JP2021123867A - Building construction method and temporary structure used for building construction method - Google Patents

Abstract

To provide a building construction method which achieves improvement in workability, and to provide a temporary structure used for the building construction method.SOLUTION: A building construction method uses a panel mounting tool 1 which is used when mounting a building panel 30 on a building body B. The construction method includes the steps of: mounting the panel mounting tool 1 on a beam B1 of the building body B; mounting a temporary handrail 20 used during construction of a building with respect to a mounting hole 2 provided at the panel mounting tool 1; mounting the building panel 30 with respect to a panel mounting hole 3 provided at the panel mounting tool 1; and removing the temporary handrail 20 from the mounting hole 2. In the step of mounting the temporary handrail 20, the temporary handrail 20 is mounted with respect to the mounting hole 2 provided further inside of the building body B than the panel mounting hole 3 in the panel mounting tool 1.SELECTED DRAWING: Figure 8C

Description

The present invention relates to a building construction method and a temporary structure used in the building construction method, and in particular, a building construction method and a building using a panel mounting tool provided on the building body and used when attaching a building panel to the building body. Regarding the temporary structure used for the construction method.

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

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, for example, as in Patent Documents 1 and 2, it has been proposed to temporarily install a temporary handrail on the building body to perform the construction work of the building.

JP-A-2018-96175 JP-A-2010-71042

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 building construction that uses the temporary structure to improve workability. A method was sought.
In particular, there has been a demand for a building construction method 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.

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

According to the building construction method of the present invention, the problem is a building construction method using a panel mounting tool provided on a building main body and used when attaching a building panel to the building main body. A step of attaching the panel attachment to a predetermined portion, a step of attaching a temporary structure for fall prevention used during construction of the building to the attachment portion provided on the panel attachment, and a step of providing the panel attachment. The step of attaching the building panel to the panel mounting portion and the step of removing the temporary structure from the mounting portion are included, and in the step of mounting the temporary structure, the panel mounting is performed by the panel mounting tool. This is solved by attaching the temporary structure to the attachment portion provided inside the building body rather than the portion.

With the above configuration, it is possible to realize a building construction method with improved workability.
More specifically, since the temporary structure (for example, temporary handrail) is directly attached using the existing parts (panel attachments) provided in advance on the building body, it is not necessary to attach other components separately. The sex can be improved.
In addition, since a panel mounting tool for mounting a building panel is used, a temporary structure having better stability than before can be temporarily installed.
In addition, since the building panel is attached after the temporary structure is attached to the building body and the temporary structure is removed after the building panel is attached, before the building panel (for example, the outer wall panel) is attached, The temporary structure can be effectively used as a fall prevention measure at the time of installation.
Further, a temporary structure can also be used as a positioning member when the building panel is attached to the building body.
In addition, since the temporary structure is attached to the attachment portion provided inside the building body rather than the panel attachment portion in the panel attachment, the temporary structure does not project outward from the building body, and the temporary structure is not provided. The body can be easily attached and detached.

At this time, the step of attaching the second temporary structure for fall prevention used during the construction of the building to the temporary structure is further included, and in the step of attaching the second temporary structure, the temporary structure of the temporary structure is attached. Among them, it is preferable to attach the second temporary structure to the lower portion of the support column member extending in the vertical direction so as to be arranged inside the building body rather than the temporary structure.
With the above configuration, these temporary structures can be effectively utilized as a fall prevention measure before and when the building panel is attached, and a building construction method with further improved workability can be realized.
Further, since the second temporary structure is attached to the lower portion of the support column member of the temporary structure and is arranged inside the building body with respect to the temporary structure, the temporary structure is more inclined in the protruding width direction of the building body. It will be supported stably.

At this time, in the step of attaching the temporary structure, the base member provided at the lower end of the support column member of the temporary structure is attached to the panel attachment, and among the panel attachments, the said It is preferable that the base member is brought into contact with the bottom wall portion attached to the building body and the outer wall portion extending upward from the bottom wall portion and forming the panel mounting portion.
With the above configuration, a temporary structure having more excellent stability can be temporarily installed on the panel mounting tool.

At this time, in the step of attaching the temporary structure, a pair of first base portions protruding from the lower end portion of the support column member on both sides in the width direction are brought into contact with the bottom wall portion of the panel attachment in the vertical direction. In addition, when the second base portion protruding from the lower end portion of the support column member to the outside of the building body is brought into contact with the outer wall portion of the panel attachment in the protruding width direction of the building body. good.
With the above configuration, for example, the strength (bending strength) of the temporary structure can be improved against the load applied when the worker leans against the temporary structure. Therefore, a temporary structure having even higher stability can be temporarily installed.

At this time, in the step of attaching the panel attachment, the bottom wall portion of the panel attachment is attached to the upper surface of the construction member of the building body with a fixing member, and in the step of attaching the temporary structure, the panel is attached. It is preferable to attach the first base portion to the bottom wall portion of the fixture by using the fixing member that partially protrudes upward from the bottom wall portion.
With the above configuration, since the temporary structure (first base portion) is also assembled by using the fixing member when the panel attachment is attached to the building body, the number of component parts can be reduced and the workability can be improved.

At this time, in the step of attaching the panel attachments, a plurality of the panel attachments are attached to a predetermined portion of the building body at intervals in the frontage direction of the building body, and in the step of attaching the temporary structure, the panel attachments are attached. The temporary structure extending in the frontage direction is attached to the plurality of panel attachments, and in the step of attaching the building panel, the plurality of panels are attached in correspondence with the attachment positions of the temporary structures. It is preferable to attach the temporary structure extending in the frontage direction to the tool.
With the above configuration, the temporary structure can be attached by using a plurality of panel attachments, so that the temporary structure having higher stability can be temporarily installed.
Further, the temporary structure can be effectively used as a positioning member when the building panel extending in the frontage direction is attached to the building body.

The problem is also solved by a temporary structure used in a building construction method using the panel attachment.

According to the building construction method of the present invention and the temporary structure used in the building construction method, 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 panel attachment provided in the building body. It is a perspective view which shows the panel attachment. It is a perspective view which shows the panel fixture seen from another angle. It is a perspective view which shows the 2nd panel attachment. It is a perspective view which shows the temporary handrail. It is an exploded perspective view of a panel attachment and a temporary handrail. It is a perspective view which shows the state which attached the temporary handrail to a panel attachment. It is a process drawing which shows the building construction method using a panel attachment. It is a schematic diagram which shows the state which attached the panel fixture to the building body. It is a schematic diagram which shows the state which attached the temporary handrail to a panel attachment. It is a schematic diagram which shows the state of attaching a building panel to a panel attachment. 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 panel attachment. 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 10.
This embodiment is a building construction method using a panel attachment used when attaching a building panel (outer wall panel) to a building body, and is a step of attaching the panel attachment to a construction member (beam) of the building body. , The process of attaching the temporary handrail used during the construction of the building to the attachment part provided on the panel attachment, and the process of attaching the building panel to the panel attachment part provided on the panel attachment. In the process of attaching the temporary handrail, including the process of removing the temporary handrail from the part, in the process of attaching the temporary handrail, it is necessary to attach the temporary handrail to the mounting part provided inside the building body rather than the panel mounting part in the panel mounting tool. It relates to a characteristic invention.
In this embodiment, the "temporary handrail" corresponds to the temporary structure.

As shown in FIG. 1, the panel attachment 1 and the second panel attachment 10 of the present embodiment are fixed to the beam B1 of the building body B, respectively, and are joined when the building panel 30 is attached to the building body B. It is a metal fitting.
Further, the panel mounting tool 1 also functions as a joint fitting for temporarily installing the temporary handrail 20 used during the construction of the building, and is used for temporarily installing the temporary handrail 20 particularly in a narrow space. ..
More specifically, the panel fittings 1 are 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 fittings 1 are arranged at intervals in the frontage direction of the building body B.
The second panel attachment 10 is arranged at a position where it overlaps with the panel attachment 1 in the vertical direction, is fixed to the bottom surface of the beam B1, and a plurality of the second panel attachments 10 are arranged at intervals in the frontage direction.

As shown in FIGS. 2A and 2B, the panel attachment 1 is a member having a substantially L-shaped cross section, abuts on the upper flange portion B2 of the beam B1, and projects 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 tool 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 penetrating the bottom wall portion 1a in the vertical direction, and are formed in plurality at intervals in the width direction of the panel mounting tool 1.
The panel mounting tool 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 fixing 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 in a state where the mounting hole 2 and the mounting hole 24 formed in the temporary handrail 20 (base member 23) shown in FIG. 6 communicate with each other in the vertical direction, whereby the temporary handrail 20 is attached to the panel fixture 1.
More specifically, as shown in FIG. 6, the fixing bolts are in a state where the mounting hole 2 of the panel mounting tool 1, the fixing nut 5, the mounting hole 24 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 tool 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. 8C from above.
The pair of panel mounting holes 3 are arranged at positions sandwiched between the pair of mounting holes 2 in the width direction of the panel mounting tool 1.

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 mainly 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, is notched so as to become narrower from the upper end of the outer wall portion 1b toward the bottom, and is inclined with respect to the vertical direction. Is formed.
The second hole portion 3b is a substantially rectangular fitting hole, 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 attachment 1 from the vertical direction.

As shown in FIG. 3, the second panel attachment 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 outside the building body B from the beam B1. 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 10d extending downward from both ends in the width direction of the upper wall portion 10a, respectively, and extending downward 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 attachment 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, respectively. 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 are provided.
A mounting hole 11 for fixing to the beam B1 is formed in the upper wall portion 10a of the second panel mounting tool 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 tool 10.
The second panel mounting tool 10 is fixed to the beam B1 by tightening the fixing bolt 14 with a nut in a state where the mounting hole 11 and the fixing hole B3a formed on the bottom surface of the beam B1 communicate with each other in the vertical direction. ..

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 tool 10. Is formed in plurality.
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. 8D 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 tool 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. 8C 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 panels 30 can be attached to the plurality of panel fixtures 1 and 10 so as to support a plurality of the building panels 30 in the vertical direction.

As shown in FIGS. 4 to 6, the temporary handrail 20 is a temporary structure for preventing falls used during construction of a building, and is attached before the building panel 30 is attached to the building body B to build a building. The panel 30 is attached and then removed.
The temporary handrail 20 is attached to the building body B via the panel attachment 1, and connects a pair of support column members 21 extending upward so as to project upward, and an upper portion and a central portion of the pair of support column members 21, respectively. It is mainly composed of a plurality of connecting members 22.
The strut member 21 is formed as a long hollow body having a rectangular cross section, and the connecting member 22 is formed as a long plate-shaped body.

At the lower end of the support column member 21, a base member 23 for detachably attaching to the panel attachment 1 is provided.
Further, an engaging shaft 21a for detachably engaging the engaging hole 22a provided at the end portion in the long direction of the connecting member 22 is provided in the upper portion and the central portion of the support 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.

As shown in FIGS. 5 and 6, the base member 23 is a member for ensuring the attachment strength (bending strength) of the temporary handrail 20, and is attached to the panel attachment 1 in the vertical direction. It is held so as to abut against the panel fixture 1 in the protruding width direction of the building body B.
More specifically, the base member 23 has a pair of first base portions 23a projecting from the lower end portion of the strut member 21 on both sides in the width direction, and a second base member 23 projecting from the lower end portion of the strut member 21 to the outside of the building body B. It is mainly composed of two base portions 23b and a pair of reinforcing base portions 23c projecting from the second base portion 23b on both sides in the width direction and connecting the first base portion 23a and the second base portion 23b.

The pair of first base portions 23a extend along the bottom wall portion 1a of the panel attachment 1 and abut on the bottom wall portion 1a in the vertical direction.
More specifically, the first base portion 23a is in contact with the bottom wall portion 1a in the vertical direction via the fixing nut 5.
Of the pair of first base portions 23a, mounting holes 24 for mounting on the panel mounting tool 1 are formed at positions facing the mounting holes 2 of the panel mounting tool 1.

The second base portion 23b projects toward the outer wall portion 1b of the panel attachment 1 and extends in the vertical direction along the outer wall portion 1b.
The second base portion 23b is in contact with 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 23b 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 23c are made of a substantially triangular plate-shaped member, and spread in the vertical direction while being inclined from the support column member 21 side toward the panel attachment 1 side.
More specifically, the pair of reinforcing base portions 23c are reinforcing ribs that connect the outer surface of the first base portion 23a in the width direction and the outer surface of the second base portion 23b in the width direction.

As shown in FIGS. 1, 8C and 8D, 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. It is mainly composed of a finished surface material 32 fixed to the surface of the panel frame 31.
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.

At the lower end of the back surface of the panel frame 31, a mounting shaft 33 and a second mounting shaft 34 for detachably attaching to the panel mounting tool 1 and the second panel mounting tool 10, respectively, are provided so as to project.
Further, a fixing nut 35 for fixing to the second panel mounting tool 10 is provided so as to project from the upper end portion on the back surface of the panel frame 31.
The mounting shafts 33 and 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. 8C and 8D, 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 tool 1 from above, the size of the first extending portion 33a can be inserted into the panel mounting hole 3 (second hole portion 3b) as shown in FIG. 8C. On the other hand, 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. 8D, the fixing nut 35 is bolted in a state of communicating with the panel fixing hole 12 of the second panel mounting tool 10.

In the above configuration, when fixing the building panel 30 to the panel mounting tools 1 and 10, first, as shown in FIGS. 8C and 8D, 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 tool 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 fittings 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 tool 1 is arranged outside the building body B above the mounting hole 2 and at a position above the mounting hole 2. It is formed.
Therefore, it is possible to prevent the portion to which the panel attachment 1 and the temporary handrail 20 are connected and the portion to which the panel attachment 1 and the building panel 30 are connected from interfering with each other.

<Building construction method using each panel mounting tool>
Next, a building construction method using the panel fittings 1 and 10 will be described with reference to FIG.
Specifically, as shown in FIGS. 8A-8E, a building construction method in which a temporary handrail 20 is temporarily installed on each of the panel fixtures 1 and 10 provided on the building body B and the building panel 30 is attached will be described. do.

In the building construction method using the panel fixtures 1 and 10, first, as shown in FIG. 7, the panel fixtures 1 and 10 are first placed at predetermined parts of the building body B at intervals in the frontage direction of the building body B. It starts from the step of attaching a plurality of pieces (step S1).
Specifically, as shown in FIG. 8A, the panel fixture 1 is fixed to the upper surface of the beam B1 which is the construction member of the building body B with the fixing bolt 4 (fixing nut 5), and to the bottom surface of the beam B1. The second panel fixture 10 is fixed with the fixing bolt 14.
At this time, the panel mounting tool 1 and the second panel mounting tool 10 are arranged at overlapping positions in the vertical direction.

After that, the temporary handrail 20 (base member 23) is attached to the pair of attachment holes 2 provided in the panel attachment 1 (step S2).
Specifically, as shown in FIGS. 1 and 8B, a temporary handrail 20 extending in the frontage direction is supported for a plurality of panel attachments 1 arranged at intervals in the frontage direction of the building body B. Attach it so that it will.
More specifically, the pair of mounting holes 2 formed in the panel mounting tool 1 and the pair of mounting holes 24 formed in the base member 23 communicate with each other and partially project upward from the mounting holes 2 and 24. By tightening the fixing bolt 4 with a nut, the temporary handrail 20 is attached to the panel fixture 1.
Further, the bending strength of the temporary handrail 20 is improved by bringing the base member 23 into contact with each of the bottom wall portion 1a and the outer wall portion 1b of the panel attachment 1.

Then, as shown in FIG. 8C, the building panel 30 is attached to the panel mounting holes 3 and 13 of the panel fittings 1 and 10 (step S3).
When mounting the building panel 30, as shown in FIG. 8C, 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. 8D, 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 tool 10 separately provided. It is fixed by the fixing bolt 36 in a state where it communicates with the building.
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. 8E, the temporary handrail 20 bolted to the panel fixture 1 is removed (step S4), and this work step is completed.

With the above building construction method, it is possible to realize a building construction method with improved workability.
In addition, it can be easily attached and detached in a narrow space, and a building construction method using a temporary handrail having excellent stability can be realized.
Further, the temporary handrail 20 can be effectively used before and when the building panel 30 is attached as a fall prevention measure.

<Second Embodiment>
Next, the second embodiment of the present invention will be described with reference to FIGS. 9 and 10.
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 construction of a building, and is attached before attaching the building panel 30 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 (post member 21), is arranged inside the building body B with respect to the temporary handrail 20, and is supported from below by the floor panel B4 of the building body B. ing.

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 hollow 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 strut member 121 in order to detachably grip the end portion of the connecting member 122 in the long direction.

As shown in FIG. 10, the mounting member 123 is a member capable of holding the strut member 21 in a state of being inserted into the inside, and projects 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 into 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 expand and contract with respect to the support column member 121 and can grip the connecting member 22.
The gripping member 124 is inserted into the strut member 121, and has a telescopic portion 124a that extends from the extending end portion of the strut member 121 so as to be expandable and contractible, and a first that protrudes upward from the extending end portion of the telescopic portion 124a. It is mainly composed of a grip portion 124b and a second grip portion 124c projecting upward from the extension 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 telescopic portion 124a, the telescopic 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 measure to prevent the construction parts from falling before and when the building panel 30 is attached.
Further, the temporary plate 120 is supported by the floor panel B4 in a state where the temporary plate 120 is attached to the lower portion of the temporary handrail 20 (post member 21) and is arranged inside the building body B with respect to the temporary handrail 20. , 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. 7, 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 FIGS. 1 and 2A, the panel attachment 1 is attached to the beam B1 of the building body B, but is not particularly limited, and is attached to a predetermined construction member of the building body B. It may be attached.

In the above embodiment, as shown in FIGS. 1 and 8D, the panel fixture 1 is a joint fitting used when the building panel 30 (outer wall panel) is attached to the building body B, but is particularly attached to the outer wall panel. It can be changed without limitation.
For example, the panel mounting tool 1 may be a joining metal fitting used when mounting various building panels such as a "waist wall panel", a "roof panel", and an "eaves panel" on the building body B.

In the above embodiment, as shown in FIGS. 1 and 5, the temporary handrail 20 is held by the panel attachment 1, but can be changed without particular limitation.
For example, the temporary handrail 20 may be held by the panel mounting tool 1 and the second panel mounting tool 10, or may be held only by the second panel mounting tool 10.

In the above embodiment, as shown in FIG. 5, the fixing bolt 4 is tightened with a nut in a state where the mounting hole 2 of the panel mounting tool 1 and the mounting hole 24 of the temporary handrail 20 are in communication with each other, thereby causing the temporary handrail. Although 20 is attached to the panel attachment 1, it can be changed without particular limitation.
That is, the engagement relationship between the "mounting hole" and the "fixing bolt" and the "fixing nut" does not have to be particularly limited. That is, it is sufficient that the attachment portion 24 of the temporary handrail 30 is detachably attached to the attachment portion 2 provided on the panel attachment 1.

In the above embodiment, the building construction method according to the present invention and the temporary structure used in the building construction method have been mainly described.
However, the above-described 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, B3a Fixing hole B3 Lower flange part B4 Floor panel 1 Panel mounting tool 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 tool 10a Upper wall part 10b 1st outer wall part 10c Bottom wall part 10d 2nd outer wall part 10e Reinforcing wall part 10f 3rd outer wall part 10g 2nd reinforcing wall part 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)
21 Strut member 21a Engagement shaft 22 Connecting member 22a Engagement hole 23 Base member 23a First base part 23b Second base part 23c Reinforcement base part 24 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 Support 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 building construction method using a panel attachment that is provided on the building body and is used when attaching a building panel to the building body.
The process of attaching the panel fixture to a predetermined part of the building body,
The process of attaching a temporary structure for fall prevention used during construction of a building to the attachment portion provided on the panel attachment, and
The process of attaching the building panel to the panel mounting portion provided on the panel mounting tool, and
Including the step of removing the temporary structure from the mounting portion.
A building construction method, characterized in that, in the step of attaching the temporary structure, the temporary structure is attached to the attachment portion provided inside the building body with respect to the panel attachment portion in the panel attachment. The step of attaching the second temporary structure for fall prevention used during the construction of the building to the temporary structure is further included.
In the step of attaching the second temporary structure, the temporary structure is arranged inside the building body with respect to the lower portion of the support column member extending in the vertical direction. The building construction method according to claim 1, wherein a second temporary structure is attached. In the process of attaching the temporary structure,
A base member provided at the lower end of a column member of the temporary structure is attached to the panel attachment, and
Among the panel attachments, the base member is brought into contact with the bottom wall portion attached to the building body and the outer wall portion extending upward from the bottom wall portion and forming the panel attachment portion. The building construction method according to claim 1 or 2, characterized in that. In the process of attaching the temporary structure,
A pair of first base portions projecting from the lower end portion of the support column member on both sides in the width direction are brought into contact with the bottom wall portion of the panel attachment in the vertical direction.
The claim is characterized in that a second base portion projecting from the lower end portion of the support column member to the outside of the building body is brought into contact with the outer wall portion of the panel attachment in the protruding width direction of the building body. The building construction method according to 3. In the step of attaching the panel attachment, the bottom wall portion of the panel attachment is attached to the upper surface of the construction member of the building body with a fixing member.
The step of attaching the temporary structure is characterized in that the first base portion is attached to the bottom wall portion of the panel attachment using the fixing member that partially protrudes upward from the bottom wall portion. The building construction method according to claim 4. In the step of attaching the panel attachments, a plurality of the panel attachments are attached to a predetermined part of the building body at intervals in the frontage direction of the building body.
In the step of attaching the temporary structure, the temporary structure extending in the frontage direction is attached to the plurality of panel attachments.
1. The step of attaching a building panel is characterized in that the temporary structure extending in the frontage direction is attached to a plurality of the panel attachments in accordance with the attachment position of the temporary structure. The building construction method according to any one of 5 to 5. A temporary structure used in the building construction method according to any one of claims 1 to 6.

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