Temporary structure, assembly structure for temporary structure, and building construction method

Abstract

To provide a temporary structure for fall prevention with improved workability.SOLUTION: A temporary structure is a temporary handrail 20 that is used during the construction of a building and mounted on the building body. The temporary handrail 20 includes a strut member 21 extending long in the vertical direction, a base member 22 provided at the lower end of the strut member 21 and in contact with the upper surface of the construction member (beam) of the building body, and a first protruding member 23 and a second protruding member 24 that are provided at an interval in the length direction of the base member 22, protrude downward from the base member 22, and are inserted into through holes provided at an interval on the upper surface of the beam, respectively. The first protruding member 23 protrudes so as to be longer than the second protruding member 24.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a temporary structure, an assembly structure for the temporary structure, and a building construction method, and in particular to a temporary structure for preventing falls that is used during construction of a building and is attached to the building body, an assembly structure for the temporary structure, and a building construction method. [Background technology]

[0002] 2. Description of the Related Art Conventionally, during construction of a building or maintenance after construction, temporary structures such as scaffolding and handrails are set up so that construction work can be carried out from the outside of the building. In addition, during construction or maintenance of buildings that are erected close to adjacent structures, special scaffolding (special handrails) for narrow spaces are temporarily set up.

[0003] Although the above-mentioned dedicated scaffolding makes it possible to carry out construction work from the outside in a small space, it is necessary to erect the dedicated scaffolding from the ground in the gap between the building to be worked on and the adjacent structure, which may limit the size of the building. Therefore, a construction method that does not require erecting the dedicated scaffolding from the ground has been considered. As a temporary structure to prevent falls as an alternative to the above-mentioned dedicated scaffolding, temporary handrails that can be temporarily installed on construction members (beams made of H-shaped steel) of the main building body have been proposed, for example as disclosed in Patent Documents 1 and 2. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2010-71042 A [Patent Document 2] JP 2010-185185 A Summary of the Invention [Problem to be solved by the invention]

[0005] In this situation, there was a demand for a temporary structure that was more stable than existing temporary handrails and could be easily attached and removed, and there was a need to use such a temporary structure to improve workability. In particular, there has been a demand for construction techniques that effectively utilize the above-mentioned temporary structures as a fall prevention measure before and during the attachment of architectural panels (for example, exterior wall panels) to the main building body.

[0006] More specifically, the temporary handrail described in Patent Document 1 comprises a long support member extending vertically, a base member attached to the lower end of the support member and abutting the upper surface of the beam of the building body, and a pair of protruding members which protrude downward from the base member and are inserted into through holes provided at the upper and lower parts of the beam. With the above-mentioned configuration, temporary handrails can be easily installed by utilizing the beams of the building body. On the other hand, because it is necessary to insert the temporary handrail (a pair of protruding members) into both the upper and lower parts of the beam, there is a concern that workers inside the building may not be able to efficiently set up the temporary handrail. For example, a worker may need to insert the pair of protruding members simultaneously by feel.

[0007] The temporary handrail described in Patent Document 2 includes a support member, a base member attached to the lower end of the support member and abutting the upper surface of the beam, and one protruding member protruding downward from the base member and inserted into through holes provided in the upper and lower parts of the beam. It also includes a clamp member for fixing the base member to the upper part of the beam. In the case of the above configuration, although the worker does not have to insert the pair of protruding members by feel as in Patent Document 1, the work of attaching and removing the clamp member is required separately. Also, since the pair of protruding members is not inserted into both the upper and lower parts of the beam, there is a risk that the stability of the temporary handrail may be reduced.

[0008] The present invention has been made in consideration of the above problems, and an object of the present invention is to provide a temporary structure, an assembly structure for a temporary structure, and a building construction method that improve workability. Another object of the present invention is to provide a temporary structure, an assembly structure for a temporary structure, and a building construction method that are highly stable in small spaces and can be easily attached and removed. [Means for solving the problem]

[0009] The above problem is solved by the temporary structure of the present invention, which is a fall prevention temporary structure used during construction of a building and attached to a building main body, comprising: a support member extending long in the vertical direction; a base member provided at the lower end of the support member and abutting against an upper surface of a construction member of the building main body; and a first protruding member and a second protruding member provided at an interval in the length direction or width direction of the base member, each protruding downward from the base member, and each being inserted into a through hole provided at an interval in the upper surface of the construction member, wherein the first protruding member protrudes longer than the second protruding member. a protruding tip portion of each of the first protruding member and the second protruding member has a tapered shape and is formed so as to become thinner toward the tip, and a portion of the first protruding member that is a starting position of the tapered shape is disposed at a position farther from the base member than the tip of the second protruding member. This problem is solved by: With the above configuration, a temporary structure with improved workability can be realized. In more detail, the temporary structure includes a support member, a base member, and a first protruding member and a second protruding member that protrude downward from the base member and are respectively inserted into through holes provided on the upper surface of the beam, and since the first protruding member protrudes longer than the second protruding member, the work of inserting the temporary structure (first and second protruding members) into the through holes of the beam is facilitated. In other words, the worker on-site can first insert the longer first protruding member into the through hole of the beam, and then insert the second protruding member, which makes the work of attaching the temporary structure easier compared to the conventional case in which two protruding members are inserted simultaneously. In particular, in small spaces, where workers must set up temporary handrails by feel, this dramatically improves the efficiency of installation work for temporary structures. Furthermore, as described above, since the protruding tip portions of the first and second protruding members each have a tapered shape, the first and second protruding members can be more easily inserted into the through hole of the beam. As described above, the portion of the first protruding member that is the starting position of the tapered shape is located farther from the base member than the tip of the second protruding member. Therefore, after inserting the first protruding member into the through hole of the beam, the worker can insert the second protruding member while using the thick portion (the widest portion) of the first protruding member that is not the tapered portion as a guide. In other words, the second protruding member can be inserted into another through hole in a stable state with the thick portion of the first protruding member abutting against the edge of the through hole.

[0010] Furthermore, the above problem is solved by the temporary structure of the present invention, which is a temporary structure for preventing falls that is used during construction of a building and is attached to the building main body, comprising a support member extending long in the vertical direction, a base member that is provided at the lower end of the support member and abuts against the upper surface of the construction member of the building main body, and a first protruding member and a second protruding member that are provided at intervals in the length or width direction of the base member, protrude downward from the base member, and are each inserted into through holes provided at intervals on the upper surface of the construction member, wherein the first protruding member protrudes longer than the second protruding member, the base member abuts against the upper surface of the beams of the building main body, and the first protruding member and the second protruding member are each inserted into the through holes formed at an interval on the upper part of the beam, and are also each inserted into second through holes formed at an interval on the lower part of the beam and positioned at positions corresponding to the through holes. As described above, the first and second protruding members are respectively inserted into through holes formed in the upper part of the beam, and into second through holes formed in the lower part of the beam and positioned at positions corresponding to the through holes, resulting in a temporary structure that is more stable and easier to attach and remove than the conventional structure (inventions of Patent Documents 1 and 2).

[0011] Furthermore, the above problem is solved by the temporary structure of the present invention, which is a temporary structure for preventing falls that is used during construction of a building and is attached to the main body of the building, comprising a support member extending a long length in the vertical direction, a base member that is attached to the lower end of the support member and abuts the upper surface of the construction member of the main body of the building, and a first protruding member and a second protruding member that are spaced apart in the length or width direction of the base member, each protruding downward from the base member and each being inserted into a through hole that is spaced apart on the upper surface of the construction member, wherein the first protruding member protrudes longer than the second protruding member, and the first protruding member and the second protruding member are integral with the base member (except for a case in which the second protruding member is detachable from the base member).

[0012] The problem is also solved by the assembly structure of the temporary structure, The temporary structure includes a support member extending in a vertical direction, a base member provided at the lower end of the support member and abutting against the upper surface of the construction member of the building body, and a first protruding member and a second protruding member provided at intervals in the length direction or width direction of the base member, protruding downward from the base member, and inserted into through holes provided at intervals on the upper surface of the construction member, the first protruding member protruding longer than the second protruding member, The problem is also solved by the fact that the temporary structure comprises a support body attached to the upper part of the beam, a second support body attached via a panel mounting bracket used to attach an architectural panel to the upper part of the beam, and a connector connecting the upper parts of the support body and the second support body, the support body having the support member, a beam base member as the base member, the first protruding member and the second protruding member, and the second support body having the support member and a bracket base member provided at the lower end of the support member and attached to the upper surface of the panel mounting bracket. With the above configuration, the support column on one side of the temporary structure is attached to the upper surface of the beam, and the second support column on the other side is attached via a panel mounting bracket for attaching a building panel. Therefore, by using panel mounting fixtures with relatively high rigidity for attaching architectural panels, the temporary structure can be made more stable. In addition, since it utilizes existing parts (panel mounting brackets) that are already installed on the beams, there is no need to attach other components separately, improving workability. In addition, the temporary structure (second support body) can also be used as a positioning member when attaching architectural panels to the main body of a building.

[0013] In this case, the support body and the second support body are arranged at a predetermined interval in the frontage direction of the building main body, the support body is attached to the beam end portion of the beam extending longitudinally along the frontage direction that is closest to the column of the building main body, and the first protruding member is inserted into the through hole at a position closer to the column than the second protruding member. Generally, a beam extending along the frontage direction of the building body is provided with multiple panel mounting brackets spaced apart in the frontage direction, but no panel mounting brackets are provided at the beam ends of the beams that are close to the pillars of the building body.The reason for this is that when attaching architectural panels (exterior wall panels) to the building body, it is necessary to cover the building body including the pillars from the outside, and the architectural panels can be attached more stably if panel mounting brackets are provided on the outer surface of the pillars rather than the beam ends. Therefore, with the above configuration, temporary structures for preventing falls can be set up continuously without leaving any gaps in the extension direction of the beams extending along the frontage direction, thereby further improving the safety of workers. For example, when setting up temporary structures, stability can be ensured by attaching second support bodies to locations where panel mounting brackets can be used, and support bodies can be attached to locations of beam ends where panel mounting brackets are not provided. In addition, when attaching the pillar body to the end of the beam, the temporary structure (pillar body) can be attached more efficiently by inserting the longer first protruding member into the through hole first at a position closer to the column than the second protruding member.

[0014] In this case, the metal fitting base member of the second support body is attached to a mounting portion of the panel mounting fitting that is provided on the inside of the building main body further inward than the panel mounting portion to which the architectural panel is attached, and the temporary structure, when attached to the building main body, is preferably positioned on the inside of the building main body further inward than the mounting position of the architectural panel. With the above-mentioned configuration, it is possible to avoid interference between the temporary structure attached to the building body and the architectural panel (e.g., the exterior wall panel). Therefore, the temporary structure can be effectively used as a fall prevention measure before and during the installation of the architectural panel, and workability can be improved. Furthermore, with the above-mentioned configuration, the temporary structure does not protrude outward from the main body of the building, and the temporary structure can be easily attached and removed.

[0015] The problem is also solved by a building construction method using the temporary structure, The temporary structure includes a support member extending in a vertical direction, a base member provided at the lower end of the support member and abutting against the upper surface of the construction member of the building body, and a first protruding member and a second protruding member provided at an interval in the length direction or width direction of the base member, protruding downward from the base member, and inserted into through holes provided at an interval in the upper surface of the construction member, the first protruding member protruding longer than the second protruding member, and the building construction method includes the steps of: The problem can also be solved by a building construction method including the steps of: attaching the temporary structure to the construction member; attaching the architectural panel to a portion of the construction member that is located outside the building main body further than the temporary structure; and removing the temporary structure from the construction member, wherein in the step of attaching the temporary structure, the first protruding member is inserted and then the second protruding member is inserted into each of the through holes provided in the construction member. Effect of the Invention

[0016] According to the temporary structure, the assembly structure for the temporary structure, and the building construction method of the present invention, it is possible to improve workability during construction of a building and during maintenance after construction. It is also possible to realize a temporary structure that is highly stable in a small space and can be easily attached and removed. [Brief description of the drawings]

[0017] [Figure 1] This is a perspective view showing the state in which the temporary handrail is attached to the building main body. [Figure 2A] FIG. [Figure 2B] FIG. 11 is a perspective view showing the panel mounting bracket as viewed from a different angle. [Diagram 3] FIG. 4 is a perspective view showing a second panel mounting fitting. [Figure 4] FIG. [Diagram 5] This is a perspective view showing the state in which a temporary handrail (support body) is attached to a beam. [Figure 6] FIG. 2 is a perspective view from a different angle. [Figure 7] FIG. 13 is an exploded perspective view of the panel mounting bracket and the temporary handrail (second support body). [Figure 8] 13 is a perspective view showing the state in which a second support body is attached to the panel mounting bracket. FIG. [Figure 9] This is a process diagram showing a building construction method using a temporary structure. [Figure 10A] 1 is a schematic diagram showing the state in which a panel mounting bracket is attached to a building body. FIG. [Figure 10B] FIG. 13 is a schematic diagram showing the state in which temporary handrails are attached to beams and panel mounting brackets. [Figure 10C] FIG. 2 is a schematic diagram showing how a building panel is attached to a panel mounting bracket. [Figure 10D] FIG. 2 is a schematic diagram showing the state in which the architectural panel is attached. [Figure 10E] FIG. 13 is a schematic diagram showing the state after the temporary handrail has been removed. [Figure 11] This is an oblique view showing the state in which temporary handrails and temporary boards are attached to the main body of the building. [Figure 12] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, an embodiment of the present invention will be described with reference to FIGS. This embodiment relates to an invention characterized in that it is a temporary structure for preventing falls that is used during construction of a building and is attached to the main body of the building, comprising a support member extending a long length in the vertical direction, a base member that is attached to the lower end of the support member and abuts the upper surface of the construction member (beam) of the main body of the building, and a first protruding member and a second protruding member that are spaced apart in the longitudinal direction of the base member, each protruding downward from the base member and each being inserted into a through hole that is spaced apart on the upper surface of the construction member, and the first protruding member protrudes longer than the second protruding member. In this embodiment, the "temporary handrail" corresponds to the temporary structure.

[0019] In the temporary handrail assembly structure of this embodiment, as shown in FIG. 1, a temporary handrail 20 is assembled to a beam B1 of a building body B or a panel mounting bracket 1 provided on the beam B1 during construction of a building. More specifically, the temporary handrail 20 is attached to a beam B1 extending longitudinally along the frontage direction of the building main body B at a position (beam end) close to a column B4 of the building main body B. Then, with the temporary handrail 20 assembled, the architectural panel 30 can be attached to the building main body B (panel mounting fittings 1, 10). The above assembly structure will now be described in detail.

[0020] The panel mounting bracket 1 and the second panel mounting bracket 10 are, as shown in FIG. 1, fixed to beams B1 of a building body B, and are joint brackets used when mounting a construction panel 30 to the building body B. The panel mounting bracket 1 also functions as a joint bracket for temporarily setting up a temporary handrail 20, and is used to temporarily set up the temporary handrail 20 in particular in small spaces. More specifically, the panel mounting brackets 1 are fixed to the upper surface of the H-shaped steel beams B1 on the upper floors of the building body B, and are arranged in a plurality at intervals in the frontage direction of the building body B. The second panel mounting metal fittings 10 are arranged at positions overlapping with the panel mounting metal fittings 1 in the vertical direction, fixed to the bottom surface of the beam B1, and arranged in plurality at intervals in the frontage direction.

[0021] As shown in Figures 2A and 2B, the panel mounting bracket 1 is a member having a generally L-shaped cross section, and is mainly composed of a bottom wall portion 1a that abuts against the upper flange portion B2 of the beam B1 and protrudes further outward from the building body B than the beam B1, an outer wall portion 1b that extends upward continuously from the outer end portion of the bottom wall portion 1a, and a pair of reinforcing wall portions 1c that extend upward continuously from both widthwise ends of the bottom wall portion 1a and connect the bottom wall portion 1a and the outer wall portion 1b. A mounting hole 2 for fixing to a beam B1 is formed in the bottom wall portion 1a of the panel mounting bracket 1. By using the mounting hole 2, a temporary handrail 20 can be detachably attached. Further, the outer wall portion 1b is formed with a panel mounting hole 3 for detachably mounting a building panel 30 therein.

[0022] The mounting holes 2 are through holes that penetrate the bottom wall portion 1a in the up-down direction, and are formed in a plurality at intervals in the width direction of the panel mounting bracket 1. The panel mounting bracket 1 is fixed to the beam B1 by tightening the fixing bolt 4 with a nut while the mounting hole 2 and the through hole B2a formed in the upper surface of the beam B1 are in communication with each other in the vertical direction. In addition, the temporary handrail 20 is attached to the panel mounting bracket 1 by tightening the nut of the fixing bolt 4 while the mounting hole 2 and the mounting hole 26 formed in the temporary handrail 20 (metal fitting base member 25) shown in Figure 6 are connected in the vertical direction. More specifically, as shown in FIG. 6, the mounting hole 2 of the panel mounting bracket 1, the fixing nut 5, the mounting hole 26 of the temporary handrail 20, and the fixing nut 6 are connected in the vertical direction and fastened by the fixing bolt 4.

[0023] As shown in FIGS. 2A and 2B, the panel mounting holes 3 are cut-out holes formed in the upper end portion of the outer wall portion 1b, and are formed as a pair with a space therebetween in the width direction of the panel mounting bracket 1. The panel mounting hole 3 is a hole into which a mounting shaft 33 at the lower end of the building panel 30 shown in FIG. 10C is fitted from above.

[0024] The panel mounting hole 3 is composed of a first hole portion 3a which serves as a guide hole for guiding the mounting shaft 33, and a second hole portion 3b which is formed continuously from the first hole portion 3a and serves as a fitting hole for fitting the mounting shaft 33 inside the panel mounting hole 3. The first hole portion 3a is a guide hole having a generally inverted trapezoidal shape, and is cut out while being inclined so as to become narrower from the upper end of the outer wall portion 1b downward. The second hole portion 3b is a substantially semicircular fitting hole having an edge for removably fitting the mounting shaft 33, and is cut out downwardly, continuing from the first hole portion 3a, with a predetermined width. With the above-described configuration, the architectural panel 30 can be easily attached to and detached from the panel mounting bracket 1 from above and below.

[0025] As shown in Figure 3, the second panel mounting bracket 10 is a stepped member and includes an upper wall portion 10a that abuts against the lower flange portion B3 of the beam B1 and protrudes further outward from the building main body B than the beam B1, a first outer wall portion 10b extending downward from the outer end of the upper wall portion 10a, a bottom wall portion 10c that protrudes outward from the lower end of the first outer wall portion 10b to the outside of the building main body B, a second outer wall portion 10d extending downward from the outer end of the bottom wall portion 10c, and a pair of reinforcing wall portions 10e that extend downward from both widthwise ends of the upper wall portion 10a and connect the upper wall portion 10a to the second outer wall portion 10d. The second panel mounting bracket 10 also includes a third outer wall portion 10f protruding upward from the upper surface of the bottom wall portion 10c, and a pair of second reinforcing wall portions 10g extending from both widthwise ends of the third outer wall portion 10f toward the building main body B and connecting the third outer wall portion 10f, the first outer wall portion 10b, and the bottom wall portion 10c. An upper wall portion 10a of the second panel mounting bracket 10 is formed with a mounting hole 11 for fastening to the beam B1. In addition, a panel fixing hole 12 for fixing the architectural panel 30 is formed in the second outer wall portion 10d, and a panel mounting hole 13 for removably mounting the architectural panel 30 is formed in the third outer wall portion 10f.

[0026] The mounting holes 11 are through holes similar to the mounting holes 2, and a plurality of them are formed at intervals in the width direction of the second panel mounting metal fitting 10. The second panel mounting bracket 10 is fixed to the beam B1 by tightening the fixing bolt 14 with the mounting hole 11 and the second through hole B3a formed in the bottom surface of the beam B1 connected in the vertical direction.

[0027] As shown in Figure 3, the panel fixing holes 12 are through holes that penetrate the second outer wall portion 10d in the width direction of the building main body B, and are formed in multiple spaces in the width direction of the second panel mounting bracket 10. The building panel 30 is fixed to the building body B by bolting the fixing nuts 35 at the upper end of the building panel 30 shown in FIG. 10D in a state of communication with the panel fixing holes 12.

[0028] Panel mounting hole 13 is a cut-out hole similar to panel mounting hole 3 described above, and is formed as a pair with a space therebetween in the width direction of second panel mounting metal fitting 10. The panel mounting hole 13 is a hole into which a second mounting shaft 34 at the lower end of the building panel 30 shown in FIG. 10C is fitted from above. The panel mounting hole 13 is mainly composed of a first hole portion 13a which serves as a guide hole and a second hole portion 13b which serves as a fitting hole for fitting the second mounting shaft 34 in the panel mounting hole 13. With the above-described configuration, a plurality of architectural panels 30 can be attached to a plurality of panel mounting brackets 1, 10 so as to be supported in the vertical direction.

[0029] As shown in Figures 4-8, the temporary handrail 20 is a temporary structure used to prevent falls during construction of a building, and is attached before attaching the architectural panel 30 to the building main body B and removed after the architectural panel 30 is attached. The temporary handrail 20 is mainly composed of a support body 20A attached to the upper part of the beam B1, a second support body 20B attached to the upper part of the beam B1 via a panel mounting bracket 1, and a connecting body 20C connecting the upper and central parts of the support body 20A and the second support body 20B. The connector 20C is formed as a plate-like long body and extends along the longitudinal direction of the beam B1. As shown in Fig. 1, the connectors 20C are arranged in a line along the longitudinal direction of the beam B1. More specifically, an end of one connector 20C and an end of the other connector 20C are arranged to overlap each other, and the overlapping ends are supported by a support body (second support body 20B).

[0030] As shown in Figures 5 and 6, the support body 20A is mainly composed of a support member 21 extending in the vertical direction, a beam base member 22 provided at the lower end of the support member 21 and abutting the upper surface of the beam B1, and a first protruding member 23 and a second protruding member 24 provided at intervals in the longitudinal direction of the beam base member 22, each protruding downward from the beam base member 22, and each being inserted into a through hole B2a (B3a) provided at intervals on the beam B1.

[0031] The support member 21 is a long hollow body with a rectangular cross section. An engagement shaft 21a is provided in the upper and central parts of the support member 21 for detachably engaging with an engagement hole 20Ca provided at the end of the connector 20C. The engagement shaft 21a protrudes from the outer surface of the support member 21 toward the inside of the building main body B.

[0032] The beam base member 22 is a member for ensuring the attachment strength (bending strength) of the temporary handrail 20, and is in contact with the upper surface of the beam B1. In detail, the beam base member 22 is mainly composed of a pair of first base portions 22a protruding on both sides in the width direction from the lower end of the support member 21, a second base portion 22b protruding from the lower end of the support member 21 toward the inside of the building main body B, and a pair of reinforcing base portions 22c protruding on both sides in the width direction from the second base portions 22b and connecting the first base portions 22a and the second base portions 22b.

[0033] The pair of first base portions 22a, the second base portion 22b, and the pair of reinforcing base portions 22c are each made of a plate-like member, and are in contact with the upper surface of the beam B1. First and second protruding members 23, 24 are welded to the pair of first base portions 22a at positions facing the through hole B2a (B3a) of the beam B1. The second base portion 22b is disposed between the outer ends of the pair of first base portions 22a, and is also disposed between the first and second protruding members 23, 24. The pair of reinforcing base portions 22c are inclined and widened in the vertical direction from the support member 21 side to the beam B1 side.

[0034] The first protruding member 23 and the second protruding member 24 are rod-shaped members that are long in the vertical direction, and the first protruding member 23 protrudes longer than the second protruding member 24. The tip portions 23a, 24a of the first protruding member 23 and the second protruding member 24 respectively have a tapered shape and are formed so as to become thinner toward the tip. Furthermore, the portion of the first protruding member 23 (tip portion 23a) that is the starting position of the tapered shape is disposed at a position farther from the beam base member 22 than the tip of the second protruding member 24.

[0035] In the above configuration, the first protruding member 23 and the second protruding member 24 are each inserted into a through hole B2a formed at a distance in the upper flange portion B2 of the beam B1, and are each inserted into a second through hole B3a formed at a distance in the lower flange portion B3. Therefore, it is possible to realize a temporary handrail 20 that is highly stable and can be easily attached and removed.

[0036] As shown in Figures 7 and 8, the second support body 20B is mainly composed of a support member 21 extending longitudinally in the vertical direction, and a bracket base member 25 that is provided at the lower end of the support member 21 and is attached in abutment against the upper surface of the panel mounting bracket 1.

[0037] The metal fitting base member 25 is attached to the panel mounting metal fitting 1 in the vertical direction, and is held so as to abut against the panel mounting metal fitting 1 in the width direction of the building main body B. In detail, the metal fittings base member 25 is mainly composed of a pair of first base portions 25a protruding on both sides in the width direction from the lower end of the support member 21, a second base portion 25b protruding from the lower end of the support member 21 to the outside of the building main body B, and a pair of reinforcing base portions 25c protruding on both sides in the width direction from the second base portions 25b and connecting the first base portions 25a and the second base portions 25b.

[0038] The pair of first base portions 25a are in contact with the bottom wall portion 1a of the panel mounting bracket 1 via fixing nuts 5 in the vertical direction. In the pair of first base portions 25a, mounting holes 26 for mounting to the panel mounting bracket 1 are formed at positions facing the mounting holes 2 of the panel mounting bracket 1, respectively.

[0039] The second base portion 25b protrudes toward the outer wall portion 1b of the panel mounting bracket 1 and abuts against the outer wall portion 1b in the width direction of the building main body B. The second base portion 25b also abuts against the bottom wall portion 1a in the up-down direction. More specifically, the second base portion 25b abuts against a central portion between the pair of panel mounting holes 3 of the outer wall portion 1b. The pair of reinforcing base portions 25c are made of substantially triangular plate-like members, and are inclined and widened in the vertical direction from the support member 21 side toward the panel mounting metal fitting 1 side.

[0040] As shown in Figures 1, 10C and 10D, the architectural panel 30 is a rectangular plate-shaped component that constitutes a building, and more specifically, an exterior wall panel, which is mainly composed of a rectangular plate-shaped panel frame 31 and a finishing surface material 32 fixed to the surface of the panel frame 31. The architectural panel 30 is not particularly limited to an "exterior wall panel", but may be a "wain wall panel", a "roof panel", or a "eaves panel", and various types of architectural panels can be used.

[0041] A mounting shaft 33 and a second mounting shaft 34 are provided protruding from the lower end on the rear surface of the panel frame 31 for detachably mounting the panel frame 31 to panel mounting fittings 1, 10 (fittings B4a, B4b provided on the pillar B4), respectively. Furthermore, a fixing nut 35 for fixing to a second panel mounting metal fitting 10 (second metal fitting B4b) is provided so as to protrude from the upper end portion on the rear surface of the panel frame 31. These mounting shafts 33, 34 and fixing nuts 35 are arranged in pairs at both ends of the building panel 30 in the width direction.

[0042] As shown in FIGS. 10C and 10D, the mounting shaft 33 is a hook-type shaft member that fits into the edge of the panel mounting hole 3. The second mounting shaft 34 is similarly fitted into the edge of the panel mounting hole 13 .

[0043] When attaching the mounting shaft 33 from above into the panel mounting hole 3 of the panel mounting bracket 1, as shown in FIG. 10C, the first extension portion 33a is formed to a size that allows it to be inserted into the panel mounting hole 3, while the second extension portion 33b is formed to a size that does not allow it to be inserted into the panel mounting hole 3. That is, the panel frame 31 and the second extending portion 33b sandwich the panel mounting hole 3, so that the mounting shaft 33 fits into the edge of the panel mounting hole 3. The second mounting shaft 34 is also fitted into the edge of the panel mounting hole 13 in the same manner. As shown in FIG. 10D, the fixing nut 35 is bolted in a state in which it communicates with the panel fixing hole 12 of the second panel mounting bracket 10.

[0044] In the above configuration, when fixing the architectural panel 30 to each panel mounting bracket 1, 10, first, as shown in Figures 10C and 10D, the mounting shafts 33, 34 at the lower end of the architectural panel 30 are fitted into the panel mounting holes 3, 13. Then, the architectural panel 30 is pulled toward the building body B, and the architectural panel 30 is fixed with a fixing bolt 36 in a state where the fixing nut 35 at the upper end of the architectural panel 30 is connected to the panel fixing hole 12 of the second panel mounting bracket 10 provided separately. With the above-described configuration, the architectural panel 30 can be easily attached to the panel mounting brackets 1, 10 from above and below.

[0045] In the above configuration, as shown in Figures 2A and 2B, the panel mounting hole 3 of the panel mounting bracket 1 is positioned outside the building main body B relative to the mounting hole 2, and is formed at a higher position than the mounting hole 2. Therefore, it is possible to prevent the portion where the panel mounting bracket 1 and the temporary handrail 20 are connected from interfering with each other, and the portion where the panel mounting bracket 1 and the architectural panel 30 are connected.

[0046] <Building construction method using temporary structures> Next, a building construction method using the temporary handrail 20 will be described with reference to FIG. Specifically, as shown in Figs. 10A-10E, a building construction method will be described in which a temporary handrail 20 is temporarily installed on a beam B1 and panel mounting brackets 1 and 10 provided on a building body B, and a building panel 30 is attached.

[0047] The building construction method starts with a process (step S1) of attaching a plurality of panel mounting brackets 1, 10 to beams B1 of a building body B at intervals in the frontage direction of the building body B, as shown in FIG. Specifically, as shown in FIG. 10A, the panel mounting metal fitting 1 is fixed to the top surface of the beam B1 with a fixing bolt 4 (fixing nut 5), and the second panel mounting metal fitting 10 is fixed to the bottom surface of the beam B1 with a fixing bolt 14. At this time, the panel mounting metal fitting 1 and the second panel mounting metal fitting 10 are positioned so as to overlap in the vertical direction.

[0048] Thereafter, the temporary handrails 20 are attached to the beams B1 of the building body B and the panel mounting brackets 1 (step S2). Specifically, as shown in Figures 1 and 10B, the temporary handrail 20 is attached so as to be supported by a predetermined through hole B2a formed in the beam B1 and a predetermined panel mounting bracket 1 provided on the beam B1. More specifically, the first and second protruding members 23, 24 of the support body 20A are inserted into the through holes B2a, respectively. At this time, the tip portions 23a, 24a of the first and second protruding members 23, 24 are also inserted into the second through holes B3a in the lower part of the beam B1, respectively. More specifically, the longer first protruding member 23 is first inserted through the through hole B2a located closer to the pillar B4 than the second protruding member 24. Then, the second protruding member 24 is inserted. Then, the metal fitting base member 25 of the second support body 20B is attached to the panel mounting metal fitting 1. At this time, with the pair of mounting holes 2 formed in the panel mounting metal fitting 1 and the pair of mounting holes 26 formed in the metal fitting base member 25 communicating with each other, the fixing bolt 4 partially protruding upward from the mounting holes 2, 26 is nut-tightened, thereby attaching the temporary handrail 20 to the panel mounting metal fitting 1.

[0049] Thereafter, as shown in FIG. 10C, the architectural panel 30 is attached to the panel mounting holes 3, 13 of the panel mounting brackets 1, 10 (step S3). When attaching the architectural panel 30, first, as shown in Fig. 10C, the mounting shafts 33, 34 at the lower end of the architectural panel 30 are fitted into the panel mounting holes 3, 13. Then, the architectural panel 30 is pulled toward the building main body B, and as shown in Fig. 10D, the architectural panel 30 is fixed with a fixing bolt 36 in a state where the fixing nut 35 at the upper end of the architectural panel 30 is connected to the panel fixing hole 12 of the second panel mounting bracket 10 provided separately. When attaching the architectural panel 30, the temporary handrail 20 extending in the frontage direction relative to the building main body B can be effectively used as a positioning member.

[0050] Thereafter, as shown in FIG. 10E, the temporary handrail 20 bolted to the panel mounting metal fitting 1 is removed (step S4), and this work process is completed.

[0051] The above-described building construction method can realize a building construction method that improves workability. More specifically, a temporary handrail that can be easily attached and detached and has excellent stability can be assembled at the end of the long beam B1 that is close to the column B4.

[0052] <Second embodiment> Next, a second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, the "temporary handrail" and the "temporary board" correspond to the temporary structures. In addition, since the temporary handrail of the second embodiment has a similar configuration to the above-mentioned temporary handrail 20, a description thereof will be omitted.

[0053] The temporary board 120 of the second embodiment is a temporary structure for preventing falls used during construction of a building, which is attached before attaching the architectural panel 30 to the building main body B and is removed after the architectural panel 30 is attached. The temporary board 120 is attached to the lower portion of the temporary handrail 20 (support member 21), is disposed inside the building main body B relative to the temporary handrail 20, and is supported on the floor panel B5 of the building main body B. It may also be supported on the beam B1.

[0054] Specifically, the temporary board 120 is mainly composed of a pair of support members 121 that are attached to the temporary handrail 20 (support members 21) and extend toward the inside of the building main body B, and a connecting member 122 that connects the extended ends of the pair of support members 121. The support member 121 is formed as a long body having a rectangular cross section, and the connecting member 122 is formed as a plate-like long body (baseboard).

[0055] A mounting member 123 for detachably mounting the support member 121 to the support member 21 is provided at the base end of the support member 121. Further, a gripping member 124 is provided at the extending end of the support member 121 for detachably gripping the end of the connecting member 122 in the longitudinal direction.

[0056] As shown in FIG. 12, the mounting member 123 is a member capable of holding the support member 21 inserted therein, and is mainly composed of a pair of side wall portions 123a protruding from the base end of the support member 121 toward the support member 21, and a connecting wall portion 123b connecting the protruding ends of the pair of side wall portions 123a. A pressing bolt 123c for pressing the support member 21 inserted inside the mounting member 123 from the side is attached to the connecting wall portion 123b. By pressing the pressure bolt 123c against the side surface of the support member 21, the mounting member 123 can hold the support member 21. Therefore, the temporary board 120 (support member 121) can be attached to the temporary handrail 20 (support member 21) at any desired height.

[0057] The gripping member 124 is a member that is extendable and contractible with respect to the support member 121 and is capable of gripping the connecting member 122 . The gripping member 124 is inserted inside the support member 121 and is mainly composed of an extension portion 124a extending expandably from the extended end of the support member 121, a first gripping portion 124b protruding downward from the extended end of the extension portion 124a, and a second gripping portion 124c protruding downward from the extended portion of the support member 121. A pressing bolt 124d is attached to the extending end of the support member 121 for pressing the expandable portion 124a inserted inside the support member 121 from the side. By pressing the pressure bolt 124d against the side surface of the expandable portion 124a, the expandable portion 124a can be held with respect to the support member 121 at any extension length. Therefore, the gripping member 124 can grip the connecting member 122 regardless of the thickness of the connecting member 122 .

[0058] With the above-mentioned configuration, the temporary board 120 can be used as a measure to prevent construction parts and the like from falling before and during the installation of the architectural panel 30. In addition, the temporary board 120 is attached to the lower portion of the temporary handrail 20, and is supported by the floor panel B5 in a state where it is positioned inside the building main body B relative to the temporary handrail 20. Therefore, the temporary handrail 20 is more stably supported in the projection direction of the building main body B (the bending strength of the temporary handrail 20 is increased).

[0059] 9, the step of attaching the temporary plate 120 to the temporary handrail 20 is preferably carried out after the step of attaching the temporary handrail 20 in step S2. Alternatively, the temporary plate 120 may be attached to the temporary handrail 20 in advance, and the temporary handrail 20 with the temporary plate 120 attached thereto may be attached in step S2.

[0060] <Other embodiments> In the above embodiment, as shown in FIG. 1, the temporary handrail 20 is described as being equivalent to the "temporary structure", but this is not particularly limited and can be changed. For example, a temporary scaffold may be used instead of a temporary handrail, or a temporary ladder, a temporary wall, or the like may be used.

[0061] In the above embodiment, as shown in FIG. 1, the temporary handrail 20 (support body 20A) is attached to a beam B1 of the building main body B, but is not particularly limited thereto and may be attached to a specified construction member of the building main body B. Similarly, the panel mounting fittings 1, 10 may also be attached to a predetermined construction member of the building body B.

[0062] In the above embodiment, as shown in Figures 1 and 4, the temporary handrail 20 comprises a support body 20A and a second support body 20B, but is not particularly limited and may instead comprise a pair of support bodies 20A. As shown in FIG. 1, a "handrail 20" having a support body 20A is installed in the long beam B1 at a position close to the column B4, and it is preferable to install a "handrail (not shown)" having a pair of second support bodies 20B in other positions. With the above configuration, the "temporary handrail 20" can be used to easily attach and detach the beam B1 at a position close to the column B4. In other positions, the "handrail (not shown)" can be used to ensure greater stability.

[0063] In the above embodiment, as shown in Figures 4-6, the first protruding member 23 and the second protruding member 24 are spaced apart in the longitudinal direction of the beam base member 22, but this is not particularly limited and they may also be spaced apart in the width direction of the beam base member 22. In other words, the first and second protruding members 23, 24 may be provided so as to be aligned in the width direction of the main body B of the building.

[0064] In the above embodiment, as shown in Figures 1 and 10D, the panel mounting fittings 1, 10 were joining fittings used when attaching an architectural panel 30 (exterior wall panel) to the building main body B, but the present invention can be modified without being particularly limited to exterior wall panels. For example, the panel mounting bracket 1 may be a joining bracket used when mounting various architectural panels such as a "waist wall panel," a "roof panel," or a "eaves panel" to the building body B.

[0065] In the above embodiment, as shown in Figures 7 and 8, the temporary handrail 20 is attached to the panel mounting bracket 1 by tightening the fixing bolt 4 with the mounting hole 2 of the panel mounting bracket 1 and the mounting hole 26 of the temporary handrail 20 in communication with each other, but this can be modified without any particular limitation. In other words, there is no need to be any particular limitation on the engagement relationship between the "mounting hole" and the "fixing bolt" and "fixing nut." In other words, it is sufficient that the mounting portion 26 of the temporary handrail 20 is detachably attached to the mounting portion 2 provided on the panel mounting bracket 1.

[0066] In the above embodiment, the temporary structure, the assembly structure for the temporary structure, and the building construction method according to the present invention have been mainly described. However, the above embodiment is merely an example for facilitating understanding of the present invention, and does not limit the present invention. The present invention can be modified or improved without departing from the spirit of the present invention, and the present invention naturally includes equivalents thereof. [Explanation of symbols]

[0067] B. Main building B1 Beam (construction material) B2 Upper flange B2a through hole B3 Lower flange B3a 2nd through hole B4 pillar B4a Fittings B4b 2nd fitting B5 Floor Panel 1 Panel mounting bracket 1a Bottom wall 1b Outer wall 1c Reinforced wall 2 Mounting holes (mounting part) 3 Panel mounting holes (panel mounting part) 3a 1st hole 3b 2nd hole 4 Fixing bolt (fixing member) 5, 6 Fixing nut (fixing member) 10 Second Panel Mounting Bracket 10a Upper wall 10b First outer wall part 10c Bottom wall 10d 2nd outer wall 10e Reinforced wall 10f 3rd outer wall 10g Second reinforcing wall 11 Mounting holes 12 Panel fixing holes 13 Panel mounting holes 13a 1st hole 13b 2nd hole 14 Fixing bolt 20 Temporary handrails (temporary structures) 20A strut body 20B 2nd pillar body 20C Concatenation 20Ca engagement hole 21 Support member 21a Engagement shaft 22 Beam base member (base member) 22a First base part 22b Second base part 22c Reinforced base 23 First protruding member 23a, 24a tip 24 Second protruding member 25 Metal fitting base material 25a 1st base part 25b Second base part 25c Reinforced base 26 Mounting hole (mounting part) 30 Building Panels 31 Panel Frame 32 Finishing Surface Materials 33 Mounting shaft 33a 1st extension part 33b Second extension part 34 Second mounting axis 35 Fixing nut 36 Fixing bolt 120 Temporary Board (Second Temporary Structure) 121 Support member 122 Connecting member 123 Mounting material 123a Side wall part 123b Connecting wall 123c Press bolt 124 Gripping member 124a Telescopic part 124b 1st grip part 124c 2nd grip part 124d Press bolt

Claims

1. A temporary structure for preventing falls that is used during construction of a building and is attached to the main body of the building, A support member extending in a vertical direction; A base member provided at the lower end of the support member and abutting against an upper surface of the construction member of the building body; a first protruding member and a second protruding member provided at an interval in the length direction or width direction of the base member, protruding downward from the base member, and inserted into through holes provided at an interval on the upper surface of the construction member; The first protruding member protrudes to be longer than the second protruding member, a protruding tip portion of each of the first protruding member and the second protruding member has a tapered shape and is formed so as to become thinner toward the tip, A temporary structure, characterized in that a portion of the first protruding member that is the starting position of the tapered shape is located farther from the base member than the tip of the second protruding member.

2. A temporary structure for preventing falls that is used during construction of a building and is attached to the main body of the building, A support member extending in a vertical direction; A base member provided at the lower end of the support member and abutting against an upper surface of the construction member of the building body; a first protruding member and a second protruding member provided at an interval in the length direction or width direction of the base member, protruding downward from the base member, and inserted into through holes provided at an interval on the upper surface of the construction member; The first protruding member protrudes to be longer than the second protruding member, The base member abuts against an upper surface of a beam of the building body, The first protruding member and the second protruding member are The through holes are respectively inserted into the through holes formed at intervals on the upper portion of the beam, and A temporary structure characterized in that the first and second through holes are formed at intervals in the lower part of the beam and are inserted into second through holes arranged at positions corresponding to the first and second through holes.

3. A temporary structure for preventing falls that is used during construction of a building and is attached to the main body of the building, A support member extending in a vertical direction; A base member provided at the lower end of the support member and abutting against an upper surface of the construction member of the building body; a first protruding member and a second protruding member provided at an interval in the length direction or width direction of the base member, protruding downward from the base member, and inserted into through holes provided at an interval on the upper surface of the construction member; The first protruding member protrudes to be longer than the second protruding member, A temporary structure, characterized in that the first protruding member and the second protruding member are integral with the base member (except for a structure in which the second protruding member is detachable from the base member).

4. An assembly structure for a temporary structure for preventing falls that is used during construction of a building and is attached to the main body of the building, The temporary structure includes: A support member extending in a vertical direction; A base member provided at the lower end of the support member and abutting against an upper surface of the construction member of the building body; a first protruding member and a second protruding member provided at an interval in the length direction or width direction of the base member, protruding downward from the base member, and inserted into through holes provided at an interval on the upper surface of the construction member; The first protruding member protrudes to be longer than the second protruding member, The temporary structure includes: A support body attached to the upper part of the beam; A second support body is attached to the upper part of the beam via a panel mounting bracket used when attaching a building panel; a connecting body connecting the upper portion of the support body and the upper portion of the second support body, The support body includes the support member, a beam base member serving as the base member, the first protruding member, and the second protruding member, An assembly structure for a temporary structure, characterized in that the second support body has the support member and a fitting base member provided at the lower end of the support member and attached to the upper surface of the panel mounting fitting.

5. The support column and the second support column are arranged at an interval in the frontage direction of the building main body, The support body is attached to a beam end portion of the beam extending long along the frontage direction that is adjacent to a column of the building main body, 5. The temporary structure assembly structure according to claim 4, wherein the first protruding member is inserted into the through hole at a position closer to the pillar than the second protruding member.

6. The metal fitting base member of the second support body is The panel mounting bracket is attached to a mounting portion provided on the inside of the building body relative to a panel mounting portion to which the architectural panel is attached, 6. The assembly structure for a temporary structure according to claim 4 or 5, characterized in that, when the temporary structure is attached to the building main body, it is located inside the building main body relative to the attachment position of the architectural panel.

7. A building construction method utilizing a temporary structure for preventing falls that is used during construction of a building and is attached to the main body of the building, comprising: The temporary structure includes: A support member extending in a vertical direction; A base member provided at the lower end of the support member and abutting against an upper surface of the construction member of the building body; a first protruding member and a second protruding member provided at an interval in the length direction or width direction of the base member, protruding downward from the base member, and inserted into through holes provided at an interval on the upper surface of the construction member; The first protruding member protrudes to be longer than the second protruding member, The building construction method includes: A step of attaching the temporary structure to the construction member; A step of attaching a construction panel to a portion of the construction member that is located outside the building body relative to the temporary structure; and removing the temporary structure from the construction member, A building construction method characterized in that, in the process of attaching the temporary structure, the first protruding member is inserted into each of the through holes provided in the construction member, and then the second protruding member is inserted into each of the through holes provided in the construction member.

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