 16A is pressed by a part of the bottom wall 29 of the formwork 26A. Therefore, in the formwork placement step S11, the ear 21A of the bottom 19A of the support 16A is pressed by a part of the bottom wall 29 of the formwork 26A, thereby stabilizing the position of the support 16A.

[0053] 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.

[0054] (First Modification) For example, in the above embodiment, a support body 70A of a first modification shown in FIG. 5 may have a reinforcing rib 71A as a reinforcing member in addition to the components of the support body 16A. For example, the reinforcing rib 71A is formed in a flat plate shape with its thickness direction aligned with the width direction Y. The reinforcing rib 71A has a trapezoidal shape when viewed in the width direction Y. The reinforcing rib 71A is disposed closer to the second side X2 than 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 reinforcing rib 71A gradually decreases toward the second side X2. In the support body 70A of the first modified example configured as above, the strength of the first plate-shaped portion 17bA can be increased by the reinforcing rib 71A. The shape of the reinforcing member is not limited to this, and may be, for example, a straight or curved rod-like member that is bridged between the first plate-like portion 17bA and the bottom portion 19A. The reinforcing member may be joined to any one of the first plate-like portion 17aA, the second plate-like portion 18aA, and the second plate-like portion 18bA, instead of the first plate-like portion 17bA. A plurality of reinforcing members may be arranged spaced apart from each other in the width direction Y.

[0055] (Second 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.

[0056] The formwork 26 on the first side Y1 or the second side Y2 of the supports 16A, 16B as a whole may not be arranged. It is not necessary to press the ears 21A and 21B of the supports 16A and 16B with a part of the bottom wall 29 of the formwork 26A and 26B.

[0057] (Third Modification) As in a support 75A of a third modified example shown in FIG. 6, the width of the first clip portion 17A and the width of the second clip portion 18A may be equal to the width of the bottom portion 19A. By configuring the support body 75A of the third modified example as described above, the width of the first clip portion 17A, the width of the second clip portion 18A, and the width of the bottom portion 19A can be made to match one another.

[0058] (Addendum) (1) Aspect 1 of the present disclosure is a support 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, and a bottom portion connected to the lower end of the first clamping portion and the lower end of the second clamping portion, respectively, wherein the height of the first clamping portion is greater than the height of the second clamping portion.

[0059] In this disclosure, for example, a first plate-shaped body having a relatively high height is placed in a first clamping section, and a second plate-shaped body having a relatively low height is placed in a second clamping section. Then, a floor is placed above the second clamping section and the second plate-shaped body, and a door frame or the like is placed above the first clamping section and the first plate-shaped body. Therefore, even if the floor above the second clamping section and the second plate-shaped body is thick, the upper surface of the floor and the upper surface of the lower part of the door frame can be placed so as to be substantially flush with each other. Therefore, it is possible to easily place a floor above the second clamping portion and a door frame or the like above the first clamping portion.

[0060] (2) Aspect 2 of the present disclosure may be a support body as described in (1), in which the height of one of the pair of first plate-shaped portions is different from the height of the other first plate-shaped portion. In this disclosure, the material cost of the shorter first plate-shaped portion of the pair of first plate-shaped portions can be reduced compared to the material cost of the taller first plate-shaped portion.

[0061] (3) Aspect 3 of the present disclosure may be a support described in (1) or (2), in which the height of the first plate-shaped portion of the pair of first plate-shaped portions that is closer to the second clamping portion is lower than the height of the first plate-shaped portion that is farther from the second clamping portion. In this disclosure, for example, of the pair of first plate-shaped portions, the first plate-shaped portion farther from the second clamping portion is arranged closer to the outside of the outline of the foundation of the building in a plan view than the first plate-shaped portion closer to the second clamping portion. When concrete is poured within the outline, lateral pressure of the concrete acts from the inside to the outside of the outline. Therefore, even if the height of the first plate-shaped portion closer to the second clamping portion is relatively low, the height of the first plate-shaped portion farther from the second clamping portion is relatively high, so the first plate-shaped body can be supported against the lateral pressure of the concrete.

[0062] (4) A fourth aspect of the present disclosure may be the support according to any one of (1) to (3), in which the width of the first clipping portion is shorter than the width of the second clipping portion. In this disclosure, for example, it is possible to more easily bring a formwork or the like closer to the center in the width direction of the first clamping section than to the center in the width direction of the second clamping section.

[0063] (5) A fifth aspect of the present disclosure may be a support described in any one of (1) to (4), in which the first side end of the first clamping portion and the first side end of the second clamping portion are aligned in the width direction of the first clamping portion. In this disclosure, for example, the flat surfaces can be easily brought into contact with the first end of the first clip portion and the first end of the second clip portion.

[0064] (6) A sixth aspect of the present disclosure may be a support according to any one of (1) to (5), in which the width of the first clip portion and the width of the second clip portion are each equal to the width of the bottom portion. In this disclosure, the width of the first clip portion, the width of the second clip portion, and the width of the bottom portion can be matched to one another.

[0065] (7) A seventh aspect of the present disclosure may be a support described in any one of (1) to (6), in which the width of at least a portion of the bottom is greater than the width of at least one of the first clamping portion and the second clamping portion. In this disclosure, the portion of the bottom that is wider than the width of at least one of the first clamping portion and the second clamping portion can be pressed from above this portion using, for example, a formwork, to stabilize the position of the support.

[0066] (8) Aspect 8 of the present disclosure may be the support according to any one of (1) to (7), in which the width of the bottom portion is greater than the width of the first clip portion. In this disclosure, the portion of the bottom that is wider than the width of the first clip can be pressed from above this portion using, for example, a formwork, etc., to stabilize the position of the support.

[0067] (9) A ninth aspect of the present disclosure may be a support described in any one of (1) to (8), in which the width of at least a portion of the bottom is longer than the longer of the width of the first clamping portion and the width of the second clamping portion. In this disclosure, it is possible to more reliably prevent the first clamping portion and the second clamping portion from interfering when at least a portion of the bottom portion, which has a width greater than the longer of the widths of the first clamping portion and the second clamping portion, is pressed down from above this portion using, for example, a formwork or the like.

[0068] (10) A tenth aspect of the present disclosure may be a support according to any one of (1) to (9), comprising a reinforcing member joined to either one of the pair of first plate-shaped portions and the pair of second plate-shaped portions, and to the bottom portion. In this disclosure, the reinforcing member can increase the strength of either one of the pair of first plate-shaped portions or the pair of second plate-shaped portions.

[0069] (11) Aspect 11 of the present disclosure is a support structure comprising a support body described in any one of (1) to (10), 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.

[0070] (12) Aspect 12 of the present disclosure is a support structure comprising a support described in any one of (1) to (10), 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.

[0071] 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.

[0072] (13) Aspect 13 of the present disclosure may be a support structure as described in (12), 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 formwork can be arranged on each side of the width direction of the plurality of supports as a whole.

[0073] (14) A fourteenth aspect of the present disclosure may be a support structure according to (12) or (13), 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.

[0074] (15) Aspect 15 of the present disclosure may be a support structure described in any one of (12) to (14), 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.

[0075] (16) Aspect 16 of the present disclosure may be a support structure described in any one of (12) to (15), 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 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.

[0076] (17) Aspect 17 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 (10) 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.

[0077] 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.

[0078] (18) Aspect 18 of the present disclosure may be a construction method for a support structure described in (17), 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.

[0079] (19) Aspect 19 of the present disclosure may be a construction method for a support structure described in (17) or (18), 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]

[0080] 15 Formwork structure (support structure) 16A,16B,70A,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 21A, 21B Ears (part of the bottom) 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 Y1 1st side

Claims

1. 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; Equipped with A support body, wherein the height of the first clipping portion is greater than the height of the second clipping portion.

2. The support body according to claim 1 , wherein a height of one of the pair of first plate-shaped portions is different from a height of the other of the pair of first plate-shaped portions.

3. The support body according to claim 1 , wherein the height of the first plate-shaped portion of the pair of first plate-shaped portions that is closer to the second clamping portion is lower than the height of the first plate-shaped portion that is farther from the second clamping portion.

4. The support of claim 1 , wherein the width of the first clip is smaller than the width of the second clip.

5. The support body according to claim 4 , wherein an end of the first clipping portion on the first side coincides with an end of the second clipping portion on the first side in the width direction of the first clipping portion.

6. The support of claim 1 , wherein the width of the first clip and the width of the second clip are each equal to the width of the base.

7. The support according to claim 1 , wherein a width of at least a portion of the bottom portion is greater than a width of at least one of the first clip portion and the second clip portion.

8. The support of claim 1 , wherein the width of the bottom portion is greater than the width of the first clip portion.

9. The support according to claim 1 , wherein a width of at least a part of the bottom portion is greater than the longer of a width of the first clip portion and a width of the second clip portion.

10. The support according to claim 1 , further comprising reinforcing members respectively joined to one of the pair of first plate-shaped portions and the pair of second plate-shaped portions, and to the bottom 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 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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