JP2020165245A - Building construction method and low exterior wall surface member - Google Patents

Abstract

To provide a building construction method that can efficiently construct a building having an exterior wall formed of multiple exterior wall surface members arranged vertically and efficiently, and also can close a temporary opening disposed on the exterior wall from indoor side.SOLUTION: This building construction method is a construction method of a building having an exterior wall formed of multiple exterior wall surface members 51 arranged vertically on the outdoor side of a skeleton 7 and includes a process to form a temporary opening on the exterior wall so that the exterior wall surface member and a substrate material do not exist at the temporary opening and a process to fit a low exterior wall surface member 501, which is lower than the temporary opening, into the temporary opening from the indoor side of the skeleton 7.SELECTED DRAWING: Figure 6

Description

The present invention relates to a construction method of a building having an outer wall in which a plurality of outer wall materials are arranged one above the other, and a low outer wall material that can be used in this construction method.

Patent Document 1 discloses a large-sized outer wall panel and a structure for attaching the large-sized outer wall panel to the frame of a building. The large-format outer wall panel includes a panel frame and a plurality of vertically elongated outer wall materials including a heat insulating material attached to the panel frame. Further, the panel frame has an outer peripheral frame portion in which the left and right vertical frame members and the horizontal frame members at the upper and lower ends are assembled in a rectangular shape, and the outer peripheral frame portions are arranged at intervals in the horizontal width direction so that the upper and lower ends are vertically arranged. It consists of a plurality of vertical furring strips joined to the horizontal frame material of.

Further, Patent Document 2 discloses a curing device capable of performing construction of a building opening by installing it at each building opening without forming a scaffold.

Japanese Unexamined Patent Publication No. 2016-113839 Japanese Unexamined Patent Publication No. 2006-152695

However, none of the above patent documents discloses an efficient construction method for a building having an outer wall in which a plurality of outer wall materials are arranged one above the other. In addition, we do not disclose how to close the temporary opening provided on the outer wall.

In view of the above circumstances, the present invention can efficiently construct a building having an outer wall in which a plurality of outer wall materials are arranged one above the other, and can more efficiently close a temporary opening provided in the outer wall than the indoor side. The challenge is to provide a construction method for buildings that can be constructed.

The building construction method of the present invention is a building construction method in which an outer wall in which a plurality of outer wall materials are arranged vertically is provided on the outdoor side of the skeleton in order to solve the above problems, and the outer wall material and the base are provided. It includes a step of forming a temporary opening in the outer wall in which no material is present, and a step of fitting a low outer wall material having a height lower than the height of the temporary opening into the temporary opening from the indoor side of the skeleton. It is a feature.

According to the above method, the low outer wall material having a height lower than the height of the temporary opening is fitted from the indoor side of the skeleton, so that the fitting shape of the upper and lower outer wall materials is complicated at the temporary opening. Even if there is, the outer wall surface can be formed from the indoor side.

As the low outer wall material, an outer wall material having a lower engaging portion formed on the lower side of the low outer wall material is used, and when the low outer wall material is fitted into the temporary opening, the lower side engagement is performed. The joint may be engaged with the upper side of the outer wall material located below the low outer wall material. According to this, the low outer wall surface material can be engaged with the outer wall surface material located on the lower side thereof.

As the low outer wall material, an outer wall material having no engaging portion that engages with the lower side of the outer wall material located above the low outer wall material may be used.

As the outer wall material located above the low outer wall material, an outer wall material in which the lower end of the outer wall material is supported by a metal fitting may be used. According to this, the lower end side of the outer wall surface material located above the low outer wall surface material is supported by the hardware.

As the outer wall material located above the low outer wall material, an outer wall material capable of arranging a drainer covering the upper outdoor side of the low outer wall material may be used. According to this, it is possible to prevent rainwater from entering the upper part of the low outer wall surface material.

The lower end of the drainer may be located below the fixing member that fixes the low outer wall surface material to the base material. According to this, the fixing member can be hidden by the drainer to improve the appearance.

A portion of the holding hardware attached to the upper end of the low outer wall surface material, where the rising piece provided on the indoor side of the drainer is located above the lower end of the drainer and faces upward. And the outdoor side surface of the low outer wall material may be sandwiched between. According to this, it is possible to reduce the wobbling of the drainer due to wind pressure or the like.

As the outer wall material located above the temporary opening, an outer wall material fixed to the skeleton side at two locations above and below the indoor surface may be used. According to this, in a state where the temporary opening is used, that is, in a state where the outer wall material on the upper side of the temporary opening and the outer wall material on the lower side of the temporary opening are not connected by the base material, the upper side of the temporary opening. The outer wall material located in can be fixed to the skeleton side at two places, upper and lower. As a result, it is possible to reduce the rattling of the outer wall material on the upper side of the temporary opening when the temporary opening is used.

A second structure in which a plurality of outer wall materials are arranged one above the other and can be lifted as a whole is used, and is connected to the base materials of the upper and lower outer wall materials across a temporary opening in the structure during construction. The base material is removed after the structure at the time of construction is fixed to the skeleton of the building to obtain a temporary opening, while the low outer wall material is attached to the temporary opening from the indoor side of the skeleton, and then the low outer wall material is obtained. The base material of the above may be connected to the base material of the outer wall material on the upper side and the lower side by using the second base material. According to this, the second base material can be used without waste.

Further, the low outer wall material of the present invention is used in a construction method of a building in which an outer wall in which a plurality of outer wall materials are arranged vertically is provided on the outdoor side of the skeleton, and is used as a temporary opening in which the outer wall material and the base material do not exist. A low outer wall material to be attached, the lower side of the low outer wall material is provided with an engaging portion that engages with the upper side of the outer wall material located on the lower side, while the upper side of the low outer wall material. Is characterized by having a flat portion having no engaging portion that engages with the lower side of the outer wall surface material located on the upper side.

According to the present invention, there is an effect that the outer wall surface can be formed from the indoor side with respect to the temporary opening of the outer wall obtained by the absence of the outer wall surface material and the base material.

It is a rear view which showed the structure at the time of construction of the outer wall panel used in the construction method of the building which concerns on embodiment of this invention. FIG. 1A is an explanatory view showing a cross section of an upper part and a lower part of the outer wall material in the outer wall panel of FIG. 1, and FIG. 1B shows a fitting portion of the outer wall material arranged vertically in FIG. It is explanatory drawing. It is a front view which showed an example of the groundwork pedestal which assembles the structure at the time of construction of the outer wall panel of FIG. 1 on the ground. It is explanatory drawing which showed the state which attached the structure at the time of construction of the outer wall panel of FIG. 1 to the skeleton of a building. It is explanatory drawing which showed the state which the structure at the time of construction of the outer wall panel of FIG. 1 was lifted by the balance to attach to the frame of a building. It is a figure which shows the construction method of the building which concerns on embodiment of this invention, and is the explanatory view which showed the attachment to the temporary opening of the low outer wall material. It is a figure which shows the process which follows the process of FIG. 6, and is explanatory drawing which showed the attachment to the temporary opening of the low outer wall material. FIG. 3A is a schematic cross-sectional view showing a structure in which the upper part of the low outer wall material is covered with a drainer provided in the lower part of the upper outer wall material, and FIG. It is a perspective view which shows. It is a figure which shows the construction method of the building which concerns on embodiment of this invention, and is the perspective view which showed the fastener which fixes the outer wall material on the upper side of the low outer wall material to a skeleton.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in FIG. 1, the structure 5 at the time of construction of the outer wall panel used in the construction method of the building according to this embodiment is a first base material (a first base material) which is a base material in which a plurality of horizontally long outer wall materials 51 are arranged vertically. It has a structure that can be attached to the frame of a building in an integrated form by being connected to each other by a vertical furring strip) 52. In the example shown in FIG. 1, six first base materials 52 are provided, and each first base material 52 is made of an open cross-section steel material such as lip channel steel or a closed cross-section steel material such as a square steel pipe.

The outer wall surface material 51 is, for example, a metal sandwich panel in which a noncombustible heat insulating material 51a is sandwiched between steel plates 51b and 51c, as shown in FIGS. 2A and 2B. When the two outer wall materials 51 are arranged one above the other, the outer wall material 51 located in the upper stage is formed in two recesses 51d formed in the upper end surface of the outer wall material 51 located in the lower stage in the horizontal direction. By fitting the two convex portions 51e formed on the lower end surface in the lateral width direction, the upper and lower outer wall surface members 51 are combined so as not to be displaced from each other in the out-of-plane direction.

Further, for example, by using the groundwork frame 1 shown in FIG. 3, the outer wall panel in which the plurality of outer wall materials 51 are arranged vertically and connected by the first base material 52 is attached to the frame of the building to which the outer wall panel is attached. It can be assembled in a place different from the outer wall mounting location. The ground frame 1 is formed by, for example, vertically and horizontally assembling a plurality of columnar members 11 and beam-shaped members 12, but the structure thereof is not limited to that shown in FIG.

After setting the first base material 52 on the groundwork stand 1, the operator sets the outer wall material 51, screwes a screw or the like into the upper end side of the set outer wall material 51, and then screwes the outer wall material 51 into the set. 51 is fixed to the first base material 52 set earlier. By repeating this work, the structure 5 at the time of construction of the outer wall panel is produced.

In the structure 5 at the time of construction of the outer wall panel, for example, the first base material 52 is divided and separated vertically at a place where the outer wall material 51 on the second stage from the top should exist, and the outer wall surface at the uppermost position is separated. The material 51 is attached to the upper first base material 52, and the outer wall material 51 and the first base material 52, which are the second steps from the top, are not attached, and all the outer wall materials 51 are attached to the third and lower steps from the top. Is attached to the lower first base material 52. That is, the structure 5 at the time of construction of the outer wall panel of this example has a structure in which the outer wall surface material 51 and the first base material 52 do not exist only in the first step, which is the second step from the top.

Then, as shown in FIG. 1, the structure 5 at the time of construction of the outer wall panel is, for example, a second base material having a vertical length from the outer wall material 51 at the uppermost position to the outer wall material 51 at the sixth stage. It has 53. The second base material 53 is connected to the first base material 52 located above and below the position where the first base material 52 does not exist (a place where the first base material 52 is temporarily opened). The second base material 53 can be attached to the first base material 52 by using the groundwork frame 1. The second base material 53 is detachably attached to the first base material 52, and can be temporarily removed after the structure 5 at the time of construction is attached to the skeleton 7 of the building.

The first base material 52 is made of, for example, channel steel having two facing surface portions and a closed surface portion connecting the facing surface portions, and the outer wall surface material 51 is screw-fixed on one side of the facing surface portions.

Further, as shown in FIG. 4, the skeleton 7 of the building to which the structure 5 at the time of construction of the outer wall panel is attached includes, for example, a roof beam 71, a windproof beam 72, a floor beam 73, etc. on which the roof 7A is supported. There is. Further, the connecting member 71a is fixed to the roof beam 71 at a predetermined pitch, and the roof side windproof beam 72A is provided so as to penetrate the connecting member 71a. In the installation of the structure 5 at the time of construction of the outer wall panel to the building skeleton 7, for example, the other side of the facing surface portion of the first base material 52 is the roof side windproof beam 72A in the building skeleton 7 and the windproof. It is fixed to the beam 72, the floor beam 73, etc. by using metal fittings such as an L angle, fixing bolts, height adjusting bolts, and the like.

Further, for example, the second base material 53 is also made of channel steel, and the closed surface portion thereof is made to face the closed surface portion of the first base material 52, so that the second base material 53 is attached to the lateral position of the first base material 52. For example, bolt insertion holes are formed in the closed surface portion at a predetermined pitch, and the second base material 53 is attached to and detached from the first base material 52 by the bolts and nuts sewn through the bolt insertion holes. It can be attached freely. Even when the first base material 52 and the second base material 53 are square steel pipes having a closed cross-sectional shape, the same bolt mounting structure can be used. Further, the above-mentioned structure for making it removable is not limited to the structure using bolts and nuts.

Further, as shown in FIG. 5, the structure 5 at the time of construction of the outer wall panel can be lifted by using the balance 8. The balance 8 is provided with a fixing portion 81 on one side and a counterweight 82 on the other side. The fixing portion 81 is fixed to the first base material 52, the second base material 53, the outer wall material 51, or a member temporarily fixed to the first base material 52, the second base material 53, or the outer wall material 51 of the structure 5 when the outer wall panel is constructed. The balance 8 is suspended by a suspension source 83 such as a crane.

In the construction of the building, the structure 5 at the time of construction of the outer wall panel lifted as described above is attached to the skeleton 7 of the building by the first base material 52. More specifically, the upper first base material 52 in the structure 5 at the time of construction of the outer wall panel is fixed to the roof side windproof beam 72A, and the lower first base material 52 is fixed to the windproof beam 72.

As described above, after fixing the first base material 52 in the outer wall surface material 51 to the skeleton 7 of the building, the second base material 53 is removed from the first base material 52. Since the first base material 52 is fixed to the skeleton 7 side as described above, even if the second base material 53 is removed from the first base material 52, the outer wall surface material 51 will come off from the skeleton 7. There is no. Then, by removing the second base material 53 from the first base material 52 in this way, a temporary opening in which the second base material 53 does not exist at a place where the outer wall surface material 51 does not exist, that is, the base material shields the second base material 53. Form an opening that can be used during construction. For use during construction, for example, the scaffold can be taken out from the indoor side.

Next, attachment of the outer wall surface material to the temporary opening will be described with reference to FIGS. 6 and 7. The amount of protrusion of the outer wall material with respect to the base material in FIGS. 6 and 7 above, the position of the windproof beam, the shape of the steel material, and the like are examples, and the outer wall material with respect to the base material in FIGS. 4 and 5 used above is an example. The amount of protrusion, the position of the windproof beam, the shape of the steel material, etc. are also examples. In these figures, the amount of protrusion of the outer wall surface material with respect to the base material, the position of the windproof beam, the shape of the steel material, and the like are not necessarily the same.

A low outer wall surface material 501 whose height is lower than the height of the temporary opening is attached to the temporary opening. Like the other outer wall material 51, the low outer wall material 501 is provided with a recess 51d which is a lower engaging portion on the lower side of the low outer wall material 501. On the other hand, the low outer wall surface material 501 does not have an engaging portion (convex portion 51e) that engages with the lower side of the outer wall surface material 51 located on the upper side on the upper side of the low outer wall surface material 501. The upper side of the low outer wall surface material 501 forms a flat portion. The non-combustible heat insulating material 51a may be exposed on the upper side of the low outer wall surface material 501.

When the low outer wall material 501 is fitted into the temporary opening, the gap between the face materials is between the upper outer wall material 51 of the low outer wall material 501 and the upper part of the low outer wall material 501. Is provided and fitted from the indoor side of the skeleton 7. The gap between the face materials is set so that the concave portion 51d of the low outer wall material 501 and the convex portion 51e of the lower convex portion 51e do not interfere with each other when the low outer wall material 501 is taken out from the indoor side. It has a vertical clearance that allows it to move above the mounting position. In this fitting, for example, on the indoor side of the skeleton 7, the first base material 52 connected to the low outer wall surface material 501 is lifted by a lifting machine.

Then, when the low outer wall surface material 501 is fitted into the temporary opening, as shown in FIG. 7, the recess 51d, which is the lower engaging portion, is located on the lower side of the low outer wall surface material 501. It is engaged with the convex portion 51e on the upper side of the wall surface material 51.

Further, after the low outer wall surface material 501 is attached to the temporary opening from the indoor side of the skeleton 7, the second base material 53 once removed is connected to the first base material 52 of the low outer wall material 501. Further, the second base material 53 is connected to the first base material 52 of the upper and lower outer wall surface materials 51.

In the outer wall surface material 51 located above the low outer wall surface material 501, the lower end of the outer wall surface material 51, that is, the lower end exposed between the face material gaps is fixed by a long metal fitting 91. In the hardware 91, for example, two members are fixed to each other by rivets or the like, and as shown in FIG. 8A, the mounting surface portion 91a screwed to the outdoor side of the first base material 52, A first portion 91b extending from the mounting surface portion 91a to the outdoor side, a second portion 91c that fits into the recess 51d on the outdoor side of the outer wall surface material 51, and a third portion 91d facing the indoor side surface of the lower end portion of the outer wall material 51 on the outdoor side. It has a fourth portion 91e extending inward from the lower end of the third portion 91d. The hardware 91 may be attached to the first base material 52 at the time of manufacturing the structure 5 at the time of construction. The hardware 91 is a member for fixing the lower portion of the outer wall surface material 51 to the first base material 52. The hardware 91 is fixed by, for example, screwing.

Further, the outer wall surface material 51 located above the low outer wall surface material 501 goes out from the indoor surface side of the outer wall surface material 51 to the outdoor side through the gap between the face materials, and the low outer wall surface material 501 A drainer 92 that covers the outdoor side of the upper part of the can be arranged. As shown in FIG. 8A, the drainer 92 is a mounting surface portion 92a screwed to the outdoor side of the first base material 52, below the mounting surface portion of the hardware 91, and from the indoor side to the surface. A first part 92b extending diagonally to the outdoor side through a gap between materials, a second part 92c hanging from the outdoor side end of the first part 92b, and a second part bent indoor from the lower end of the second part 92c. It has a three-site 92d, and a rising piece 92e that rises from the indoor side end of the third portion 92d to the outdoor side and is located away from the second portion 92c. The rising piece 92e is located on the indoor side of the drainer 92 so as to be located above the lower end of the drainer 92 and face upward.

Further, the lower end of the drainer 92 is located below the fixing member 511 such as a drill screw that fixes the low outer wall surface material 501 to the first base material 52.

In a state where the rising piece 92e of the drainer 92 hits the outdoor side of the upper end of the low outer wall surface material 501, the holding metal 93, which is a short piece, is fitted into the upper end of the low outer wall material 501 at predetermined intervals. ..

As shown in FIG. 8B, the holding hardware 93 includes facing surfaces 93a and 93b facing each other and a connecting portion 93c connecting them. The facing surface portion 93a is located on the outdoor side of the facing surface portion 93b, and has a shorter hanging length than the facing surface portion 93b. The distance between the facing surface portion 93a and the facing surface portion 93b is, for example, about 0.5 mm wider than the thickness of the low outer wall surface material 501. By attaching the holding metal fitting 93 to the upper end portion of the low outer wall surface material 501, the rising piece 92e of the drainer 92 can be attached to the facing surface portion 93a of the holding metal fitting 93 and the outdoor side of the low outer wall surface material 501. Hold it between the surface and.

The outer wall surface material 51 located above the low outer wall surface material 501 is connected to the first base material when the temporary opening is used, that is, when the second base material 53 is removed from the first base material 52. The material 52 is fixed to the skeleton 7 side at two locations above and below the indoor surface. In this embodiment, the upper side of the indoor surface of the first base material 52 is connected to the upper side of the windproof beam 72 (the same applies to the roof side windproof beam 72A) by the fastener 4, and the indoor surface of the first base material 52 is connected by the clip 55. The lower side is connected to the lower side of the windproof beam 72.

The clip 55 is, for example, a short and vertically long member 55a, a screw 55b for fastening the member 55a to the indoor surface of the first base material 52, and a spacer for separating the member 55a from the indoor surface of the first base material 52. It is equipped with 55c. The member 55a is provided on the lower side of the member 55a in the tightened state of the screw 55b, and the member 55a can be hung downward by loosening the screw 55b.

The clip 55 projects upward from the indoor side surface of the first base material 52 with the screw 55b tightened. In the connection of the upper first base material 52 by the clip 55, the vertical piece of the L angle 72a is sandwiched between the indoor surface of the upper first base material 52 and the member 55a of the clip 55. ..

The clip 55 can be fastened with the screw 55b after the structure 5 at the time of construction is lifted and the fastener 4 is engaged with the skeleton 7 side. Alternatively, in a state where the screw 55b is loosened and the member 55a is hung downward, the structure 5 at the time of construction can be lifted and the fastener 4 can be engaged with the skeleton 7 side.

Further, as shown in FIG. 9, the fastener 4 is provided in a vertical surface portion 41 having a stepped shape or by arranging spacers on an indoor surface to form a step, and on the lower side of the vertical surface portion 41. The horizontal plate portion 42 is provided. The horizontal width of the horizontal plate portion 42 is wider than the horizontal width of the vertical surface portion 41. A substantially triangular rib portion 43 is provided between the vertical surface portion 41 and the horizontal plate portion 42 on each edge side of the vertical surface portion 41 by welding or the like.

When the upper surface portion of the vertical surface portion 41 is attached in contact with the first base material 52, the lower surface portion is separated from the first base material 52 to form a gap having a constant width with the first base material 52. To do. An insertion hole is formed in the upper surface portion in the horizontal direction, and a screw portion of a bolt 41a provided so as to project horizontally from the inside of the first base material 52 is passed through the insertion hole through the screw portion. By screwing the nut 41b, the fastener 4 can be fixed to the first base material 52.

Further, a receiving portion 6 for receiving the fastener 4 is provided on the windproof beam 72. The receiving portion 6 includes a load receiving plate 61 made of a steel material or the like, and an L angle 62 is provided on the load receiving plate 61 on the outdoor side edge of the windproof beam 72. The L angle 62 is provided with its horizontal piece 62a in contact with the upper surface of the load receiving plate 61. Further, the rising piece 62b of the L angle 62 is located on the outdoor side. The structure 5 at the time of construction is attached to the building by inserting the rising piece portion 62b into the gap formed by the vertical surface portion 41.

A pin insertion hole is formed at the center position (between the rib portions 43) of the horizontal plate portion 42 of the fastener 4. Further, a screw hole is formed at one end side position of the horizontal plate portion 42, and a load receiving bolt 42c having a rounded tip is screwed into the screw hole from above. A lock nut and a washer are attached to the load receiving bolt 42c. Further, a protruding screw insertion hole is formed at another end side position of the horizontal plate portion 42.

A positioning pin 61a and a protruding screw 61b are erected on the load receiving plate 61. The protruding screw 61b is fixed to the load receiving plate 61 by welding with the screw portion facing upward. The positioning pin 61a is provided at a position corresponding to the pin insertion hole of the horizontal plate portion 42, and the protruding screw 61b is provided at a position corresponding to the protruding screw insertion hole of the horizontal plate portion 42. There is. The horizontal piece portion 62a of the L angle 62 is formed with a through hole through which the positioning pin 61a and the protruding screw 61b pass. On the other hand, no through hole is formed in the portion corresponding to the load receiving bolt 42c, and the tip of the load receiving bolt 42c hits the upper surface of the horizontal plate portion 42. By screwing the nut 42e into the protruding screw 61b, a downward force can be applied to the horizontal plate portion 42 to maintain the adjusted height.

According to the above construction method, the temporary opening is provided with a low outer wall surface material 501 having a height lower than the height of the temporary opening, an outer wall surface material 51 above the low outer wall surface material 501, and the low outer wall surface. Since a gap between the face materials is provided between the upper part of the material 501 and the skeleton 7 is attached from the indoor side, the outer wall surface can be formed from the indoor side at the temporary opening.

As the low outer wall material 501, an outer wall material 51 having a lower engaging portion (recess 51d) formed on the lower side of the low outer wall material 501 is used, and the low outer wall material 501 is fitted into the temporary opening. When the lower side engaging portion (recessed portion 51d) is engaged with the upper side (convex portion 51e) of the outer wall surface material 51 located below the low outer wall surface material 501, the low outer wall surface is engaged. Normal engagement between the material 501 and the outer wall surface material 51 located below the material 501 can be performed.

When the lower end of the outer wall surface material 51 located above the low outer wall surface material 501 is supported by the hardware 91, the lower end of the outer wall surface material 51 located above the low outer wall surface material 501 is transferred to the first base material 52. Can be fixed to.

It is preferable to use the drainer 92 that covers the outdoor side of the upper part of the low outer wall surface material 501 by fixing it to the first base material 52 on the lower side of the upper outer wall material 51. According to this, it is possible to prevent rainwater from entering the flat portion above the low outer wall surface material 501.

The lower end of the drainer 92 may be located below the fixing member 511 that fixes the low outer wall surface material 501 to the first base material 52. According to this, the fixing member 511 can be hidden by the drainer 92 to improve the aesthetic appearance.

The rising piece 92e of the drainer 92 is formed by a facing surface portion 93a located on the outdoor side of the holding hardware 93 mounted on the upper end of the low outer wall surface material 501 and an outdoor side surface of the low outer wall surface material 501. When sandwiched between them, it is possible to reduce the wobbling of the drainer 92 due to wind pressure or the like.

As the outer wall surface material located above the temporary opening, the outer wall surface material 51 fixed to the skeleton 7 side at two locations above and below the indoor surface may be used. According to this, a state in which the temporary opening is used, that is, the outer wall material 51 on the upper side of the temporary opening and the outer wall material 51 on the lower side of the temporary opening are not connected by the first and second base materials 52 and 53. In the state, the outer wall surface material 51 located above the temporary opening is fixed to the skeleton 7 side at two upper and lower positions. Thereby, in the state of using the temporary opening, the rattling of the outer wall surface material 51 on the upper side of the temporary opening can be reduced.

Further, using the construction structure 5, the low outer wall surface material 501 is attached to the temporary opening from the indoor side of the skeleton 7, and then the first base material 52 of the low outer wall material 501 is attached to the second base material. If the material 53 is connected to the first base material 52 of the upper and lower outer wall surface materials 51, the second base material 53 can be used without waste.

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to those of the illustrated embodiments. It is possible to make various modifications and modifications to the illustrated embodiment within the same range as the present invention or within the same range.

1: Ground frame 4: Fastener 5: Structure at construction 6: Receiving part 7: Frame 7A: Roof 8: Balance 11: Columnar member 12: Beam-shaped member 41: Vertical surface part 41a: Bolt 41b: Nut 42: Horizontal plate Part 42c: Load receiving bolt 42e: Nut 43: Rib part 51: Outer wall surface material 51a: Non-combustible heat insulating material 51b: Steel plate 51c: Steel plate 51d: Concave 51e: Convex part 52: First base material 53: Second base material 55: Clip 55a: Member 55b: Screw 55c: Spacer 61: Load receiving plate 61a: Positioning pin 61b: Protruding screw 62: L angle 62a: Horizontal piece 62b: Rising piece 71: Roof beam 71a: Connecting material 72: Windproof beam 72A: Roof side windproof beam 72a: L angle 73: Floor beam 81: Fixed part 82: Counter weight 83: Suspension source 91: Hardware 91a: Mounting surface part 91b: First part 91c: Second part 91d: Third part 91e: Fourth part 92: Drainage 92a: Mounting surface part 92b: First part 92c: Second part 92d: Third part 92e: Rising piece 93: Holding metal 93a: Facing surface part 93b: Facing surface part 93c: Connecting part 501: Low outside Wall material 511: Fixing member

Claims (10)

A method of constructing a building in which an outer wall in which a plurality of outer wall materials are arranged one above the other is provided on the outdoor side of the skeleton, the step of forming a temporary opening in the outer wall in which the outer wall material and the base material do not exist, and the temporary opening. A method for constructing a building, which comprises a step of fitting a low outer wall surface material having a height lower than the temporary opening height from the indoor side of the skeleton. In the building construction method according to claim 1, as the low outer wall surface material, an outer wall surface material having a lower side engaging portion formed on the lower side of the low outer wall surface material is used, and the low outer wall material is used for the temporary opening. A method for constructing a building, characterized in that, when fitting the wall surface material, the lower side engaging portion is engaged with the upper side of the outer wall surface material located below the low outer wall surface material. In the building construction method according to claim 1 or 2, the low outer wall surface material does not have an engaging portion that engages with the lower side of the outer wall surface material located above the low outer wall surface material. A building construction method characterized by using wall materials. In the building construction method according to any one of claims 1 to 3, as the outer wall surface material located above the low outer wall surface material, the lower end of the outer wall surface material is supported by a metal fitting. A building construction method characterized by using materials. In the building construction method according to any one of claims 1 to 4, as an outer wall material located above the low outer wall material, a drainer covering the outdoor side of the upper part of the low outer wall material is provided. A building construction method characterized by using an outer wall material that can be arranged. The building construction method according to claim 5, wherein the lower end of the drainer is located below the fixing member for fixing the low outer wall surface material to the base material. In the building construction method according to claim 5 or 6, the rising piece provided on the indoor side of the drainer so as to be located above the lower end of the drainer and face upward is the low outer wall surface. A method of constructing a building, characterized in that it is sandwiched between a portion of the sandwiched hardware attached to the upper end of the material on the outdoor side and the surface of the low outer wall material on the outdoor side. In the building construction method according to any one of claims 1 to 7, the outer wall surface is fixed to the skeleton side at two places above and below the indoor surface as the outer wall surface material located above the temporary opening. A building construction method characterized by using materials. In the construction method of the building according to any one of claims 1 to 8, a construction-time structure in which a plurality of outer wall materials are arranged one above the other and can be lifted as a whole is used. The second base material, which is connected to the base material of the upper and lower outer wall materials across the temporary opening in the body, is removed after the structure at the time of construction is fixed to the building frame to obtain a temporary opening, while the temporary opening is used. After attaching the low outer wall material from the indoor side of the skeleton, the base material of the low outer wall material is connected to the base material of the upper and lower outer wall materials by using the second base material. A building construction method characterized by. A low outer wall material that is used in the construction method of a building in which an outer wall in which a plurality of outer wall materials are arranged vertically is provided on the outdoor side of the skeleton, and is attached to a temporary opening in which the outer wall material and the base material do not exist. The lower side of the low outer wall material is provided with an engaging portion that engages with the upper side of the outer wall material located on the lower side, while the upper side of the low outer wall material is the lower part of the outer wall material located on the upper side. A low outer wall material having a flat portion having no engaging portion that engages with the side.

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