JP7839064B2 - wooden damping wall - Google Patents

Description

Applicable to Article 30, Paragraph 2 of the Patent Law. Publisher: Architectural Institute of Japan, Publication: DVD 2022 Annual Conference (Hokkaido) Academic Lecture Abstracts, Architectural Design Presentation Abstracts, Publication Date: July 20, 2022. Conference Name: 2022 Architectural Institute of Japan Annual Conference (Hokkaido), Organizer: Architectural Institute of Japan, Date: September 7, 2022.

This invention relates to a wooden vibration-damping wall that combines a wooden panel with a viscoelastic damper.

Viscoelastic dampers are being used to improve the vibration control performance of buildings. Viscoelastic dampers provide vibration control against building sway caused by wind and earthquakes.
For example, Patent Document 1 discloses a seismic damper comprising an inner member attached to one part of the framework of a structure and subjected to axial force, an outer member attached to the other part of the framework and subjected to axial force, and a viscoelastic body interposed between the inner member and the outer member.
Furthermore, Patent Document 2 discloses a seismic damper consisting of multiple steel plates and a viscoelastic body bonded between each steel plate, with one end of the steel plates connected to a connecting member on the building frame side.
In configurations like those disclosed in Patent Documents 1 and 2, a viscoelastic damper is provided inside a member used as a brace or the like. Because such a member has a long, slender, linear shape, it is not possible to incorporate a large amount of viscoelastic material inside it, even if one attempts to construct a viscoelastic damper. Therefore, there are limitations to how much vibration damping performance can be improved.

In contrast, Patent Document 3 discloses a configuration in which a wooden panel is installed between the beams of the upper floor of a building and the foundation or beams of the lower floor, and comprises a first damper which is a friction damper, and a second damper which is a viscoelastic damper, a viscous damper, or an oil damper, with the first damper and the second damper connected in series.
In the configuration disclosed in Patent Document 3, a viscoelastic damper is provided in the wall. In such a configuration, since the shape of the object to which the viscoelastic damper is provided is planar rather than linear, it may be possible to increase the amount of viscoelastic material and improve vibration damping performance compared to the configurations in Patent Documents 1 and 2.
However, in configurations using wood panels, as described in Patent Document 3, stress can concentrate between the mounting members, such as bolts, used to attach the wood panel and the wood panel itself, causing the mounting members to sink into the wood panel. When the mounting members sink into the wood panel, the rigidity of the joint decreases. Therefore, even if a viscoelastic damper is provided in combination with the wood panel, the performance of the viscoelastic damper may not be effectively utilized.

Patent No. 4950913 Japanese Patent Publication No. 2016-56605 Japanese Patent Publication No. 2020-165231

The problem that this invention aims to solve is to provide a wooden vibration-damping wall that can suppress the sinking of mounting members into the wooden panel, even while incorporating viscoelastic dampers into the wooden panel.

The inventors of the present invention focused on the fact that, as a wooden vibration-damping wall having a viscoelastic damper, bonding the wooden panel and the viscoelastic damper using a structural adhesive rather than friction bonding with high-strength bolts suppresses the sinking of the wooden panel while distributing the stress acting on the viscoelastic damper over a wide area, leading to the present invention.
To solve the above problems, the present invention employs the following means.
In other words, the wooden vibration-damping wall of the present invention is a wooden vibration-damping wall that combines a wooden panel and a viscoelastic damper, comprising: an upper mounting steel member fixed to an upper beam; a lower mounting steel member fixed to a lower beam or foundation; the wooden panel forming the wall surface; a viscoelastic damper comprising a first steel plate and a second steel plate provided spaced apart from each other; and a viscoelastic body provided between the first steel plate and the second steel plate, wherein the first steel plate is fixed to the front and back surfaces of the wooden panel, the second steel plate is joined to either the upper mounting steel member or the lower mounting steel member, and the other of the upper mounting steel member and the lower mounting steel member is fixed to the front and back surfaces of the wooden panel.
In this configuration, the viscoelastic damper is provided such that the first steel plate constituting the viscoelastic damper is fixed to the front and back surfaces of the wood panel, and the second steel plate is joined to either the upper mounting steel member or the lower mounting steel member. Because the viscoelastic damper is fixed to the wide front and back surfaces of the wood panel, in the joining between the viscoelastic damper and the wood panel, or between the member interposed between the viscoelastic damper and the wood panel and the wood panel, the joining surface is made planar, and the joining area is increased, thereby distributing the stress acting from either the upper mounting steel member or the lower mounting steel member to the wood panel over a wide area.
Furthermore, the other end of the upper and lower mounting steel members is fixed to the front and back surfaces of the wood panel. Because the other end of the upper and lower mounting steel members is fixed to the wide front and back surfaces of the wood panel, in the joint between the other end of the upper and lower mounting steel members and the wood panel, or between the member interposed between the other end of the upper and lower mounting steel members and the wood panel and the wood panel, the joint surface can be made planar while increasing the joint area, thereby distributing the stress acting from the other end of the upper and lower mounting steel members to the wood panel over a wide area.
In this way, by distributing the stress acting on the wood panel over a wide area, localized stress on the wood panel is suppressed, and a configuration can be achieved that suppresses the sinking of the mounting members of the wood panel into the wood panel, even while incorporating a viscoelastic damper into the wood panel.

In one embodiment of the present invention, the wooden vibration-damping wall of the present invention comprises a vertical steel plate provided on either the upper mounting steel member or the lower mounting steel member, with the viscoelastic damper in between, the first steel plate being joined to the vertical steel plate, and the surface of the vertical steel plate and the front and back surfaces of the wooden panel being joined by a structural adhesive.
For example, when joining a component to a wooden panel, if steel fasteners such as bolts or nails are used, stress will concentrate around the area where the bolts or nails are installed in the wooden panel. This could cause the component to sink into the wooden panel.
In contrast, with the above-described configuration, the surface of the vertical steel plate, which is joined to the first steel plate constituting the viscoelastic damper, is firmly bonded to the front and back surfaces of the wood panel by a structural adhesive (for example, a two-component acrylic resin-based structural adhesive). This makes it possible to suppress the indentation of the vertical steel plate into the wood panel compared to when the vertical steel plate is joined to the wood panel using steel fasteners such as bolts or nails.

In one embodiment of the present invention, one of the upper mounting steel member and the lower mounting steel member is provided with a first vertical steel plate portion that extends in a vertical plane toward the wood panel, a viscoelastic damper is provided between the first vertical steel plate portion and the wood panel, the surface of the first vertical steel plate portion and the second steel plate are joined, and the first steel plate is joined to the front and back surfaces of the wood panel with a structural adhesive.
For example, when joining a component to a wooden panel, if steel fasteners such as bolts or nails are used, stress will concentrate around the area where the bolts or nails are installed in the wooden panel. This could cause the component to sink into the wooden panel.
In contrast, with the above-described configuration, the first steel plate of the viscoelastic damper is firmly bonded to the front and back surfaces of the wood panel using a structural adhesive (for example, a two-component acrylic resin-based structural adhesive). This suppresses the indentation of the first steel plate into the wood panel compared to when the first steel plate is bonded to the wood panel using steel fasteners such as bolts or nails.

According to the present invention, it is possible to suppress the penetration of the mounting member of the wood panel into the wood panel, even when a viscoelastic damper is combined with the wood panel.

This is a cross-sectional view showing a wooden vibration-damping wall according to the first embodiment of the present invention. This is a view of a wooden vibration-damping wall according to the first embodiment of the present invention, as seen from the wall thickness direction. This is an enlarged cross-sectional view showing a viscoelastic damper positioned on the upper part of a wooden vibration-damping wall according to the first embodiment of the present invention. This is a plan view of a viscoelastic damper. This is a side view of a viscoelastic damper. This is a cross-sectional view showing a wooden vibration-damping wall according to a modified example of the first embodiment of the present invention. This is a view of a wooden vibration-damping wall according to a modified example of the first embodiment of the present invention, as seen from the wall thickness direction. This is a cross-sectional view showing a wooden vibration-damping wall according to a second embodiment of the present invention. This is a view of a wooden vibration-damping wall according to the second embodiment of the present invention, as seen from the wall thickness direction. This is a cross-sectional view showing a wooden vibration-damping wall according to a modified example of the second embodiment of the present invention. This is a view of a wooden vibration-damping wall according to a modified example of the second embodiment of the present invention, as seen from the wall thickness direction. This figure shows the planar configuration of the structural model used in the simulation study conducted to verify the vibration damping performance. This figure shows the results of a simulation conducted to verify the vibration damping performance.

The present invention relates to a wooden vibration-damping wall in which wooden panels and viscoelastic dampers are bonded together using structural adhesive, rather than frictionally joined with high-strength bolts, between the upper and lower floor beams of a building.
In the first embodiment, a viscoelastic damper, in which steel plates are vulcanized and bonded to the upper and lower surfaces of a viscoelastic body in a factory or the like, is adhesively bonded between mounting steel members (upper mounting steel members, lower mounting steel members) fixed to the beams of a building and a vertical steel plate provided between a pair of wooden panels. In the second embodiment, the viscoelastic damper is adhesively bonded between a vertical steel plate portion extending from the mounting steel members (upper mounting steel members, lower mounting steel members) fixed to the beams of a building and a wooden panel.
The following describes, with reference to the attached drawings, the configuration for implementing the wooden vibration-damping wall according to the present invention.
(First Embodiment)
Figure 1 shows a cross-sectional view of a wooden vibration-damping wall according to the first embodiment of the present invention. Figure 2 is a view of the wooden vibration-damping wall according to the first embodiment of the present invention, viewed from the wall thickness direction. Figure 3 is an enlarged cross-sectional view showing a viscoelastic damper placed on the upper part of the wooden vibration-damping wall according to the first embodiment of the present invention.
As shown in Figures 1 and 2, the wooden vibration-damping wall 10A is installed in the building frame 2 of the building 1 between beams 3A and 3B that are located vertically to each other. The wooden vibration-damping wall 10A comprises an upper mounting steel member 20A, a lower mounting steel member 30A, a wooden panel 40A, and a viscoelastic damper 50A.

The upper mounting steel members 20A are fixed to the upper beam 3A. A pair of upper mounting steel members 20A are provided at intervals in the wall thickness direction Dt of the wooden vibration damping wall 10A. Each upper mounting steel member 20A integrally has a base portion 21, a mounting portion 22, and a rib 23. The base portion 21 extends along the lower surface of the upper beam 3A in the extension direction Da of the beam 3A. The base portion 21 is fixed to the lower surface of the beam 3A by a plurality of bolts 60 arranged at intervals in the extension direction Da of the beam 3A. The mounting portion 22 extends vertically downward from the end of the base portion 21 located on the central side of the upper beam 3A when viewed from the extension direction Da of the beam 3A as shown in Figure 1. The mounting portion 22 extends in the extension direction Da of the beam 3A, similar to the base portion 21. The ribs 23 are provided at multiple locations on the beam 3A at intervals along the extension direction Da. The ribs 23 are provided along a plane perpendicular to the extension direction Da of the beam 3A. The ribs 23 are joined to the base portion 21 and the mounting portion 22.
The lower mounting steel member 30A is fixed to the lower beam 3B. The upper mounting steel member 20A and the lower mounting steel member 30A are spaced apart in the vertical direction Dv. The lower mounting steel member 30A integrally comprises a base portion 31, a second vertical steel plate portion 32, and a rib 33. The base portion 31 extends along the upper surface of the lower beam 3B in the extension direction Da of the beam 3B. The base portion 31 is fixed to the upper surface of the beam 3B by a plurality of bolts 60 arranged at intervals in the extension direction Da of the beam 3B. As shown in Figure 1, when viewed from the extension direction Da of the beam 3B, the second vertical steel plate portion 32 extends upward in the vertical plane from the center of the base portion 31. The second vertical steel plate portion 32 extends in the extension direction Da of the beam 3B, similar to the base portion 31. The ribs 33 are provided at multiple locations spaced apart in the extension direction Da of the beam 3B. Each rib 33 is provided along a plane perpendicular to the extension direction Da of the beam 3B. Each rib 33 is joined to the base portion 31 and the second vertical steel plate portion 32. In the panel material 41 of the wood panel 40A, which will be described later, vertically extending slits are formed so as to penetrate the panel material 41 in the wall thickness direction Dt, and each rib 33 is positioned within these slits.

The wooden panel 40A forms a wall surface between the upper beam 3A and the lower beam 3B. The wooden panel 40A is installed between the upper mounting steel member 20A and the lower mounting steel member 30A. In this embodiment, the wooden panel 40A has a pair of panel members 41.
Each of the pair of panel materials 41 is formed in the shape of a plate. The pair of panel materials 41 are spaced apart in the wall thickness direction Dt. Each of the pair of panel materials 41 has two front and back surfaces 41f and 41g that are formed as planes including the length direction and width direction of the panel material 41. One front and back surface 41f is provided facing each other, and the other front and back surface 41g is provided facing outwards to form a wall surface.
Each panel material 41 is formed, for example, from CLT (Cross Laminated Timber).

The wooden vibration-damping wall 10A includes a vertical steel plate 45A provided between a pair of panel materials 41. The vertical steel plate 45A is sandwiched between the upper parts of the pair of panel materials 41. The vertical steel plate 45A protrudes upward from the upper ends of the pair of panel materials 41.
The second vertical steel plate portion 32 of the lower mounting steel member 30A is sandwiched between the lower parts of the pair of panel materials 41.
The surface 45f of the vertical steel plate 45A and the surface 32f of the second vertical steel plate portion 32 are in contact with the front and back surfaces 41f of a pair of panel materials 41 constituting the wood panel 40A, which are facing inward and opposite to each other. Each of the surfaces 45f of the vertical steel plate 45A is joined to each of the upper front and back surfaces 41f of the wood panel 40A with structural adhesive J.
Structural adhesive J is an adhesive that is said to have more than twice the bonding strength compared to joining methods such as spot welding, bolting, and riveting. Therefore, structural adhesive J is characterized by its high bonding strength in connecting members and its excellent durability, and includes epoxy adhesives, acrylic adhesives, and urethane adhesives.
Specifically, in the wood vibration-damping wall of the present invention, it is desirable to use a structural adhesive J that has sufficient peel strength (4.5 N/mm² or more) and shear strength (15 N/ ^mm² or more) relative to the rupture strength (approximately 2.0 N/ ^mm² ) of the high-damping rubber used as the viscoelastic body 53 of the viscoelastic damper 50A, which will be described later. As the structural adhesive J, it is desirable to use a two-component acrylic resin type that can adhere even if the surface is somewhat uneven, oily, or dusty, and has a short curing time. For example, as the structural adhesive J, it is possible to use "Y618H" or "Y630D" from the Metal Lock series of two-component acrylic resin types manufactured by Cemedyne Co., Ltd.
Each of the surfaces 32f of the second vertical steel plate section 32 is joined to each of the front and back surfaces 41f of the lower part of the wood panel 40A with a two-component acrylic resin structural adhesive J. In this way, the lower mounting steel members 30A are joined and fixed to the front and back surfaces 41f of the wood panel 40A.

As shown in Figure 3, the viscoelastic damper 50A integrally comprises a first steel plate 51, a second steel plate 52, and a viscoelastic body 53.
Figures 4A and 4B are a plan view and a side view of the viscoelastic damper, respectively.
The viscoelastic damper 50A is integrally formed by laminating a first steel plate 51, a viscoelastic body 53, and a second steel plate 52 in that order. The first steel plate 51 and the second steel plate 52 are provided parallel to each other and spaced apart. The viscoelastic body 53 is provided between the first steel plate 51 and the second steel plate 52. In this embodiment, the viscoelastic damper 50A is manufactured so that the first steel plate 51, the second steel plate 52, and the viscoelastic body 53 become an integral unit by providing the first steel plate 51 and the second steel plate 52 spaced apart from each other and vulcanizing the viscoelastic body 53 between them. In particular, in this embodiment, the viscoelastic damper 50A is formed in such a way that when viewed from the thickness direction, its shape is substantially square, and a unitized version is used.

As for the viscoelastic material 53, it is desirable to use high-damping rubber because it exhibits small temperature and frequency dependence and has a large damping capacity per unit area.
High-damping rubber is a type of rubber with high hardness. Compared to other types of rubber that can be used as viscoelastic dampers, high-damping rubber has a greater damping force and can be used for seismic resistance. More specifically, in this embodiment, the high-damping rubber used as the viscoelastic body 53 is an isoprene-based rubber with nonlinear properties, an allowable strain of 200%, a limit strain of 300%, and a maximum damping force of 400 kN.
In this embodiment, the high-damping rubber used as the viscoelastic body 53 has a small temperature dependence of 0.70 (30°C/10°C). More specifically, the decrease in absorbed energy of the high-damping rubber when the temperature rises, for example, from 0°C to 40°C, is smaller than that of linear rubber. Thus, the high-damping rubber has a small temperature dependence and can absorb large amounts of energy even at high temperatures. Furthermore, when the relationship between shear stress and strain is represented graphically, the high-damping rubber has a larger hysteresis loop than linear rubber, and therefore can cope even when the shear stress increases. For these reasons as well, it is desirable to use high-damping rubber as the viscoelastic body 53.
For example, "VS4" manufactured by Sumitomo Rubber Industries, Ltd. can be used as the viscoelastic material 53.

In this embodiment, the viscoelastic damper 50A is provided between the upper mounting steel member 20A and the wood panel 40A. In this embodiment, the viscoelastic damper 50A is positioned above the pair of panel members 41. The viscoelastic damper 50A is sandwiched between the portion of the vertical steel plate 45A that protrudes upward from the upper ends of the pair of panel members 41 and the mounting portion 22 of the pair of upper mounting steel members 20A. As shown in Figure 2, a plurality of viscoelastic dampers 50A are arranged in a line along the extension direction Da of the beam 3A.
The first steel plate 51 of each viscoelastic damper 50A has its surface in contact with the surface 45f of the vertical steel plate 45A and is bonded to the surface 45f of the vertical steel plate 45A with a two-component acrylic resin structural adhesive J. In this way, the first steel plate 51 is fixed to the front and back surfaces 41f of the wood panel 40A via the vertical steel plate 45A.
The second steel plate 52 of each viscoelastic damper 50A has its surface in contact with the surface of the mounting portion 22 of the upper mounting steel material 20A, and is bonded to the surface of the mounting portion 22 with a two-component acrylic resin structural adhesive J.

In this type of wooden vibration-damping wall 10A, the first steel plate 51 of the viscoelastic damper 50A is fixed to the front and back surfaces 41f of the wooden panel 40A via the vertical steel plate 45A. The second steel plate 52 of the viscoelastic damper 50A is joined to the upper mounting steel member 20A. In this way, the upper side of the wooden panel 40A is fixed to the upper beam 3A via the vertical steel plate 45A, the viscoelastic damper 50A, and the upper mounting steel member 20A.
Furthermore, the lower mounting steel member 30A and the front and back surfaces 41f of the wooden panel 40A are joined together. In this way, the lower side of the wooden panel 40A is fixed to the lower beam 3B via the lower mounting steel member 30A.
In this configuration, if the building 1, which is equipped with a wooden vibration-damping wall 10A, shakes due to, for example, an earthquake or wind, the upper beam 3A and the lower beam 3B will displace relative to each other. At this time, the lower mounting steel member 30A, the wooden panel 40A, and the vertical steel plate 45A will displace together with the lower beam 3B, and the upper mounting steel member 20A will displace together with the upper beam 3A. Then, in the viscoelastic damper 50A, the first steel plate 51 and the second steel plate 52 will attempt to displace relative to each other. This relative displacement is damped by the viscoelastic body 53 of the viscoelastic damper 50A, which is provided between the first steel plate 51 and the second steel plate 52, thereby suppressing the shaking of the building 1.

The wooden vibration-damping wall 10A described above is a wooden vibration-damping wall 10A in which wooden panels 40A and viscoelastic dampers 50A are combined, and comprises an upper mounting steel member 20A fixed to an upper beam 3A, a lower mounting steel member 30A fixed to a lower beam 3B, wooden panels 40A forming a wall surface, a first steel plate 51 and a second steel plate 52 provided spaced apart from each other, and provided between the first steel plate 51 and the second steel plate 52 The device comprises a viscoelastic damper 50A having a viscoelastic body 53, the first steel plate 51 being fixed to the front and back surfaces 41f of the wood panel 40A, the second steel plate 52 being joined to the upper mounting steel member 20A (either the upper mounting steel member 20A or the lower mounting steel member 30A), and the lower mounting steel member 30A (the other of the upper mounting steel member 20A or the lower mounting steel member 30A) being fixed to the front and back surfaces 41f of the wood panel 40A.
In this configuration, the viscoelastic damper 50A is provided such that the first steel plate 51 constituting the viscoelastic damper 50A is fixed to the front and back surfaces 41f of the wood panel 40A, and the second steel plate 52 is joined to the upper mounting steel member 20A. Since the viscoelastic damper 50A is fixed to the wide front and back surfaces 41f of the wood panel 40A, in the joining between the interposed member (vertical steel plate 45A) between the viscoelastic damper 50A and the wood panel 40A and the wood panel 40A, the joining surface is made planar, the joining area is increased, and the stress acting from the upper mounting steel member 20A to the wood panel 40A can be distributed over a wide area.
Furthermore, the lower mounting steel member 30A is fixed to the front and back surfaces 41f of the wood panel 40A. Because the lower mounting steel member 30A is fixed to the wide front and back surfaces 41f of the wood panel 40A, the joint between the lower mounting steel member 30A and the wood panel 40A can be made flat while increasing the joint area, thereby distributing the stress acting from the lower mounting steel member 30A to the wood panel 40A over a wide area.
In this way, by distributing the stress acting on the wood panel 40A over a wide area, localized stress on the wood panel 40A is suppressed, and a configuration can be realized that suppresses the sinking of the mounting member for the wood panel 40A into the wood panel 40A, even while a viscoelastic damper 50A is provided in combination with the wood panel 40A.

Furthermore, the wooden vibration-damping wall 10A is provided with a vertical steel plate 45A sandwiching a viscoelastic damper 50A between the upper mounting steel member 20A (either the upper mounting steel member 20A or the lower mounting steel member 30A), the first steel plate 51 is joined to the vertical steel plate 45A, and the surface 45f of the vertical steel plate 45A and the front and back surfaces 41f of the wooden panel 40A are joined by a structural adhesive J.
For example, when joining a component to a wooden panel, if steel fasteners such as bolts or nails are used, stress will concentrate around the area where the bolts or nails are installed in the wooden panel. This could cause the component to sink into the wooden panel.
In contrast, with the above-described configuration, the surface 45f of the vertical steel plate 45A, which is joined to the first steel plate 51 constituting the viscoelastic damper 50A, is firmly joined to the front and back surfaces 41f of the wood panel 40A by structural adhesive J (for example, a two-component acrylic resin-based structural adhesive). As a result, compared to the case where the vertical steel plate 45A is joined to the wood panel 40A using steel fasteners such as bolts or nails, the indentation of the vertical steel plate 45A into the wood panel 40A can be suppressed.

Furthermore, the first steel plate 51 and the second steel plate 52 of the viscoelastic damper 50A are joined to the vertical steel plate 45A and the upper mounting steel member 20A by structural adhesive J. Therefore, there is no need to use bolts to attach the viscoelastic damper 50A. As a result, there is no need to provide joining surfaces in the first steel plate 51 and the second steel plate 52 for fastening bolts, and the viscoelastic damper 50A can be made more compact.
Alternatively, a viscoelastic material can be provided in the first steel plate 51 and the second steel plate 52 in the areas where a joining surface for fastening bolts would have been provided, thereby increasing the area of the viscoelastic material. In this case, the performance of the viscoelastic damper 50A can be improved. In particular, in this embodiment, by using a high-damping rubber as the viscoelastic material 53 over the entire increased area in this way, which has relatively little temperature dependence and frequency dependence, a large maximum shear stress it can withstand, and a large damping force, the seismic performance is improved.
Furthermore, when the first steel plate 51 and the second steel plate 52 of the viscoelastic damper 50A are joined to the vertical steel plate 45A and the upper mounting steel member 20A by bolts, the connection of the joint becomes complex. In contrast, in this embodiment, by joining them with a structural adhesive J, the structure of the joint can be made simpler.

Furthermore, the lower mounting steel member 30A includes a second vertical steel plate portion 32 that extends in a vertical plane toward the wood panel 40A, and the surface 32f of the second vertical steel plate portion 32 is joined to the front and back surfaces 41f of the wood panel 40A with a structural adhesive J.
With this configuration, the surface 32f of the second vertical steel plate portion 32 of the lower mounting steel member 30A and the front and back surfaces 41f of the wood panel 40A are firmly joined together by a structural adhesive J (for example, a two-component acrylic resin-based structural adhesive). As a result, compared to the case where the second vertical steel plate portion 32 is joined to the wood panel 40A using steel fasteners such as bolts or nails, the indentation of the second vertical steel plate portion 32 into the wood panel 40A can be suppressed.

(Modified version of the first embodiment)
Furthermore, the wooden vibration-damping wall of the present invention is not limited to the first embodiment described above with reference to the drawings, and various modifications are conceivable within its technical scope.
For example, in the first embodiment described above, the viscoelastic damper 50A is positioned between the upper mounting steel member 20A and the vertical steel plate 45 provided on the upper part of the wooden panel 40A, but the embodiment is not limited to this.
Figure 5 shows a cross-sectional view of a wooden vibration-damping wall according to a modified example of the first embodiment of the present invention. Figure 6 is a view of the wooden vibration-damping wall according to the first embodiment of the present invention, as seen from the wall thickness direction.
This modified example has a configuration in which the first embodiment described above is inverted in the vertical direction.
The wooden vibration-damping wall 10B comprises a lower mounting steel member 30B, an upper mounting steel member 20B, a wooden panel 40B, and a viscoelastic damper 50B.
The upper mounting steel member 20B is fixed to the upper beam 3A. The upper mounting steel member 20B integrally comprises a base portion 31, a second vertical steel plate portion 32, and a rib 33. The base portion 31 is fixed to the lower surface of the beam 3A by a plurality of bolts 60 arranged at intervals in the extension direction Da. As shown in Figure 5, when viewed from the extension direction Da of the beam 3A, the second vertical steel plate portion 32 extends downward in the vertical plane from the center of the base portion 31.
The lower mounting steel members 30B are fixed to the lower beam 3B. A pair of lower mounting steel members 30B are provided at intervals in the wall thickness direction Dt of the wooden vibration-damping wall 10B. Each lower mounting steel member 30B integrally has a base portion 21, a mounting portion 22, and a rib 23. The base portion 21 is fixed to the upper surface of the lower beam 3B by a plurality of bolts 60 arranged at intervals in the extension direction Da. The mounting portion 22 extends vertically upward from the end of the base portion 21 located on the central side of the lower beam 3B when viewed from the extension direction Da of the beam 3A as shown in Figure 5.

As shown in Figure 5, the wood panel 40B has a pair of panel materials 41. Each of the pair of panel materials 41 is formed in the shape of a plate. The pair of panel materials 41 are spaced apart in the wall thickness direction Dt.
The wooden vibration-damping wall 10B includes a vertical steel plate 45B provided between a pair of panel materials 41. The vertical steel plate 45B is sandwiched between the lower parts of the pair of panel materials 41. The vertical steel plate 45B protrudes downward from the lower ends of the pair of panel materials 41.
The second vertical steel plate portion 32 of the upper mounting steel member 20B is sandwiched between the upper parts of the pair of panel materials 41.
The surface 45f of the vertical steel plate 45B and the surface 32f of the second vertical steel plate portion 32 are in contact with the front and back surfaces 41f of a pair of panel materials 41 constituting the wood panel 40B, which are facing inward and opposite to each other. Each of the surfaces 45f of the vertical steel plate 45B is joined to each of the lower front and back surfaces 41f of the wood panel 40B with a two-component acrylic resin-based structural adhesive J.
Each of the surfaces 32f of the second vertical steel plate section 32 is joined to each of the upper front and back surfaces 41f of the wood panel 40B with a two-component acrylic resin-based structural adhesive J. As a result, the upper mounting steel members 20B are joined and fixed to the front and back surfaces 41f of the wood panel 40B.

In this modified example, the viscoelastic damper 50B is provided between the lower mounting steel member 30B and the wood panel 40B. In this modified example, the viscoelastic damper 50B is positioned below the pair of panel members 41. The viscoelastic damper 50B is sandwiched between the portion of the vertical steel plate 45B that protrudes downward from the lower ends of the pair of panel members 41 and the mounting portion 22 of the pair of lower mounting steel members 30B.
The surface of the first steel plate 51 of each viscoelastic damper 50B is in contact with the surface 45f of the vertical steel plate 45B and is bonded to the surface 45f of the vertical steel plate 45B with a two-component acrylic resin structural adhesive J. In this way, the first steel plate 51 is fixed to the front and back surfaces 41f of the wood panel 40B via the vertical steel plate 45B.
The second steel plate 52 of each viscoelastic damper 50B has its surface in contact with the surface of the mounting portion 22 of the lower mounting steel material 30B, and is bonded to the surface of the mounting portion 22 with a two-component acrylic resin structural adhesive J.

The wooden vibration-damping wall 10B described above is a wooden vibration-damping wall 10B in which wooden panels 40B and viscoelastic dampers 50B are combined, and comprises an upper mounting steel member 20B fixed to an upper beam 3A, a lower mounting steel member 30B fixed to a lower beam 3B, wooden panels 40B forming a wall surface, a first steel plate 51 and a second steel plate 52 provided spaced apart from each other, and provided between the first steel plate 51 and the second steel plate 52 The device comprises a viscoelastic damper 50B having a viscoelastic body 53, the first steel plate 51 is fixed to the front and back surfaces 41f of the wood panel 40B, the second steel plate 52 is joined to the lower mounting steel member 30B (either the upper mounting steel member 20B or the lower mounting steel member 30B), and the upper mounting steel member 20B (the other of the upper mounting steel member 20B and the lower mounting steel member 30B) is fixed to the front and back surfaces 41f of the wood panel 40B.
Furthermore, the wooden vibration-damping wall 10B is provided with a vertical steel plate 45B sandwiching a viscoelastic damper 50B between the lower mounting steel members 30B, the first steel plate 51 is joined to the vertical steel plate 45B, and the surface 45f of the vertical steel plate 45B and the front and back surfaces 41f of the wooden panel 40B are joined by a structural adhesive J.
Furthermore, the upper mounting steel member 20B includes a second vertical steel plate portion 32 that extends in a vertical plane toward the wood panel 40B, and the surface 32f of the second vertical steel plate portion 32 is joined to the front and back surfaces 41f of the wood panel 40B with a structural adhesive J.
It goes without saying that this configuration will produce the same effects as the first embodiment described above.

(Second Embodiment)
Figure 7 shows a cross-sectional view of a wooden vibration-damping wall according to a second embodiment of the present invention. Figure 8 is a view of the wooden vibration-damping wall according to the second embodiment of the present invention, viewed from the wall thickness direction.
As shown in Figures 7 and 8, the wooden vibration-damping wall 10C comprises an upper mounting steel member 20C, a lower mounting steel member 30C, a wooden panel 40C, and a viscoelastic damper 50C.
The upper mounting steel member 20C is fixed to the upper beam 3A. The upper mounting steel member 20C integrally comprises a base portion 27 and a first vertical steel plate portion 28. The base portion 27 extends along the lower surface of the upper beam 3A in the extension direction Da of the beam 3A. The base portion 27 is fixed to the lower surface of the beam 3A by a plurality of bolts 60 arranged at intervals in the extension direction Da of the beam 3A. As shown in Figure 7, when viewed from the extension direction Da of the beam 3A, the first vertical steel plate portion 28 extends downward in the vertical plane from the center of the base portion 27.
The lower mounting steel member 30C is fixed to the lower beam 3B. The upper mounting steel member 20C and the lower mounting steel member 30C are spaced apart in the vertical direction Dv. The lower mounting steel member 30C integrally comprises a base portion 31, a second vertical steel plate portion 32, and a rib 33. The base portion 31 extends along the upper surface of the lower beam 3B in the extension direction Da of the beam 3B. The base portion 31 is fixed to the upper surface of the beam 3B by a plurality of bolts 60 arranged at intervals in the extension direction Da of the beam 3B. As shown in Figure 7, when viewed from the extension direction Da of the beam 3B, the second vertical steel plate portion 32 extends upward in the vertical plane from the center of the base portion 31. The second vertical steel plate portion 32 extends in the extension direction Da of the beam 3B, similar to the base portion 31. The ribs 33 are provided at multiple locations spaced apart in the extension direction Da of the beam 3B. Each rib 33 is provided along a plane perpendicular to the extension direction Da of the beam 3B. Each rib 33 is joined to the base portion 31 and the second vertical steel plate portion 32. The panel material 41 of the wood panel 40C has vertically extending slits formed so as to penetrate the panel material 41 in the wall thickness direction Dt, and each rib 33 is positioned within these slits.

The wooden panel 40C forms a wall surface between the upper beam 3A and the lower beam 3B. The wooden panel 40C is installed between the upper mounting steel member 20C and the lower mounting steel member 30C. In this embodiment, the wooden panel 40C has a pair of panel members 41.
Each of the pair of panel materials 41 is formed in the shape of a plate. The pair of panel materials 41 are spaced apart in the wall thickness direction Dt. Each of the pair of panel materials 41 has two front and back surfaces that are formed as planes including the length direction and width direction of the panel material 41, with one front and back surface 41f facing each other and the other front and back surface facing outward to form a wall surface.

Between the lower parts of the pair of panel materials 41, the second vertical steel plate portion 32 of the lower mounting steel member 30C is sandwiched via a spacer 39. The spacer 39 has a thickness equivalent to that of the viscoelastic damper 50C. Both sides of the spacer 39 are in contact with the surface 32f of the second vertical steel plate portion 32 and the front and back surfaces 41f of the panel material 41. Both sides of the spacer 39 are joined to the surface 32f of the second vertical steel plate portion 32 and the front and back surfaces 41f of the lower part of the wood panel 40C, respectively, using a two-component acrylic resin-based structural adhesive J. As a result, the lower mounting steel member 30C is fixed to the front and back surfaces 41f of the wood panel 40C via the spacer 39. The structural adhesive J can be the same as that described in the first embodiment.

As shown in Figure 7, the viscoelastic damper 50C integrally comprises a first steel plate 51, a second steel plate 52, and a viscoelastic body 53. The viscoelastic damper 50C is integrally formed by laminating the first steel plate 51, the viscoelastic body 53, and the second steel plate 52 in this order. The first steel plate 51 and the second steel plate 52 are provided parallel to each other and spaced apart. The viscoelastic body 53 is provided between the first steel plate 51 and the second steel plate 52. In this embodiment, the viscoelastic damper 50A is manufactured so that the first steel plate 51, the second steel plate 52, and the viscoelastic body 53 are integrated into a single unit by providing the first steel plate 51 and the second steel plate 52 spaced apart from each other and vulcanizing the viscoelastic body 53 between them. In particular, in this embodiment, the viscoelastic damper 50C is formed in such a way that its shape is approximately square when viewed from the thickness direction, and a unitized version is used.

In this embodiment, the viscoelastic damper 50C is provided between the first vertical steel plate portion 28 of the upper mounting steel member 20C and the pair of panel members 41 of the wood panel 40C. The viscoelastic damper 50C is sandwiched between the first vertical steel plate portion 28 and the pair of panel members 41 below the upper ends of the pair of panel members 41. As shown in Figure 8, a plurality of viscoelastic dampers 50C are arranged in a line along the extension direction Da of the beam 3A.
The first steel plate 51 of each viscoelastic damper 50C has its surface in contact with the front and back surfaces 41f of the panel material 41 that constitutes the wood panel 40C, and is bonded to the front and back surfaces 41f of the panel material 41 with a two-component acrylic resin structural adhesive J.
The second steel plate 52 of each viscoelastic damper 50C has its surface in contact with the surface 28f of the first vertical steel plate portion 28 of the upper mounting steel material 20C, and is bonded to the surface 28f of the first vertical steel plate portion 28 with a two-component acrylic resin structural adhesive J.

In the first embodiment, the viscoelastic damper 50A was provided above the wooden panel 40A. In building 1, if the height of the walls is made as high as possible in order to increase the interior space, the distance between the upper end of the wooden panel 40A and the upper beam 3A becomes small, so the size of the viscoelastic damper 50A provided in this part may be small.
In contrast, in this embodiment, the viscoelastic damper 50C is provided at the same height as the panel material 41 and is directly bonded to the panel material 41. Therefore, compared to the configuration of the first embodiment, as shown in Figure 8, it is possible to use larger viscoelastic dampers 50C, which may improve vibration damping performance compared to the first embodiment.

In this type of wooden vibration-damping wall 10C, the first steel plate 51 of the viscoelastic damper 50C is joined to the front and back surfaces 41f of the wooden panel 40C. The second steel plate 52 of the viscoelastic damper 50C is joined to the upper mounting steel member 20C. In this way, the upper side of the wooden panel 40C is fixed to the upper beam 3A via the viscoelastic damper 50C and the upper mounting steel member 20C.
Furthermore, the lower mounting steel member 30C and the spacer 39 are joined together, and the spacer 39 and the front and back surfaces 41f of the wood panel 40C are joined together. In this way, the lower side of the wood panel 40C is fixed to the lower beam 3B via the spacer 39 and the lower mounting steel member 30C.
In this configuration, if the building 1, which is equipped with a wooden vibration-damping wall 10C, shakes due to, for example, an earthquake or wind, the upper beam 3A and the lower beam 3B will displace relative to each other. At this time, the lower mounting steel member 30C, the spacer 39, and the wooden panel 40C will displace together with the lower beam 3B, and the upper mounting steel member 20C will displace together with the upper beam 3A. Then, in the viscoelastic damper 50C, the first steel plate 51 and the second steel plate 52 will attempt to displace relative to each other. This relative displacement is damped by the viscoelastic body 53 of the viscoelastic damper 50C, which is provided between the first steel plate 51 and the second steel plate 52, thereby suppressing the shaking of the building 1.

The wooden vibration-damping wall 10C described above is a wooden vibration-damping wall 10C in which wooden panels 40C and viscoelastic dampers 50C are combined, and comprises an upper mounting steel member 20C fixed to an upper beam 3A, a lower mounting steel member 30C fixed to a lower beam 3B, wooden panels 40C that form the wall surface, a first steel plate 51 and a second steel plate 52 provided spaced apart from each other, and provided between the first steel plate 51 and the second steel plate 52 The device comprises a viscoelastic damper 50C having a viscoelastic body 53, the first steel plate 51 being fixed to the front and back surfaces 41f of the wood panel 40C, the second steel plate 52 being joined to the upper mounting steel member 20C (either the upper mounting steel member 20C or the lower mounting steel member 30C), and the lower mounting steel member 30C (the other of the upper mounting steel member 20C or the lower mounting steel member 30C) being fixed to the front and back surfaces 41f of the wood panel 40C.
In this configuration, the viscoelastic damper 50C is provided such that the first steel plate 51 constituting the viscoelastic damper 50C is fixed to the front and back surfaces 41f of the wood panel 40C, and the second steel plate 52 is joined to the upper mounting steel member 20C. Since the viscoelastic damper 50C is fixed to the wide front and back surfaces 41f of the wood panel 40C, the joining surface between the viscoelastic damper 50C and the wood panel 40C is made planar while increasing the joining area, thereby distributing the stress acting from the upper mounting steel member 20C to the wood panel 40C over a wide area.
Furthermore, the lower mounting steel member 30C is fixed to the front and back surfaces 41f of the wood panel 40C. Since the lower mounting steel member 30C is fixed to the wide front and back surfaces 41f of the wood panel 40C, in the joint between the member (spacer 39) interposed between the lower mounting steel member 30C and the wood panel 40C and the wood panel 40C, the joint surface is made planar, the joint area is increased, and the stress acting from the lower mounting steel member 30C to the wood panel 40C can be distributed over a wide area.
In this way, by distributing the stress acting on the wood panel 40C over a wide area, localized stress on the wood panel 40C is suppressed, and a configuration can be realized that suppresses the sinking of the mounting member for the wood panel 40C into the wood panel 40C, even while a viscoelastic damper 50C is provided in combination with the wood panel 40C.

Furthermore, the upper mounting steel member 20C (either the upper mounting steel member 20C or the lower mounting steel member 30C) is provided with a first vertical steel plate portion 28 that extends in a vertical plane toward the wood panel 40C, a viscoelastic damper 50C is provided between the first vertical steel plate portion 28 and the wood panel 40C, the surface 28f of the first vertical steel plate portion 28 and the second steel plate 52 are joined, and the first steel plate 51 is joined to the front and back surfaces 41f of the wood panel 40C with structural adhesive J.
For example, when joining a component to a wooden panel, if steel fasteners such as bolts or nails are used, stress will concentrate around the area where the bolts or nails are installed in the wooden panel. This could cause the component to sink into the wooden panel.
In contrast, with the above-described configuration, the first steel plate 51 of the viscoelastic damper 50C is firmly bonded to the front and back surfaces 41f of the wood panel 40C using a structural adhesive J (for example, a two-component acrylic resin-based structural adhesive). This makes it possible to suppress the first steel plate 51 from sinking into the wood panel 40C compared to when the first steel plate 51 is bonded to the wood panel 40C using steel fasteners such as bolts or nails.

Furthermore, the first steel plate 51 and the second steel plate 52 of the viscoelastic damper 50C are joined to the wood panel 40C and the first vertical steel plate section 28 by structural adhesive J. Therefore, there is no need to use bolts to attach the viscoelastic damper 50C. As a result, there is no need to provide joining surfaces in the first steel plate 51 and the second steel plate 52 for fastening bolts, and the viscoelastic damper 50C can be made more compact.
Alternatively, a viscoelastic material can be provided in the first steel plate 51 and the second steel plate 52 in the areas where a joining surface for fastening bolts would have been provided, thereby increasing the area of the viscoelastic material. In this case, the performance of the viscoelastic damper 50C can be improved. In particular, in this embodiment, by using a high-damping rubber as the viscoelastic material 53 over the entire increased area in this way, which has relatively little temperature dependence and frequency dependence, a large maximum shear stress it can withstand, and a large damping force, the seismic performance is improved.
Furthermore, when the first steel plate 51 and the second steel plate 52 of the viscoelastic damper 50C are joined to the wood panel 40C and the first vertical steel plate section 28 by bolts, the connection of the joint becomes complex. In contrast, in this embodiment, by joining them with a structural adhesive J, the structure of the joint can be made simpler.

(Modification of the second embodiment)
Furthermore, the wooden vibration-damping wall of the present invention is not limited to the second embodiment described above with reference to the drawings, and various modifications are conceivable within its technical scope.
For example, in the second embodiment described above, the viscoelastic damper 50C is provided between the first vertical steel plate portion 28 of the upper mounting steel member 20C and the upper part of the wood panel 40C, but the embodiment is not limited to this.
Figure 9 shows a cross-sectional view of a wooden vibration-damping wall according to a modified example of the second embodiment of the present invention. Figure 10 is a view of the wooden vibration-damping wall according to the second embodiment of the present invention, as seen from the wall thickness direction.
This modified example has a configuration in which the second embodiment described above is inverted in the vertical direction.
The wooden vibration-damping wall 10D comprises an upper mounting steel member 20D, a lower mounting steel member 30D, a wooden panel 40D, and a viscoelastic damper 50D.
The upper mounting steel member 20D is fixed to the upper beam 3A. The upper mounting steel member 20D integrally comprises a base portion 31, a second vertical steel plate portion 32, and a rib 33. The base portion 31 is fixed to the lower surface of the beam 3A by a plurality of bolts 60 arranged at intervals in the extension direction Da. As shown in Figure 9, the second vertical steel plate portion 32 extends downward in the vertical plane from the center of the base portion 31 when viewed from the extension direction Da of the beam 3A.
The lower mounting steel member 30D is fixed to the lower beam 3B. The lower mounting steel member 30D integrally comprises a base portion 27 and a first vertical steel plate portion 28. The base portion 27 is fixed to the upper surface of the lower beam 3B by a plurality of bolts 60 arranged at intervals in the extension direction Da. As shown in Figure 9, when viewed from the extension direction Da of the beam 3A, the first vertical steel plate portion 28 extends upward in the vertical plane from the center of the base portion 27.

The wood panel 40D has a pair of panel materials 41. Each of the pair of panel materials 41 is formed in the shape of a plate. The pair of panel materials 41 are spaced apart in the wall thickness direction Dt.
Between the upper parts of the pair of panel materials 41, the second vertical steel plate portion 32 of the upper mounting steel member 20D is sandwiched via a spacer 39. Both sides of the spacer 39 are in contact with the surface 32f of the second vertical steel plate portion 32 and the front and back surfaces 41f of the panel material 41. Both sides of the spacer 39 are joined to the surface 32f of the second vertical steel plate portion 32 and the front and back surfaces 41f of the upper part of the wood panel 40D, respectively, with a two-component acrylic resin-based structural adhesive J. As a result, the upper mounting steel member 20D is fixed to the front and back surfaces 41f of the wood panel 40D via the spacer 39.

As shown in Figure 9, in this modified example, the viscoelastic damper 50D is provided between the first vertical steel plate portion 28 of the lower mounting steel member 30D and the wood panel 40D. The viscoelastic damper 50D is sandwiched between the first vertical steel plate portion 28 and the pair of panel materials 41, above the lower ends of the pair of panel materials 41.
The first steel plate 51 of each viscoelastic damper 50D has its surface in contact with the front and back surfaces 41f of the panel material 41 that constitutes the wood panel 40D, and is bonded to the front and back surfaces 41f of the panel material 41 with a two-component acrylic resin structural adhesive J.
The second steel plate 52 of each viscoelastic damper 50D has its surface in contact with the surface of the first vertical steel plate portion 28 of the lower mounting steel material 30D, and is bonded to the surface of the first vertical steel plate portion 28 with a two-component acrylic resin structural adhesive J.

The wooden vibration-damping wall 10D described above is a wooden vibration-damping wall 10D in which wooden panels 40D and viscoelastic dampers 50D are combined, and comprises an upper mounting steel member 20D fixed to an upper beam 3A, a lower mounting steel member 30D fixed to a lower beam 3B, wooden panels 40D forming a wall surface, a first steel plate 51 and a second steel plate 52 provided spaced apart from each other, and provided between the first steel plate 51 and the second steel plate 52 The device comprises a viscoelastic damper 50D having a viscoelastic body 53, the first steel plate 51 being fixed to the front and back surfaces 41f of the wood panel 40D, the second steel plate 52 being joined to the lower mounting steel member 30D (either the upper mounting steel member 20D or the lower mounting steel member 30D), and the upper mounting steel member 20D (the other of the upper mounting steel member 20D and the lower mounting steel member 30D) being fixed to the front and back surfaces 41f of the wood panel 40D.
Furthermore, the lower mounting steel member 30D includes a first vertical steel plate portion 28 that extends in a vertical plane toward the wood panel 40D, a viscoelastic damper 50D is provided between the first vertical steel plate portion 28 and the wood panel 40D, the surface of the first vertical steel plate portion 28 and the second steel plate 52 are joined, and the first steel plate 51 is joined to the front and back surfaces 41f of the wood panel 40D with structural adhesive J.
It goes without saying that this configuration will produce the same effects as the second embodiment described above.

(Other forms of torture)
Furthermore, in the above embodiments and their modifications, the lower mounting steel members 30A to 30D are fixed to the lower beam 3B, but the lower mounting steel members 30A to 30D may also be fixed to the lower foundation.
In other words, in this case, the wooden vibration-damping wall is a wooden vibration-damping wall that combines wooden panels and a viscoelastic damper, comprising: an upper mounting steel member fixed to an upper beam; a lower mounting steel member fixed to a lower foundation; wooden panels forming the wall surface; a first steel plate and a second steel plate provided spaced apart from each other; and a viscoelastic damper provided between the first steel plate and the second steel plate, wherein the first steel plate is fixed to the front and back surfaces of the wooden panel, the second steel plate is joined to either the upper mounting steel member or the lower mounting steel member, and the other of the upper mounting steel member and the lower mounting steel member is fixed to the front and back surfaces of the wooden panel.
It goes without saying that even with this configuration, the same effects as those of the above embodiments and their modified versions will be achieved.

Furthermore, in each of the above embodiments and its modifications, a vertical steel plate 45 or a first vertical steel plate portion 28 and a second vertical steel plate portion 32 are provided between a pair of panel materials 41, divided vertically. However, these may also be formed from a single steel plate that is continuous in the vertical direction.
Furthermore, while the viscoelastic dampers 50A to 50D are configured to include a first steel plate 51, a second steel plate 52, and a viscoelastic body 53 disposed between them, the viscoelastic dampers may also be configured to include one or more additional steel plates between the first steel plate 51 and the second steel plate 52, with a viscoelastic body provided between each of the steel plates, including the first steel plate 51 and the second steel plate 52.
Furthermore, in each of the above embodiments, a pair of panel materials 41 are arranged in parallel with a gap between them, but in the case of providing a bridging member at predetermined intervals in the gap, or providing a gap-filling member in the gap, the bridging member or gap-filling member can be provided in the gap. By providing a bridging member or gap-filling member in the gap between the panel materials 41, the axial rigidity and shear rigidity of the wood panel can be increased, so that the relative deformation between the beams of the upper and lower floors on which the wood panel 41 is installed can be efficiently absorbed by the viscoelastic damper.
Furthermore, in the above embodiments and their modifications, the wood panels 40A to 40D are configured to have a pair of panel materials 41. However, instead, the wood panels 40A to 40D may be configured to have only one panel material 41. In other words, in this case, one of the panel materials 41 is removed in the above embodiments and their modifications.
In addition to the above, it is possible to select or replace the configurations listed in the above embodiments, or to change them to other configurations as appropriate, as long as it does not deviate from the spirit of the present invention.

(Example of consideration)
Next, we examined the vibration damping performance of the wooden vibration-damping walls shown in each of the above embodiments, and the results are shown below.
The response during an earthquake was verified by simulation when the wooden vibration-damping wall 10A described above was installed in building 1.
Figure 11 shows the planar configuration of the building's structural model used in the simulation study conducted to verify the vibration damping performance.
Building 1 is a 13-story building with a structural frame 2 as shown in Figure 11. The floor plan of each floor of structural frame 2 is 36.0 m x 24.8 m. The floor height is 5.0 m for the first floor and 4.2 m for the other floors.
As shown in Figure 11, eight wooden damping walls 10A, each with a maximum damping force of 40 to 100 tons, were installed on each floor, resulting in a total of 104 walls (8 walls x 13 floors) throughout the entire structure 2.
For this study model, the maximum response values for seven Level 2 seismic waves (four times the officially designated wave and three times the observed wave) were obtained through simulation.
For comparison, a similar simulation was also performed in a case where the wooden vibration-damping wall 10A was not provided and the structural frame 2 was a standard earthquake-resistant structure.
Figure 12 shows the results of a simulation study conducted to verify the vibration damping performance.
As shown in Figure 12, the simulation results confirmed that, compared to a normal earthquake-resistant structure without the wooden damping wall 10A, the installation of the wooden damping wall 10A reduces the inter-story drift angle by up to approximately 30%.

3A Upper beam 41 Panel material 3B Lower beam 41f Front and back surfaces 10A-10D Wooden vibration damping wall 45A, 45B Vertical steel plate 20A-20D Upper mounting steel material 45f Surface 28 First vertical steel plate section 50A-50D Viscoelastic damper 28f Surface 51 First steel plate 30A-30D Lower mounting steel material 52 Second steel plate 32 Second vertical steel plate section 53 Viscoelastic material 32f Surface J Structural adhesive 40A-40D Wooden panel

Claims (3)

A wooden vibration-damping wall that combines wooden panels and viscoelastic dampers,
Upper mounting steel members fixed to the upper beam,
Lower mounting steel members fixed to the lower beam or foundation,
The wooden panel that forms the wall surface,
The viscoelastic damper comprises a first steel plate and a second steel plate provided spaced apart from each other, and a viscoelastic body provided between the first steel plate and the second steel plate,
The first steel plate is fixed to the front and back surfaces of the wood panel,
The second steel plate is joined to either the upper mounting steel member or the lower mounting steel member.
The other of the upper mounting steel member and the lower mounting steel member is fixed to the front and back surfaces of the wooden panel .
The upper mounting steel member and the lower mounting steel member are provided with a vertical steel plate sandwiching the viscoelastic damper, and the first steel plate is joined to the vertical steel plate.
A wooden vibration-damping wall characterized in that the surface of the vertical steel plate and the front and back surfaces of the wooden panel are bonded together using a structural adhesive . The first steel plate is joined to the vertical steel plate by the structural adhesive,
The second steel plate is joined to one of the upper mounting steel members and the lower mounting steel members by the structural adhesive.
The other of the upper mounting steel member and the lower mounting steel member is provided with a second vertical steel plate portion extending toward the wood panel, and the surface of the second vertical steel plate portion is joined to the front and back surfaces of the wood panel by the structural adhesive, characterized in that the wood vibration damping wall according to claim 1. A wooden vibration-damping wall that combines wooden panels and viscoelastic dampers,
Upper mounting steel members fixed to the upper beam,
Lower mounting steel members fixed to the lower beam or foundation,
The wooden panel that forms the wall surface,
The viscoelastic damper comprises a first steel plate and a second steel plate provided spaced apart from each other, and a viscoelastic body provided between the first steel plate and the second steel plate,
The first steel plate is fixed to the front and back surfaces of the wood panel,
The second steel plate is joined to either the upper mounting steel member or the lower mounting steel member.
The other of the upper mounting steel member and the lower mounting steel member is fixed to the front and back surfaces of the wooden panel.
A wooden vibration-damping wall characterized in that one of the upper mounting steel member and the lower mounting steel member is provided with a first vertical steel plate portion that extends in a vertical plane toward the wooden panel, a viscoelastic damper is provided between the first vertical steel plate portion and the wooden panel, the surface of the first vertical steel plate portion and the second steel plate are joined, and the first steel plate is joined to the front and back surfaces of the wooden panel with a structural adhesive.