Fixing structure at the intersection of support members

Abstract

To provide a fixing structure of a timbering material intersection, which can fix the timbering material intersection and suppress deformation of a sheathing board without relying on skill of a building worker.SOLUTION: In a timbering material intersection fixing structure 100, a first timbering material 10 extending in a first direction and supporting a sheathing board intersects with a second timbering material 20 that is disposed on the first timbering material and extends in a second direction and supports a sheathing board at a corner part where a plurality of sheathing boards 2A, 2B intersect with each other. The timbering material intersection fixing structure has a first member 51 that is disposed adjacent to the first timbering material in the second direction and extends in the first direction, a second member 52 that is disposed on the first member so as to be adjacent to the second timbering material in the first direction, extends in the second direction, and is fixed to the first member, a first fixing member 61 for fixing the first timbering material at least to either the first member or the second member, and a second fixing member 62 for fixing the second timbering material at least to either the first member or the second member.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a fixing structure for the intersection of formwork supports.

Background Art

[0002] Conventionally, when placing concrete during the construction of a building foundation, formwork is arranged so as to surround the space where the concrete is to be placed. The formwork is supported by formwork supports such as square pipes. At corner portions such as outer corners and inner corners, the formwork supports are arranged so as to intersect each other. The formwork supports intersecting at the corner portion are fixed to each other using a fixture (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Conventionally, various methods are known as methods for fixing formwork supports. For example, there is a method of fixing formwork supports to each other using a clamp vice. In this method, the formwork supports can be fixed by sandwiching a plurality of formwork supports in the vertical direction using a clamp vice. In the fixing method using a clamp vice, when earth pressure or concrete pressure acts on the formwork and force is transmitted from the formwork to the formwork support, there is a risk that the formwork support rotates around the point fixed by the clamp vice and the formwork moves outward and bulges.

[0005] Another method involves using specialized clamps to secure the support materials together. However, when using specialized clamps, the clamps interfere with the formwork, creating a gap between the formwork and the support materials. This gap makes the formwork more susceptible to deformation, leading to errors in the concrete construction.

[0006] Another method involves using binding wire to secure the support materials together. However, when using binding wire, variations can occur depending on the skill of the installer. If an unskilled installer performs the work, the support materials may not be securely fixed, and the formwork may shift.

[0007] The present invention aims to provide a fixing structure for intersecting support members that can fix intersecting support members and suppress deformation of formwork, regardless of variations in the skill of the installers. [Means for solving the problem]

[0008] To achieve the above objective, one embodiment of the fixing structure for the intersection of support members according to the present invention is: A fixing structure for a support member intersection in a corner where multiple formwork panels extending in a first direction and a second direction intersect, wherein a long first support member extending in the first direction and supporting the formwork panels intersects with a long second support member positioned on the first support member and extending in the second direction and supporting the formwork panels, A first member is positioned adjacent to the first support member in the second direction and extends in the first direction, A second member is positioned on the first member, adjacent to the second support member in the first direction, extending in the second direction, and fixed to the first member. The first support member is fixed to at least one of the first member and the second member, The second support member is characterized by comprising a second fixing member that fixes the second support member to at least one of the first member and the second member.

[0009] In this embodiment, by arranging a first member extending in the first direction adjacent to a first support member in the second direction, the force acting on the first support member in the second direction can be received by the first member. The reaction force from the first member can support the first support member. The force received by the first member can be received by the reaction force from the second support member via the second member. Furthermore, by arranging a second member extending in the second direction adjacent to a second support member in the first direction, the force acting on the second support member in the first direction can be received by the second member. The reaction force from the second member can support the second support member. The force received by the second member can be received by the reaction force from the first support member via the first member. In this embodiment, the deformation of the formwork can be suppressed by firmly fixing the support member intersections so that no gaps are formed between the first and second support members and the formwork. Furthermore, in this embodiment, since the first member and the second member are fixed together, the integrated first member and the second member can be easily positioned. In this embodiment, the intersection of the support members can be firmly fixed regardless of variations in the skill of the installers.

[0010] In another embodiment of the present invention, The aforementioned corner is an external corner, The first fixing member fixes the tip of the first support member and the second member in the vertical direction. The second fixing member is characterized by fixing the tip of the second support member and the first member in the vertical direction.

[0011] In this embodiment, at the corner, the force acting on the first support member can be received by the first member fixed to the tip of the second support member. Furthermore, in this embodiment, at the corner, the force acting on the second support member can be received by the second member fixed to the tip of the first support member.

[0012] In another embodiment of the present invention, The aforementioned corner is an external corner, The first fixing member fixes the tip of the first support member and the first member in the second direction. The second fixing member is characterized by fixing the tip of the second support member and the second member in the first direction.

[0013] In this embodiment, at the corner, the force acting on the first support member can be received by the first member, and the force acting on the first member can be received by the second support member via the second member. Furthermore, in this embodiment, at the corner, the force acting on the second support member can be received by the second member, and the force acting on the second member can be received by the first support member via the first member.

[0014] In another embodiment of the present invention, The aforementioned corner is an inward corner, The first fixing member fixes the first support member and the second member in the vertical direction. The second fixing member is characterized by fixing the second support member and the first member in the vertical direction.

[0015] In this embodiment, at the inner corner, the force acting on the first support member can be received by the first member, and the force acting on the first member can be received by the second support member via the second member. Furthermore, in this embodiment, at the inner corner, the force acting on the second support member can be received by the second member, and the force acting on the second member can be received by the first support member via the first member.

[0016] In another embodiment of the present invention, The first member and the second member are square pipes or shaped steel materials. The first and second members are characterized in that they form a cross shape in a plan view.

[0017] According to this aspect, the first member and the second member intersect to form a cross shape, enabling a simple structure. The first member and the second member can be arranged such that the side surface of the first member abuts against the first support material and the side surface of the second member abuts against the second support material.

Advantages of the Invention

[0018] As can be understood from the above description, it is possible to provide a fixing structure for the intersection of support materials that can fix the intersecting support materials and suppress the deformation of the retaining wall board regardless of the variation in the skills of the constructor.

Brief Description of the Drawings

[0019] [Figure 1] It is a plan view showing the intersection of support materials that support a plurality of retaining wall boards at the outside corner. [Figure 2] It is a perspective view showing a fixture for fixing the intersection of support materials. [Figure 3] It is a plan view showing the fixing structure of the intersection of support materials according to the first embodiment. [Figure 4] It is a plan view showing the fixing structure of the intersection of support materials according to the second embodiment. [Figure 5] It is a plan view showing the intersection of support materials that support a plurality of retaining wall boards at the inside corner. [Figure 6] It is a plan view showing the fixing structure of the intersection of support materials according to the third embodiment. [Figure 7] It is a perspective view showing a fixture according to the first modification. [Figure 8] It is a perspective view showing a fixture according to the second modification.

Modes for Carrying Out the Invention

[0020] Hereinafter, the fixing structure of the intersection of support materials according to the embodiment will be described with reference to the accompanying drawings. In the present specification and drawings, substantially the same components may be denoted by the same reference numerals, and redundant descriptions may be omitted.

[0021] [Fixing structure for the intersection of support members according to the first embodiment] First, an example of a fixing structure for a support member intersection according to the first embodiment will be described with reference to Figures 1 to 3. Here, Figure 1 is a plan view showing a support member intersection supporting multiple formwork boards at an outside corner. Figure 2 is a perspective view showing a fixing device for fixing the support member intersection. Figure 3 is a plan view showing the fixing structure for a support member intersection according to the first embodiment.

[0022] Furthermore, in each figure, arrows indicating three mutually orthogonal directions—the X-axis, Y-axis, and Z-axis—may be shown as appropriate. The X-axis and Y-axis directions are aligned horizontally. The X-axis direction is an example of a first direction, and the Y-axis direction is an example of a second direction intersecting the first direction. The Z-axis direction is aligned vertically.

[0023] In the corner section 101 shown in Figure 1, slab concrete and base concrete are poured. The corner section 101 is an example of a corner. When pouring the concrete, multiple formwork panels 2A and 2B are placed. Multiple formwork panels 2A are arranged along the X-axis direction, and multiple formwork panels 2B are arranged along the Y-axis direction. Multiple formwork panels 2A are supported by a first support member 10 extending in the X-axis direction. Multiple formwork panels 2B are supported by a second support member 20 extending in the Y-axis direction. The formwork panels 2A and 2B are arranged so as to intersect each other.

[0024] The first support member 10 and the second support member 20 are elongated members, such as square pipes. The first support member 10 and the second support member 20 intersect each other to form a support member intersection 30. The second support member 20 is positioned on top of the first support member 10. Of the intersecting support members, the one positioned lower is designated as the first support member 10, and the one positioned upper is designated as the second support member 20. The direction in which the first support member 10 extends is designated as the first direction, and the direction in which the second support member 20 extends is designated as the second direction.

[0025] The support member intersection 30 includes the intersection of the first support member 10 and the second support member 20. The first support member 10 has a main body portion 11 and a tip portion 12. The main body portion 11 is the part that supports the formwork 2A and is arranged adjacent to the formwork 2A in the Y-axis direction. The tip portion 12 is the part that protrudes from the support member intersection 30 on the opposite side from the main body portion 11.

[0026] The second support member 20 has a main body portion 21 and a tip portion 22. The main body portion 21 is the part that supports the formwork 2B and is positioned adjacent to the formwork 2B in the X-axis direction. The tip portion 22 is the part that protrudes from the support member intersection 30 on the opposite side from the main body portion 21.

[0027] The fastener 50 shown in Figures 2 and 3 is a fastener for fixing the support member intersection 30. The fastener 50 has a first member 51 extending in the X-axis direction and a second member 52 extending in the Y-axis direction. The first member 51 and the second member 52 are formed from, for example, square pipes and are arranged to intersect each other, forming a cross shape in plan view. The second member 52 is positioned on top of the first member 51 and fixed in the vertical direction. The first member 51 and the second member 52 are integrated by, for example, welding. The first member 51 and the second member 52 are not limited to being integrated by welding, but may be joined by, for example, rivets, or integrated by other methods. The first member 51 and the second member 52 may be formed from square pipes of the same specifications as the first support member 10 and the second support member 20. In the fixing device 50, of the intersecting first member 51 and second member 52, the one positioned lower is designated as the first member 51, and the one positioned upper is designated as the second member 52.

[0028] As shown in Figure 3, the fixing structure 100 at the support member intersection includes a fixing device 50 and clamps 61 and 62. The first member 51 of the fixing device 50 is positioned adjacent to the first support member 10 in the Y-axis direction and extends in the X-axis direction. The first member 51 is, for example, longer than the tip portion 12 of the first support member 10. In the vertical direction, the first support member 10 and the first member 51 are positioned at the same location. In the Y-axis direction, the side surface of the first member 51 is in contact with the side surface of the tip portion 12.

[0029] The second member 52 of the fixing device 50 is positioned adjacent to the second support member 20 in the X-axis direction and extends in the Y-axis direction. The second member 52 is, for example, longer than the tip portion 22 of the second support member 20. In the vertical direction, the second support member 20 and the second member 52 are positioned at the same location. In the X-axis direction, the side surface of the second member 52 is in contact with the side surface of the tip portion 22.

[0030] One end 52a of the second member 52 rests on the tip 12 of the first support member 10. The one end 52a is the end closer to the first support member 10 in the Y-axis direction, and the other end 52b is the end further away from the first support member 10. One end 51a of the first member 51 is positioned below the tip 22 of the second support member 20. The one end 51a is the end closer to the second support member 20 in the X-axis direction, and the other end 51b is the end further away from the second support member 20.

[0031] Clamp 61 clamps and fixes the tip 12 of the first support member 10 and one end of the second member 52 in an up-and-down direction. Clamp 62 clamps and fixes the tip 22 of the second support member 20 and one end of the first member 51 in an up-and-down direction. Clamp 61 is an example of a first fixing member, and clamp 62 is an example of a second fixing member.

[0032] The first member 51 abuts against the tip 12 of the first support member 10 in the Y-axis direction and against the tip 22 of the second support member 20 in the vertical direction. The second member 52 abuts against the tip 22 of the second support member 20 in the X-axis direction and against the tip 12 of the first support member 10 in the vertical direction. The first member 51 and the second member 52 are fixed to each other and integrated.

[0033] (Transmission of forces acting on the support material) Next, the transmission of forces acting on the second support member 20, which extends in the Y-axis direction, will be explained. Within the area enclosed by the formwork panels 2A and 2B, internal embankment or concrete is constructed. Earth pressure acts on the formwork panels 2A and 2B. Formwork panel 2A receives earth pressure in the Y-axis direction. Formwork panel 2B receives earth pressure in the X-axis direction.

[0034] The second support member 20 receives force from the formwork 2B in the X-axis direction. The second support member 20 transmits force in the Y-axis direction. The tip 22 of the second support member 20 is in contact with the second member 52 in the X-axis direction. Forces acting on the second support member 20 in the X-axis direction can be received by the second member 52.

[0035] When a force acts on the second support member 20 in a clockwise direction, with the position fixed by the clamp 62 as the fulcrum, a force acts on the main body 21 of the second support member 20 in a direction that pushes it from the formwork 2B. The positional relationship of "left" and "right" is based on the positional relationship shown in the drawing. At this time, the force acting on the second support member 20 in the X-axis direction can be received by the second member 52. The reaction force from the second member 52 restrains the movement of the second support member 20 in the X-axis direction. The force acting on the second member 52 is transmitted to the first member 51 and the first support member 10.

[0036] When force is transmitted from the second member 52 to the first member 51, a force acts on the other end of the first member 51 in a direction that causes it to rotate clockwise in a plan view. One end 51a of the first member 51 is in contact with the first support member 10 in the Y-axis direction. The first member 51 receives a reaction force from the first support member 10, and its rotational movement is suppressed. In other words, the rotational movement of the second member 52, which is fixed to the first member 51, is suppressed. The rotational movement of the second support member 20 is suppressed by the fixing device 50. The formwork 2B is supported by the second support member 20, and its deformation is suppressed.

[0037] The transmission of forces acting on the first support member 10, which extends in the X-axis direction, is the same as the transmission of forces acting on the second support member 20, and therefore the explanation is omitted. The transmission of forces acting on the first support member 10 is the same as the transmission of forces acting on the second support member 20, except that the direction of the forces is different, and the rotational movement of the first support member 10 is suppressed by the fixing device 50. The formwork 2A is supported by the first support member 10, and its deformation is suppressed.

[0038] (Effects and benefits of the fixing structure at the intersection of support members) According to the fixing structure 100 at the intersection of the support members according to the first embodiment, by arranging the first member 51, which extends in the X-axis direction, adjacent to the first support member 10 in the Y-axis direction, the force acting on the first support member 10 in the Y-axis direction can be received by the first member 51. The first support member 10 can be supported by the reaction force from the first member 51. The force received by the first member 51 can be received by the reaction force from the second support member 20 via the second member 52.

[0039] Furthermore, according to the fixing structure 100 at the intersection of the support members, by arranging the second member 52, which extends in the Y-axis direction, adjacent to the second support member 20 in the X-axis direction, the force acting on the second support member 20 in the X-axis direction can be received by the second member 52. The second support member 20 can be supported by the reaction force from the second member 52. The force received by the second member 52 can be received by the reaction force from the first support member 10 via the first member 51.

[0040] Furthermore, the fixing structure 100 for the support member intersection can firmly fix the support member intersection 30 so that no gap is formed between the first support member 10 and the second support member 20 and the formwork panels 2A and 2B, thereby suppressing deformation of the formwork panels 2A and 2B. In addition, the fixing structure 100 for the support member intersection allows for easy placement of the integrated fixing device 50 because the first member 51 and the second member 52 are fixed together. The fixing structure 100 for the support member intersection can firmly fix the support member intersection 30 regardless of variations in the skill level of the workers.

[0041] Furthermore, in the fixing structure 100 at the intersection of the support members, the clamp 61 fixes the tip 12 of the first support member 10 and the end 52a of the second member 52 in the vertical direction, and the clamp 62 fixes the tip 22 of the second support member 20 and the end 51a of the first member 51 in the vertical direction. With this configuration of the fixing structure 100 at the intersection of the support members, the force acting on the first support member 10 can be received by the first member 51 fixed to the tip 22 of the second support member 20. Also, with the fixing structure 100 at the intersection of the support members, the force acting on the second support member 20 can be received by the second member 52 fixed to the tip 12 of the first support member 10. By using the clamps 61 and 62, the intersection of the support members 30 can be stably fixed regardless of the skill of the installer.

[0042] Furthermore, in the fixing structure 100 at the intersection of the support members, the first member 51 and the second member 52 are formed from square pipes and form a cross shape in plan view. With this configuration, the fixing device 50 can be made simple. The fixing device 50 can be positioned so that the side surface of the first member 51, which is a square pipe, abuts against the first support member 10, and the side surface of the second member 52, which is a square pipe, abuts against the second support member 20. By constructing the first support member 10, the second support member 20, the first member 51, and the second member 52 from pipes, the contact area between them can be increased.

[0043] [Securing structure for the intersection of support members according to the second embodiment] Next, with reference to Figure 4, the fixing structure of the support member intersection according to the second embodiment will be described. Figure 4 is a plan view showing the fixing structure of the support member intersection according to the second embodiment. The difference between the fixing structure 100B of the support member intersection according to the second embodiment and the fixing structure 100 of the support member intersection according to the first embodiment is the arrangement of the clamps 61B and 62B. In the description of the second embodiment, the same explanation as in the first embodiment will be omitted.

[0044] The fixing structure 100B at the intersection of the support members comprises a fixing device 50 and clamps 61B and 62B. Clamp 61B clamps and fixes the tip 12 of the first support member 10 and the end 51b of the first member 51 in the Y-axis direction. Clamp 62B clamps and fixes the tip 22 of the second support member 20 and the end 52b of the second member 52 in the X-axis direction.

[0045] The fixing structure 100B at the intersection of the support members according to this second embodiment also provides the same effects as the fixing structure 100 at the intersection of the support members according to the first embodiment. In the fixing structure 100B at the intersection of the support members, by fixing the first support member 10 and the first member 51 in the Y-axis direction, the force acting on the first support member 10 in the Y-axis direction can be suitably received. In the fixing structure 100 at the intersection of the support members, by fixing the second support member 20 and the second member 52 in the X-axis direction, the force acting on the second support member 20 in the X-axis direction can be suitably received. The clamps 61B and 62B can be used to align the direction in which the support members are clamped between the support members and the first member 51 or the second member 52 with the direction of the force acting on the support members due to earth pressure.

[0046] [Fixing structure for the intersection of support members according to the third embodiment] Next, with reference to Figures 5 and 6, the fixing structure of the support member intersection according to the third embodiment will be described. Figure 5 is a plan view showing a support member intersection supporting multiple formwork boards in an inner corner. Figure 6 is a plan view showing the fixing structure of the support member intersection according to the third embodiment. The difference between the fixing structure 100C of the support member intersection according to the third embodiment and the fixing structure 100 of the support member intersection according to the first embodiment is that it fixes the support member intersection 30B in the inner corner 102. Note that in the description of the third embodiment, the same explanation as in the first embodiment will be omitted.

[0047] The formwork panels 2A and 2B are arranged to intersect each other, forming an inner corner 102. As shown in Figure 6, the fixing structure 100C at the support member intersection comprises a fixing device 50 and clamps 61C and 62C. The fixing device 50 has the same configuration as the one used at the outer corner 101. The fixing device 50 can be used at both the outer corner 101 and the inner corner 102. Clamp 61C clamps and fixes the first support member 10 and the end 52b of the second member 52 in the vertical direction. Clamp 62C clamps and fixes the second support member 20 and the first member 51 in the vertical direction.

[0048] The first member 51 abuts against the first support member 10 in the Y-axis direction and against the second support member 20 in the vertical direction. The second member 52 abuts against the second support member 20 in the X-axis direction and against the first support member 10 in the vertical direction.

[0049] (Transmission of forces acting on the support material) Next, the transmission of forces acting on the second support member 20 will be explained. The second support member 20 receives a force from the formwork 2B in the X-axis direction. The second support member 20 transmits forces in the Y-axis direction. The second support member 20 is in contact with the second member 52 in the X-axis direction. In the X-axis direction, the force acting on the second support member 20 can be received by the second member 52.

[0050] When a force acts on the second support member 20 in a counterclockwise direction, with the position fixed by the clamp 62C as the fulcrum, a force acts on the second support member 20 in a direction that pushes it from the formwork 2B. At this time, the force acting on the second support member 20 in the X-axis direction can be received by the second member 52. The reaction force from the second member 52 restrains the movement of the second support member 20 in the X-axis direction. The force acting on the second member 52 is transmitted to the first member 51 and the first support member 10.

[0051] When force is transmitted from the second member 52 to the first member 51, a force acts on the end of the first member 51 (the end furthest from the second support member 20) in a counterclockwise rotational direction in a plan view. The first member 51 is in contact with the first support member 10 in the Y-axis direction. The first member 51 receives a reaction force from the first support member 10, and its rotational movement is suppressed. In other words, the rotational movement of the second member 52, which is fixed to the first member 51, is suppressed. The rotational movement of the second support member 20 is suppressed by the fixing device 50. The formwork 2B is supported by the second support member 20, and its deformation is suppressed.

[0052] In this third embodiment of the fixing structure 100C for the support member intersection, the support member intersection 30B can also be fixed. In the fixing structure 100C for the support member intersection, at the inner corner 102, the force acting on the first support member 10 can be received by the first member 51, and the force acting on the first member 51 can be received by the second support member 20 via the second member 52. Furthermore, in the fixing structure 100C for the support member intersection, at the inner corner 102, the force acting on the second support member 20 can be received by the second member 52, and the force acting on the second member 52 can be received by the first support member 10 via the first member 51.

[0053] [First variation] Next, with reference to Figure 7, the fixing device 50B according to the first modified example will be described. Figure 7 is a perspective view showing the fixing device according to the first modified example. The fixing device 50B has a first member 51B and a second member 52B made of channel steel (shaped steel material). The fixing structures 100, 100B, and 100C at the intersection of the support members may also be configured to include the fixing device 50B instead of the fixing device 50.

[0054] [Second variation] Next, with reference to Figure 8, the fixing device 50C according to the second modified example will be described. Figure 8 is a perspective view showing the fixing device according to the second modified example. The fixing device 50C has a first member 51C and a second member 52C made of angle steel (shaped steel material). The fixing structures 100, 100B, and 100C at the intersection of the support members may be configured to include the fixing device 50C instead of the fixing device 50. The fixing device 50 may be made from, for example, an H-shaped steel.

[0055] Furthermore, other embodiments may be used in which other components are combined with the configurations listed in the above embodiments, and the present invention is not limited in any way to the configurations shown herein. In this regard, modifications can be made without departing from the spirit of the present invention, and can be appropriately determined according to the application form.

[0056] In the above embodiment, the case where the first and second fixing members are clinch clamps 61 and 62 has been described, but the first and second fixing members are not limited to clinch clamps and may be other fixing members.

[0057] In the first embodiment described above, the case in which clamps 61 and 62 are used as the first and second fixing members is explained, but for example, clamps 61 and 62B may be used, or clamps 61B and 62 may be used. Also, clamps 61, 61B, 62, and 62B may be used simultaneously. [Explanation of Symbols]

[0058] 100, 100B, 100C: Fixing structure at the intersection of support members 101: Corner (outside corner) 102: Corner (Inner corner) 2A, 2B: Formwork 10: 1st shoring material 11: Main body 12:Tip 20:Second shoring material 21: Main body 22:Tip 30: Intersection of support members 50,50B,50C: Fixture 51, 51B, 51C: First member 52, 52B, 52C: Second member 61, 61B, 61C: Clamp (first fixing member) 62, 62B, 62C: Clamp (second fixing member) X: X-axis direction (first direction) Y: Y-axis direction (second direction) Z: Z-axis direction (vertical direction)

Claims

1. A fixing structure for a support member intersection in a corner where multiple formwork panels extending in a first direction and a second direction intersect, wherein a long first support member extending in the first direction and supporting the formwork panels intersects with a long second support member positioned on the first support member and extending in the second direction and supporting the formwork panels, A first member is positioned adjacent to the first support member in the second direction and extends in the first direction, A second member is positioned on the first member, adjacent to the second support member in the first direction, extending in the second direction, and fixed to the first member, The first support member is fixed to at least one of the first member and the second member, A fixing structure for a support member intersection, characterized by comprising a second fixing member that fixes the second support member to at least one of the first member and the second member.

2. The aforementioned corner is an external corner, The first fixing member fixes the tip of the first support member and the second member in the vertical direction. The fixing structure for the intersection of support members according to claim 1, characterized in that the second fixing member fixes the tip of the second support member and the first member in the vertical direction.

3. The aforementioned corner is an external corner, The first fixing member fixes the tip of the first support member and the first member in the second direction. The fixing structure for the intersection of support members according to claim 1, characterized in that the second fixing member fixes the tip of the second support member and the second member in the first direction.

4. The aforementioned corner is an inward corner, The first fixing member fixes the first support member and the second member in the vertical direction. The fixing structure for the intersection of support members according to claim 1, characterized in that the second fixing member fixes the second support member and the first member in the vertical direction.

5. The first member and the second member are square pipes or shaped steel materials. The fixing structure for the intersection of support members according to claim 1, characterized in that the first member and the second member form a cross shape in a plan view.

Images