Wall structure

Abstract

This technology provides a way to prevent damage or detachment of panels. [Solution] The wall structure comprises a plurality of rails that extend across a plurality of vertically arranged wall materials and are spaced apart horizontally, a panel located on the opposite side of the plurality of rails from the wall material side and provided across at least two horizontally adjacent rails, and a plurality of fixing members that fix the panel to the two adjacent rails, with one end of each of the plurality of rails rotatably provided on a first wall material among the plurality of wall materials, and the other end of each rail pivotably provided on one or more second wall materials among the plurality of wall materials excluding the first wall material, with the one end as a pivot point, and the panel is held by the plurality of fixing members such that the interface with the plurality of fixing members is slidable.

Description

Technical Field

[0001] This disclosure relates to a wall structure.

Background Art

[0002] Patent Document 1 describes a structure in which a plurality of extruded cement boards are attached to the side surface of a building body, and a finishing material is attached to the surface of the extruded cement board. The extruded cement board is attached to the side surface of the building body so as to be swingable. Further, the finishing material is bolt-fixed to the extruded cement board via a sliding material.

[0003] Patent Document 2 describes a lattice-like structure composed of a vertical member called a hataita and a horizontal member called a nama that are long. A facing material is attached to the nama via a plurality of fasteners. The plurality of fasteners are slidable along the grooves of the nama.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] The wall structure includes a plurality of wall materials arranged in a matrix in the vertical and horizontal directions. When viewed from the front of the wall material, the plurality of wall materials are individually attached to the building body so as to be swingable. The building body is a framework that supports a building. The building may be deformed by external forces such as earthquakes and strong winds. At this time, the horizontal displacement generated between the upper and lower floors is called inter-story displacement. The plurality of wall materials individually swing due to the inter-story displacement, thereby suppressing the force applied to the wall materials due to the inter-story displacement.

[0006] Wall structures may include panels attached to the surface of the wall material. Patent Document 1 exemplifies stone, ceramic tile, large tile, ceramic board, and metal board as finishing materials corresponding to panels. Conventionally, due to inter-story displacement, the wall material may oscillate individually, causing a force (shear stress) to be applied to the panel that causes the upper and lower edges to shift parallel to each other. As a result, the panel may break or fall off.

[0007] One aspect of this disclosure provides a technology for suppressing damage or detachment of panels. [Means for solving the problem]

[0008] A wall structure according to one aspect of the present disclosure comprises: a plurality of rails extending across a plurality of vertically arranged wall materials and spaced apart horizontally; a panel located on the opposite side of the plurality of rails from the wall material side and provided across at least two horizontally adjacent rails among the plurality of rails; and a plurality of fixing members for fixing the panel to the two adjacent rails, wherein one end of each of the plurality of rails is rotatably provided on a first wall material among the plurality of wall materials, and the other end is pivotably provided on one or more second wall materials among the plurality of wall materials excluding the first wall material, with the one end as a pivot point, and the panel is held by the plurality of fixing members such that its interface with the plurality of fixing members is slidable. [Effects of the Invention]

[0009] According to one aspect of this disclosure, damage or detachment of the panel can be suppressed. [Brief explanation of the drawing]

[0010] [Figure 1] Figure 1 is a front view of the wall structure 100 to which panel 3 is attached. [Figure 2] Figure 2 is a front view of the multiple wall materials 1 before the panels 3, multiple rails 2, etc., are attached. [Figure 3]Figure 3 shows a state in which multiple rails 2 are attached to multiple wall materials 1. [Figure 4] Figure 4 shows the state in which panels 3 are attached to multiple rails 2 as shown in Figure 3. [Figure 5] Figure 5 shows how rails 2 are attached to multiple wall materials 1. [Figure 6] Figure 6 shows a state in which rails 2 are attached to multiple wall materials 1. [Figure 7] Figure 7 shows the state of the rail 2 when inter-story displacement occurs in multiple wall materials 1. [Figure 8] Figure 8 shows an example of the configuration of the fixing member 4. [Figure 9] Figure 9 shows how panel 3 oscillates when interlayer displacement occurs in multiple wall materials 1. [Figure 10] Figure 10 shows multiple wall panels 1 where inter-story displacement is occurring. [Figure 11] Figure 11 shows multiple rails 2 that oscillate in accordance with the inter-story displacement. [Figure 12] Figure 12 shows multiple panels 3 that oscillate in accordance with the inter-story displacement. [Figure 13] Figure 13 is a diagram illustrating the first displacement absorption structure that absorbs the horizontal displacement of the adjacent panel 3. [Figure 14] Figure 14 is a diagram illustrating the first displacement absorption structure that absorbs the horizontal displacement of the adjacent panel 3. [Figure 15] Figure 15 is a diagram illustrating a second displacement absorption structure that absorbs the horizontal displacement of the adjacent panel 3. [Figure 16] Figure 16 is a diagram illustrating a second displacement absorption structure that absorbs the horizontal displacement of the adjacent panel 3. [Figure 17] Figure 17 is a diagram illustrating a third displacement absorption structure that absorbs the horizontal displacement of the adjacent panel 3. [Figure 18] Figure 18 is a diagram illustrating a third displacement absorption structure that absorbs the horizontal displacement of the adjacent panel 3. [Figure 19]FIG. 19 is a diagram for explaining the extra length of the panel wiring considering the interlayer displacement. [Figure 20] FIG. 20 is a diagram for explaining the extra length of the panel wiring considering the interlayer displacement. [Figure 21] FIG. 21 is a front view of the wall structure 100A to which the panel 3 is attached. [Figure 22] FIG. 22 is a sectional view taken along the line A-A of FIG. 21. [Figure 23] FIG. 23 is a perspective view of the panel 3 and the reinforcing member 10 seen from below. [Figure 24] FIG. 24 is an exploded view of the reinforcing member 10. [Figure 25] FIG. 25 is a diagram showing a state of assembling the reinforcing member 10. [Figure 26] FIG. 26 is a diagram showing a state of assembling the reinforcing member 10. [Figure 27] FIG. 27 is a diagram showing a state of assembling the reinforcing member 10. [Figure 28] FIG. 28 is a diagram showing a dimensional example of each part of the reinforcing member 10. [Figure 29] FIG. 29 is a diagram showing a configuration example of the reinforcing member 10A according to a modified example. [Figure 30] FIG. 30 is a diagram before the relative position of the second fastening member 20a in the X-axis direction changes. [Figure 31] FIG. 31 is a diagram after the relative position of the second fastening member 20a in the X-axis direction changes. <s [Figure 32] FIG. 32 is a diagram showing a dimensional example of each part of the reinforcing member 10A.

MODE FOR CARRYING OUT THE INVENTION

[0011] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In each drawing, the same or corresponding components are denoted by the same reference numerals, and the description thereof may be omitted. In each drawing, the X-axis direction, the Y-axis direction, and the Z-axis direction are perpendicular (vertical) to each other, the X-axis direction and the Y-axis direction are horizontal directions, and the Z-axis direction is a vertical direction. The X-axis direction is the depth direction.

[0012] [First Embodiment] An example of the configuration of a wall structure 100 according to the first embodiment of this disclosure will be described with reference to Figures 1 to 9. Figure 1 is a front view of the wall structure 100 with a panel 3 attached. Figure 2 is a front view of the multiple wall materials 1 before the panel 3, multiple rails 2, etc. are attached. Figure 3 shows the state in which the multiple rails 2 are attached to the multiple wall materials 1. Figure 4 shows the state in which the panel 3 is attached to the multiple rails 2 in Figure 3. Figure 5 shows the process of attaching the rails 2 to the multiple wall materials 1. Figure 6 shows the state in which the rails 2 are attached to the multiple wall materials 1. Figure 7 shows the state of the rails 2 when inter-story displacement occurs in the multiple wall materials 1. Figure 8 shows an example of the configuration of the fixing member 4. Figure 9 shows how the panel 3 swings when inter-story displacement occurs in the multiple wall materials 1.

[0013] The wall structure 100 disclosed herein is configured to suppress the application of a force (shear stress) that causes the upper and lower edges of the panel 3 to shift parallel to each other, even when multiple wall materials 1 swing individually due to inter-story displacement, and to suppress positional displacement of the panel 3 relative to the wall material 1. The wall structure 100 may comprise multiple rails 2 provided on multiple wall materials 1, panels 3, and fixing members 4.

[0014] The wall material 1 includes, for example, a cement board. The cement board has high rigidity and can support heavy panels 3. The cement board is, for example, an extruded cement board or an autoclaved lightweight aerated concrete (ALC) board. From the viewpoint of weight reduction, the wall material 1 is preferably hollow.

[0015] Multiple wall panels 1 may be arranged in a matrix in the vertical and horizontal directions, each being pivotable, and attached to the building's frame. The frame can be interpreted as the framework that supports the building. Buildings can deform due to external forces such as earthquakes and strong winds. The horizontal displacement that occurs between the upper and lower floors at this time is called inter-story displacement. Multiple wall panels 1 suppress the force acting on multiple wall panels 1 by pivoting individually due to inter-story displacement. Multiple wall panels 1 tend to pivot in the same phase, that is, tend to tilt in the same direction at the same angle. The wall panels 1 may be rectangular when viewed from the front. Support members may be provided on the lower surface of the wall panels 1 to pivotably support the wall panels 1 relative to the frame. These support members may be made of, for example, rigid packing or steel. Figure 2 and others illustrate two sets of four wall panels 1 arranged vertically. The multiple wall panels 1 may include, for example, a first wall panel 1-1 provided on the lower side in the vertical direction, and one or more second wall panels 1-2 arranged above the first wall panel 1-1.

[0016] As shown in Figure 3, the rails 2 extend across a plurality of vertically arranged wall members 1 and may be arranged horizontally at intervals. Each of the plurality of rails 2 may have one end 2a rotatably mounted on the first wall member 1-1 among the plurality of wall members 1. In addition, each of the plurality of rails 2 may have the other end 2b rotatably mounted on one or more second wall members 1-2 among the plurality of wall members 1, excluding the first wall member 1-1, with the one end 2a as the pivot point.

[0017] (Rail 2: Dimension example) If the length of panel 3 in the Z-axis direction is 2400 mm, the length of rail 2 in the Z-axis direction should preferably be, for example, 900 mm or more and 2400 mm or less, taking ease of installation into consideration.

[0018] For example, as shown in Figure 5, the rail 2 may include a first hole wall 21 that forms a hole into which a first fixing member 211 is inserted to rotatably support one end 2a in the first wall material 1-1, and a second hole wall 22 into which a second fixing member 221 is inserted to rotatably support the other end 2b in the second wall material 1-2, forming a hole that extends in the direction of extension of the rail 2.

[0019] The first hole wall 21 may be formed on the first piece material 201 that connects one end 2a of the rail 2 to the first wall material 1-1. The first hole wall 21 forms a perfectly circular hole without strain or distortion, and the second hole wall 22 forms an elliptical or oblong hole.

[0020] The second hole wall 22 may be formed on each of the one or more second piece members 202 that connect the other end 2b of the rail 2 to the second wall material 1-2. The first piece member 201 and the second piece member 202 are each metal rectangular plate members, which are welded, for example, to the Y-axis end of the L-shaped rail 2.

[0021] (2nd hole wall 22: example dimensions) When the inter-story displacement angle of multiple wall panels 1 is 1 / 50 rad, the maximum displacement between panels is 48 mm. Dimensions of the second hole wall (loose) (vertical width) = √(48^2 + 2400^2) - 2400 = 0.5 mm + construction accuracy (5 mm) + half the bolt dimension (5 mm) = 10.5 mm

[0022] The first hole wall 21 and the second hole wall 22 may be formed directly on the rail 2. However, by using the first piece material 201 and the second piece material 202, the reduction in strength of the rail 2 due to hole processing can be suppressed. In addition, for example, when inserting the first fixing member 211 into an L-shaped rail 2 and fastening them, the tool used to fasten the first fixing member 211 will be less likely to interfere with the L-shaped rail 2, which can improve work efficiency.

[0023] As shown in Figure 3, when multiple second piece members 202 are used, the multiple second piece members 202 may be arranged vertically apart from each other. In the example in Figure 3, one second piece member 202 is located on each of the three second wall members 1-2 arranged vertically, and second fixing members 221 may be inserted into these second piece members 202 as shown in Figure 5.

[0024] The vertical width of the second hole wall 22 is wider than the horizontal width of the first hole wall 21. The vertical width of the second hole wall 22 may be set according to the amount of horizontal displacement that occurs when inter-story displacement occurs in the first wall material 1-1 and the multiple second wall materials 1-2.

[0025] Panel 3 is positioned on the outside of the wall material 1 and is, for example, a solar panel. By incorporating the solar panel into the building's wall structure 100, the building can be utilized as a new renewable energy source. The solar panel has, for example, a power generation cell between two glass plates. The number of glass plates may be one. For weight reduction, the solar panel may have a resin plate instead of a glass plate. Panel 3 may also be made of film, plastic, signboard, marker, stone, ceramic plate, large tile, ceramic plate, glass plate, metal plate, etc.

[0026] As shown in Figure 4, panel 3 is located on the side opposite to the wall material 1 side of the multiple rails 2 (the side with a positive X-axis), and may be provided across at least two horizontally adjacent rails 2 of the multiple rails 2. As shown in Figure 4, the multiple panels 3 may be provided, for example, in a matrix in the vertical and horizontal directions, each being able to swing. The multiple panels 3 swing individually due to inter-story displacement, thereby suppressing the force applied to the multiple wall materials 1.

[0027] For example, as shown in Figures 8 and 9, by using a fixing member 4 that secures two adjacent panels 3, multiple panels 3 can be individually oscillated when there is interlayer displacement of multiple wall materials 1. Specifically, the fixing member 4 slidably holds the frames 3a of two adjacent panels 3 to the panels 3, thereby allowing multiple panels 3 to be individually oscillated. The fixing member 4 may be interpreted as, for example, a metal member with a U-shaped cross-section when viewed in a plane including the YZ axis. The fixing member 4 may, for example, be located between two adjacent panels 3 and have a shape that extends in the Z-axis direction. The fixing member 4 may be fixed with bolts to a long metal member 5 with an L-shaped cross-section when viewed in a plane including the YZ axis. The long member 5 may be fixed to a rail 2 shown in Figure 5 using bolts or the like. Note that the long member 5 is not limited to an L-shaped metal member, but may also be, for example, a metal member with a U-shaped cross-section when viewed in a plane including the XZ axis.

[0028] Panel 3 may be held by the fixing member 4 such that its interface with the fixing member 4 is slidable, for example, in the Z-axis direction. In other words, the fixing member 4 is in contact with two adjacent panels 3 so as to be slidable on top of each other. This allows the panel 3 to be pivotably held to the wall material 1 via the rail 2. Although Figures 8 and 9 show one fixing member 4, there may be two or more fixing members 4, for example, between two adjacent panels 3 in the Y-axis direction. The two or more fixing members 4 may be arranged apart from each other in the Z-axis direction.

[0029] Next, referring to Figures 10 to 12, the operation of the wall structure 100 when inter-story displacement occurs in multiple wall panels 1 will be explained.

[0030] Figure 10 shows multiple wall materials 1 with inter-story displacement, Figure 11 shows multiple rails 2 that oscillate in accordance with the inter-story displacement, and Figure 12 shows multiple panels 3 that oscillate in accordance with the inter-story displacement.

[0031] When a building deforms due to external forces such as earthquakes or strong winds, causing inter-story displacement, the multiple wall panels 1 oscillate individually due to the inter-story displacement. At this time, as shown in Figure 11, one point of the rail 2, which serves as the base material, is pin-connected to the wall panel 1, while the other points are loosely connected to one or more wall panels 1. Therefore, the rail 2 rotates around the first piece material 201 as a pivot point, following the inter-story displacement. This prevents the rail 2 from constraining the inter-story displacement of the multiple wall panels 1.

[0032] Furthermore, as shown in Figure 9, since the interface between panel 3 and the fixing member 4 is slidable in the Z-axis direction, when attached to the rail 2, it rocks (oscillates) in accordance with the interlayer displacement (see Figure 12). This prevents panel 3 from hindering the oscillation of the multiple rails 2.

[0033] Thus, according to the wall structure 100 of this disclosure, it is possible to suppress the force applied to the wall material 1 due to inter-story displacement. Furthermore, since the rail 2 slidably supports the panel 3, it is possible to suppress the force (shear stress) that causes the panel 3 to shift horizontally due to inter-story displacement. Therefore, damage or detachment of the panel 3 can be suppressed.

[0034] (Another configuration example 1) Figures 13 and 14 illustrate the first displacement absorption structure that absorbs horizontal displacement between adjacent panels 3.

[0035] Figures 13 and 14 show frames 3a of two panels 3 arranged horizontally (in the Y-axis direction) and a fixing member 4 provided between them. The fixing member 4, which has a U-shape when viewed in cross-section in a plane including the XY axis, may include a bottom portion 41 fixed to the elongated member 5, two side wall portions 42 extending in the X-axis direction from the Y-axis end of the bottom portion 41 and facing the Y-axis end of the frame 3a, and a holding portion 43 that holds the frame 3a.

[0036] The holding portion 43 may hold the frame 3a by extending from the X-axis end of the side wall portion 42 in a direction opposite to the direction in which the two side wall portions 42 face each other, and contacting the X-axis end of the frame 3a.

[0037] The fixing member 4 may be provided with multiple ribs 4a to reinforce it in order to prevent plastic deformation of the fixing member 4 due to compressive force from the panel 3 that swings during interlayer displacement (deformation that remains even after the external force is removed). Specifically, the fixing member 4 may include, for example, a rib 4a provided at a position opposite to the Y-axis end of the frame 3a and extending from the holding portion 43 toward the side wall portion 42, and a rib 4a provided in the region 42a where the two side wall portions 42 face each other and extending from the side wall portion 42 toward the bottom surface portion 41.

[0038] As shown in Figure 14, when inter-story displacement occurs, the movement of the two panels 3 in the Y-axis direction acts as a compressive force on the fixing member 4. This causes the side walls 42 of the fixing member 4 to deflect, thereby absorbing the movement of the two panels 3 (panel displacement) in the region 42a where the two side walls 42 face each other. The ribs 4a improve the strength of the fixing member 4, allowing the deflection of the side walls 42 to be permitted within the elastic deformation range of the fixing member 4. Panel displacement can be interpreted as the amount of displacement in the Y-axis direction between the panels 3. For example, if the inter-story displacement angle of multiple wall materials 1 is 1 / 50 rad (= 1.146°: Y) and the width of the panel 3 in the Y-axis direction is 1134 mm (d), then X = d × cosY, so X is 1133.77, and the panel displacement is approximately 0.3 mm (Xd).

[0039] Thus, the fixing member provided between two horizontally adjacent panels has a structure that absorbs the movement of the panels by bending when the panels move horizontally, and a rib that allows such bending within the elastic deformation range of the fixing member. This makes it possible to hold adjacent panels 3 while absorbing the horizontal displacement between adjacent panels 3.

[0040] (Another configuration example 2) Figures 15 and 16 illustrate a second displacement absorption structure that absorbs the horizontal displacement of adjacent panels 3. The difference from the first displacement absorption structure shown in Figures 13 and 14 is that the second displacement absorption structure uses elastic members 4b instead of multiple ribs 4a.

[0041] The elastic member 4b is, for example, foamed rubber, foamed sponge, foamed plastic, or foamed resin. The elastic member 4b may be provided between the side wall portion 42 and the Y-axis end of the frame 3a.

[0042] In order for the fixing member 4 to hold the frame 3a, it is desirable that when no inter-story displacement occurs, the elastic member 4b is in contact with the side wall portion 42 and also in contact with the frame 3a. For this reason, the width in the Y-axis direction of the fixing member 4 before it is installed in the region from the side wall portion 42 to the frame 3a may be set to a dimension of ±0% to ±10% of the width from the side wall portion 42 to the frame 3a.

[0043] As shown in Figure 16, when the two panels 3 move in the Y-axis direction during inter-story displacement, a compressive force acts on the fixing member 4. The elastic member 4b then deflects (is compressed), allowing the movement of the two panels 3 (panel displacement) to be absorbed by the two elastic members 4b. By providing the two elastic members 4b, the force from the panels 3 does not directly act on the fixing member 4, thus allowing deflection of the side wall portion 42 within the elastic deformation range of the fixing member 4. Furthermore, by providing the elastic members 4b, the pressure from the frame 3a is prevented from concentrating on only a part of the fixing member 4, which can improve the lifespan of the fixing member 4.

[0044] Thus, the structure has an elastic member provided between horizontally adjacent panels and a fixing member. When there is no interlayer displacement in the multiple wall materials, the elastic member is in contact with both the fixing member and the panel. This allows the structure to hold adjacent panels 3 while absorbing horizontal displacement between adjacent panels 3.

[0045] (Other configuration example 3) Figures 17 and 18 illustrate a third displacement absorption structure that absorbs the horizontal displacement of adjacent panels 3. The third displacement absorption structure may include, for example, two divided fixing parts 4A and 4B, as shown in Figure 17, in the fixing member 4.

[0046] The divided fixing parts 4A and 4B may be arranged at a predetermined distance from each other in the Y-axis direction (horizontal direction), and each may be provided with the aforementioned bottom surface 41, side wall 42, and holding part 43.

[0047] At least one elongated hole 41a is formed in the bottom surface 41 of each of the divided fixing part 4A and the divided fixing part 4B, respectively, which allows movement of the divided fixing part 4A and the divided fixing part 4B in the Y-axis direction. The width of the wall surface forming the elongated hole 41a in the Y-axis direction may be wider than the width of the wall surface in the Z-axis direction.

[0048] The gap G from the Y-axis end face of the bottom surface 41 of the divided fixing part 4A to the Y-axis end face of the frame 3a on the divided fixing part 4B side facing the divided fixing part 4A may be set to, for example, 0.5 mm in order to allow panel displacement (for example, about 0.3 mm).

[0049] Similarly, the gap G from the Y-axis end face of the bottom surface 41 of the divided fixing part 4B to the Y-axis end face of the frame 3a on the divided fixing part 4A side facing the divided fixing part 4B may be set to, for example, 0.5 mm in order to allow panel displacement (for example, about 0.3 mm).

[0050] The fastening member 30 is inserted into the elongated hole 41a, and the fastening member 30 is fastened to the elongated member 5. At this time, the fastening member 30 is fastened to the elongated member 5 in such a way that the head of the fastening member 30 inserted into the elongated hole 41a does not restrict the movement of the bottom portion 41, that is, the bottom portion 41 is able to swing relative to the elongated member 5. In other words, since the elongated member 5 is fixed to the rail 2 shown in Figure 5, the divided fixing portion 4A and the divided fixing portion 4B are fixed so as to be able to swing relative to the rail 2.

[0051] With this configuration, as shown in Figure 18, when the two panels 3 move in the Y-axis direction during interlayer displacement, a compressive force acts on the fixing member 4, that is, a force that pushes the divided fixing parts 4A and 4B closer together, causing the divided fixing parts 4A and 4B to slide on the elongated member 5. Furthermore, the gap G prevents the respective Y-axis end faces of the divided fixing parts 4A and 4B from contacting the opposing frame 3a.

[0052] Thus, in the third displacement absorption structure, the fixing member has multiple segmented fixing parts that are arranged horizontally apart and pivotably fixed to multiple rails, and the horizontal gap from the horizontal end face of each of the segmented fixing parts to the panel is set to a dimension that allows the panel to move. As a result, by sliding the segmented fixing parts 4A and 4B, the horizontal displacement between adjacent panels 3 can be absorbed by the segmented fixing parts 4A and 4B while holding adjacent panels 3. The sliding of the segmented fixing parts 4A and 4B prevents the segmented fixing parts 4A and 4B from undergoing plastic deformation due to the force of the panel 3, which can improve the lifespan of the fixing member 4.

[0053] (Other configuration example 4) (Prerequisites and Issues) When installing finishing materials with cables for solar modules and other devices attached to a steel-framed wall, a mechanism that allows for displacement is necessary to accommodate inter-story displacement during earthquakes. However, differences in displacement between finishing materials and between the wall and the finishing material can cause tension on the cables, leading to cable breakage or connector detachment and malfunction. While longer cables can accommodate displacement, this increases cable resistance, reducing power generation, requires extra cable length which is uneconomical, makes cable handling during installation more complicated, and can lead to snagging on other components.

[0054] (Solution) Figures 19 and 20 illustrate the excess length of panel wiring considering inter-story displacement. Figure 19 shows panel 3 before inter-story displacement occurs, and Figure 20 shows panel 3 when inter-story displacement occurs.

[0055] For example, if 20 panels 3 are arranged vertically and these are treated as a single block (1 string), and each panel 3 is electrically connected in series with a cable, it is desirable to take into account the excess length of the cable due to inter-layer displacement.

[0056] Cables L1 and L2 shown in Figure 19 can be interpreted as, for example, cables routed between the wall material 1 and the panel 3, and cable L3 as a cable routed between two vertically arranged panels 3. Cable L1 is routed from the through-hole 6 formed in the wall material 1 to the negative terminal 7, and cable L2 is routed from the through-hole 6 to the positive terminal 8.

[0057] One end of cable L3, which extends from the negative terminal 7, is connected to the positive terminal 8, indicated by symbol A. One end of cable L1, which extends from the through hole 6, is connected to the negative terminal 7, indicated by symbol B. One end of cable L2, which extends from the through hole 6, is connected to the positive terminal 8, indicated by symbol C.

[0058] If one through-hole 6 is formed in the panel 3 for one string, the length of the cable L4 routed from the through-hole 6 to the terminal 9 is approximately 35m. Cable L4 may be interpreted as part of cable L3 or part of cable L2.

[0059] In Figure 20, the normal lines represent cables L1, L2, and L3 before inter-story displacement occurs, while the thick lines represent cables L1, L2, and L3 after inter-story displacement occurs.

[0060] When wiring each cable, the finishing material (panel 3) is installed so that the positive and negative terminals are aligned vertically, which simplifies cable wiring and eliminates the need for unnecessary cable length.

[0061] (Method for calculating excess cable length) For example, the excess length of cable L3 is set based on the following calculation. Point A: Between finishing materials It is necessary to allow for extra length by calculation in advance. Assuming the height of the finishing material is H=1763mm and the cable is installed in the center of the finishing material. Cable thermal shrinkage: 1763 × 80°C (actual temperature difference) × 17.7 × 10^-6 / °C (coefficient of linear expansion of the cable) = 2.5 mm Required minimum extra length 2.5mm

[0062] For example, the excess length for cable L1+L2 or cable L1+L4 is set based on the following calculation. Points B and C: Between the finishing material and the wall material (assuming the longest possible distance in one string) For a system voltage of 1000V, if the PV module Voc is 50V, 20 modules are arranged as one string, and the design ensures that terminal 9 is located in the center of panel 3. Displacement due to bottom panel locking: 1763 / 2 × 1 / 50 = 17.7 mm Displacement of the uppermost cable exit hole (through hole 6): 35000mm × 1 / 50 = 700mm Horizontal displacement of the cable during an earthquake: 700 - 17.7 = 682.3 mm Cable elongation: √(682.3^2 + 35000^2) = 35007 - 35000 = 7 mm Cable thermal shrinkage δTC mm: 35000 × 80 × 17.7 × 10^-6 = 49.6 mm Required minimum extra length 56.6mm

[0063] Since points B and C are located at approximately half the height of the panel, measures such as fixing them to the substrate will be taken to prevent interference (snagging) with the substrate or other components.

[0064] [Second Embodiment] An example of the configuration of a wall structure 100A according to the second embodiment of this disclosure will be described with reference to Figures 19 to 28. Figure 21 is a front view of the wall structure 100A with the panel 3 attached. Figure 22 is a cross-sectional view taken along the line AA in Figure 21. Figure 23 is a perspective view of the panel 3 and reinforcing member 10 from below. Figure 24 is an exploded view of the reinforcing member 10. Figures 25, 26, and 27 show the assembly of the reinforcing member 10. Figure 28 shows an example of the dimensions of each part of the reinforcing member 10.

[0065] The wall structure 100A of this disclosure may include, for example, one or more rails 2 that span across a plurality of wall materials 1 arranged in two or more horizontal directions, panels 3 whose upper and lower ends are held by the rails 2, and reinforcing members 10 of the panels 3.

[0066] The wall material 1 includes, for example, a cement board. The cement board has high rigidity and can support heavy panels 3. The cement board is, for example, an extruded cement board or an autoclaved lightweight aerated concrete (ALC) board. From the viewpoint of weight reduction, the wall material 1 is preferably hollow.

[0067] Multiple wall panels 1 may, for example, be arranged in a matrix in the vertical and horizontal directions, each swingable, and attached to the building's frame. The frame can be interpreted as the framework that supports the building. Buildings can deform due to external forces such as earthquakes and strong winds. The horizontal displacement that occurs between the upper and lower floors at this time is called inter-story displacement. Multiple wall panels 1 suppress the forces acting on multiple wall panels 1 by swinging individually due to inter-story displacement. Multiple wall panels 1 tend to swing in the same phase, that is, tend to tilt in the same direction at the same angle. The wall panels 1 may be rectangular when viewed from the front. Support members may be provided on the lower surface of the wall panels 1 to swingly support the wall panels 1 relative to the frame. These support members may be made of, for example, rigid packing, steel, etc.

[0068] Figure 21 illustrates, as an example, a total of five rails 2 attached vertically and spaced apart from each other to a wall material 1, and a total of ten panels 3 placed horizontally and spaced apart from each other between each rail 2.

[0069] Panel 3 is positioned on the outside of the wall material 1 and is, for example, a solar panel. By incorporating the solar panel into the building's wall structure 100A, the building can be utilized as a new renewable energy source. The solar panel has, for example, a power generation cell between two glass plates. The number of glass plates may be one. For weight reduction, the solar panel may have a resin plate instead of a glass plate. Panel 3 may also be made of film, plastic, signboard, marker, stone, ceramic plate, large tile, ceramic plate, glass plate, metal plate, etc.

[0070] Each rail 2 may be provided on the outside of the wall material 1 using fixing members (not shown). Each of these panels 3 surrounds the panel 3 and is formed in the shape of a rectangular frame when viewed from the front of the wall material 1, and may include two sets of frames 3a and 3b facing each other.

[0071] Of the two sets of frames 3a and frames 3b, one set of frames 3a that is not supported by the rail 2 may be fitted with a reinforcing member 10 to reinforce that set of frames 3a. Specifically, the reinforcing member 10 may be provided on each of the sets of frames 3a that extend vertically (in the Z-axis direction). The reinforcing member 10 may have a structure that extends in the same direction as the extension direction of the set of frames 3a, specifically in the vertical direction (in the Z-axis direction). For example, one end of the reinforcing member 10 in the +Z-axis direction may be provided near the frame 3a provided on the upper side of the panel 3, and the other end of the reinforcing member 10 in the -Z-axis direction may be provided near the frame 3a provided on the lower side of the panel 3. These ends of the reinforcing member 10 are not in contact with the rail 2. The other set of frames 3b may be supported by the rail 2 that extends horizontally (in the Y-axis direction).

[0072] As shown in Figure 22, the reinforcing member 10 has a structure that sandwiches at least a portion of a pair of frames 3a in a direction perpendicular to the extension direction of the pair of frames 3a. Specifically, the reinforcing member 10 may include a first member 11 that extends in the same direction as the extension direction of the pair of frames 3a, a second member 12 that sandwiches a portion of the pair of frames 3a together with the first member 11, and a first fastening member 13 that fastens the first member 11 and the second member 12 together.

[0073] The first fastening member 13 may include a bolt 13a whose threaded portion penetrates the first member 11 and the second member 12, a washer 13b provided on the threaded portion of the bolt 13a, and a nut 13c fastened to the threaded portion of the bolt 13a.

[0074] The first member 11 may include a hollow pipe 11a located between a pair of frames 3a and a wall material 1, extending in the same direction as the extension direction of the pair of frames 3a and in contact with the pair of frames 3a, and a plate 11b extending from the pipe 11a toward the front side of the panel 3, with its tip 11b1 supporting the front of the pair of frames 3a. The first fastening member 13 may fasten the pipe 11a and the second member 12.

[0075] The pipe 11a can be interpreted as a long aluminum member with a rectangular shape when viewed in cross-section with a plane containing the XY axes. The plate 11b can be interpreted as an aluminum member with an L-shaped shape when viewed in cross-section with a plane containing the XY axes. The width of the plate 11b in the X-axis direction is at least wider than the width of the frame 3a in the X-axis direction. The plate 11b and the pipe 11a form a U-shaped space W (see Figure 24) when viewed in cross-section with a plane containing the XY axes.

[0076] A portion of frame 3a is formed in a rectangular shape when viewed in cross-section with a plane containing the XY axes. When this portion is placed in space W, the first surface 3a1 and the second surface 3a2 (see Figure 24) of frame 3a are in contact with the first member 11. The first surface 3a1 may be interpreted as a surface on the outer periphery of frame 3a that is parallel to the plane containing the XZ axes. The first surface 3a1 faces plate 11b. The second surface 3a2 may be interpreted as a surface on the outer periphery of frame 3a that is parallel to the plane containing the YZ axes. The second surface 3a2 faces pipe 11a.

[0077] The second member 12 may be interpreted as an aluminum member whose cross-sectional shape, when viewed in a plane containing the XY axes, is L-shaped. Two or more second members 12 may be provided for one pipe 11a; for example, multiple second members 12 may be provided for one pipe 11a spaced apart from each other in the Z-axis direction. The first surface 12_1 of the second member 12 is positioned on the pipe 11a, and the second surface 12_2 of the second member 12 is positioned on the second surface 3a2 of the frame 3a. The first surface 12_1 of the second member 12 may be interpreted as a surface of the L-shaped second member 12 parallel to the plane containing the XZ axes. The second surface 12_2 of the second member 12 may be interpreted as a surface of the L-shaped second member 12 parallel to the plane containing the YZ axes.

[0078] When a reinforcing member 10 is provided on the frame 3a, for example, as shown in Figure 25, the first member 11 is positioned such that the plate 11b of the first member 11 faces the first surface 3a1 of the frame 3a.

[0079] Then, as shown in Figure 26, the first member 11 is attached to the frame 3a such that the plate 11b of the first member 11 is in contact with the first surface 3a1 of the frame 3a. At this time, the pipe 11a of the first member 11 is in contact with the second surface 3a2 of the frame 3a.

[0080] In this state, as shown in Figures 26 and 27, the second member 12 is attached to the pipe 11a of the first member 11 by passing the threaded portion 13a2 of a bolt 13a, which has a head 13a1 pre-installed on the pipe 11a of the first member 11, through a threaded hole 12_1a formed on the first surface 12_1 of the second member 12.

[0081] As shown in Figure 27, the washer 13b is attached to the threaded portion 13a2 of the bolt 13a with the second surface 12_2 of the second member 12 in contact with the second surface 3a2 of the frame 3a, specifically the surface of the second surface 3a2 opposite to the pipe 11a side. A nut 13c is then fastened. In this way, the reinforcing member 10 is fixed to the frame 3a, sandwiched between the first member 11 and the second member 12.

[0082] (Example dimensions of reinforcing member 10) Figure 28 shows examples of the dimensions of each part of the reinforcing member 10. Width W1 in the Y-axis direction of pipe 11a: 30 mm Width W2 of the first member 11 in the X-axis direction: 83 mm Frame 3a's width in the X-axis direction W3: 40mm Width W4 of tip 11b1 in the X-axis direction: 2.5 mm Width W5 in the Y-axis direction of tip 11b1: 18mm Width W6 in the X-axis direction of the first surface 12_1 of the second member 12: 45 mm

[0083] (modified version) Figure 29 shows an example of the configuration of the reinforcing member 10A according to a modified example. The reinforcing member 10A is configured such that even if a gap G occurs between the pipe 11a of the first member 11 and the frame 3a due to the small width of the frame 3a in the X-axis direction, the first member 11 can sandwich the frame 3a in the X-axis direction by filling this gap G.

[0084] In addition to the configuration shown in Figure 22, the reinforcing member 10A may further include a gap-filling member 20. The gap-filling member 20 may be interpreted as a member that fills the gap G between the pipe 11a and the frame 3a. The gap-filling member 20 may include a second fastening member 20a extending from the pipe 11a toward the frame 3a, and a plate-shaped member 20b located between the tip of the second fastening member 20a and the frame 3a, which pushes the pipe 11a in the direction in which the second fastening member 20a is pushed. The direction in which the second fastening member 20a is pushed may be interpreted as the direction of movement of the second fastening member 20a, and specifically, it may be interpreted as the X-axis direction. The second fastening member 20a is, for example, a screw or bolt with a flat head facing the plate-shaped member 20b.

[0085] Figure 30 shows the second fastening member 20a before its relative position in the X-axis direction changes, and Figure 31 shows the second fastening member 20a after its relative position in the X-axis direction changes.

[0086] When the threaded portion of the second fastening member 20a is screwed into, for example, the through hole 11a1 formed in the pipe 11a of the first member 11, the relative position of the second fastening member 20a with respect to the pipe 11a of the first member 11 in the X-axis direction changes. When the position of the tip of the second fastening member 20a in the positive X-axis direction changes, the position of the plate-shaped member 20b, which is positioned in contact with the second fastening member 20a, also changes in the X-axis direction.

[0087] As a result, the surface of frame 3a in the negative X-axis direction is pressed against the plate-shaped member 20b, and the pipe 11a of the first member 11 is fixed to frame 3a. In this state, by attaching the second member 12 to the first member 11, the first member 11 and the second member 12 sandwich frame 3a, and the reinforcing member 10A is firmly fixed to frame 3a.

[0088] (Example dimensions of reinforcing member 10A) Figure 32 shows examples of the dimensions of each part of the reinforcing member 10A. Width W1 in the Y-axis direction of pipe 11a: 30 mm Width W2 of the first member 11 in the X-axis direction: 83 mm Frame 3a's width in the X-axis direction W3: 35mm Width W4 of tip 11b1 in the X-axis direction: 2.5 mm Width W5 in the Y-axis direction of tip 11b1: 18mm Width W6 in the X-axis direction of the first surface 12_1 of the second member 12: 45 mm Gap W7 between pipe 11a and plate-shaped member 20b: 5mm The distance W8 from the negative X-axis plane of pipe 11a to the negative X-axis end face of the first face 12_1 of the second member 12 is 5 mm.

[0089] As described above, the wall structure 100A of the present disclosure has a structure in which the reinforcing members 10 and 10A extend in the same direction as the extension direction of a pair of frames 3a, and sandwich at least a part of the pair of frames 3a in a direction perpendicular to the extension direction. With this configuration, since the frame 3a that is not held by the rail 2 is sandwiched by at least two members, the reinforcing member 10A is firmly fixed to the frame 3a with the first member 11 and the second member 12 sandwiching the frame 3a, even without performing, for example, drilling holes in the frame 3a. Therefore, a sufficient second moment of area can be secured for the frame 3a, and even when aiming for high load-bearing capacity of the frame 3a of a panel 3 installed on a high floor where wind loads may increase, it is possible to suppress the amount of deflection exceeding the IEC evaluation standard without changing the type of panel. For example, if aluminum alloy extruded rectangular tubes (such as A6063-T5) are used for the frame 3a, the deformation can be reduced to, for example, 1 / 150 or less by using the reinforcing members 10 and 10A. This prevents the panel 3 from coming off the rail 2. Also, while the nominal load-bearing capacity required for the frame 3a is, for example, 4800 Pa (N / m2), the actual load-bearing capacity in load-bearing tests may be 3000 Pa. Even when the nominal load-bearing capacity of the frame 3a is lower than the actual required load-bearing capacity (wind pressure resistance, etc.), the load-bearing capacity of the frame 3a can be improved by providing the reinforcing members 10 and 10A of this disclosure, thereby meeting the required load-bearing capacity.

[0090] Furthermore, even if the building deforms due to external forces such as earthquakes or strong winds, and external forces due to inter-story displacement act on the panels 3, distortion of the solar modules can be suppressed, thereby extending the lifespan of the solar modules.

[0091] The following additional information is disclosed regarding the above embodiment. (Note 1) Multiple rails extending across multiple vertically arranged wall panels and spaced apart horizontally, A panel located on the opposite side of the multiple rails from the wall material side, and provided across at least two horizontally adjacent rails among the multiple rails, Multiple fixing members for fixing the panel to the two adjacent rails, Equipped with, Each of the multiple rails is rotatably mounted at one end to a first wall material among the multiple wall materials, and at the other end is pivotably mounted on one or more second wall materials, excluding the first wall material, with the one end as the pivot point. The panel is a wall structure in which the interface with the plurality of fixing members is slidably held by the plurality of fixing members. (Note 2) The aforementioned rail is A first hole wall that forms a hole into which a first fixing member is inserted, which rotatably supports one end of the first wall material, A second fixing member is inserted into the second wall material, which rotatably supports the other end of the rail, and the second hole wall forms a hole extending in the direction of extension of the rail, The wall structure described in Appendix 1. (Note 3) The wall structure described in Appendix 2, wherein the vertical width of the second hole wall is wider than the horizontal width of the first hole wall. (Note 4) The first hole wall is formed as a first piece material with one end connected to the first wall material, The wall structure described in Appendix 3, wherein the second hole wall is formed on one or more second piece members that connect the other end to the second wall material. (Note 5) The wall structure described in Appendix 4, wherein the multiple second pieces are arranged vertically apart from each other. (Note 6) The aforementioned panel is a wall structure as described in Appendix 1, including a glass plate. (Note 7) The aforementioned panel is a wall structure as described in Appendix 1, including a solar panel. (Note 8) The aforementioned wall material is a wall structure as described in Appendix 1, including a cement board. (Note 9) The wall structure described in Appendix 2, wherein when the interlayer displacement angle of the multiple wall materials is 1 / 50 rad and the maximum displacement between panels is 48 mm, the vertical width of the second hole wall is 10.5 mm. (Note 10) The fixing member provided between two horizontally adjacent panels is The wall structure according to Appendix 1, comprising a structure that absorbs the movement of the panel by bending when the panel moves in the horizontal direction, and a rib that allows such bending within the elastic deformation range of the fixing member. (Note 11) It has an elastic member provided between the horizontally adjacent panels and the fixing member, The wall structure as described in Appendix 1, wherein the elastic member is in contact with the fixing member and the panel when no interlayer displacement occurs in the multiple wall materials. (Note 12) The fixing member has a plurality of segmented fixing parts that are arranged apart horizontally and are pivotably fixed to a plurality of rails, The wall structure as described in Appendix 1, wherein the horizontal gap from each of the horizontal end faces of the multiple divided fixing parts to the panel is set to a dimension that allows movement of the panel. (Note 13) Cables routed between two vertically adjacent panels are routed with at least enough excess length to account for thermal shrinkage, and this excess length is derived using the following formula: Excess length = Height of finishing material × 80°C (effective temperature difference) × 17.7 × 10^-6 / °C (linear expansion coefficient of the cable) The wall structure described in Appendix 1. (Note 14) The cables routed between the 20 panels arranged vertically and the multiple wall materials are routed with at least enough length to accommodate the movement of the wall materials or panels due to inter-story displacement, and to account for thermal shrinkage. The wall structure described in Appendix 1. (Note 15) Surrounding the aforementioned panel, the wall material is formed in a rectangular frame shape when viewed from the front, and consists of two sets of frames facing each other, A reinforcing member for one of the two sets of frames that is not supported by the rail, Equipped with, The wall structure according to Appendix 1, wherein the reinforcing member extends in the same direction as the extension direction of a pair of frames and has a structure that sandwiches at least a part of the pair of frames in a direction perpendicular to the extension direction. (Note 16) The reinforcing member is A first member extending in the same direction as the extension direction of a pair of frames, A second member that sandwiches a part of the frame together with the first member, A first fastening member that fastens the first member and the second member together, The wall structure described in Appendix 15, including the wall structure described in Appendix 15. (Note 17) The first member is, A hollow pipe is located between a pair of frames and the wall material, extends in the same direction as the extension direction of the pair of frames, and is in contact with the pair of frames. A plate extends from the pipe toward the front side of the panel, with its tip supporting the front of a pair of frames, Includes, The first fastening member is a wall structure as described in Appendix 16, which fastens the pipe and the second member together. (Note 18) The wall structure according to Appendix 17, further comprising a gap-filling member for filling the gap between the pipe and the frame, in a set of frames. (Note 19) The wall structure according to Appendix 18, wherein the gap-filling member includes a second fastening member extending from the pipe toward the frame, and a plate-shaped member positioned between the tip of the second fastening member and the frame, which pushes the pipe in the direction of the second fastening member's insertion.

[0092] The wall structure relating to this disclosure has been described above, but this disclosure is not limited to the embodiments described above. Various changes, modifications, substitutions, additions, deletions, and combinations are possible within the scope described in the claims. These also naturally fall within the technical scope of this disclosure. [Explanation of Symbols]

[0093] 1 Wall material 1-1 First wall material 1-2 Second wall material 2 rails 2a one end 2b Other end 3 Panels 3a, 3b frames 3a1 1st page 3a2 2nd side 4 Fixing members 4a Rib 4b Elastic member 4A split fixed part 4B Split fixed part 5 Long members 6 Through hole 7. Negative terminal 8 Positive terminal 9 terminals 10, 10A Reinforcement member 11. First Member 11a pipe 11a1 Through hole 11b plate 11b1 Tip 12 Second Member 12_1 1st page 12_2 2nd page 12_1a Screw hole 13. First fastening member 13a bolt 13a1 Head 13a2 Threaded part 13b Washer 13c nut 20 Gap-filling member 20a Second fastening member 20b Plate-shaped member 21 1st hole wall 22 2nd hole wall 30 Fastening members 41 Bottom part 41a long hole 42 Side wall section 42a area 43 Holding part 100, 100A Wall structure 201 First Piece Material 202 Second piece material 211 First fixing member 221 Second fixing member

Claims

1. Multiple rails extending across multiple vertically arranged wall panels and spaced apart horizontally, A panel located on the opposite side of the multiple rails from the wall material side, and provided across at least two horizontally adjacent rails among the multiple rails, Multiple fixing members for fixing the panel to the two adjacent rails, Equipped with, Each of the multiple rails is rotatably mounted at one end to a first wall material among the multiple wall materials, and at the other end is pivotably mounted on one or more second wall materials, excluding the first wall material, with the one end as the pivot point. The panel is a wall structure in which the interface with the plurality of fixing members is slidably held by the plurality of fixing members.

2. The aforementioned rail is A first hole wall that forms a hole into which a first fixing member is inserted, which rotatably supports one end of the first wall material, A second fixing member is inserted into the second wall material, which rotatably supports the other end of the rail, and the second hole wall includes a hole that extends in the direction of extension of the rail, The wall structure according to claim 1.

3. The wall structure according to claim 2, wherein the vertical width of the second hole wall is wider than the horizontal width of the first hole wall.

4. The first hole wall is formed as a first piece material that connects one end to the first wall material, The wall structure according to claim 3, wherein the second perforated wall is formed on one or more second piece materials that connect the other end to the second wall material.

5. The wall structure according to claim 4, wherein the plurality of the second pieces are arranged vertically apart from each other.

6. The wall structure according to claim 1, wherein the panel includes a glass plate.

7. The wall structure according to claim 1, wherein the panel includes a solar panel.

8. The wall structure according to claim 1, wherein the wall material includes a cement board.

9. The wall structure according to claim 2, wherein when the interlayer displacement angle of the multiple wall materials is 1 / 50 rad and the maximum displacement between panels is 48 mm, the vertical width of the second hole wall is 10.5 mm.

10. The fixing member provided between two horizontally adjacent panels is The wall structure according to claim 1, comprising a structure that absorbs the movement of the panel by bending when the panel moves in the horizontal direction, and a rib that allows the bending within the elastic deformation range of the fixing member.

11. It has an elastic member provided between the horizontally adjacent panels and the fixing member, The wall structure according to claim 1, wherein when no interlayer displacement occurs in the multiple wall materials, the elastic member is in contact with the fixing member and also in contact with the panel.

12. The fixing member has a plurality of segmented fixing parts that are arranged apart horizontally and are pivotably fixed to a plurality of rails, The wall structure according to claim 1, wherein the horizontal gap from each of the horizontal end faces of the multiple divided fixing parts to the panel is set to a dimension that allows movement of the panel.

13. Cables routed between two vertically adjacent panels are routed with at least enough excess length to account for thermal shrinkage, and this excess length is derived by the following formula: Excess length = Height of finishing material × 80°C (effective temperature difference) × 17.7 × 10⁻⁶ / °C (linear expansion coefficient of the cable) The wall structure according to claim 1.

14. The cables routed between the 20 panels arranged vertically and the multiple wall materials are routed with at least enough length to accommodate the movement of the wall materials or panels due to inter-layer displacement, and to account for thermal shrinkage. The wall structure according to claim 1.

15. Surrounding the aforementioned panel, the wall material is formed in a rectangular frame shape when viewed from the front, and consists of two sets of frames facing each other, A reinforcing member for one of the two sets of frames that is not supported by the rail, Equipped with, The wall structure according to claim 1, wherein the reinforcing member extends in the same direction as the extension direction of a pair of frames and has a structure that sandwiches at least a part of the pair of frames in a direction perpendicular to the extension direction.

16. The reinforcing member is A first member extending in the same direction as the extension direction of a pair of frames, A second member sandwiches a part of the frame together with the first member, A first fastening member that fastens the first member and the second member together, The wall structure according to claim 15, including the following:

17. The first member is, A hollow pipe is located between a pair of frames and the wall material, extends in the same direction as the extension direction of the pair of frames, and is in contact with the pair of frames. A plate extends from the pipe toward the front side of the panel, with its tip supporting the front of a pair of frames, Includes, The wall structure according to claim 16, wherein the first fastening member fastens the pipe and the second member together.

18. The wall structure according to claim 17, further comprising a gap-filling member for filling the gap between the pipe and the frame in a set of frames.

19. The wall structure according to claim 18, wherein the gap-filling member includes a second fastening member extending from the pipe toward the frame, and a plate-shaped member positioned between the tip of the second fastening member and the frame, which pushes the pipe in the direction of pushing the second fastening member.

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