JP4262400B2 - Vibration control device - Google Patents

Vibration control device Download PDF

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Publication number
JP4262400B2
JP4262400B2 JP2000254517A JP2000254517A JP4262400B2 JP 4262400 B2 JP4262400 B2 JP 4262400B2 JP 2000254517 A JP2000254517 A JP 2000254517A JP 2000254517 A JP2000254517 A JP 2000254517A JP 4262400 B2 JP4262400 B2 JP 4262400B2
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Japan
Prior art keywords
transmission member
damper
space
hydraulic
wall
Prior art date
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Expired - Fee Related
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JP2000254517A
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Japanese (ja)
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JP2002070356A (en
Inventor
亮 松野
敏治 前田
純二 橋本
洋平 片山
和孝 末藤
寛 筑間
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Hitachi Ltd
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Hitachi Ltd
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Publication of JP2002070356A publication Critical patent/JP2002070356A/en
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  • Load-Bearing And Curtain Walls (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は制振装置に係り、特に構造物の振動エネルギを吸収するダンパが筋交いを有する壁内に取り付けられるよう構成された制振装置に関する。
【0002】
【従来の技術】
ビルや住宅等の構造物の耐震性を高める手段として、油圧ダンパを上部伝達部材と下部伝達部材との間に介在させてなる制振装置が開発されつつある。
【0003】
この制振装置では、梁に固定される上部伝達部材と床等の基礎に固定される下部伝達部材との間に油圧ダンパが取り付けられており、油圧ダンパのシリンダ端部及びピストンロッド端部が水平方向の振動を伝える上部伝達部材又は下部伝達部材に連結されている。
【0004】
【発明が解決しようとする課題】
上記のような制振装置では、一般の木造住宅に取り付ける場合、油圧ダンパを複数の個所に設置する必要があるが、ドアや窓を除いた壁部に取り付けることになる。ところが、一般の木造住宅では、地震に耐えるだけの強度を持たせるため、筋交い(ブレース)が設けられた耐力壁を所定の割合で設けることが義務付けられているので、油圧ダンパが取付可能な壁面が限られていた。
【0005】
そのため、住宅のドアや窓、さらに耐力壁を除く壁面に油圧ダンパを取り付けなければならないので、油圧ダンパの設置可能な壁面が足りず十分な制震効果が得られないおそれがあった。
【0006】
さらに、耐力壁に油圧ダンパを有する制振装置を取り付ける場合、壁面状空間に対して油圧ダンパが最も厚さ方向のスペースを必要としており、他の部材の厚さ寸法も油圧ダンパの外径寸法に合わせて設定される。しかも、壁面状空間内には、対角方向に配置される筋交いが設けられており、油圧ダンパを筋交いと交差しない位置に配置しなければならないので、油圧ダンパの長さに壁面状空間の中央に配置することが難しい。そのため、従来の制振装置では、油圧ダンパを筋交いの無いスペースに取付けることになるので、油圧ダンパの取付位置が筋交いによって制約されてしまい、十分な減衰性能が得られなかったり、バランスの悪い位置に取り付ける場合が多いという問題があった。
【0007】
そこで、本発明は上記課題を解決した制振装置を提供することを目的とする。
【0008】
【課題を解決するための手段】
上記課題を解決するため、本発明は以下のような特徴を有する。
【0009】
本発明は、壁面状空間内に少なくとも上下2段にわけて筋交いを設け、少なくとも上下2段の筋交いの上段と下段との間に前記ダンパを設けることにより、ダンパを筋交いと交差しないように配置させることが可能になると共に、筋交いがダンパを避けるように取り付けられるため、ダンパの取付位置を優先させて筋交いの取付位置を決めることができる。
【0010】
【発明の実施の形態】
以下、添付図面を参照して本発明の実施の形態を詳細に説明する。
【0011】
図1は本発明になる制振装置の第1実施例を示す正面図である。また、図2は図1中A−A線に沿う縦断面図である。
【0012】
図1及び図2に示されるように、制振装置10は、例えば木造の一般住宅用建物等の耐力壁11に第1、第2の油圧ダンパ36,38を組み込む構成となっている。この第1、第2の油圧ダンパ36,38は、1階床と2階床との間に起立された柱14と、1階床に支持されるように横架された下梁16(基礎)と、2階床を支持するように横架された上梁18とにより形成された長方形の壁面状空間20の空いたスペースに取り付けられている。
【0013】
耐力壁11の壁面状空間20内には、上記第1、第2の油圧ダンパ36,38の他に下梁16に固定される下部伝達部材22と、上梁18に固定される上部伝達部材24とが設けられており、第1、第2の油圧ダンパ36,38は下部伝達部材22と上部伝達部材24との間の相対変位を吸収するように取り付けられる。
【0014】
また、壁面状空間20内の中間位置には、中梁26が横架されている。この中梁26は、壁面状空間20内の1/2の高さ位置に設けられている。そして、下梁16、上梁18、中梁26の両端角部には、上下方向に延在するブラケット30〜30が固定されている。尚、上記柱14、下梁16、上梁18、中梁26、下部伝達部材22、上部伝達部材24は、Cチャンネルと呼ばれる断面がC字状に曲げ加工された鉄材が使用されている。
【0015】
また、下部伝達部材22は、下梁16から垂直方向に延在する垂直部22と、下梁16及び垂直部22に対して傾斜されて両部材間を連結する傾斜部22と、垂直部22と傾斜部22との間に形成された三角形の空間内に設けられた連結部22〜22とを組み合わせたトラス構造である。また、上部伝達部材24も上記下部伝達部材22と同様に、上梁18から垂下方向に延在する垂下部24と、上梁18及び垂下部24に対して傾斜されて両部材間を連結する傾斜部24と、垂下部24と傾斜部24との間に形成された三角形の空間内に設けられた連結部24〜24とを組み合わせたトラス構造である。
【0016】
各ブラケット30〜30の間には、複数の筋交い32〜32が所定角度傾斜した状態で連結されている。また、筋交い32〜32は、夫々X字状に交差された一対ずつの組で上下2段になっており、下段の筋交い32,32、上段の筋交い32,32の互いに交差する中間部分が連結ピン34により連結されている。
【0017】
そして、下部伝達部材22の垂直部22と、上部伝達部材24の垂下部24との間には、水平方向の振動エネルギを吸収して振動を減衰させる第1、第2の油圧ダンパ36,38が横架されている。また、下部伝達部材22の垂直部22上端側面にはダンパ支持部22,22が取り付けられおり、上部伝達部材24の下端側面にはダンパ支持部24,24が取り付けられている。
【0018】
第1の油圧ダンパ36は、シリンダ36aとピストンロッド36bとを有し、シリンダ36aの端部に設けられたアイ部36cがダンパ支持部24に連結され、ピストンロッド36bの端部に設けられたアイ部36dがダンパ支持部22に連結されている。従って、油圧ダンパ36は、ダンパ支持部22,24との間で壁面状空間20の平面と平行なC方向の振動を減衰するように取り付けられている。
【0019】
第2の油圧ダンパ38は、シリンダ38aとピストンロッド38bとを有し、シリンダ38aの端部に設けられたアイ部38cがダンパ支持部22に連結され、ピストンロッド38bの端部に設けられたアイ部38dがダンパ支持部24に連結されている。従って、油圧ダンパ38は、ダンパ支持部22,24との間で壁面状空間20の平面と平行なC方向の振動を減衰するように取り付けられている。
【0020】
第1の油圧ダンパ36は、中梁26の下方に配置され、第2の油圧ダンパ38は、中梁26の上方に配置されている。従って、第1の油圧ダンパ36は、下段の筋交い32,32と中梁26との間に配置され、第2の油圧ダンパ38は、上段の筋交い32,32と中梁26との間に配置されている。
【0021】
すなわち、第1、第2の油圧ダンパ36,38は、壁面状空間20内の中央に配置されているので、下部伝達部材22、上部伝達部材24の先端間で減衰動作できるので、制振動作時のピストンストロークが確保されており、耐力壁11の制振性能が高められている。よって、制振装置10では、第1、第2の油圧ダンパ36,38の取付位置が優先して決められており、筋交い32〜32が第1、第2の油圧ダンパ36,38を避けるように空いている空間に設けられている。
【0022】
図3は本発明になる制振装置の第2実施例を示す正面図である。また、図4は図3中B−B線に沿う縦断面図である。尚、図3及び図4において、上記図1及び図2と同一部分には同一符号を付してその説明は省略する。
【0023】
図3及び図4に示されるように、第2実施例の制振装置40は、壁面状空間20内に下部伝達部材22、上部伝達部材24、中梁26,28が横架されている。第1の中梁26は、壁面状空間20内の1/3の高さ位置に設けられ、第2の中梁28は壁面状空間20内の2/3の高さ位置に設けられている。そして、下梁16、上梁18、中梁26,28の両端には、上下方向に延在するブラケット41〜44が固定されている。
【0024】
各ブラケット44〜44の間には、複数の筋交い42〜42が所定角度傾斜した状態で連結されている。また、筋交い42〜42は、夫々X字状に交差された一対ずつの組で上下3段になっており、下段の筋交い42,42、中段の筋交い42,42、上段の筋交い42,42の互いに交差する中間部分が連結ピン34により回動可能に連結されている。
【0025】
第1、第2の油圧ダンパ36,38は、中梁26と28との間に形成された空間46内に取り付けられており、第1の油圧ダンパ36は中梁26と中段の筋交い42,42との間に形成された三角形の空間46aに配置され、第2の油圧ダンパ38は中梁28と中段の筋交い42,42との間に形成された三角形の空間46bに配置されている。
【0026】
すなわち、第1、第2の油圧ダンパ36,38は、壁面状空間20内の中梁26と28との間に形成された中央の空間46に配置されているので、下部伝達部材22、上部伝達部材24の先端間で減衰動作できるので、制振動作時のピストンストロークが確保されており、耐力壁11の制振性能が高められている。よって、制振装置40では、第1、第2の油圧ダンパ36,38の取付位置が優先して決められており、筋交い42〜42が第1、第2の油圧ダンパ36,38を避けるように空いている空間に設けられている。
【0027】
尚、上記実施の形態では、筋交いをX字状で2または3段のものを示したが、これに限らず、4段以上の筋交いでもよく、また、筋交いを例えば図1において、32と32との組合せや、32と32との組合せのみとし、各段の筋交いを1本のみとしてもよい。
【0028】
また、前記実施の形態では、上下部伝達部材として鉄材を組み合わせた構成のものを一例として示したが、木材、樹脂、金属等の三角や四角形のパネルであってもよい。
【0029】
また、上記実施の形態では、一対の油圧ダンパ36,38を配置させる構成を一例として挙げたが、これに限らず、例えば、1台の油圧ダンパを設ける構成としても良いし、あるいは3台以上の油圧ダンパを配置させる構成の制振装置にも適用できるのは勿論である。
【0030】
【発明の効果】
以上説明したように、本発明によれば、壁面状空間内に少なくとも上下2段にわけて筋交いを設け、少なくとも上下2段の筋交いの上段と下段との間に前記ダンパを設けることにより、ダンパを筋交いと交差しないように配置させることが可能になると共に、筋交いがダンパを避けるように取り付けられるため、ダンパの取付位置を優先させて筋交いの取付位置を決めることができる。よって、ピストンストロークを充分に確保できる位置にダンパを取り付けることができ、耐力壁の制振性能を高めることができる。
【図面の簡単な説明】
【図1】本発明になる制振装置の第1実施例を示す正面図である。
【図2】図1中A−A線に沿う縦断面図である。
【図3】本発明になる制振装置の第2実施例を示す正面図である。
【図4】図3中B−B線に沿う縦断面図である。
【符号の説明】
10,40 制振装置
11 耐力壁
14 柱
16 下梁
18 上梁
20 壁面状空間
22 下部伝達部材
24 上部伝達部材
26,28 中梁
30〜30,44〜44 ブラケット
32〜32,421〜42 筋交い
36,38 油圧ダンパ
46、46a,46b 空間
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vibration damping device, and more particularly, to a vibration damping device configured such that a damper that absorbs vibration energy of a structure is attached to a wall having a brace.
[0002]
[Prior art]
As means for improving the earthquake resistance of structures such as buildings and houses, vibration control devices are being developed in which a hydraulic damper is interposed between an upper transmission member and a lower transmission member.
[0003]
In this vibration damping device, a hydraulic damper is attached between an upper transmission member fixed to a beam and a lower transmission member fixed to a foundation such as a floor, and a cylinder end and a piston rod end of the hydraulic damper are connected to each other. It is connected to an upper transmission member or a lower transmission member that transmits horizontal vibration.
[0004]
[Problems to be solved by the invention]
In the vibration damping device as described above, when it is attached to a general wooden house, it is necessary to install hydraulic dampers at a plurality of locations, but it is attached to a wall portion excluding doors and windows. However, in general wooden houses, in order to have enough strength to withstand earthquakes, it is obliged to install a bearing wall with braces (braces) at a certain ratio, so the wall surface on which a hydraulic damper can be attached Was limited.
[0005]
For this reason, the hydraulic dampers must be attached to the wall surfaces excluding the doors and windows of the house and the load-bearing wall, and there is a fear that sufficient vibration control effects cannot be obtained due to insufficient wall surfaces on which the hydraulic dampers can be installed.
[0006]
Furthermore, when installing a damping device with a hydraulic damper on the bearing wall, the hydraulic damper requires the most space in the thickness direction relative to the wall surface space, and the thickness dimensions of the other members are also the outer diameter dimensions of the hydraulic damper. It is set according to. In addition, the wall-like space is provided with braces arranged diagonally, and the hydraulic dampers must be arranged at positions that do not intersect with the braces, so the length of the hydraulic dampers depends on the center of the wall-like space. Difficult to place in. For this reason, in the conventional vibration damping device, the hydraulic damper is installed in a space where there is no bracing, so the mounting position of the hydraulic damper is limited by the bracing, and sufficient damping performance cannot be obtained or the position is not balanced. There was a problem that it was often attached to.
[0007]
Accordingly, an object of the present invention is to provide a vibration damping device that solves the above-described problems.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, the present invention has the following features.
[0009]
The present invention provides a brace that does not cross the brace by providing a brace at least in two upper and lower stages in the wall-like space and providing the damper between the upper and lower stages of at least two upper and lower braces. Since the bracing is attached so as to avoid the damper, the attachment position of the bracing can be determined by giving priority to the attachment position of the damper.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0011]
FIG. 1 is a front view showing a first embodiment of a vibration damping device according to the present invention. 2 is a longitudinal sectional view taken along the line AA in FIG.
[0012]
As shown in FIGS. 1 and 2, the vibration damping device 10 is configured to incorporate first and second hydraulic dampers 36 and 38 into a load-bearing wall 11 such as a wooden general residential building. The first and second hydraulic dampers 36 and 38 include a column 14 standing between the first floor and the second floor, and a lower beam 16 (foundation) horizontally supported so as to be supported by the first floor. ) And an upper beam 18 laid horizontally so as to support the second-floor floor.
[0013]
In addition to the first and second hydraulic dampers 36 and 38, the lower transmission member 22 fixed to the lower beam 16 and the upper transmission member fixed to the upper beam 18 are provided in the wall-like space 20 of the bearing wall 11. 24, and the first and second hydraulic dampers 36 and 38 are attached so as to absorb relative displacement between the lower transmission member 22 and the upper transmission member 24.
[0014]
Further, an intermediate beam 26 is laid horizontally at an intermediate position in the wall surface space 20. The intermediate beam 26 is provided at a half height position in the wall surface space 20. The lower beam 16, the both end corner portions of the upper beam 18, the center sills 26, the bracket 30 1 to 30 8 extending in the vertical direction is fixed. The column 14, the lower beam 16, the upper beam 18, the middle beam 26, the lower transmission member 22, and the upper transmission member 24 are made of an iron material called a C channel whose cross section is bent into a C shape.
[0015]
The lower transmission member 22 includes a vertical portion 22 1 extending from the lower beam 16 in the vertical direction, the inclined portion 22 2 for connecting the two members are inclined relative to the lower beam 16 and a vertical portion 22 1, a truss structure combining a connecting portion 22 3-22 5 provided in the space formed triangle between the vertical portion 22 1 and the inclined portion 22 2. Similarly, the upper transmission member 24 and the lower transmitting member 22, the hanging portion 24 1 extending from the upper beam 18 in the hanging direction, between being inclined relative to the upper beam 18 and the hanging portion 24 1 both members an inclined portion 24 2 for connecting a truss structure combining a connecting portion 24 3-24 5 provided in the space formed triangle between the hanging portion 24 1 and the inclined portion 24 2.
[0016]
Between each bracket 30 1 to 30 8, more braces 321 to 323 4 are connected in a state of being inclined at a predetermined angle. Further, braces 321 to 323 4 are paired in two upper and lower stages of each pair are cross respectively X-shaped, lower braces 32 1, 32 2, upper brace 32 3, 32 4 of each other The intersecting intermediate portions are connected by connecting pins 34.
[0017]
Then, a vertical portion 22 1 of the lower transmitting member 22, between the hanging portion 24 1 of the upper transmission member 24, first, second hydraulic damper for attenuating vibrations and absorbing the horizontal vibration energy 36 , 38 are horizontally mounted. Further, the vertical portion 22 1 upper side surface of the lower transmitting member 22 the damper support 22 6, 22 7 and is attached to the lower end side of the upper transmission member 24 has a damper supporting section 24 6, 24 7 is attached .
[0018]
First hydraulic damper 36 includes a cylinder 36a and a piston rod 36b, the eye portion 36c provided at an end portion of the cylinder 36a is connected to the damper support 24 6, provided at the end of the piston rod 36b eye portion 36d is connected to the damper support 22 6. Accordingly, the hydraulic damper 36 is attached so as to attenuate the vibration in the C direction parallel to the plane of the wall surface space 20 between the damper support portions 22 6 and 24 6 .
[0019]
Second hydraulic damper 38 includes a cylinder 38a and a piston rod 38b, the eye portion 38c provided at an end portion of the cylinder 38a is connected to the damper support 22 7, provided at the end of the piston rod 38b eye portion 38d is connected to the damper support 24 7. Thus, the hydraulic damper 38 is mounted so as to damp vibration parallel C direction and the plane of the wall-shaped space 20 between the damper support 22 7, 24 7.
[0020]
The first hydraulic damper 36 is disposed below the middle beam 26, and the second hydraulic damper 38 is disposed above the middle beam 26. Therefore, the first hydraulic damper 36 is disposed between the lower brace 32 1, 32 2 and center sills 26, the second hydraulic damper 38 includes an upper bracing 32 3, 32 4 and center sill 26 It is arranged between.
[0021]
That is, since the first and second hydraulic dampers 36 and 38 are disposed at the center in the wall surface space 20, the damping operation can be performed between the tips of the lower transmission member 22 and the upper transmission member 24. The piston stroke at the time is secured, and the vibration damping performance of the bearing wall 11 is enhanced. Thus, the damping device 10, first, has been determined in the mounting position takes precedence of the second hydraulic dampers 36 and 38, brace 32 1-32 4 first, the second hydraulic dampers 36 and 38 It is provided in a vacant space to avoid.
[0022]
FIG. 3 is a front view showing a second embodiment of the vibration damping device according to the present invention. 4 is a longitudinal sectional view taken along line BB in FIG. 3 and FIG. 4, the same parts as those in FIG. 1 and FIG.
[0023]
As shown in FIGS. 3 and 4, in the vibration damping device 40 of the second embodiment, the lower transmission member 22, the upper transmission member 24, and the middle beams 26 and 28 are horizontally mounted in the wall surface space 20. The first middle beam 26 is provided at a 1/3 height position in the wall surface space 20, and the second middle beam 28 is provided at a 2/3 height position in the wall surface space 20. . The lower beam 16, both ends of the upper beam 18, the center sills 26 and 28, the bracket 41 1-44 8 extending in the vertical direction is fixed.
[0024]
Between each bracket 44 1-44 8, a plurality of braces 42 1-42 6 are connected in a state of being inclined at a predetermined angle. Further, it braces 42 1-42 6 are paired with three vertical stages of each pair are cross respectively X-shaped, the lower brace 42 1, 42 2, middle brace 42 3, 42 4, upper is pivotally connected by a brace 42 5, 42 middle portion connecting pin 34 which intersect each other 6.
[0025]
First, second hydraulic dampers 36 and 38 is mounted in a space 46 formed between the center sill 26 and 28, the first hydraulic damper 36 center sill 26 and the middle of the braces 42 3 , is disposed in the space 46a of the triangle formed between the 42 4, the second hydraulic damper 38 is disposed in the space 46b of the triangle formed between the center sill 28 and the middle of the braces 42 3, 42 4 Has been.
[0026]
That is, since the first and second hydraulic dampers 36 and 38 are disposed in the central space 46 formed between the middle beams 26 and 28 in the wall surface-like space 20, the lower transmission member 22, the upper part Since the damping operation can be performed between the distal ends of the transmission member 24, the piston stroke during the damping operation is ensured, and the damping performance of the bearing wall 11 is enhanced. Thus, the damping device 40, first, and the mounting position are determined by priority of the second hydraulic dampers 36 and 38, brace 42 1-42 6 first, a second hydraulic dampers 36 and 38 It is provided in a vacant space to avoid.
[0027]
In the above-described embodiment, the bracing is X-shaped and has two or three stages. However, the bracing is not limited to this, and may be four or more stages. For example, the bracing is represented by 32 1 in FIG. It is also possible to use only a combination of 32 3 or 32 1 and 32 4 and only one bracing at each stage.
[0028]
Moreover, in the said embodiment, although the thing of the structure which combined the iron material as an up-and-down part transmission member was shown as an example, a triangular or square panel, such as a timber, resin, a metal, may be sufficient.
[0029]
Moreover, in the said embodiment, although the structure which arrange | positions a pair of hydraulic dampers 36 and 38 was mentioned as an example, it is not restricted to this, For example, it is good also as a structure which provides one hydraulic damper, or three or more units | sets. Of course, the present invention can also be applied to a vibration damping device having a configuration in which the hydraulic damper is arranged.
[0030]
【The invention's effect】
As described above, according to the present invention, a brace is provided in at least two upper and lower stages in the wall surface space, and the damper is provided between the upper and lower stages of at least two upper and lower braces. Can be arranged so as not to intersect with the brace, and the brace is attached so as to avoid the damper. Therefore, the attachment position of the brace can be determined by giving priority to the attachment position of the damper. Therefore, the damper can be attached at a position where a sufficient piston stroke can be secured, and the vibration damping performance of the bearing wall can be enhanced.
[Brief description of the drawings]
FIG. 1 is a front view showing a first embodiment of a vibration damping device according to the present invention;
FIG. 2 is a longitudinal sectional view taken along line AA in FIG.
FIG. 3 is a front view showing a second embodiment of the vibration damping device according to the present invention.
4 is a longitudinal sectional view taken along line BB in FIG. 3. FIG.
[Explanation of symbols]
10,40 damping device 11 bearing wall 14 Column 16 lower beam 18 on the beam 20 wall in shaped space 22 lower transmission member 24 the upper transmission member 26, 28 the beams 30 1 to 30 8, 44 1 to 44 8 bracket 321 to 323 6 , 421-42 6 bracing 36, 38 Hydraulic dampers 46, 46a, 46b Space

Claims (1)

構造物の柱、上梁、下梁から形成される垂直な壁面状空間に設けられ、前記上梁からの該壁面状空間と平行な水平方向の振動を伝える上部伝達部材と、
前記壁面状空間に設けられ、前記下梁からの該壁面状空間と平行な水平方向の振動を伝える下部伝達部材と、
前記上部伝達部材と前記下部伝達部材との間に設けられたダンパと、
前記構造物の柱または梁に結合される筋交いと、
を有する制振装置において、
前記壁面状空間内に少なくとも上下2段にわけて筋交いを設け、
前記少なくとも上下2段の筋交いの上段と下段との間に前記ダンパを設けたことを特徴とする制振装置。
An upper transmission member that is provided in a vertical wall-like space formed from a pillar, an upper beam, and a lower beam of a structure, and that transmits horizontal vibration parallel to the wall-like space from the upper beam ;
A lower transmission member that is provided in the wall surface space and transmits a horizontal vibration from the lower beam parallel to the wall surface space;
A damper provided between the upper transmission member and the lower transmission member;
A brace coupled to a column or beam of the structure;
In a vibration control device having
In the wall surface space, a brace is provided in at least two stages,
A vibration damping device, wherein the damper is provided between an upper stage and a lower stage of at least two upper and lower braces.
JP2000254517A 2000-08-24 2000-08-24 Vibration control device Expired - Fee Related JP4262400B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000254517A JP4262400B2 (en) 2000-08-24 2000-08-24 Vibration control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000254517A JP4262400B2 (en) 2000-08-24 2000-08-24 Vibration control device

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JP4262400B2 true JP4262400B2 (en) 2009-05-13

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Publication number Priority date Publication date Assignee Title
JP4958096B2 (en) * 2006-06-13 2012-06-20 義彰 渡部 Seismic steel frame for wooden

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