JP2022083661A - Temporary structure, temporary structure assembly structure and building construction method - Google Patents

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

The present invention relates to a temporary structure, an assembling structure of the temporary structure, and a building construction method, and in particular, a temporary structure for preventing a fall, which is used during the construction of a building and is attached to the building body, and an assembling structure of the temporary structure. And about the building construction method.

Conventionally, structures such as scaffolding and handrails have been temporarily installed in order to perform construction work from the outdoor side during construction of a building or maintenance after construction.
In addition, a dedicated scaffolding (dedicated handrail) for narrow areas is temporarily installed during construction or maintenance of a building that is built close to an adjacent structure.

Although it is possible to perform construction work from the outdoor side in a narrow space by using the above-mentioned dedicated scaffolding, it was necessary to raise the dedicated scaffolding from the ground in the gap between the building to be worked and the adjacent structure. , There was a risk that the size of the building would be restricted. Therefore, a construction method that does not require the dedicated scaffolding to be raised from the ground has been studied.
As a temporary structure for preventing falls instead of the above-mentioned dedicated scaffolding, a temporary handrail that can be temporarily installed on a construction member (beam made of H-shaped steel) of a building body has been proposed, for example, as in Patent Documents 1 and 2. ing.

Japanese Unexamined Patent Publication No. 2010-71042 Japanese Unexamined Patent Publication No. 2010-185185

Under such circumstances, there is a demand for a temporary structure that is more stable than existing temporary handrails and can be easily attached and detached, and it is possible to improve workability by using the temporary structure. I was asked.
In particular, there has been a demand for a construction technique that effectively utilizes the temporary structure before and when the building panel (for example, an outer wall panel) is attached to the building body as a fall prevention measure.

More specifically, in the temporary handrail described in Patent Document 1, a support member that is long in the vertical direction, a base member that is provided at the lower end of the support member and abuts on the upper surface of the beam of the building body, and a base member. It comprises a pair of projecting members that project downward and are inserted through through holes provided in the upper and lower parts of the beam.
With the above configuration, a temporary handrail can be easily temporarily installed by using the beam of the building body.
On the other hand, since it is necessary to insert a temporary handrail (a pair of protruding members) through both the upper part and the lower part of the beam for temporary installation, there is a risk that the temporary work cannot be performed efficiently for the worker inside the building body. there were. For example, the operator had to fumble to insert a pair of projecting members at the same time.

Further, in the temporary handrail described in Patent Document 2, the support member, the base member provided at the lower end of the support member and in contact with the upper surface of the beam, and the base member protruding downward from the base member and provided at the upper and lower parts of the beam. It comprises a protruding member that is inserted through the through hole. Further, a clamp member for fixing the base member is provided on the upper part of the beam.
In the case of the above configuration, the operator does not insert the pair of projecting members by fumbling as in Patent Document 1, but the work of separately attaching and detaching the clamp member is required. Further, the pair of projecting members is not inserted through both the upper part and the lower part of the beam, and there is a possibility that the stability of the temporary handrail is inferior.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a temporary structure, an assembly structure of the temporary structure, and a building construction method for improving workability.
Another object of the present invention is to provide a temporary structure which is excellent in stability in a narrow space and can be easily attached and detached, an assembly structure of the temporary structure, and a building construction method.

According to the temporary structure of the present invention, the problem is a temporary structure for preventing a fall, which is used during the construction of a building and is attached to the main body of the building, and has a support column member extending in a long direction in the vertical direction. , A base member provided at the lower end of the support column member and in contact with the upper surface of the construction member of the building body, and the base member provided at intervals in the length direction or the width direction of the base member, and downward from the base member. A first projecting member and a second projecting member, which project toward each other and are inserted into through holes provided at intervals on the upper surface of the construction member, are provided, and the first projecting member is the first projecting member. 2 The problem is solved by projecting so as to be longer than the projecting member.
With the above configuration, it is possible to realize a temporary structure with improved workability.
More specifically, the temporary structure comprises a strut member, a base member, and a first projecting member and a second projecting member that project downward from the base member and are inserted into through holes provided on the upper surface of the beam, respectively. Since the first projecting member protrudes longer than the second projecting member, the work of inserting the temporary structure (first and second projecting members) into the through hole of the beam becomes easy. .. That is, since the worker at the site can insert the longer first projecting member first through the through hole of the beam and then insert the second projecting member, the two projecting members can be inserted as in the conventional case. The work of attaching the temporary structure becomes easier as compared with the case where the projecting members are inserted at the same time.
In particular, in a narrow space, the worker temporarily installs the temporary handrail by groping, which greatly improves the efficiency of the installation work of the temporary structure.

At this time, the protruding tip portions of the first protruding member and the second protruding member each have a tapered shape, and are formed so as to become thinner toward the tip, respectively, and the first protruding member has a tapered shape. It is preferable that the portion to be the start position is arranged at a position farther from the base member than the tip of the second protruding member.
As described above, since the protruding tips 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 holes of the beam. ..
Further, as described above, the portion of the first protruding member that becomes the start position of the tapered shape is arranged at a position farther from the base member than the tip of the second protruding member. Therefore, the operator inserts the first projecting member into the through hole of the beam, and then uses the thick portion (maximum width portion) of the first projecting member, which is not the tapered portion, as the guide portion while using the second projecting member. The member can be inserted. That is, the second protruding member can be inserted into another through hole in a stable state by bringing the thick portion of the first protruding member into contact with the edge portion of the through hole.

At this time, the base member abuts on the upper surface of the beam of the building body, and the first projecting member and the second projecting member are inserted into the through holes formed at intervals in the upper part of the beam. It is preferable that the beam is formed at a space below the beam and is inserted into a second through hole arranged at a position corresponding to the through hole.
As described above, the first and second projecting members are inserted into the through holes formed in the upper part of the beam, respectively, and are formed in the lower part of the beam and are arranged at the positions corresponding to the through holes. Since each of them is inserted into the holes, it is a temporary structure that can be easily attached and detached while having excellent stability as compared with the conventional ones (inventions of Patent Documents 1 and 2).

Further, the subject is an assembly structure of the temporary structure, in which the temporary structure includes a support column to be attached to the upper part of the beam and a panel mounting bracket used to attach a building panel on the upper part of the beam. A second strut body attached via the strut body and a connecting body connecting the upper portions of the strut body and the second strut body are provided, and the strut body includes the strut member and the base member. It has a beam base member, the first projecting member, and the second projecting member, and the second strut body is provided at the strut member and the lower end portion of the strut member, and the panel mounting bracket is provided. It is also solved by having a metal fitting base member attached to the upper surface of the above.
According to 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 the panel mounting bracket for attaching the building panel.
Therefore, by using a panel mounting bracket having a relatively high rigidity for mounting a building panel, the temporary structure can be more stable and temporarily installed.
Further, since the existing parts (panel mounting brackets) provided in advance on the beam are used, it is not necessary to separately attach other components, and the workability can be improved.
Further, a temporary structure (second support column) can also be used as a positioning member when the building panel is attached to the building body.

At this time, the pillar body and the second pillar body are arranged at predetermined intervals in the frontage direction of the building body, and the pillar body is a long beam extending along the frontage direction. Of these, it is preferable that the first projecting member is attached to the beam end portion close to the pillar of the building body, and the first projecting member is inserted into the through hole at a position closer to the pillar than the second projecting member.
Generally, a beam extending along the frontage direction of a building body is provided with a plurality of panel mounting brackets at intervals in the frontage direction, and among the beams, the beam end close to the pillar of the building body. The part is not provided with a panel mounting bracket. The reason is that when mounting a building panel (outer wall panel) to the building body, it is necessary to cover it from the outside including the pillar of the building body, and it is better to install the panel mounting bracket on the outer surface of the pillar instead of the beam end. This is because the building panels can be installed stably.
Therefore, with the above configuration, it is possible to continuously temporarily install a temporary structure for preventing falls without leaving a gap in the extending direction of the beam extending along the frontage direction, and the safety of the operator is achieved. Can be further enhanced. For example, when installing a temporary structure, stability is ensured by attaching a second strut body to the part where the panel mounting bracket can be used, and the strut at the beam end where the panel mounting bracket is not provided. The body can be attached.
Further, when attaching the column body at the beam end, the longer first projecting member is inserted into the through hole first at a position closer to the column than the second projecting member, so that the temporary structure is more efficient. A body (pillar) can be attached.

At this time, the metal fitting base member of the second support column is attached to the mounting portion provided inside the building body rather than the panel mounting portion to which the building panel is mounted in the panel mounting bracket, and the said. When the temporary structure is attached to the building body, it is preferable that the temporary structure is located inside the building body rather than the attachment position of the building panel.
With the above configuration, it is possible to avoid interference between the temporary structure attached to the building body and the building panel (for example, the outer wall panel). Therefore, the temporary structure can be effectively used as a fall prevention measure before and when the building panel is attached, and the workability can be further improved.
Further, with the above configuration, the temporary structure does not protrude outward from the building body, and the temporary structure can be easily attached and detached.

Further, the subject is a building construction method using the temporary structure, in which the step of attaching the temporary structure to the construction member and the position of the construction member outside the temporary structure are located outside the building body. In the step of attaching the temporary structure, including the step of attaching the building panel to the portion to be mounted and the step of removing the temporary structure from the construction member, each of the through holes provided in the construction member. On the other hand, it is also solved by a building construction method in which the second projecting member is inserted after the first projecting member is inserted.

According to the temporary structure, the assembly structure of the temporary structure, and the building construction method of the present invention, it is possible to improve the workability at the time of construction of the building and at the time of maintenance after construction.
In addition, it is possible to realize a temporary structure that is excellent in stability in a narrow space and can be easily attached and detached.

It is a perspective view which shows the state which the temporary handrail is attached to the building body. It is a perspective view which shows the panel mounting metal fittings. It is a perspective view which shows the panel mounting metal fittings seen from another angle. It is a perspective view which shows the 2nd panel mounting metal fittings. It is a perspective view which shows the temporary handrail. It is a perspective view which shows the state which attached the temporary handrail (post body) to the beam. It is a perspective view seen from another angle. It is an exploded perspective view of a panel mounting bracket and a temporary handrail (second support column body). It is a perspective view which shows the state which the 2nd support body is attached to the panel mounting metal fittings. It is a process drawing which shows the building construction method using a temporary structure. It is a schematic diagram which shows the state which the panel mounting metal fitting is attached to the building body. It is a schematic diagram which shows the state which the temporary handrail is attached to the beam and the panel mounting bracket. It is a schematic diagram which shows the state of attaching a building panel to a panel mounting bracket. It is a schematic diagram which shows the state which attached the building panel. It is a schematic diagram which shows the state which the temporary handrail is removed. It is a perspective view which shows the state which the temporary handrail and the temporary plate are attached to the building main body. It is a perspective view which shows the temporary plate.

Hereinafter, embodiments according to the present invention will be described with reference to FIGS. 1 to 12.
This embodiment is a temporary structure for fall prevention that is used during construction of a building and is attached to the main body of the building, and is provided at a support column member extending vertically in a long length and a lower end portion of the support column member. , The base member that abuts on the upper surface of the construction member (beam) of the building body and the base member are provided at intervals in the length direction of the base member. A first projecting member and a second projecting member, which are inserted into the through holes provided therein, are provided, and the first projecting member projects so as to be longer than the second projecting member. It relates to an invention as a main feature.
In this embodiment, the "temporary handrail" corresponds to the temporary structure.

In the assembly structure of the temporary handrail of the present embodiment, as shown in FIG. 1, during the construction of the building, the temporary handrail 20 is attached to the beam B1 of the building body B or the panel mounting bracket 1 provided on the beam B1. Can be assembled.
More specifically, the temporary handrail 20 is attached to a position (beam end) close to the pillar B4 of the building body B among the beams B1 extending long along the frontage direction of the building body B. ..
Then, with the temporary handrail 20 assembled, the building panel 30 can be attached to the building body B (panel mounting brackets 1 and 10).
Hereinafter, the above assembly structure will be described in detail.

As shown in FIG. 1, the panel mounting bracket 1 and the second panel mounting bracket 10 are joint fittings that are fixed to the beam B1 of the building body B and are used when mounting the building panel 30 to the building body B.
The panel mounting bracket 1 also functions as a joining bracket for temporarily installing the temporary handrail 20, and is used for temporarily installing the temporary handrail 20 particularly in a narrow space.
More specifically, the panel mounting bracket 1 is fixed to the upper surface of the H-shaped steel beam B1 on the upper floor of the building body B, and a plurality of the panel mounting brackets 1 are arranged at intervals in the frontage direction of the building body B.
The second panel mounting bracket 10 is arranged at a position overlapping with the panel mounting bracket 1 in the vertical direction, is fixed to the bottom surface of the beam B1, and is arranged in plurality at intervals in the frontage direction.

As shown in FIGS. 2A and 2B, the panel mounting bracket 1 is a member having a substantially L-shaped cross section, abuts on the upper flange portion B2 of the beam B1, and protrudes outside the building body B from the beam B1. The bottom wall portion 1a, the outer wall portion 1b extending continuously upward from the outer end portion of the bottom wall portion 1a, and the outer wall portion 1b extending continuously upward from both ends in the width direction of the bottom wall portion 1a, respectively. It is mainly composed of a pair of reinforcing wall portions 1c connecting the bottom wall portion 1a and the outer wall portion 1b.
A mounting hole 2 for fixing to the beam B1 is formed in the bottom wall portion 1a of the panel mounting bracket 1. Further, by using the mounting hole 2, the temporary handrail 20 can be detachably attached.
Further, the outer wall portion 1b is formed with a panel mounting hole 3 for detachably mounting the building panel 30.

The mounting holes 2 are through holes that penetrate in the vertical direction with respect to the bottom wall portion 1a, and are formed in 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 in a state where the mounting hole 2 and the through hole B2a formed on the upper surface of the beam B1 communicate with each other in the vertical direction.
Further, the fixing bolt 4 is tightened with a nut while the mounting hole 2 and the mounting hole 26 formed in the temporary handrail 20 (metal fitting base member 25) shown in FIG. 6 are in communication with each other in the vertical direction. The slide 20 is attached to the panel mounting bracket 1.
More specifically, as shown in FIG. 6, the fixing bolts are in a state where 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 in communication with each other in the vertical direction. It is concluded by 4.

As shown in FIGS. 2A and 2B, the panel mounting holes 3 are notch holes formed in the upper end portion of the outer wall portion 1b, and are formed in pairs at intervals in the width direction of the panel mounting bracket 1. ..
The panel mounting hole 3 is a hole for fitting the mounting shaft 33 at the lower end of the building panel 30 shown in FIG. 10C from above.

The panel mounting hole 3 is formed continuously from the first hole portion 3a, which is a guide hole for guiding the mounting shaft 33, and the first hole portion 3a, and the mounting shaft 33 is fitted in the panel mounting hole 3. It is composed of a second hole portion 3b, which is a fitting hole for making the hole.
The first hole portion 3a is a guide hole having a substantially inverted trapezoidal shape, and is formed by notching while being inclined so as to become narrower downward from the upper end of the outer wall portion 1b.
The second hole portion 3b is a fitting hole having a substantially semicircular shape, has an edge for detachably fitting the mounting shaft 33, and has a predetermined width continuously from the first hole portion 3a. However, a notch is formed downward.
With the above configuration, the building panel 30 can be easily attached to and detached from the panel mounting bracket 1 from the vertical direction.

As shown in FIG. 3, the second panel mounting bracket 10 is a member having a stepped shape, and is an upper wall that abuts on the lower flange portion B3 of the beam B1 and projects from the beam B1 to the outside of the building body B. The portion 10a, the first outer wall portion 10b extending downward from the outer end portion of the upper wall portion 10a, and the bottom wall portion 10c protruding outward from the lower end portion of the first outer wall portion 10b to the outside of the building body B. , The second outer wall portion 10d extending downward from the outer end portion of the bottom wall portion 10c and the second outer wall portion 10a extending downward from both ends in the width direction of the upper wall portion 10a, respectively, from the upper wall portion 10a to the second outer wall portion. It is provided with a pair of reinforcing wall portions 10e connecting the portions up to 10d.
Further, the second panel mounting bracket 10 faces the building body B side from both ends of the third outer wall portion 10f protruding upward from the upper surface of the bottom wall portion 10c and the third outer wall portion 10f in the width direction. A pair of second reinforcing wall portions 10g connecting the third outer wall portion 10f, the first outer wall portion 10b, and the bottom wall portion 10c.
A mounting hole 11 for fixing to the beam B1 is formed in the upper wall portion 10a of the second panel mounting bracket 10.
Further, a panel fixing hole 12 for fixing the building panel 30 is formed in the second outer wall portion 10d, and the building panel 30 is detachably attached to the third outer wall portion 10f. A panel mounting hole 13 is formed.

The mounting holes 11 are through holes similar to the mounting holes 2, and are formed in plurality at intervals in the width direction of the second panel mounting bracket 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 communicating with each other in the vertical direction. ing.

As shown in FIG. 3, the panel fixing hole 12 is a through hole penetrating the second outer wall portion 10d in the protruding width direction of the building body B, and is spaced apart in the width direction of the second panel mounting bracket 10. Is formed in multiples.
The building panel 30 is fixed to the building body B by bolting the fixing nut 35 at the upper end of the building panel 30 shown in FIG. 10D to the panel fixing hole 12 in a state of communicating with the panel fixing hole 12.

The panel mounting holes 13 are notch holes similar to the panel mounting holes 3 described above, and are formed in pairs at intervals in the width direction of the second panel mounting bracket 10.
The panel mounting hole 13 is a hole for fitting the second mounting shaft 34 at the lower end of the building panel 30 shown in FIG. 10C from above.
The panel mounting hole 13 is mainly composed of a first hole portion 13a serving as a guide hole and a second hole portion 13b serving as a fitting hole for fitting the second mounting shaft 34 in the panel mounting hole 13. It is configured.
With the above configuration, the building panel 30 can be attached to the plurality of panel mounting brackets 1 and 10 so as to support a plurality of building panels 30 in the vertical direction.

As shown in FIGS. 4 to 8, the temporary handrail 20 is a temporary structure for preventing falls used during construction of a building, and is attached to the building body B before the building panel 30 is attached to the building. It is removed after the panel 30 is attached.
The temporary handrail 20 includes a support column 20A attached to the upper part of the beam B1, a second support column 20B attached to the upper part of the beam B1 via the panel mounting bracket 1, a support column 20A, and a second support column 20B, respectively. It is mainly composed of a connecting body 20C connecting the upper portion and the central portion.
The connecting body 20C is formed as a plate-shaped elongated body, and extends along the elongated direction of the beam B1. Further, as shown in FIG. 1, a plurality of connecting bodies 20C are arranged so as to be arranged along the long direction of the beam B1. More specifically, the end portion of one connecting body 20C and the end portion of the other connecting body 20C are arranged so as to overlap each other, and the overlapping end portion is supported by the strut body (second strut body 20B).

As shown in FIGS. 5 and 6, the strut body 20A has a strut member 21 extending in the vertical direction and a beam base member 22 provided at the lower end of the strut member 21 and in contact with the upper surface of the beam B1. And, they are provided at intervals in the length direction of the beam base member 22, project downward from the beam base member 22, and are inserted into through holes B2a (B3a) provided at intervals on the beam B1. It is mainly composed of a first protruding member 23 and a second protruding member 24.

The strut member 21 is a long hollow body having a rectangular cross section. An engaging shaft 21a for detachably engaging the engaging hole 20Ca provided at the end of the connecting body 20C is provided in the upper portion and the central portion of the support column member 21. The engaging shaft 21a projects from the outer surface of the support column member 21 toward the inside of the building body B.

The beam base member 22 is a member for ensuring the mounting strength (bending strength) of the temporary handrail 20, and is in contact with the upper surface of the beam B1.
More specifically, the beam base member 22 has a pair of first base portions 22a projecting from the lower end portion of the strut member 21 on both sides in the width direction, and the beam base member 22 projecting from the lower end portion of the strut member 21 to the inside of the building body B. It is mainly composed of a second base portion 22b and a pair of reinforcing base portions 22c protruding from the second base portion 22b on both sides in the width direction and connecting the first base portion 22a and the second base portion 22b.

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-shaped member and are in contact with the upper surface of the beam B1.
The first and second projecting members 23 and 24 are welded to the positions of the pair of first base portions 22a facing the through holes B2a (B3a) of the beam B1.
The second base portion 22b is arranged between the outer end portions of the pair of first base portions 22a, and is arranged between the first and second projecting members 23 and 24.
The pair of reinforcing base portions 22c are inclined and expanded in the vertical direction from the support column member 21 side toward the beam B1 side.

The first projecting member 23 and the second projecting member 24 are rod-shaped members that are elongated in the vertical direction, and the first projecting member 23 projects so as to be longer than the second projecting member 24.
The tip portions 23a and 24a of the first projecting member 23 and the second projecting member 24, respectively, have a tapered shape and are formed so as to become thinner toward the tip.
Further, the portion of the first protruding member 23 (tip portion 23a) that becomes the start position of the tapered shape is arranged at a position farther from the beam base member 22 than the tip of the second protruding member 24.

In the above configuration, the first projecting member 23 and the second projecting member 24 are respectively inserted into through holes B2a formed at intervals in the upper flange portion B2 of the beam B1 and at intervals in the lower flange portion B3. It is inserted into the second through hole B3a formed in the above.
Therefore, it is possible to realize a temporary handrail 20 that can be easily attached and detached while having excellent stability.

As shown in FIGS. 7 and 8, the second support column 20B is provided at the support column member 21 extending in the vertical direction and the lower end portion of the support column member 21, and abuts on the upper surface of the panel mounting bracket 1. It is mainly composed of a metal fitting base member 25 to be attached to the metal fitting base member 25.

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 protruding width direction of the building body B.
More specifically, the metal fitting base member 25 is a pair of first base portions 25a projecting from the lower end portion of the strut member 21 on both sides in the width direction, and projecting from the lower end portion of the strut member 21 to the outside of the building body B. It is mainly composed of a second base portion 25b and a pair of reinforcing base portions 25c protruding from the second base portion 25b on both sides in the width direction and connecting the first base portion 25a and the second base portion 25b.

The pair of first base portions 25a are in vertical contact with the bottom wall portion 1a of the panel mounting bracket 1 via the fixing nut 5.
Of the pair of first base portions 25a, mounting holes 26 for mounting on the panel mounting bracket 1 are formed at positions facing the mounting holes 2 of the panel mounting bracket 1.

The second base portion 25b projects toward the outer wall portion 1b of the panel mounting bracket 1 and abuts on the outer wall portion 1b in the protruding width direction of the building body B. Further, it is in contact with the bottom wall portion 1a in the vertical direction.
More specifically, the second base portion 25b is in contact with the central portion of the outer wall portion 1b between the pair of panel mounting holes 3.
The pair of reinforcing base portions 25c are composed of substantially triangular plate-shaped members, and are inclined and expanded in the vertical direction from the support column member 21 side toward the panel mounting bracket 1 side.

As shown in FIGS. 1, 10C, and D, the building panel 30 is a rectangular plate-shaped member constituting the building, specifically, an outer wall panel, and the rectangular plate-shaped panel frame 31. , A finished surface material 32 fixed to the surface of the panel frame 31, and mainly composed of.
The building panel 30 is not particularly limited to the "outer wall panel", and may be a "waist wall panel", a "roof panel", or an "eaves panel", and various building panels shall be adopted. Can be done.

A mounting shaft 33 and a second mounting shaft 34 for detachably attaching to the panel mounting brackets 1 and 10 (brackets B4a and B4b provided on the pillar B4) project from the lower end portion on the back surface of the panel frame 31. It is provided in.
Further, a fixing nut 35 for fixing to the second panel mounting bracket 10 (second bracket B4b) is provided so as to project from the upper end portion on the back surface of the panel frame 31.
The mounting shafts 33, 34 and the fixing nuts 35 are arranged in pairs at both ends of the building panel 30 in the width direction.

As shown in FIGS. 10C and 10D, the mounting shaft 33 is a hook type shaft member and is fitted to the edge of the panel mounting hole 3.
The second mounting shaft 34 is also fitted to the edge of the panel mounting hole 13 in the same manner.

When mounting the mounting shaft 33 to the panel mounting hole 3 of the panel mounting bracket 1 from above, as shown in FIG. 10C, while the first extending portion 33a is formed to have a size that allows it to be inserted into the panel mounting hole 3. The second extending portion 33b is formed in a size that cannot 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 is fitted to the edge of the panel mounting hole 3.
The second mounting shaft 34 is also fitted to 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 of communicating with the panel fixing hole 12 of the second panel mounting bracket 10.

In the above configuration, when fixing the building panel 30 to the panel mounting brackets 1 and 10, first, as shown in FIGS. 10C and 10D, the mounting shafts 33 and 34 at the lower end of the building panel 30 are panel-mounted. Fit into holes 3 and 13. After that, the building panel 30 is pulled toward the building body B side, and the fixing nut 35 at the upper end of the building panel 30 is fixed in a state of communicating with the panel fixing hole 12 of the second panel mounting bracket 10 provided separately. It is fixed by the bolt 36.
With the above configuration, the building panel 30 can be easily attached to the panel mounting brackets 1 and 10 from the vertical direction.

In the above configuration, as shown in FIGS. 2A and 2B, the panel mounting hole 3 of the panel mounting bracket 1 is arranged outside the building body B with respect to the mounting hole 2, and is located above the mounting hole 2. It is formed.
Therefore, it is possible to prevent the portion to which the panel mounting bracket 1 and the temporary handrail 20 are connected and the portion to which the panel mounting bracket 1 and the building panel 30 are connected from interfering with each other.

<Building construction method using temporary structure>
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 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. Will be explained.

In the above building construction method, as shown in FIG. 9, first, a process (step S1) of attaching a plurality of panel mounting brackets 1 and 10 to the beam B1 of the building body B at intervals in the frontage direction of the building body B begins. ..
Specifically, as shown in FIG. 10A, the panel mounting bracket 1 is fixed to the upper surface of the beam B1 with the fixing bolt 4 (fixing nut 5), and the second panel mounting bracket 10 is fixed to the bottom surface of the beam B1. Fix with bolt 14.
At this time, the panel mounting bracket 1 and the second panel mounting bracket 10 are arranged at overlapping positions in the vertical direction.

After that, the temporary handrail 20 is attached to each of the beam B1 and the panel mounting bracket 1 of the building body B (step S2).
Specifically, as shown in FIGS. 1 and 10B, the temporary handrail 20 is provided for the predetermined through hole B2a formed in the beam B1 and the predetermined panel mounting bracket 1 provided on the beam B1. Install to support.
More specifically, the first and second projecting members 23 and 24 of the support column 20A are inserted through the through holes B2a, respectively. At this time, the tip portions 23a and 24a of the first and second projecting members 23 and 24 are also inserted into the second through holes B3a at the lower part of the beam B1.
More specifically, the longer first projecting member 23 is first inserted into the through hole B2a located closer to the pillar B4 than the second projecting member 24. After that, the second protruding member 24 is inserted.
Then, the metal fitting base member 25 of the second support column 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 bracket 1 and the pair of mounting holes 26 formed in the bracket base member 25 communicating with each other, a part of the mounting holes 2 and 26 protrudes upward. By tightening the fixing bolt 4 with a nut, the temporary handrail 20 is attached to the panel mounting bracket 1.

After that, as shown in FIG. 10C, the building panel 30 is attached to the panel mounting holes 3 and 13 of the panel mounting brackets 1 and 10 (step S3).
When mounting the building panel 30, as shown in FIG. 10C, first, the mounting shafts 33 and 34 at the lower end of the building panel 30 are fitted into the panel mounting holes 3 and 13. After that, the building panel 30 is pulled toward the building body B side, and as shown in FIG. 10D, the fixing nut 35 at the upper end of the building panel 30 is inserted into the panel fixing hole 12 of the second panel mounting bracket 10 separately provided. It is fixed by the fixing bolt 36 in a state where it communicates with.
When attaching the building panel 30, the temporary handrail 20 extending in the frontage direction with respect to the building body B can be effectively used as a positioning member.

After that, as shown in FIG. 10E, the temporary handrail 20 bolted to the panel mounting bracket 1 is removed (step S4), and this work process is completed.

With the above building construction method, it is possible to realize a building construction method with improved workability.
More specifically, among the long beams B1, at the beam end portion close to the pillar B4, a temporary handrail that can be easily attached and detached and has excellent stability can be assembled.

<Second Embodiment>
Next, the second embodiment of the present invention will be described with reference to FIGS. 11 and 12.
In the second embodiment, the "temporary handrail" and the "temporary plate" correspond to the temporary structure.
Since the temporary handrail of the second embodiment has the same configuration as the temporary handrail 20, the description thereof will be omitted.

The temporary plate 120 of the second embodiment is a temporary structure for fall prevention used during the construction of the building, and is attached before the building panel 30 is attached to the building body B, and the building panel 30 is attached. It will be removed later.
The temporary plate 120 is attached to the lower portion of the temporary handrail 20 (support member 21), is arranged inside the building body B with respect to the temporary handrail 20, and is supported on the floor panel B5 of the building body B. There is. It may be supported on the beam B1.

Specifically, the temporary plate 120 is attached to the temporary handrail 20 (post member 21), and has a pair of strut members 121 extending inside the building body B and an extending end portion of the pair of strut members 121. It is mainly composed of a connecting member 122 to be connected.
The strut member 121 is formed as a long body having a rectangular cross section, and the connecting member 122 is formed as a plate-shaped long body (skirting board).

A mounting member 123 for detachably attaching to the strut member 21 is provided at the base end portion of the strut member 121.
Further, a gripping member 124 is provided at the extending end portion of the support column member 121 in order to detachably grip the end portion of the connecting member 122 in the long direction.

As shown in FIG. 12, the mounting member 123 is a member capable of holding the strut member 21 in a state of being inserted into the inside, and protrudes from the base end portion of the strut member 121 toward the strut member 21. It is mainly composed of a pair of side wall portions 123a and a connecting wall portion 123b connecting the protruding end portions of the pair of side wall portions 123a.
A pressing bolt 123c for pressing the support column member 21 inserted inside the mounting member 123 from the side is attached to the connecting wall portion 123b.
By pressing the pressing bolt 123c against the side surface of the support column member 21, the mounting member 123 can hold the support column member 21.
Therefore, the temporary plate 120 (post member 121) can be attached to the temporary handrail 20 (post member 21) at an arbitrary height position.

The gripping member 124 is a member that can be expanded and contracted with respect to the support column member 121 and can grip the connecting member 122.
The gripping member 124 is inserted into the inside of the support column member 121, and has a stretchable portion 124a extending from the extension end portion of the support column member 121 so as to be expandable and contractible, and a first extending downward from the extension end portion of the expansion / contraction portion 124a. It is mainly composed of a grip portion 124b and a second grip portion 124c protruding downward from the extended application portion of the support column member 121.
A pressing bolt 124d for pressing the telescopic portion 124a inserted inside the strut member 121 from the side is attached to the extending end portion of the strut member 121.
By pressing the pressing bolt 124d against the side surface of the expansion / contraction portion 124a, the expansion / contraction portion 124a can be held with respect to the support column member 121 with an arbitrary extension length.
Therefore, the gripping member 124 can grip the connecting member 122 regardless of the thickness of the connecting member 122.

With the above configuration, the temporary plate 120 can be used as a fall prevention measure for construction parts and the like before and when the building panel 30 is attached.
Further, the temporary plate 120 is attached to the lower portion of the temporary handrail 20 and is supported by the floor panel B5 in a state of being arranged inside the building main body B with respect to the temporary handrail 20. Therefore, the temporary handrail 20 is supported more stably in the protruding width direction of the building body B (the bending strength of the temporary handrail 20 can be increased).

In the building construction method shown in FIG. 9, it is preferable that the step of attaching the temporary plate 120 to the temporary handrail 20 is executed 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 may be attached in step S2.

<Other embodiments>
In the above embodiment, as shown in FIG. 1, the temporary handrail 20 is described as corresponding to the “temporary structure”, but it can be changed without particular limitation.
For example, it may be a temporary scaffold instead of a temporary handrail. Alternatively, it may be a temporary ladder, a temporary wall, or the like.

In the above embodiment, as shown in FIG. 1, the temporary handrail 20 (post body 20A) is attached to the beam B1 of the building body B, but the building body B is not particularly limited and is predetermined. It may be attached to a construction member.
Further, the panel mounting brackets 1 and 10 may be similarly attached to a predetermined construction member of the building body B.

In the above embodiment, as shown in FIGS. 1 and 4, the temporary handrail 20 includes a support column 20A and a second support column 20B, but is not particularly limited, and instead, a pair of support columns is used. It may be equipped with a body 20A.
As shown in FIG. 1, a "handrail 20" provided with a pillar body 20A is installed at a position close to the pillar B4 in the long beam B1, and a pair of second rails is installed at other positions. It is preferable to install a "handrail (not shown) provided with the support body 20B.
With the above configuration, the beam B1 can be easily attached and detached at a position close to the pillar B4 by using the "temporary handrail 20". Further, at other positions, more stability can be ensured by using the above-mentioned "handrail (not shown)".

In the above embodiment, as shown in FIGS. 4 to 6, the first projecting member 23 and the second projecting member 24 are provided at intervals in the length direction of the beam base member 22, but are particularly limited. Instead, the beam base member 22 may be provided at intervals in the width direction.
That is, the first and second projecting members 23 and 24 may be provided so as to line up in the protruding width direction of the building body B.

In the above embodiment, as shown in FIGS. 1 and 10D, the panel mounting brackets 1 and 10 are the joining brackets used when the building panel 30 (outer wall panel) is attached to the building body B, but the outer wall panel. It can be changed without any particular limitation.
For example, the panel mounting bracket 1 may be a joining bracket used for mounting various building panels such as a "waist wall panel", a "roof panel", and an "eaves panel" to the building body B.

In the above embodiment, as shown in FIGS. 7 and 8, the fixing bolt 4 is nut-tightened with the mounting hole 2 of the panel mounting bracket 1 and the mounting hole 26 of the temporary handrail 20 communicating with each other. The temporary handrail 20 is attached to the panel mounting bracket 1, but it can be changed without particular limitation.
That is, the engagement relationship between the "mounting hole" and the "fixing bolt" and the "fixing nut" may not be particularly limited. That is, the structure may be such that the attached portion 26 of the temporary handrail 20 is detachably attached to the attachment portion 2 provided on the panel mounting bracket 1.

In the above embodiment, the temporary structure, the assembly structure of 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 the understanding of the present invention, and does not limit the present invention. The present invention can be modified and improved without departing from the spirit thereof, and it goes without saying that the present invention includes an equivalent thereof.

B Building body B1 Beam (construction member)
B2 Upper flange part B2a Through hole B3 Lower flange part B3a Second through hole B4 Pillar B4a Metal fitting B4b Second metal fitting B5 Floor panel 1 Panel mounting metal fitting 1a Bottom wall part 1b Outer side wall part 1c Reinforcing wall part 2 Mounting hole (mounting part)
3 Panel mounting hole (panel mounting part)
3a 1st hole 3b 2nd hole 4 Fixing bolt (fixing member)
5, 6 Fixing nut (fixing member)
10 2nd panel mounting bracket 10a Upper wall 10b 1st outer wall 10c Bottom wall 10d 2nd outer wall 10e Reinforcing wall 10f 3rd outer wall 10g 2nd reinforcing wall 11 Mounting hole 12 Panel fixing hole 13 Panel mounting hole 13a 1st hole 13b 2nd hole 14 Fixing bolt 20 Temporary handrail (temporary structure)
20A Strut body 20B Second strut body 20C Connecting body 20Ca Engagement hole 21 Strut member 21a Engagement shaft 22 Beam base member (base member)
22a 1st base part 22b 2nd base part 22c Reinforcing base part 23 1st protruding member 23a, 24a Tip part 24 2nd protruding member 25 Bracket base member 25a 1st base part 25b 2nd base part 25c Reinforcing base part 26 Mounting hole (Attached part)
30 Building panel 31 Panel frame 32 Finished surface material 33 Mounting shaft 33a First extension 33b Second extension 34 Second mounting shaft 35 Fixing nut 36 Fixing bolt 120 Temporary plate (second temporary structure)
121 Strut member 122 Connecting member 123 Mounting member 123a Side wall part 123b Connecting wall part 123c Pressing bolt 124 Gripping member 124a Telescopic part 124b First gripping part 124c Second gripping part 124d Pressing bolt

Claims (7)

It is a temporary structure for fall prevention that is used during the construction of the building and is attached to the main body of the building.
A support member that extends vertically in a long direction, and
A base member provided at the lower end of the support column member and abutting on the upper surface of the construction member of the building body,
A first which is provided at intervals in the length direction or width direction of the base member, projects downward from the base member, and is inserted into through holes provided at intervals on the upper surface of the construction member. It is provided with one protruding member and a second protruding member.
A temporary structure characterized in that the first projecting member projects so as to be longer than the second projecting member. The protruding tip portions of the first protruding member and the second protruding member each have a tapered shape, and are formed so as to become thinner toward the tip.
The temporary structure according to claim 1, wherein the portion of the first protruding member that becomes the start position of the tapered shape is arranged at a position farther from the base member than the tip of the second protruding member. .. The base member abuts on the upper surface of the beam of the building body and
The first protruding member and the second protruding member
It is inserted into the through holes formed at intervals on the upper part of the beam, and is inserted into the through holes, respectively.
The temporary structure according to claim 1 or 2, wherein the beam is formed at a space below the beam and is inserted into a second through hole arranged at a position corresponding to the through hole. The assembly structure of the temporary structure according to any one of claims 1 to 3.
The temporary structure is
The stanchions attached to the top of the beam and
A second strut body attached via a panel mounting bracket used when mounting a building panel on the upper part of the beam, and
It is provided with a connecting body for connecting the upper portions of the support body and the second support body, respectively.
The strut body has the strut member, a beam base member as the base member, the first projecting member, and the second projecting member.
The second strut body is a temporary structure having a strut member and a metal fitting base member provided at a lower end portion of the strut member and attached to an upper surface of the panel mounting metal fitting. Assembly structure. The strut body and the second strut body are arranged at intervals in the frontage direction of the building body.
The pillar body is attached to the beam end portion of the beam extending long along the frontage direction, which is close to the pillar of the building body.
The assembled structure of the temporary 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. The metal fitting base member of the second support column is
In the panel mounting bracket, the building panel is mounted on the mounting portion provided inside the building body rather than the panel mounting portion on which the building panel is mounted.
The temporary structure according to claim 4 or 5, wherein the temporary structure is located inside the building body with respect to the mounting position of the building panel when the temporary structure is attached to the building body. Assembly structure. A building construction method using the temporary structure according to any one of claims 1 to 3.
The process of attaching the temporary structure to the construction member and
A process of attaching a building panel to a portion of the construction member located outside the building body rather than the temporary structure.
Including the step of removing the temporary structure from the construction member.
In the step of attaching the temporary structure, the building construction method is characterized in that the first projecting member is inserted and then the second projecting member is inserted into each of the through holes provided in the construction member.

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