JP2005127030A - Vibration control wall structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration control wall structure efficiently obtaining the damping effect by making good use of a visco-elastic material and having good attachment workability. <P>SOLUTION: The vibration control wall structure 10 is constituted of two column members 11 adjacent to each other, two up and down beams 12 and 13 constructed between both of them, a thick plate-like rigid plate 15 provided to a plane of structure formed of the column members and the beams and a plurality of vibration control members 21 supported by elastically connecting the rigid plate to the column members and the beams on positions on the up and down end sides of both right and left side edges of the rigid plate. Each vibration control member combined with a horizontal plate section 23 and a vertical plate section 24 vertically mounted thereto is equipped with an approximately T-shaped mounting metal fitting 22, a pair of visco-elastic material layers 25 cohesively fixed to both faces of the vertical plate section, and a supporting plate member 26 adhered to the visco-elastic material layers and projected in the opposite direction of the vertical plate section. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a frame formed by a pair of pillar members and beams arranged in parallel and facing each other, a plate-like rigid body such as a plate material arranged in a plane surrounded by the frame, a frame, The present invention relates to a vibration control wall structure including a vibration control member that connects a rigid body side edge portion in a shearable state.

Conventionally, as this type of damping wall structure, as shown in Patent Document 1, for example, it is formed by two adjacent columns, two upper and lower beams bridged between them, and the columns and beams. And a viscoelastic body forming a vibration damping member interposed between the support member and the plate material, and a support member for supporting the plate material on the pillar and the beam. Are known. The viscoelastic body is provided in the middle portion in the longitudinal direction at each of the four edges of the plate. Further, the support member is made of a pair of L-shaped steel materials, and one plate portion forming the L shape is bonded to the plate material by a viscoelastic body, and the other plate portion is fixed to the column and the beam by well-known means such as bolts, respectively. It has come to be. According to this seismic control wall structure, when vibration is input to a building such as a house due to an earthquake or the like, the upper and lower beams are displaced between layers to shear and deform in the horizontal direction of the construction surface, and the plate material rotates in the vertical direction. At this time, since the viscoelastic body interposed between the support member and the plate member provided on the pillar and the beam undergoes hysteresis deformation in the shearing direction and absorbs vibration energy, vibration can be attenuated.
Japanese Patent Laid-Open No. 2002-309798 (2nd page, FIG. 1 and FIG. 2)

  By the way, in the case of ordinary houses, the openings surrounded by columns and beams tend to be vertically long, and the columns are in a frame shape that easily buckles. A plate-like rigid body attached through the body rotates and tries to deform vertically. In this case, the viscoelastic bodies provided above and below the rigid body are hardly deformed, and on the contrary, the rotation of the rigid body is hindered. Moreover, when the viscoelastic body is provided in the middle or in the longitudinal direction of the rigid body as in the above-described conventional example, the shear deformation per unit volume of the viscoelastic body is small, and the damping efficiency by the viscoelastic body is insufficient. . For this reason, it is necessary to lengthen the arrangement length of the damping member, but this deteriorates the workability of assembling the damping wall structure, increases the assembling cost, and increases the cost of the damping member. In addition, the support member is one in which the L-shaped plate portion is bonded to the plate material by a viscoelastic body. When bonding and fixing on the spot, positioning is not easy and the mounting work is large, and further support is required. The trouble of removing the members is also complicated.

  The present invention is intended to solve the above-described problems, and an object of the present invention is to provide a vibration-damping wall structure in which a viscoelastic body is not wasted, a vibration-damping effect is efficiently obtained, and the assembly workability is good. .

  In order to achieve the above object, the structural features of the present invention include a pair of column members arranged in parallel and facing each other, and a plate-like shape arranged in a plane extending between the pair of column members. A rigid body, and a damping member having a viscoelastic body that is disposed in a state capable of shear deformation between a pair of column members and both side edge portions of the rigid body facing the pair of column members and coupled to each other. In the damping wall structure, the damping members are respectively disposed at least at both ends in the longitudinal direction of the side edge of the rigid body.

  In the present invention configured as described above, between a pair of pillar members arranged in parallel and facing each other and both side edges of a plate-like rigid body arranged in a plane extending therebetween, Since the vibration control members are respectively disposed at least at both ends in the longitudinal direction of the edge of the rigid body, more vibration control members are provided for the vibration control members than when the vibration control members are disposed in the center. Deformation can be added. Furthermore, in a house, the vibration input can be more efficiently damped if the damping member is provided on the column member. In addition, since it is not necessary to lengthen the installation length of the damping member, the workability of assembling the damping wall structure is improved and the installation cost is reduced, and the cost of the damping member is also reduced. Is done. The longitudinal direction here means not the thickness direction of the plate-like rigid body side but the extending direction.

  Moreover, in the said damping wall structure, the damping member may be provided in three or more places including the longitudinal direction center part of the side edge part of a rigid body. As described above, since the vibration damping members are arranged at a plurality of locations on the side edge portion including the middle portion in addition to the both end sides, the vibration damping effect by the viscoelastic body is further enhanced and the rigidity of the column member itself is increased. Can also be enhanced.

  Moreover, in the said damping wall structure, you may have a space part in which the damping member is not provided in the up-down direction of a rigid body. As a result, even if the pair of column members is vertically long like a general house, when the pair of column members are sheared and deformed by vibration input, there is no upper and lower vibration control members, and there is a space portion. The plate-like rigid body attached to the member via the vibration control members on both sides can be easily rotated in the vertical direction. Furthermore, since it is not necessary to provide a damping member above and below the rigid body, the cost is further reduced.

  Further, in the above-described vibration control wall structure, the vibration control member has a support plate member fixed to the viscoelastic body, and can be detachably fixed to the rigid body by the support plate member. Here, as a procedure for detachably fixing the vibration control member to the rigid body, for example, the support plate member and the rigid body can be fastened and fixed directly using a detachable means such as a bolt. Thereby, since the damping member can be attached later, it is possible to cope with any arrangement pattern, the assembling property of the damping wall structure on the site is improved, and the assembling cost is reduced. Moreover, the removed damping member can be reused.

  Further, in the above-described vibration control wall structure, the vibration control member includes a horizontal plate portion attached to the column member and a vertical plate portion integrally attached to the horizontal plate portion so as to be substantially T-shaped. A pair of viscoelastic layers bonded and fixed to both surfaces of the vertical plate portion, and a pair that is bonded to the pair of viscoelastic layers and supports the rigid body by protruding in the opposite direction of the vertical plate portion and sandwiching the rigid body The support plate member may be used. Thereby, the attachment of the damping member to the column member is easily performed by the fixture, and the assembly of the rigid body is also facilitated. Therefore, the workability of assembling the damping wall structure at the site is improved, and the assembling cost is reduced. Moreover, the removed damping member can be reused.

  Further, in the above-described vibration control wall structure, the support plate member may have positioning means provided on its inner surface so as to contact the rigid body. By restraining the rigid body by the positioning means provided on the inner surface of the support plate member in this way, even if there is play such as fixing with the mounting hole and the bolt, slight deformation of the column member is not affected by play. This can be efficiently transmitted to the viscoelastic body.

  In the present invention, in the damping wall structure, since the damping member is provided on both ends in the longitudinal direction of the rigid body, the damping action by the viscoelastic body of the damping member is sufficiently exhibited. Furthermore, since it is not necessary to lengthen the installation length of the damping member, the workability of assembling the damping wall structure is improved, the assembling cost is reduced, and the material cost is also reduced. Moreover, the installation cost and member cost are reduced by not providing the damping member on the upper and lower edge portions of the rigid body. In addition, since the damping member is detachably fixed to the rigid body, the damping member can be freely attached later, so that it can be applied to any arrangement pattern and is easy to install on the site of the damping wall structure. And the assembly cost is reduced. Moreover, according to this damping wall structure, the removed damping member can be reused and resources can be used effectively. Furthermore, even a slight deformation of the column member can be efficiently transmitted to the viscoelastic body, and the vibration control effect is exhibited well.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 and 2 schematically show a damping wall structure according to the embodiment in a front view and a partial cross-sectional view in the II-II line direction. The damping wall structure 10 is formed by two column members 11 erected adjacent to each other, two upper and lower beams 12 and 13 bridged between them, and the column member 11 and the beams 12 and 13. A rigid body 15 having a rectangular and thick plate shape provided on the construction surface, and a vibration control member 21 for elastically connecting and supporting the rigid body 15 to the column member 11 and the beams 12 and 13.

  The vibration control member 21 is made of a metal or resin-made fixture 22 having a substantially T shape, a pair of viscoelastic layers 25 bonded and fixed to both surfaces of the vertical plate portion 24, and both viscoelastic layers. 25 and a support plate member 26 protruding in the opposite direction of the vertical plate portion 24. The fixture 22 integrally has a horizontal plate portion 23 and a vertical plate portion 24 attached perpendicularly thereto, and the horizontal plate portion 23 has a fixture such as a bolt on the opposing surfaces of the pair of column members 11. It is attached using an adhesive or the like. A viscoelastic layer 25 is bonded and formed on both surfaces of the vertical plate portion 24 on the front end side. The total thickness of the vertical plate portion 24 and the pair of viscoelastic body layers 25 sandwiching the vertical plate portion 24 is substantially equal to the thickness of the rigid body 15.

  Further, a pair of support plate members 26 are bonded and fixed to the surface side of the pair of viscoelastic body layers 25 with both the viscoelastic body layers 25 sandwiched therebetween, and slightly protrude from the tip of the vertical plate portion 24. . A gap is formed between the protruding portions of the two support plate members 26. On the inner surface of the support plate member 26, a convex portion 27 is provided as a positioning means for the rigid body 15 so as to come into contact with the rigid body 15.

  An attachment hole (not shown) is provided in a protruding portion of the support plate member 26 from the vertical plate portion 24, and a fixture 28 made of a bolt and nut is inserted into the attachment hole. Then, the four vibration control members 21 are attached to the two upper and lower portions of the opposing surfaces of the pair of column members 11 with the horizontal plate portion 23 in a state of facing each other. By inserting the rigid body 15 into the gap between each pair of support plate members 26 of the four damping members 21, the four damping members 21 are disposed on the upper and lower ends of both side edges of the rigid body 15. By tightening with the tool 28, the rigid body 15 is supported by the column member 11 by the vibration control member 21. On the other hand, the vibration control member 21 is not provided between the rigid body 15 and the beams 12 and 13, and a space is formed between the two.

  In the embodiment having the above-described configuration, the rectangular thick plate-like rigid body 15 arranged in the plane surrounded by the pair of column members 11 and the beams 12 and 13 arranged in parallel and opposite to each other is the rigid body 15. It is connected to the column member 11 by a vibration control member 21 disposed on both ends (upper and lower ends) in the longitudinal direction of the left and right side edges. For this reason, when the frame composed of the vertically long column member 11 and the beams 12 and 13 receives a vibration input and undergoes shear deformation, the frame does not have the viscoelastic body of the frame on the beam 12 and 13 side. On the other hand, the plate-like rigid body 15 attached via the vibration control members 21 at both side edges can be easily rotated in the vertical direction. Furthermore, since the viscoelastic body layer 25 is provided on both ends in the longitudinal direction of the rigid body 15, the vibration control wall structure 10 sufficiently exhibits the vibration control effect of the viscoelastic body layer 25. As a result, this damping wall structure 10 can attenuate the vibration input efficiently.

  Moreover, since it is not necessary to provide the damping member 21 on the upper and lower edge portions of the rigid body 15, the cost for assembling the damping member 21 and the member cost are reduced. Furthermore, since it is not necessary to lengthen the arrangement length of the damping member 21, the workability of assembling the damping wall structure 10 is improved, the assembling cost is reduced, and the price of the damping member 21 is also reduced. Made cheaper. In addition, since the vibration control member 21 is detachably fixed to the rigid body 15, the vibration control member 21 can be attached later, the assembling property of the vibration control wall structure 10 in the field is improved, and the assembly cost is reduced. Made cheaper.

  Further, in the damping wall structure 10, the damping member 21 includes a fixture 22 having a substantially T shape, a pair of viscoelastic body layers 25 bonded and fixed to both surfaces of the vertical plate portion, and a viscoelastic body layer. Since the support plate member 26 is bonded to the protrusion 25 and is projected, the attachment to the column member 11 is easy, and the rigid body 15 is also easily supported. Assembling property is improved, and assembling cost is reduced. In addition, the damping member 21 removed from the damping wall structure 10 can be reused.

  Further, the protrusion 15 is provided on the inner surfaces of the pair of support plate members 26, whereby the rigid body 15 is tightly restrained by the support plate member 26. Therefore, even if there is play when the support plate member 26 is fixed by the mounting hole (not shown) and the fixture 28, the vibration control member 21 is not slightly affected by the play, and the column member 11 is slightly deformed. In contrast, this can be efficiently transmitted to the viscoelastic body layer 25.

  Next, as a modification of the above-described embodiment, as shown in FIG. 3, the vibration control member 21 is provided not only on the upper and lower sides of the side edge of the rigid body 15 but also in the middle position. As described above, since the vibration control member 21 is disposed not only at both ends of the rigid body 15 but also at the intermediate portion, the vibration damping effect by the vibration control member 21 is further enhanced and the rigidity of the column member 11 itself is also increased. It is done. In addition, about the arrangement | positioning position of the damping member 21, not only this but it is also possible to provide in the other location of the rigid body 15 side edge part.

  In addition, in the said Example, although the damping member 21 of the said structure is used, it supports not only this but a rigid body with a viscoelastic body using a pair of L-shaped steel materials as needed as needed. You may make it do. Moreover, in the damping member 21, the convex part 27 on the inner surface of the support plate member 26 can also be omitted as necessary. Furthermore, the attachment portion of the vibration control member 21 to the column member 11 and the rigid body 15 is not limited to the embodiment. Moreover, the structure where the viscoelastic body of the damping member 21 is directly fixed to the column member 11 is also possible. In this embodiment, a wall structure is formed with a frame formed by a pillar member and upper and lower beams, but instead, a wall structure in which the frame is formed by fixing the pillar member to a base or a plate. Also good. In addition, the damping wall structure shown in the above embodiment is merely an example, and various modifications can be made without departing from the gist of the present invention.

  The damping wall structure of the present invention is useful as a simple damping wall structure especially for ordinary houses because there is no waste of damping members, an efficient damping effect is obtained, and the assembly workability is good. is there.

It is a front view which shows roughly the damping wall structure which is one Example of this invention. It is a top view which shows the same damping wall structure. It is a front view which shows roughly the damping wall structure which is a modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Damping wall structure, 11 ... Column member, 12, 13 ... Beam, 15 ... Rigid body, 21 ... Damping member, 22 ... Attachment, 23 ... Horizontal plate part, 24 ... Vertical plate part, 25 ... Viscoelastic body Layer 26: Supporting plate member 27: Convex part (positioning means).

Claims (6)

A pair of column members arranged in parallel and opposite to each other, a plate-like rigid body arranged in a plane extending between the pair of column members, and both sides of the rigid body respectively facing the pair of column members A damping wall structure comprising a damping member having a viscoelastic body that is arranged in a state capable of shearing deformation between the edge portion and the pair of column members and connects between the two,
The seismic damping wall structure, wherein the seismic damping member is disposed on at least both longitudinal ends of the side edge of the rigid body. The said damping member is provided in three or more places including the longitudinal direction center part of the side edge part of the said rigid body, The damping wall structure of the said Claim 1 characterized by the above-mentioned. 3. The damping wall structure according to claim 1, wherein a space portion in which the damping member is not provided is provided in the vertical direction of the rigid body. The said damping member has a support plate member fixed to the said viscoelastic body, The said support plate member is detachably fixed to the said rigid body, The said Claim 1 to 3 characterized by the above-mentioned. Damping wall structure according to any one of the above. The vibration-damping member is a fixture formed in a substantially T shape by a horizontal plate portion attached to the column member and a vertical plate portion integrally attached to the horizontal plate portion, and the vertical plate portion A pair of viscoelastic layers bonded and fixed on both sides, and a pair of viscoelastic layers that are bonded to the pair of viscoelastic layers and that protrude in the opposite direction of the vertical plate portion to support the rigid body by sandwiching the rigid body The damping wall structure according to any one of claims 1 to 4, wherein the damping wall structure is configured by a support plate member. 6. The damping wall structure according to claim 5, wherein the support plate member has positioning means provided on its inner surface so as to contact the rigid body.

Images