JP2023181872A - Earthquake-resistant wall - Google Patents

Abstract

To suppress the peripheral part of a horizontally long hole of a corrugated steel sheet from being broken with shear deformation of the corrugated steel sheet.SOLUTION: An earthquake-resistant wall 20 includes: a corrugated steel plate 30 attached to a frame 10; a wood face member 80Y opposed to the corrugated steel plate 30; a joint bolt 62 inserted into a round hole 60 formed in the center of the corrugated steel plate 30 in the vertical direction to join the corrugated steel plate 30 and the wood face member 80Y; a plurality of connecting bolts 52 which is inserted into horizontal long holes 50 formed at an upper part and a lower part of the corrugated steel plate 30 to connect the corrugated steel plate 30 and the wood surface material 80Y so as to be relatively movable in the horizontal width direction of the corrugated steel plate 30.SELECTED DRAWING: Figure 4

Description

The present invention relates to earthquake-resistant walls.

A seismic wall is known that includes a corrugated steel plate that is attached to a frame, and a finishing material that is placed opposite the corrugated steel plate and bolted to the corrugated steel plate (for example, see Patent Document 1).

In the earthquake-resistant wall disclosed in Patent Document 1, bolts are inserted into horizontally elongated holes formed in a corrugated steel plate. This prevents the finishing material from following the shear deformation of the corrugated steel plate during an earthquake and causing damage.

Japanese Patent Application Publication No. 2009-249917

By the way, when a horizontally elongated hole is formed in a corrugated steel plate, the peripheral portion of the horizontally long hole in the corrugated steel plate may be damaged due to shear deformation of the corrugated steel plate.

The present invention has been made in consideration of the above facts, and an object of the present invention is to suppress damage to the peripheral portion of a horizontally long hole in a corrugated steel plate due to shear deformation of the corrugated steel plate.

The seismic wall according to claim 1 includes a corrugated steel plate attached to a frame, a stiffening face material facing the corrugated steel plate, and a round hole formed in the vertical center of the corrugated steel plate, and the A central joining member that joins the corrugated steel plate and the stiffening surface material is inserted into horizontally elongated holes formed in the upper and lower parts of the corrugated steel plate, respectively, and connects the corrugated steel plate and the stiffening surface material to the corrugated steel plate. A plurality of connecting members are connected so as to be relatively movable in the width direction.

According to the seismic wall according to the first aspect, a corrugated steel plate is attached to the frame. A stiffening face material is opposed to this corrugated steel plate. Further, a round hole is formed in the vertical center of the corrugated steel plate. The corrugated steel plate and the stiffening surface material are joined by the central joining member inserted into the round hole.

Furthermore, horizontally elongated holes are formed in the upper and lower parts of the corrugated steel plate, respectively. The corrugated steel plate and the stiffening surface material are connected to each other so as to be relatively movable in the width direction of the corrugated steel plate by a plurality of connecting members respectively inserted into these horizontally elongated holes. This stiffening surface material restricts deformation of the corrugated steel plate in an out-of-plane direction, thereby suppressing buckling of the corrugated steel plate during an earthquake.

Here, when the corrugated steel plate undergoes shear deformation during an earthquake, the connecting member moves along the horizontally elongated holes formed in the upper and lower parts of the corrugated steel plate, respectively. This suppresses interference between the connecting member and the peripheral portion of the horizontally elongated hole, thereby suppressing damage to the stiffening surface material.

On the other hand, the central joining member is inserted into a round hole formed in the vertical center of the corrugated steel plate. As a result, when the vertical center portion of the corrugated steel plate moves in the width direction due to shear deformation of the corrugated steel plate, the stiffening face member moves in the width direction of the corrugated steel plate together with the central joining member.

As a result, the amount of relative movement in the width direction between the upper and lower parts of the corrugated steel plate and the stiffening surface material becomes smaller, so the required lengths of the horizontally elongated holes formed in the upper and lower parts of the corrugated steel plate can be shortened.

A second aspect of the present invention provides a seismic wall according to the first aspect, including a reinforcing member provided around the horizontally long hole in the corrugated steel plate.

According to the seismic wall according to the second aspect, a reinforcing member is provided around the horizontally long hole in the corrugated steel plate. This suppresses damage to the peripheral portion of the horizontally long hole of the corrugated steel sheet due to shear deformation of the corrugated steel sheet.

The earthquake-resistant wall according to claim 3 is the earthquake-resistant wall according to claim 1 or 2, in which the stiffening surface material is a wooden surface material.

According to the earthquake-resistant wall according to claim 3, the stiffening surface material is a wooden surface material. By covering the surface of the corrugated steel plate with this wood facing material, the design of the earthquake-resistant wall is improved.

As explained above, according to the present invention, it is possible to suppress damage to the peripheral portion of the horizontally long hole of the corrugated steel plate due to shear deformation of the corrugated steel plate.

FIG. 2 is an elevational view showing a frame provided with earthquake-resistant walls according to one embodiment. 2 is a sectional view taken along line 2-2 in FIG. 1. FIG. FIG. 2 is an elevational view showing a state in which a pair of wooden panels have been removed from the earthquake-resistant wall shown in FIG. 1; 3 is a partially enlarged sectional view of FIG. 2. FIG. FIG. 5 is a split cross-sectional view of the corrugated steel plate and a pair of wood facings shown in FIG. 4. FIG. FIG. 4 is a partially enlarged elevational view of FIG. 3; (A) is a schematic diagram showing a shear deformation state of a seismic wall according to the present embodiment, and (B) is a schematic diagram showing a shear deformation state of a seismic wall according to a comparative example. FIG. 5 is a sectional view corresponding to FIG. 4 showing a modification of the earthquake-resistant wall according to one embodiment.

Hereinafter, a seismic wall according to an embodiment will be described with reference to the drawings.

FIG. 1 shows a seismic wall 20 according to this embodiment. The earthquake-resistant wall 20 includes a corrugated steel plate 30 and a pair of wooden facings 80X and 80Y. The corrugated steel plate 30 is attached to the frame 10.

Note that the arrow H shown in each figure indicates the vertical direction (height direction) of the earthquake-resistant wall 20, and the arrow W indicates the width direction of the earthquake-resistant wall 20. Further, arrow T indicates an out-of-plane direction of the earthquake-resistant wall 20 (corrugated steel plate 30).

(frame)
The frame 10 is a rigid frame structure having a pair of columns 12 and upper and lower beams 14 installed on the pair of columns 12. The pair of pillars 12 are steel frame pillars formed from square steel pipes, and are erected at intervals. The upper and lower beams 14 are steel beams made of H-beams, and are installed on the pair of pillars 12 with an interval in the vertical direction.

Note that the pair of columns 12 and the upper and lower beams 14 are not limited to steel-frame structures, and may be constructed of reinforced concrete, steel-framed reinforced concrete, or the like.

(corrugated steel plate)
As shown in FIG. 2, the cross-sectional (longitudinal) shape of the corrugated steel plate 30 is a wave-like shape. Further, as shown in FIG. 3, the corrugated steel plate 30 is placed within the frame 10 with its creases lying horizontally. A pair of vertical flanges 32 and a pair of horizontal flanges 34 are provided on the outer periphery of the corrugated steel plate 30. The pair of vertical flanges 32 and the pair of horizontal flanges 34 are joined in a frame shape and surround the corrugated steel plate 30.

The pair of vertical flanges 32 are provided along the left and right ends of the corrugated steel plate 30, and are joined to the ends by welding or the like. The pair of vertical flanges 32 are respectively joined to the pair of columns 12 by welding, bolts (not shown), or the like.

The pair of horizontal flanges 34 are provided along the upper and lower ends of the corrugated steel plate 30, and are joined to the ends by welding or the like. A joining plate 36 is provided on each of the pair of horizontal flanges 34. The joint plate 36 is joined to a joint plate 38 provided on the upper and lower beams 14 by bolts, welding, or the like.

(Wood facing material)
As shown in FIG. 2, the pair of wooden face members 80X and 80Y are arranged on both sides of the corrugated steel plate 30 in the out-of-plane direction (direction of arrow T). Further, the pair of wooden planks 80X and 80Y are placed on the lower horizontal flange 34 of the corrugated steel plate 30 with the spacer 16 interposed therebetween. Note that the spacer 16 may be provided as necessary and can be omitted as appropriate.

The pair of wooden planks 80X and 80Y are made of CLT (Cross Laminated Timber) and face each other with the corrugated steel plate 30 in between. Each of the wooden face materials 80X, 80Y is formed in a rectangular shape when viewed from the out-of-plane direction, and is slightly smaller in size than the corrugated steel plate 30. Note that the size of the corrugated steel plate 30 can be changed as appropriate.

Note that the pair of wooden face materials 80X and 80Y are not limited to CLT, and may be formed of, for example, LVL (Laminated Veneer Lumber), laminated wood, plywood, or the like. Moreover, the wooden facing materials 80X and 80Y are examples of stiffening facing materials.

As shown in FIG. 4, the pair of wooden face members 80X and 80Y are stacked on both sides of the corrugated steel plate 30 and connected by a plurality of connecting bolts 52. The upper portions of the pair of wooden planks 80X, 80Y and the upper portion of the corrugated steel plate 30 are connected to be movable relative to each other in the width direction of the corrugated steel plate 30. Further, the lower portions of the pair of wooden planks 80X and 80Y and the lower portion of the corrugated steel plate 30 are connected to be movable relative to each other in the width direction of the corrugated steel plate 30.

In addition, the upper part of the corrugated steel plate 30 means the part above the vertical center part (central valley part 42M) of the corrugated steel plate 30 mentioned later, and the lower part of the corrugated steel plate 30 means the part above the said central part (central valley part 42M). ) means the lower part.

Moreover, the connection structure between the upper parts of the corrugated steel plate 30 and the pair of wooden facing materials 80X, 80Y is the same as the connecting structure between the lower parts of the corrugated steel plate 30 and the pair of wooden facing materials 80X, 80Y. Therefore, below, the connection structure between the upper parts of the corrugated steel plate 30 and the pair of wooden facing materials 80X, 80Y will be explained, and the explanation about the connecting structure between the lower parts of the corrugated steel plate 30 and the pair of wooden facing materials 80X, 80Y will be omitted. .

As shown in FIG. 4, the corrugated steel plate 30 has a corrugated shape in which a plurality of peaks 40 and valleys 42 alternately repeat in a longitudinal cross-sectional view. The plurality of mountain portions 40 have a top surface portion 40A that extends in the vertical direction. The inner surface 80S of one of the wooden face materials 80X is superimposed on these top surface portions 40A.

The plurality of troughs 42 have bottom portions 42A that extend in the vertical direction. The inner surface 80S of the other wooden surface material 80Y is superimposed on these bottom surface portions 42A. Further, the adjacent top surface portion 40A and bottom surface portion 42A are connected via the slope portion 44. The slope portion 44 is inclined with respect to the top surface portion 40A and the bottom surface portion 42A. Note that the adjacent peak portions 40 and valley portions 42 share a slope portion 44.

The upper parts of the corrugated steel plate 30 and one of the wooden face members 80X are connected to each other as follows. As shown in FIGS. 3 and 6, in the upper part of the corrugated steel plate 30, two horizontally elongated holes 50 are formed in the top surface portion 40A of each mountain portion 40. The two horizontally elongated holes 50 are arranged at intervals in the width direction of the corrugated steel plate 30. Each horizontally elongated hole 50 is a through hole that penetrates the top surface portion 40A in the thickness direction.

Note that the number and arrangement of the horizontally elongated holes 50 can be changed as appropriate.

The horizontally long hole 50 is a long hole (slot hole) extending in the width direction of the corrugated steel plate 30. Further, a reinforcing plate 70 is provided around the horizontally elongated hole 50. The reinforcing plate 70 is formed of a steel plate or the like, and is attached to the back surface of the top surface portion 40A (the surface opposite to the wooden surface material 80X).

A horizontally elongated hole 72 is formed in the reinforcing plate 70. The horizontally long hole 72 has the same shape and size as the horizontally long hole 50. This reinforcing plate 70 is superimposed on the back surface of the top surface portion 40A of the mountain portion 40 and joined by welding or the like so that the horizontally long hole 72 and the horizontally long hole 50 are aligned.

As shown in FIGS. 4 and 5, connecting bolts 52 are inserted into the horizontally elongated holes 50 and 72 of the top surface portion 40A and the reinforcing plate 70 from the other wooden panel 80Y side via washers 54, respectively. As shown in FIG. 6, the connecting bolt 52 is movable in the width direction of the corrugated steel plate 30 along the horizontally long holes 50, 72.

Note that the connecting bolt 52 is an example of a connecting member.

As shown in FIGS. 4 and 5, the connecting bolts 52 inserted into the horizontally elongated holes 50, 72 of the top surface portion 40A and the reinforcing plate 70 are connected to the lag screw bolts 82 provided at the top of one of the wooden facings 80X. It is screwed into one end. The lag screw bolt 82 is screwed into a prepared hole (not shown) formed in the inner surface 80S of one of the wooden face members 80X.

The lag screw bolt 82 is screwed into the wooden panel 80X so that one end thereof does not protrude from the inner surface 80S of the wooden panel 80X. Further, a bolt hole (not shown) is formed at one end of the lag screw bolt 82. A connecting bolt 52 is screwed into this bolt hole through a horizontally long hole 50 formed in the top surface portion 40A of the mountain portion 40.

As a result, with the inner surface 80S of one wooden facing 80X superimposed on (in contact with) the surface of the top surface 40A of the mountain part 40, the upper parts of one of the wooden facing 80X and the corrugated steel plate 30, The corrugated steel plate 30 is connected so as to be relatively movable in the width direction.

Note that the reinforcing plate 70 may be attached not only to the back surface of the top surface portion 40A of the mountain portion 40 but also to the surface of the top surface portion 40A of the mountain portion 40. In this case, the inner surface 80S of one of the wooden face materials 80X is superimposed on the surface of the top surface portion 40A of the mountain portion 40 via the reinforcing plate 70. Further, the reinforcing plate 70 may be provided as necessary, and may be omitted as appropriate.

Next, the upper parts of the other wooden panel 80Y and the corrugated steel plate 30 are connected as follows. As shown in FIGS. 3 and 6, in the upper part of the corrugated steel plate 30, two horizontally elongated holes 50 are formed in the bottom surface part 42A of each valley part 42. Note that the number and arrangement of the horizontally elongated holes 50 can be changed as appropriate.

Further, a reinforcing plate 70 is provided around the horizontally elongated hole 50. The reinforcing plate 70 is joined by welding or the like while overlapping the back surface of the bottom surface portion 42A of the valley portion 42 (the surface opposite to the wooden surface material 80Y) so that the horizontally long hole 72 and the horizontally long hole 50 are aligned. There is.

As shown in FIGS. 4 and 5, connecting bolts 52 are inserted into the horizontally elongated holes 50 and 72 of the bottom surface portion 42A and the reinforcing plate 70 from the one wooden panel 80X side, respectively. As shown in FIG. 6, the connecting bolt 52 is movable in the width direction of the corrugated steel plate 30 along the horizontally elongated holes 50 and 72.

In addition, in one of the wooden face materials 80X, working holes 84 are formed in the portions of the valley portions 42 facing the horizontally elongated holes 50, respectively. From these working holes 84, the connecting bolts 52 can be inserted into the horizontally elongated holes 50 of the bottom portion 42A. Further, the working hole 84 is closed with a wooden plug 86, for example. Note that the wooden stopper 86 can be omitted. Further, the working hole 84 is not limited to a circular shape, and may be a horizontally elongated hole.

As shown in FIGS. 4 and 5, the connecting bolts 52 inserted into the horizontal holes 50, 72 of the bottom portion 42A and the reinforcing plate 70 are connected to the lag screw bolts 82 provided at the top of the other wooden panel 80Y. It is screwed into one end. As a result, while the inner surface 80S of the other wooden panel 80Y is superimposed on (in contact with) the surface of the bottom surface 42A of the trough 42, the tops of the other wooden panel 80Y and the corrugated steel plate 30 are aligned. The corrugated steel plate 30 is connected so as to be relatively movable in the width direction.

Note that the reinforcing plate 70 may be attached not only to the back surface of the bottom surface portion 42A of the valley portion 42 but also to the surface of the bottom surface portion 42A of the valley portion 42. In this case, the inner surface 80S of the other wooden panel 80Y is superimposed on the surface of the bottom section 42A of the valley section 42 via the reinforcing plate 70. In this case, a spacer having the same thickness as the reinforcing plate 70 may also be provided on the surface of the bottom portion 42A of the central valley portion 42M, which will be described later. Further, the reinforcing plate 70 may be provided as necessary, and may be omitted as appropriate.

Here, the vertical center portion of the corrugated steel plate 30 and the vertical center portion of the other wooden face material 80Y are joined (fixed) by a plurality of joining bolts 62. Specifically, as shown in FIGS. 3 and 6, there are two grooves on the bottom surface 42A of the valley (hereinafter referred to as "central valley 42M") located at the center of the corrugated steel plate 30 in the vertical direction. A round hole 60 is formed. The two round holes 60 are arranged at intervals in the width direction of the corrugated steel plate 30.

Note that the vertical center portion of the corrugated steel sheet 30 means, for example, the central portion when the corrugated steel sheet 30 is divided into five equal parts in the vertical direction. The center portion of the corrugated steel plate 30 in the vertical direction may be the peak portion 40 or the valley portion 42M. Further, the number and arrangement of the round holes 60 can be changed as appropriate.

Each round hole 60 is a circular through hole that penetrates the bottom surface portion 42A of the central valley portion 42M in the thickness direction. Further, each round hole 60 is located at the center of the corrugated steel plate 30 in the vertical direction. As shown in FIGS. 4 and 5, a joining bolt 62 is inserted into the round hole 60 from one side of the wooden panel 80X with a washer 64 interposed therebetween. Note that the joining bolt 62 is an example of a central joining member.

The joining bolt 62 inserted into the round hole 60 is screwed into one end side of a lag screw bolt 82 provided in the vertical center of the other wooden panel 80Y. As a result, the inner surface 80S of the other wooden panel 80Y is overlapped (in contact) with the bottom surface 42A of the central trough 42M, and the center portion of the other wooden panel 80Y and the corrugated steel plate 30 in the vertical direction They are joined (fixed) together.

In addition, in one of the wooden face materials 80X, working holes 84 are formed in the central valley portion 42M at the portions facing the round holes 60, respectively. From these working holes 84, the joining bolts 62 can be inserted into the round holes 60 of the central valley portion 42M.

(effect)
Next, the operation of this embodiment will be explained.

As shown in FIG. 2, according to this embodiment, a corrugated steel plate 30 is attached to the frame 10. A pair of wooden face members 80X and 80Y are arranged on both sides of the corrugated steel plate 30 in the out-of-plane direction. A pair of wooden face materials 80X and 80Y are arranged to face the corrugated steel plate 30.

As shown in FIG. 4, a round hole 60 is formed in the center of the corrugated steel plate 30 in the vertical direction. Specifically, a round hole 60 is formed in the bottom portion 42A of the central valley portion 42M located at the center of the corrugated steel plate 30. A joining bolt 62 inserted into the round hole 60 joins (fixes) the central portions of the corrugated steel plate 30 and the other wooden face material 80Y.

Furthermore, a plurality of horizontally elongated holes 50 are formed in the upper part of the corrugated steel plate 30. Specifically, in the upper part of the corrugated steel plate 30, horizontally elongated holes 50 are formed in the top surface portion 40A of the peak portion 40 and the bottom surface portion 42A of the valley portion 42, respectively. By screwing the connecting bolts 52 inserted into these horizontal holes 50 into the lag screw bolts 82 provided on the pair of wooden facings 80X, 80Y, the upper parts of the corrugated steel plate 30 and the pair of wooden facings 80X, 80Y The corrugated steel plates 30 are connected to each other so as to be relatively movable in the width direction of the corrugated steel plate 30.

Similarly, a plurality of horizontally elongated holes 50 are formed in the lower part of the corrugated steel plate 30. Specifically, in the lower part of the corrugated steel plate 30, horizontally elongated holes 50 are formed in the top surface portion 40A of the peak portion 40 and the bottom surface portion 42A of the valley portion 42, respectively. By screwing the connecting bolts 52 inserted into these horizontally elongated holes 50 into the lag screw bolts 82 provided in the pair of wooden facings 80X, 80Y, the corrugated steel plate 30 and the lower part of the pair of wooden facings 80X, 80Y are connected. The corrugated steel plates 30 are connected to each other so as to be relatively movable in the width direction of the corrugated steel plate 30.

By attaching the pair of wooden planks 80X and 80Y to the corrugated steel plate 30 in this way, deformation of the corrugated steel plate 30 in the out-of-plane direction is restricted. Therefore, buckling of the corrugated steel plate 30 during an earthquake is suppressed.

Furthermore, when the corrugated steel plate 30 undergoes shear deformation during an earthquake, the connecting bolt 52 moves along the horizontally elongated holes 50 formed in the upper and lower parts of the corrugated steel plate 30, respectively. This suppresses interference between the connecting bolt 52 and the peripheral portion of the horizontally elongated hole 50, thereby suppressing damage to the pair of wooden face members 80X and 80Y.

Here, FIG. 7(B) shows a seismic wall 100 according to a comparative example. In the earthquake-resistant wall 100 according to the comparative example, the central portions of the corrugated steel plate 30 and the other wooden facing material 80Y are not joined to each other. In this case, the other wooden panel 80Y does not follow the shear deformation of the corrugated steel plate 30, and the relative movement D1 between the upper parts of the corrugated steel plate 30 and the other wooden panel 80Y increases. Therefore, the required length of the horizontally elongated hole 50 (see FIG. 6) formed in the upper part of the corrugated steel plate 30 becomes longer, and the shear strength of the corrugated steel plate 30 decreases.

On the other hand, in this embodiment, the center portions of the corrugated steel plate 30 and the other wooden face material 80Y are joined by the joining bolt 62. As a result, as shown in FIG. 7A, when the center portion of the corrugated steel plate 30 moves in the width direction due to shear deformation of the corrugated steel plate 30, as shown by the two-dot chain line, the center part of the corrugated steel plate 30 moves together with the joining bolt 62. The other wooden face material 80Y moves in the width direction of the corrugated steel plate 30.

As a result, the relative movement amount D2 in the width direction between the upper parts of the corrugated steel plate 30 and the other wooden panel 80Y becomes small (D2<D1), so the horizontally elongated hole 50 formed in the upper part of the corrugated steel plate 30 (see FIG. 6) The required length can be shortened. Similarly, since the relative movement amount D2 in the width direction between the lower parts of the corrugated steel plate 30 and the other wooden panel 80Y becomes small (D2<D1), the horizontally elongated hole 50 formed in the upper part of the corrugated steel plate 30 (see FIG. (see) can be shortened.

Therefore, it is possible to suppress a decrease in shear strength of the corrugated steel sheet 30 due to shear deformation of the corrugated steel sheet 30.

Further, a reinforcing plate 70 is provided around the horizontally elongated hole 50 of the corrugated steel plate 30. This suppresses damage to the peripheral portion of the horizontally long hole 50 of the corrugated steel sheet 30 due to shear deformation of the corrugated steel sheet 30.

Furthermore, by covering the surfaces on both sides of the corrugated steel plate 30 with the pair of wooden facing materials 80X and 80Y, the design of the earthquake-resistant wall 20 is improved.

(Modified example)
Next, a modification of the above embodiment will be described.

In the embodiment described above, the vertical center portions of the corrugated steel plate 30 and the other wooden panel 80Y are joined (fixed) by the joining bolt 62. However, not only the vertical centers of the corrugated steel plate 30 and the other wooden panel 80Y but also the vertical centers of the corrugated steel plate 30 and the pair of wooden panels 80X and 80Y are joined (fixed) together. good.

Further, in the above embodiment, a pair of wooden face members 80X and 80Y are attached to the corrugated steel plate 30. However, for example, as in the modification shown in FIG. 8, the wooden face material 80Y may be attached only to one side of the corrugated steel plate 30. In this case, for example, a stiffening member 90 may be attached to the opposite side of the corrugated steel plate 30 from the wooden face material 80Y.

The stiffening member 90 is made of, for example, L-shaped steel. Further, the stiffening member 90 is disposed along the vertical direction, and is joined by welding or bolts (not shown) or the like while abutting against the surface of the corrugated steel plate 30. This stiffening member 90 can also suppress buckling of the corrugated steel plate 30. Note that the stiffening member 90 can be omitted as appropriate.

Further, in the embodiment described above, the connecting member is the connecting bolt 52. However, the connecting member is not limited to the connecting bolt 52, and may be, for example, a stud bolt, a nut, a screw, or the like.

Similarly, in the embodiment described above, the central joining member is the joining bolt 62. However, the central joint member is not limited to the joint bolt 62, and may be, for example, a stud bolt, a nut, a screw, or the like.

Further, in the above embodiment, the pair of wooden face members 80X and 80Y are provided with lag screw bolts 82 into which the joining bolts 62 or the connecting bolts 52 are screwed. However, the configuration of the joint or connecting portion of the pair of wooden facings 80X, 80Y is not limited to the lag screw bolt 82, and can be changed as appropriate depending on the configuration of the central joint member and the connecting member.

Further, in the above embodiment, the stiffening surface materials are wooden surface materials 80X and 80Y. However, the stiffening surface material is not limited to the wooden surface materials 80X and 80Y, and may be, for example, a fireproof board (fireproof surface material). Further, examples of the stiffening surface material include a concrete board, a steel fiber reinforced concrete (SFRC) board, a glass fiber reinforced concrete (GRC) board, a gypsum board, and an ALC panel.

Although one embodiment of the present invention has been described above, the present invention is not limited to such an embodiment, and the embodiment and various modifications may be used in combination as appropriate, and the gist of the present invention may be It goes without saying that the invention can be implemented in various ways without departing from the scope.

10 Frame 20 Earthquake-resistant wall 30 Corrugated steel plate 50 Horizontal long hole 52 Connection bolt (connection member)
60 Round hole 62 Joint bolt (center joint member)
70 Reinforcement plate (reinforcement member)
80X Wooden facing material (stiffening facing material)
80Y Wooden facing material (stiffening facing material)

Claims (3)

A corrugated steel plate attached to the frame,
a stiffening surface material facing the corrugated steel plate;
a central joining member that is inserted into a round hole formed in the vertical center of the corrugated steel plate and joins the corrugated steel plate and the stiffening surface material;
a plurality of connecting members that are inserted into horizontally elongated holes formed in the upper and lower parts of the corrugated steel plate, respectively, and connect the corrugated steel plate and the stiffening surface material so as to be relatively movable in the width direction of the corrugated steel plate;
Shear walls equipped with comprising a reinforcing member provided around the horizontally elongated hole in the corrugated steel plate;
The shear wall according to claim 1. The stiffening surface material is a wooden surface material,
The earthquake-resistant wall according to claim 1 or claim 2.