JP2022060869A - Wall material unit and wall construction method - Google Patents

Abstract

To safely and easily attach a plate material to a skeleton of a building.SOLUTION: A wall material unit 100 comprises: a plurality of plates 10 that serve as walls of a building 1; a lower member 20 that supports the load of the plurality of plates 10; an upper member 30 that has a through hole 33a and is positioned above the lower member 20; a reinforcement 40 that is fixed to the upper member 30 and the lower member 20 and reinforces ends of the plurality of plates 10; and a temporary support bar 50 that is attached to the lower member 20 in a state of being inserted into the through hole 33a and is suspended from above the upper through hole 33a of the upper member 30 to support the load of the lower member 20.SELECTED DRAWING: Figure 2

Description

Application for application of Article 30, Paragraph 2 of the Patent Law Meeting name: Kajima Corporation Chubu Branch Cooperating company improvement case presentation Date: July 30, 2nd year of Reiwa

The present invention relates to a wall material unit and a wall construction method.

It has been proposed to construct the wall of a building using a plate material such as an ALC (Autoclaved Lightweight Concrete) plate. Patent Document 1 discloses a method of attaching an ALC plate to a pre-constructed building frame.

In the mounting method disclosed in Patent Document 1, first, a plurality of ALC plates are arranged in a plane by a groundwork. Next, the wall material unit is assembled by fixing the through angles for mounting the skeleton to a plurality of ALC plates. Next, the wall material unit is moved into a unit yard provided on the ground, and the joint portion between the ALC plates in the wall material unit is sealed and the ALC plate is painted. After that, a wire is engaged with one end of the through angle, and the wall material unit is lifted to the outer wall mounting position in the building frame (base steel frame or stud). By joining the through angle to the skeleton by welding, the installation of the ALC plate is completed.

Japanese Unexamined Patent Publication No. 2000-145154

In the mounting method disclosed in Patent Document 1, a wire is engaged with one end of a through angle to lift a wall material unit. Therefore, at the time of lifting, the wall material unit is held with one end of the through angle facing up. In this state, the ALC plate may be damaged or dropped due to tensile stress due to its own weight, and the wall material unit must be lifted carefully. As a result, a great deal of labor is required to attach the ALC plate to the frame in the building.

An object of the present invention is to safely and easily attach a plate material to a building frame.

The present invention is a wall material unit, which has a plurality of plate materials to be a wall of a building, a lower member for supporting the load of the plurality of plate materials, and at least two through holes, and is above the lower member. A reinforcing material that is fixed to the upper member and the lower member and reinforces the ends of a plurality of plate members, and is detachably attached to the lower member while being inserted into the through hole. It comprises at least two temporary support rods suspended from above the through hole of the upper member to support the load of the lower member.

Further, the present invention is a wall construction method for constructing a building wall by attaching a plurality of plate materials to a building frame, and has a lower member for supporting the plurality of plate materials and an upper side having at least two through holes. A reinforcing material that reinforces the ends of a plurality of plate materials is fixed to the member, and at least two temporary support rods that support the load of the lower member are detachably attached to the lower member with the through holes inserted. , The temporary support rod is hung from above the through hole of the upper member so that the upper member is arranged above the lower member, the lower member is lifted together with the plurality of plates, and the plurality of plates are used as the skeleton. Install.

According to the present invention, the plate material can be safely and easily attached to the frame of the building.

It is an enlarged perspective view which shows a part of a building constructed by using the wall material unit which concerns on 1st Embodiment of this invention. (A) is an elevation view of the wall material unit according to the first embodiment of the present invention as viewed from the back surface side (attachment side to the frame) of the plate material, and (b) is a plan view of the wall material unit (b). (Down view), (c) is a vertical cross-sectional view taken along the IIC-IIC line shown in FIG. 2 (a), and (d) is a vertical cross-sectional view taken along the IID-IID line shown in FIG. 2 (a). It is a figure. It is a vertical sectional view which shows the state which the plate material of the wall material unit which concerns on 1st Embodiment of this invention is attached to the frame of a building. (A) is an elevation view of the traverser used for lifting the wall material unit according to the first embodiment of the present invention as viewed from the back surface side (attachment side to the skeleton) of the plate material, and (b) is an elevation view. It is a vertical sectional view along the IVB-IVB line shown in FIG. 4A. (A) is an elevation view of the wall material unit according to the second embodiment of the present invention as viewed from the back surface side (attachment side to the frame) of the plate material, and (b) is a plan view of the wall material unit (b). (Down view), (c) is a plan view along the VC-VC line shown in FIG. 5 (a), and (d) is a vertical cross section along the VD-VD line shown in FIG. 5 (a). It is a figure.

Hereinafter, the wall material unit and the wall construction method according to the embodiment of the present invention will be described with reference to the drawings.

<First Embodiment>
First, the wall material unit 100 and the wall construction method according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 4. Here, a case where the outer wall of the building is constructed by using the wall material unit 100 will be described, but the present invention describes the inner wall defining the vertical holes such as the elevator shaft space, the pipe shaft space, the electric shaft space, and the staircase shaft space. It can also be applied to construction.

FIG. 1 is an enlarged perspective view showing a part of a building 1 constructed by using the present embodiment. The building 1 is, for example, a steel structure (S structure) in which a steel material is used for a skeleton 2 such as columns and beams. In the building 1, the columns may be concrete-filled steel pipe structures (CFT structure) and the beams may be steel structures, the columns and beams may be steel-framed reinforced concrete structures (SRC structures), and the columns and beams may be precast concrete structures (PCa structures). May be.

The outer wall of the building 1 is formed by a plurality of plate members 10 arranged in a plane. In the following, among the surfaces of the plate material 10, the surface forming the outer side of the building 1 is referred to as the front surface of the plate material 10, and the surface facing the skeleton 2 constituting the building 1 is referred to as the back surface.

The plate material 10 is, for example, a lightweight cellular concrete (ALC) plate in which cement, silica stone, quicklime, and aluminum powder are used as main raw materials and foamed. The plate material 10 may be an extruded cement plate (ECP) formed by extrusion molding using cement, a siliceous raw material and a fibrous raw material as main raw materials.

The plate material 10 is preformed so that the front and back surfaces are rectangular. After the skeleton 2 is constructed, the plate material 10 is lifted to a predetermined mounting position (floor) by using a lifting machine such as a crane or a temporary elevator so that the longitudinal direction of the plate material 10 coincides with the vertical direction of the building 1. It is attached to the skeleton 2. There is not only a vertical pasting method in which the plate 10 is attached to the skeleton 2 so that the longitudinal direction of the plate 10 coincides with the vertical direction of the building 1, but also a horizontal pasting method described later. A sealing material (not shown) is filled in the joints between the plates of the adjacent plate materials 10. Further, the surface of the plate material 10 and the sealing material are painted with a waterproof paint.

In the construction of the outer wall in the building 1, when the plate members 10 are lifted one by one and attached to the skeleton 2, work at a high place is required each time. Since aerial work involves the risk of flying objects and workers falling, reduction of aerial work is required.

Further, when the plate material 10 is a member containing cement such as an ALC plate or ECP, the tensile strength of the plate material 10 is smaller than the compressive strength. Therefore, if an excessive tensile stress is generated on the plate material 10 during lifting, the plate material 10 may be damaged or dropped. For this reason, it is required to reduce the tensile stress generated in the plate material 10 during lifting and to safely and easily attach the plate material 10 to the skeleton 2 of the building 1.

In the present embodiment, a plurality of plate materials 10 are fixed to each other in advance to form one wall material unit 100 (see FIG. 2), and the wall material unit 100 is lifted by a lifting machine such as a crane and attached to the skeleton 2. Therefore, a plurality of plate materials 10 are simultaneously attached to the skeleton 2. Therefore, it is possible to reduce the aerial work in the wall construction work and improve the safety.

Further, in the present embodiment, the load of the plate material 10 is supported from below, and the plate material 10 is lifted as a unit. Therefore, the tensile stress generated in the plate material 10 can be reduced, and the plate material 10 can be safely and easily attached to the skeleton 2. The structure that supports the load of the plate material 10 from below will be described in detail with reference to FIG.

FIG. 2A is an elevational view of the wall material unit 100 as viewed from the back surface side (mounting side to the frame 2) of the plate material 10, and FIG. 2B is a plan view (looking down) of the wall material unit 100. Figure). 2 (c) is a vertical cross-sectional view taken along the IID-IIC line shown in FIG. 2 (a), and FIG. 2 (d) is a vertical cross-sectional view taken along the IID-IID line shown in FIG. 2 (a). be.

In the following, the top and bottom are the orientations when the wall material unit 100 is attached to the skeleton 2 (see FIG. 1), and the left and right are the directions when the wall material unit 100 attached to the skeleton 2 is viewed from the back surface side of the plate material 10. The orientation in the state. In FIGS. 2 (c) and 2 (d), the vicinity of the upper end and the vicinity of the lower end of the plate material 10 are enlarged and shown.

As shown in FIGS. 2A to 2D, the wall material unit 100 is arranged above the plurality of plate materials 10, the lower member 20 that supports the load of the plurality of plate materials 10, and the lower member 20. The upper member 30 is provided, a reinforcing member 40 fixed to the lower member 20 and the upper member 30, and two temporary support rods 50 attached to the lower member 20. A plurality of wall material units 100 are assembled in a low place where scaffolding is stable, such as a ground yard in a construction site.

The plurality of plate members 10 are arranged in a plane in the left-right direction so that the longitudinal direction of the plate members 10 coincides with the vertical direction of the building 1. A sealing material (not shown) is filled in the joints between the plates of the adjacent plate materials 10. Further, the surface of the plate material 10 and the sealing material are painted with a waterproof paint. In the example shown in FIG. 2, four plate materials 10 are arranged side by side, but the number of plate materials 10 may be two or three, and may be more than that as long as the purpose as the wall material unit 100 is achieved. There may be many.

The lower member 20 includes a lower through member 21 arranged along the lower ends of the plurality of plate members 10, a lower fastener 22 fixed to the lower through member 21, and a lower suspension piece 23. There is. The lower through material 21 is, for example, an L-shaped angle material made of steel. The lower fastener 22 is, for example, a steel Z-shaped metal fitting (Z clip), and is fixed to the lower through member 21 by welding. The lower suspension piece 23 is, for example, a short material (piece) made of steel with an L-shaped angle, and is fixed to the lower through material 21 by welding. Two lower hanging pieces 23 are provided.

As shown in FIGS. 2A and 2C, the lower fastener 22 is fastened to the plate material 10 by using the lower bolt 24. As shown in FIG. 2D, the lower suspension piece 23 is formed with a lower through hole 23a that penetrates in the vertical direction.

As shown in FIGS. 2A to 2D, the upper member 30 includes an upper through member 31 arranged along the back surface of the plurality of plate members 10 and an upper fastener 32 fixed to the upper through member 31. , Is equipped. The upper through material 31 is, for example, an L-shaped angle material made of steel. The upper fastener 32 is, for example, a steel Z-shaped metal fitting (Z clip), and is fixed to the upper through member 31 by welding.

As shown in FIGS. 2A and 2C, the upper fastener 32 is fastened to the plate material 10 by using the upper bolt 34. As shown in FIG. 2D, the upper through member 31 is formed with two upper through holes 33a penetrating in the vertical direction. The hole diameter of the upper through hole 33a is set to a hole diameter that secures a certain clearance from the shaft diameter of the round steel 51 described later, and is set sufficiently smaller than the maximum diameter of the annular portion 52 also described later.

As shown in FIGS. 2A and 2B, a pair of reinforcing members 40 are provided on the left and right sides. One reinforcing material 40 is arranged along the left end corner portion of the plate material 10 located on the leftmost side, and the other reinforcing material 40 is arranged along the right end corner portion of the plate material 10 located on the rightmost side. The reinforcing member 40 prevents damage to the left and right corners of the plate 10 when the wall unit 100 is lifted and when the wall unit 100 is attached to the frame 2 (see FIG. 1). Further, the reinforcing material 40 is, for example, an L-shaped angle material made of steel, and is firmly fixed to the lower through material 21 and the upper through material 31 by welding to form a substantially quadrangular frame, and the wall material unit 100. Retains the shape of.

Although not shown, a plurality of wall material units 100 may be attached to the skeleton 2 so as to be adjacent to each other, or a plurality of wall material units 100 may be attached to the skeleton 2 at intervals from each other. When the plurality of wall material units 100 are adjacent to each other, the reinforcing materials 40 are adjacent to each other, but when the plurality of wall material units 100 are arranged at intervals from each other, the reinforcing material 40 may be, for example, a building. Adjacent to the opening frame (AW) in the object 1.

The temporary support rod 50 is screwed into the round steel 51 inserted into the upper through hole 33a and the lower through hole 23a, the annular portion 52 fixed to the upper part of the round steel 51, and the lower part of the round steel 51. It is equipped with a nut 53. The annular portion 52 is, for example, a steel eye nut, which is screwed onto the upper portion of the round steel 51 and further fixed to the round steel 51 by welding to prevent disengagement. The nut 53 can be removed from the lower end of the round steel 51.

The annular portion 52 is arranged above the upper through hole 33a. The annular portion 52 is formed so that a hanging tool such as a hook at the lower end of a wire suspended by a lifting machine such as a crane can be hooked. When the wire is wound up by using a lifting machine such as a crane with the suspender provided at the lower end of the wire hung on the annular portion 52, the temporary support rod 50 is suspended from above the upper through hole 33a.

The nut 53 is screwed into the round steel 51 below the lower through hole 23a with the round steel 51 inserted into the upper through hole 33a and the lower through hole 23a. Since the hole diameter of the lower through hole 23a is set to be smaller than the maximum diameter of the nut 53, the nut 53 cannot pass through the lower through hole 23a. Therefore, when the temporary support rod 50 is suspended by using a lifting machine such as a crane, the load of the lower member 20 is supported by the temporary support rod 50 via the nut 53.

In this way, the temporary support rod 50 is attached to the lower suspension piece 23 in a state of being inserted into the upper through hole 33a, and is suspended from above the upper through hole 33a to support the load of the lower member 20. .. Therefore, at the time of lifting, the plurality of plate members 10 are held substantially vertically so that the upper member 30 is located above the lower member 20, and the load of the plurality of plate members 10 is received by the lower member 20. Therefore, the tensile stress generated in the plate material 10 can be reduced, and the plate material 10 can be prevented from being damaged or dropped. As a result, the plurality of plate materials 10 can be safely and easily attached to the skeleton 2 of the building 1.

When the nut 53 is loosened and removed from the lower end of the round steel 51, the round steel 51 is allowed to be pulled out upward from the lower through hole 23a and the upper through hole 33a. Therefore, after the wall material unit 100 is attached to the frame 2 of the building 1, the nut 53 is loosened and removed from the lower end of the round steel 51, and the round steel 51 is pulled out from the lower through hole 23a and the upper through hole 33a. As a result, the temporary support rod 50 can be removed from the wall material unit 100. Therefore, the temporary support rod 50 can be reused (reused) when assembling another wall material unit 100.

FIG. 3 is a vertical cross-sectional view showing a state in which the plate material 10 is attached to the skeleton 2 of the building 1. Note that FIG. 3 shows a state in which the temporary support rod 50 is removed from the wall material unit 100.

As shown in FIG. 3, the base material 3 is fixed to the skeleton 2 of the building 1, and the receivers 4a and 4b are fixed to the base material 3. The receiver 25 is fixed to the lower through member 21, and the receiver 25 is fixed to the receiver 4a. The upper through member 31 is fixed to the receiver 4b. That is, the plate material 10 is attached to the skeleton 2 via the lower member 20, the receiver 4a, and the base material 3, and is attached to the skeleton 2 via the upper member 30, the receiver 4b, and the base material 3. The base material 3 is, for example, a short material (piece) made of channel steel. The receivers 4a, 4b, and 25 are short materials (pieces) made of, for example, channel steel. The receiver 25 is fixed to the lower through member 21 in a stable low place of the scaffold.

FIG. 4A is an elevational view of the traverser (hanging jig) 60 used for lifting the wall material unit 100 from the back surface side (attachment side to the skeleton 2) of the plate material 10 and is shown in FIG. 4 (a). b) is a vertical cross-sectional view taken along the IVB-IVB line shown in FIG. 4 (a). As shown in FIGS. 4A and 4B, the traverser 60 is formed with a plurality of upper holes 61 and a plurality of lower holes 62.

The upper shackle 61a is hung on the upper hole 61, and the lower shackle 62a is hung on the lower hole 62. A wire 61b suspended from a lifting machine (not shown) is hung on the upper shackle 61a. A wire 62b is hung in the lower hole 62, and a hook 62c provided at the lower end of the wire 62b is hung on the annular portion 52 of the temporary support rod 50. The kaishakunin rope 64 may be hung from the lower holes 62 on both outer end sides, and the traverser 60 can be turned or pulled by pulling the kaishakunin rope 64.

The lower shackle 62a can be removed from the lower hole 62, and the distance between the lower shackles 62a can be changed. Therefore, the distance between the annular portions 52 and the distance between the lower shackles 62a can be substantially matched. Therefore, it is possible to select a suitable spacing between the lower holes 62 according to the width of the wall material unit 100 (the number of plate materials 10) and lift the wall material unit 100 so that the wire 62b extends in the vertical direction. , The wall material unit 100 can be stably lifted.

The traverser 60 is, for example, a T-shaped steel material (cut T) and has a spine 63 (blade of the cut T). In this way, by forming the traverser 60 not with a plate-shaped steel material but with a T-shaped steel material having a spine 63, it is possible to prevent the traverser 60 from bending around an axis along the vertical direction, and it is possible to prevent the traverser 60 from bending around an axis along the vertical direction. 100 can be lifted more stably.

Next, the wall construction method according to the present embodiment will be described.

First, the wall material unit 100 is assembled. Specifically, the plate materials 10 are laid down and arranged on a flat ground assembly stand (not shown) provided in the construction site. Next, the lower member 20 is arranged along the lower ends of the plurality of plate materials 10 and attached to the plate material 10 by using the lower bolt 24. Next, the upper member 30 is arranged along the back surface of the plurality of plate materials 10 and attached to the plate material 10 by using the upper bolt 34. Next, the reinforcing material 40 is arranged along the left end corner portion of the plate material 10 located on the leftmost side, and another reinforcing material 40 is arranged along the right end corner portion of the plate material 10 located on the rightmost side, and the reinforcing material 40 is arranged. Is welded and fixed to the lower member 20 and the upper member 30. Next, the round steel 51 of the temporary support rod 50 is inserted into the upper through hole 33a, and subsequently inserted into the lower through hole 23a. Next, the nut 53 is screwed into the lower end of the round steel 51 from the lower side, and the temporary support rod 50 is attached to the lower member 20. As described above, the assembly of the wall material unit 100 is completed.

Next, the wall material unit 100 is lifted. Specifically, as shown in FIG. 4, the hook 62c suspended from the traverser 60 is hooked on the annular portion 52 of the temporary support rod 50, and the traverser 60 is lifted by using a lifting machine such as a crane. As a result, the temporary support rod 50 is suspended from above the upper through hole 33a, the lower member 20 supports the plurality of plate members 10, and the wall material unit 100 is lifted.

Next, the wall material unit 100 is fixed to another vertical erection pedestal (not shown) provided in the construction site so that the longitudinal direction of the plate material 10 substantially coincides with the vertical direction of the vertical erection pedestal. .. This vertical erection pedestal is constructed using, for example, Yamadome main material in order to improve stability. Further, at the foot of the wall material unit 100, a rail in which a crosspiece is attached to a square steel pipe is provided to prevent the lower end of the plate material 10 from being damaged, and the lower through material 21 is placed on the rail (the plate material 10 is not grounded). It is preferable to do so.

Next, a sealing material is filled in the joints between the adjacent plate materials 10 constituting the wall material unit 100 (sealing treatment), and the surface of the plate material 10 and the sealing material are painted with a waterproof paint (painting treatment). Since the sealing treatment and the painting treatment can be performed in a low place (ground yard) where the scaffolding is stable, the variation in quality can be reduced.

The sealing treatment and the painting treatment need to be performed in a state where the plate material 10 is dry. If the plate material 10 is wet (excessively absorbed water) due to being hit by rain or the like, the sealing treatment and the painting treatment may cause poor adhesion of the sealing material and reduce the adhesiveness of the paint. May cause cracks, swelling and peeling.

For this reason, it is preferable to incorporate a simple roof made of temporary materials and a rain-curing sheet in the upper part of the vertical ground frame for performing the sealing treatment and the painting treatment. When rain is expected, the rain curing sheet is spread on the simple roof to cover the wall material unit 100, so that the plate material 10 of the wall material unit 100 fixed to the gantry can be prevented from being hit by rain. In addition, this makes it possible to proceed with the work without being affected by the weather, and it is possible to prevent delays in the work process due to rainfall.

Next, the traverser 60 is lifted to lift the wall material unit 100, and the wall material unit 100 is temporarily fixed to the skeleton 2 of the building 1. Specifically, as shown in FIG. 3, the receiver 25 and the upper through member 31 are fastened (temporarily fixed) to the receivers 4a and 4b attached to the skeleton 2 by using bolts or the like (not shown), respectively.

When the wall material unit 100 is lifted to the mounting position, the hook 62c is hung on the annular portion 52 of the temporary support rod 50 with the traverser 60 facing so that the spine 63 of the traverser 60 projects toward the surface side of the plate material 10. As a result, it is possible to prevent the spine 63 from coming into contact with the skeleton 2 and the attached wall material unit 100 when the wall material unit 100 is brought close to the skeleton 2 of the building 1, and it is possible to prevent the wall material unit 100 from being damaged. can do.

Next, the nut 53 of the temporary support rod 50 is loosened and removed from the lower end of the round steel 51, and the temporary support rod 50 (round steel 51 integrated with the annular portion 52) is lifted to the lower through hole 23a and the upper penetration. Pull out from the hole 33a. Next, the wall material unit 100 is finally fixed to the skeleton 2 of the building 1. Specifically, the receiver 25 and the upper through member 31 are fixed to the receivers 4a and 4b by welding, respectively.

After that, the outer wall of the building 1 is completed by repeating this procedure. That is, the outer wall of the building 1 is assembled by assembling the wall material unit 100 necessary for constructing the wall of the building 1, performing the sealing treatment and the painting treatment, and lifting the wall material unit 100 and attaching it to the skeleton 2. Is completed.

The sealing treatment and painting treatment between the upper and lower wall material units 100, and the sealing treatment and painting treatment between the wall material unit 100 and the window frame (not shown) are performed after the appropriate wall material unit 100 is attached to the skeleton 2. , Temporary scaffolding, aerial work platforms, or temporary or permanent gondola, etc.

According to the above embodiments, the following actions and effects are exhibited.

In the wall material unit 100 and the wall construction method, the temporary support rod 50 is attached to the lower member 20 in a state of being inserted into the upper through hole 33a, and is suspended from above the upper through hole 33a to be hung from the lower member 20. Supports the load of. Therefore, at the time of lifting, the plurality of plate members 10 are held substantially vertically so that the upper member 30 is located above the lower member 20, and the load of the plurality of plate members 10 is received by the lower member 20. Therefore, the tensile stress generated in the plate material 10 can be reduced, and the plate material 10 can be prevented from being damaged or dropped. As a result, the plurality of plate materials 10 can be safely and easily attached to the skeleton 2 of the building 1.

Further, an annular portion 52 on which a hook 62c for suspending the temporary support rod 50 can be hooked is provided at the upper end of the temporary support rod 50. Therefore, the temporary support rod 50 can be easily hung from above the upper through hole 33a.

<Second Embodiment>
Next, the wall material unit 200 and the wall construction method according to the second embodiment of the present invention will be described with reference to FIG. Hereinafter, the differences from the first embodiment will be mainly described, and the same or equivalent configurations as those described in the first embodiment are designated by the same reference numerals as those in the first embodiment in the drawings. The explanation is omitted.

The wall material unit 200 is used in a so-called horizontal pasting method in which the plate material 10 is attached to the frame 2 of the building 1 so that the longitudinal direction of the plate material 10 is substantially horizontal. The wall constructed by using the wall material unit 200 is substantially the same as the one in which the plate material 10 is laid down sideways in FIG. 1, and the illustration thereof is omitted here.

As shown in FIG. 5, the plurality of plate members 10 are arranged in a plane in the vertical direction so that the longitudinal direction of the plate members 10 coincides with the left-right direction of the building 1. In the example shown in FIG. 5, four plate materials 10 are arranged side by side, but the number of plate materials 10 may be two or three, and may be more than that as long as the purpose as the wall material unit 100 is achieved. There may be many.

The lower through member 21 of the lower member 220 is arranged along the lower end corner portion of the plate member 10 located at the lowest position.

The upper through member 31 of the upper member 230 is arranged along the upper end corner portion of the plate member 10 located at the top. The upper member 230 includes an upper suspension piece 233 fixed to the upper through member 31. The upper suspension piece 233 is, for example, a short material (piece) made of an L-shaped angle material made of steel, and is fixed to the upper through material 31 by welding. As shown in FIG. 5D, the upper suspension piece 233 is formed with an upper through hole 33a penetrating in the vertical direction.

As shown in FIGS. 5A and 5B, a pair of reinforcing members 40 are provided on the left and right sides. One reinforcing material 40 is arranged along the left end corner portion of the plurality of plate materials 10, and the other reinforcing member 40 is arranged along the right end corner portion of the plurality of plate materials 10.

A lateral fastener 242 is fixed to the reinforcing material 40. The lateral fastener 242 is fastened to the plate 10 using the lateral bolt 244. The side fastener 242 is, for example, a steel Z-shaped metal fitting (Z clip), and is fixed to the reinforcing material 40 by welding.

The temporary support rod 50 is attached to the lower suspension piece 23 in a state of being inserted into the upper through hole 33a, and is suspended from above the upper through hole 33a to support the load of the lower member 220. Therefore, at the time of lifting, the plurality of plate members 10 are held substantially vertically so that the upper member 230 is located above the lower member 220, and the load of the plurality of plate members 10 is received by the lower member 220. Therefore, the tensile stress generated in the plate material 10 can be reduced, and the plate material 10 can be prevented from being damaged or dropped. As a result, the plurality of plate materials 10 can be safely and easily attached to the skeleton 2 of the building 1.

Next, the wall construction method according to the present embodiment will be described.

First, the wall material unit 200 is assembled. Specifically, the plate materials 10 are arranged on a flat ground assembly stand (not shown) provided in the construction site. Next, the reinforcing material 40 is arranged along the left end corner of the plurality of plate materials 10, and another reinforcing material 40 is arranged along the right end corner of the plurality of plate materials 10, and the plate material 10 is arranged by using the lateral bolt 244. Attach to. Next, the lower member 220 is arranged along the lower end corner of the plate material 10 located at the bottom, and is fixed to the reinforcing material 40 by welding. Next, the upper member 230 is arranged along the upper end corner of the plate material 10 located at the top, and is fixed to the reinforcing material 40 by welding. Next, the round steel 51 of the temporary support rod 50 is inserted into the upper through hole 33a, and subsequently inserted into the lower through hole 23a. Next, the nut 53 is screwed into the lower end of the round steel 51 from the lower side, and the temporary support rod 50 is attached to the lower member 220. As described above, the assembly of the wall material unit 200 is completed.

Next, the wall material unit 200 is lifted so that the longitudinal direction of the plate material 10 substantially coincides with the left-right direction of the building 1 on another vertical ground assembly stand (not shown) provided in the construction site. Fix the wall material unit 200 in the orientation. Next, a sealing material is filled in the joints between the adjacent plate materials 10 (sealing treatment), and the surface of the plate material 10 and the sealing material are painted with a waterproof paint (painting treatment). Next, the wall material unit 200 is lifted, and the wall material unit 200 is attached to the skeleton 2 of the building 1. This procedure is the same as the first embodiment described above.

After that, the outer wall of the building 1 is completed by repeating this procedure. That is, the outer wall of the building 1 is assembled by assembling the wall material unit 100 necessary for constructing the wall of the building 1, performing the sealing treatment and the painting treatment, and lifting the wall material unit 100 and attaching it to the skeleton 2. Is completed.

Also in the above embodiment, the tensile stress generated in the plate material 10 can be reduced, and the plate material 10 can be prevented from being damaged or dropped. As a result, the plurality of plate materials 10 can be safely and easily attached to the skeleton 2 of the building 1. Further, since the annular portion 52 on which the hook 62c for suspending the temporary support rod 50 can be hooked is provided at the upper end of the temporary support rod 50, the temporary support rod 50 can be mounted from above the upper through hole 33a. Can be easily hung.

Although the embodiments of the present invention have been described above, the above-described embodiments show only a part of the application examples of the present invention, and the technical scope of the present invention is limited to the specific configuration of the above-described embodiments. not.

In the above embodiment, the round steel 51 is used, but a wire may be used instead of the round steel 51. In this case, a hook such as a swivel hook may be detachably provided on the ring (ring-shaped portion) at the lower end of the wire, and the hook may be hooked on the lower through hole 23a (in this case, the hook may be hooked on the lower through hole 23a). It is preferable to mount the lower suspension piece 23 in a state of being rotated 90 degrees from the mounting direction in the first and second embodiments) so that the lower hanging piece 23 can be easily hooked on the hook. When a wire is used instead of the round steel 51, the upper through holes 33a of the upper members 30 and 230 have an elongated hole shape, and the ring (ring-shaped portion) at the lower end of the wire is easily passed through the upper through holes 33a. It is preferable to make it possible.

Further, in the above embodiment, the upper members 30 and 230 are provided with two upper through holes 33a, and the lower members 20 and 220 are provided with two lower through holes 23a to provide two temporary support rods 50. If the width dimension of the wall material units 100 and 200 in the left-right direction is large and the two temporary support rods 50 cannot be lifted stably, the number of temporary support rods 50 may be three or more. In this case, the upper members 30 and 230 may be provided with three or more upper through holes 33a, and the lower members 20 and 220 may be provided with three or more lower through holes 23a accordingly.

1 ... Building 2 ... Frame 10 ... Plate 20 ... Lower member 30 ... Upper member 33a ... Upper through hole 40 ... Reinforcing material 50 ... Temporary support rod 52 ... Circular portion 100 ... Wall material unit 200 ... Wall material unit 220 ... Lower member 230 ... Upper member

Claims (3)

It ’s a wall material unit.
Multiple boards that will be the walls of the building,
The lower member that supports the load of the plurality of plate materials, and
An upper member having at least two through holes and arranged above the lower member,
A reinforcing material fixed to the upper member and the lower member to reinforce the ends of the plurality of plate members,
It is provided with at least two temporary support rods that are detachably attached to the lower member while being inserted into the through hole and are suspended from above the through hole to support the load of the lower member. ,
Wall material unit. An annular portion into which a hanger for suspending the temporary support rod can be inserted is provided at the upper end of the temporary support rod.
The wall material unit according to claim 1. It is a wall construction method in which a plurality of board materials are attached to the frame of a building to construct the wall of the building.
A reinforcing material that reinforces the end portions of the plurality of plate materials is fixed to the lower member that supports the plurality of plate materials and the upper member that has at least two through holes.
At least two temporary support rods that support the load of the lower member are detachably attached to the lower member in a state of being inserted into the through hole.
The temporary support rod is suspended from above the through hole so that the upper member is arranged above the lower member, and the lower member is lifted together with the plurality of plate members.
Attaching the plurality of plate materials to the skeleton,
How to build a wall.

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