JP3851542B2 - Structure damping device - Google Patents

Structure damping device Download PDF

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Publication number
JP3851542B2
JP3851542B2 JP2001333369A JP2001333369A JP3851542B2 JP 3851542 B2 JP3851542 B2 JP 3851542B2 JP 2001333369 A JP2001333369 A JP 2001333369A JP 2001333369 A JP2001333369 A JP 2001333369A JP 3851542 B2 JP3851542 B2 JP 3851542B2
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Prior art keywords
column
arm
damping device
tension
pillar
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JP2003138781A (en
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辰治 石丸
秀典 石垣
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Nihon University
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Nihon University
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Description

【0001】
【発明の属する技術分野】
本発明は構造物の制振装置に係わり、特に、木造建築物や鉄骨建築物等の構造物に用いて好適な制振装置に関するものである。
【0002】
【従来の技術】
近年、、木造建築物や鉄骨建築物等の構造物にあっては、地震等の振動による被害を抑えるために種々の対策が施されており、その一つとして、図5に示すように、柱1と、この柱1の上下に取り付けられる支持構造体(例えば、梁や天井、床や基礎等)2との間に、筋交い状に緩衝部材(たとえば、オイルダンパ)3を設置し、構造体に加わる振動を、前記緩衝部材3の緩衝作用によって早期に減衰させるようにした技術が提案されている。
【0003】
【発明が解決しようとする課題】
ところで、このような従来の技術においては、つぎのような改善すべき問題点が残されている。
【0004】
すなわち、前述したように緩衝部材3を、柱1と支持構造体2との間に筋交い状に設置すると、前記柱1と支持構造体2との間の空間部が、前記緩衝部材3によって占められてしまうといった問題点である。
【0005】
このような問題点は、前記緩衝部材3が、構造体の埋め殺しの壁部分に設置される場合には、その影響が少ないが、前記壁に窓を設ける必要がある場合、あるいは、前記柱1が床の中心部に設けられて、前記柱1のまわりがフロアとなされている場合等には、前記緩衝部材3によって窓の設置スペースが制限され、あるいは、前記緩衝部材3が前記フロアーの上部に位置させられて、フロアーの有効利用が図れないといった不具合の原因となる。
また、木造建築等の場合には、梁柱の接合部分も弱く、ダンパの取り付けが困難であり、特に、伝統的な木造建築物の修復には、大口径の柱の入手が難しく、傾斜復元力を期待することも困難であった。
【0006】
本発明は、このような従来の問題点に鑑みてなされたもので、構造物に対する制振機能を確保しつつ、柱とこの柱が取り付けられる支持構造体との間に大きな空間部を確保することのできる構造物の制振装置を提供することを目的とする。
【0007】
本発明の請求項1に記載の構造物の制振装置は、前述した目的を達成するために、構造物の柱と、この柱が取り付けられる上部構造体と下部構造体との間に設けられる制振装置であって、前記上部構造体と下部構造体との間に、前記柱の長さよりも長い張力部材を取り付け、この張力部材の途中に、第1のアームの一端部を固定するとともに、この第1のアームの他端部に、前記柱や前記上部構造体あるいは前記下部構造体の何れかに回動自在に取り付けられた第2のアームを回転自在に連結し、前記第1のアームあるいは前記第2のアームと前記柱や上部構造体あるいは下部構造体との間に緩衝部材を介装するとともに、これらのアームを付勢することにより、張力部材に張力を与える付勢部材を介装し、前記柱と前記上部構造体あるいは下部構造体との間に、免震支承を介装してなることを特徴とする。本発明の請求項2に記載の構造物の制振装置は、請求項1に記載の前記張力部材、前記第1のアーム、前記第2のアーム、前記緩衝部材、および、前記付勢部材を、前記柱を挟んだ両側に、この柱を中心として線対称的に設けてなることを特徴とする。本発明の請求項3に記載の構造物の制振装置は、請求項2に記載の前記一対の張力部材の、前記各第1のアームとの連部間に、前記両張力部材に張力を与える付勢部材を介装してなることを特徴とする。本発明の請求項4に記載の構造物の制振装置は、請求項1ないし請求項3の何れかに記載の前記柱の途中に、前記張力部材の途中が固定される係止部材を設けるとともに、この係止部材に、前記第2のアームを回動自在に連結したことを特徴とする。本発明の請求項5に記載の構造物の制振装置は、請求項1ないし請求項4の何れかに記載の前記張力部材をロープによって構成したことを特徴とする。本発明の請求項6に記載の構造物の制振装置は、請求項1ないし請求項4の何れかに記載の前記張力部材を鋼棒によって構成したとを特徴とする。本発明の請求項7に記載の構造物の制振装置は、構造物の柱と、この柱が取り付けられる上部構造体と下部構造体との間に設けられる制振装置であって、前記上部構造体と下部構造体との間に、一対の鋼棒からなり、その軸長の和が前記柱の長さよりも長い張力部材を前記柱の中心に関して片側毎に配置し、前記各鋼棒の一端部間を回動自在に連結するとともに、一方の鋼棒の他端部を前記柱の頭部回りの前記上部構造体に回動自在に連結し、他方の鋼棒の他端部を前記柱の脚部回りに回動自在に連結し、前記両鋼棒の連結部と、前記柱や上部構造体あるいは下部構造体との間に緩衝部材を介装し、前記柱と前記上部構造体あるいは下部構造体との間に、免震支承を介装してなることを特徴とする
【0008】
【発明の実施の形態】
以下、本発明の一実施形態について、図1を参照して説明する。
本実施形態に係わる構造物の制振装置10は、構造物の柱11と、この柱が取り付けられる上部構造体(梁)12と下部構造体(基礎)13との間に設けられる制振装置であって、前記上部構造体12と下部構造体13との間に、前記柱11の長さよりも長い張力部材14を取り付け、この張力部材14の途中に、第1のアーム15の一端部を固定するとともに、この第1のアーム15の他端部に、前記柱11に回動自在に取り付けられた第2のアーム16を回転自在に連結し、前記第1のアーム15と前記第2のアーム16との連結部17と、前記上部構造体12との間に緩衝部材18を介装するとともに、これらの第1および第2のアーム15・16を付勢することにより、前記張力部材14に張力を与える付勢部材19を介装し、前記柱11と前記上部構造体12との間に、免震支承としての積層ゴム支承20を介装した基本構成となっている。
【0009】
そして、本実施形態においては、前記制振装置10が、前記柱11の両側に、この柱11を中心として線対称的に設けられている。
【0010】
ついで、これらの詳細について説明すれば、前記柱11の上端部近傍には、ブラケット21が取り付けられており、このブラケット21に、前記第2のアーム16の端部が、ピン22を介して回動自在に連結されている。
【0011】
また、前記張力部材14は、本実施形態においてはロープが用いられており、その上端部が、前記上部構造体12に固定されたアンカー部材23に止着され、また、下端部が、前記下部構造体13に固定されたアンカー部材24に止着されて、さらに、前記張力部材14の途中に、前記第1のアーム15の端部がピン25によって固定されている。
【0012】
前記各緩衝部材18は、本実施形態においてはオイルダンパが用いられ、その一端部が、前記上部構造体12に設けられたブラケット26に、ピン27を介して回動自在に連結され、他端部が、前記第1のアーム15と第2のアーム16との連結部17に回動自在に連結されている。
そして、この緩衝部材18は、前述したオイルダンパに代えて、コイルバネ等の弾塑性部材によって構成することも可能であり、あるいは、高減衰ゴム等の粘弾性体によって構成することも可能である。
【0013】
前記付勢部材19は圧縮スプリングであり、前記両アーム15・16の連結部17を下方へ向けて押圧することにより、前記張力部材14の途中を前記柱11側へ押圧することにより、この張力部材14を緩みなく緊張状態に保持するようになっている。
【0014】
このように構成された本実施形態に係わる制振装置10にあっては、構造物に振動が加わり、たとえば、前記上部構造体10が、図2に矢印(イ)で示す方向に傾動させられると、図2において右側に配置されている張力部材14に作用する張力が増加し、その両端部が離間させられ、これによって、前記第1のアーム15および第2のアーム16の連結部17が上方へ向けて押し上げられる。
そして、この連結部17の上方への移動量は、前記第1アーム15と第2アーム16によって構成されるリンク機構によって、前記上部構造体12の傾動量よりも拡大される。
【0015】
この結果、右側に設けられている緩衝部材18および付勢部材19に縮み方向の外力が加わり、前記緩衝部材18において緩衝機能が生じ、この緩衝機能と、前記付勢部材19の弾性変形エネルギによって、構造物に作用する振動エネルギが吸収される。
【0016】
また、前述した上部構造体12の移動により、この上部構造体12と前記柱11との間に介装されている積層ゴム支承20が図2に示すように剪断変形させられる。
これによって、前記柱11と、前記上部構造体12との間に相対移動が生じ、この相対移動量の分、前記張力部材14の上端部が固定されたアンカー部材23が、前記柱14に対してさらに相対移動させられる。
この結果、前述した前記第1のアーム15および第2のアーム16の連結部17の上方への移動量がさらに増加されることにより、前記第1アーム15と第2アーム16の連結部17の移動量が大きく拡大される。
したがって、前記緩衝部材18の伸縮量がさらに拡大されて、この緩衝部材18によるエネルギ吸収作用を高めることができる。
また、前記積層ゴム支承20の変形エネルギもエネルギ吸収作用を生じることから、前記緩衝部材18や付勢部材19によるエネルギ吸収作用と相俟って、大きな制振作用が得られる。
【0017】
また、左側の張力部材14においては、その両端部が近付くように屈曲させられて、その緊張がゆるむ傾向となるが、この張力部材14と前記第1のアーム15との連結部(ピン25)が、前記付勢部材19の作用によって右側に押圧されていることにより、前記張力部材14は緊張状態に保持されて、前述したように発生しようとする緩みが吸収される。
これに伴い、左側に配設された緩衝部材18に伸び方向の外力が加わり、この緩衝部材18において緩衝機能が生じ、前述した振動エネルギが吸収される。
【0018】
また、揺り返しによって逆方向の揺れが発生した際においては、左側の張力部材14の変形と右側の張力部材14の変形、および、前記積層ゴム支承20の変形が、前述したのと逆になり、同様の制振作用が得られる。
【0019】
そして、前記制振装置10を構成する両アーム15・16や張力部材14、緩衝部材18、および、付勢部材19等が、前記柱11と前記上部構造体12や下部構造体13との間に形成される角部に納められ、かつ、前記張力部材14が、前記柱11に沿って配置されることから、前記柱11と上部構造体12や下部構造体13との間に形成される空間部Aが大きく開放される。
したがって、前記柱11がフロアの途中に配置されている場合にあっても、そのまわりの空間を大きく開放することができ、フロアの有効利用を図ることができる。
【0020】
また、前記張力部材14は、張力を与える構成になっているので、柱11には、それに伴う圧縮力が付加される。
これは、構造物の重量が増加することと同様の効果があり、伝統的木造建築物に本システムを適用した場合、傾斜復元力も増大させることとなるとともに、振動エネルギ吸収効果も与えることが可能となる。
【0021】
なお、前記実施形態において示した各構成部材の諸形状や寸法等は一例であって、設計要求等に基づき種々変更可能である。
【0022】
たとえば、図3に示すように、前記左右の制振装置10における、張力部材14間に、引張りスプリング等の付勢部材を介装しておき、前記両張力部材14に与える張力を増加させることもできる。
【0023】
また、図4に示すように、制振装置10を柱11と、下部構造体13との間に設けるとともに、前記柱11の途中に、前記張力部材14の途中が固定される係止部材29を設けるとともに、この係止部材29に、前記第2のアーム16を回動自在に連結した構成とすることもできる。
このような構成とすることによって、前記張力部材14を前記柱11により接近させて配置することができ、前記空間部Aをより広く利用することが可能となる。
【0024】
さらに、前記張力部材14としてロープを例示したが、これに代えて、鋼棒を用いることも可能である。
【0025】
一方、図6に示すように、前記上部構造体12と下部構造体13との間に、一対の鋼棒14a・14bからなり、その軸長の和が前記柱の長さよりも長い張力部材14を取り付け、前記各鋼棒14a・14bの一端部間をピン30によって回動自在に連結するとともに、一方の鋼棒14aの他端部を、前記上部構造体12にアンカー部材23を介して回動自在に連結し、他方の鋼棒14bの他端部を、前記下部構造体にアンカー部材24を介して回動自在に連結し、前記両鋼棒14a・14bの連結部(ピン30)と、前記柱11との間に緩衝部材18を介装し、前記柱11と前記上部構造体12との間に、積層ゴム支承20を介装した構成とすることも可能である。
このような構成においても、前述した各実施形態とほぼ同等の作用効果を得ることができる。
そして、前記積層ゴム支承20は、柱11と下部構成体13との間に介装してもよく、前記緩衝部材18は、上部構成体12や下部構成体13との間に介装するようにしてもよい。
さらに、免震支承として前述した実施形態においては積層ゴム支承を例示したが、図7に符号31で示すように、滑り支承や転がり支承を用いることも可能であり、これらの滑り支承や転がり支承は、前述した各実施形態においても適用可能である。
【0026】
【発明の効果】
以上説明したように、本発明に係わる構造物の制振装置によれば、制振装置の主要構成部材を、柱と、この柱の各端部が取り付けられる支持構造体とで形成される角部に収納することができ、あるいは、柱や支持構造体に沿って配置することができ、これによって、柱まわりに大きな空間部を確保することができる。
したがって、前記柱がフロアの途中に配置されている場合にあっても、そのまわりの空間を大きく開放することができ、フロアの有効利用を図ることができる。
しかも、構造体へ振動が発生した場合において、構造物の変形量を拡大して緩衝部材へ作用させて、この緩衝部材の作動量を大きくし、これによって、緩衝部材によるエネルギ吸収作用を大きくして制振機能を高めることができる。
さらに、前記積層ゴム支承の変形により、前記緩衝部材の変形量をさらに拡大して、この緩衝部材によるエネルギ吸収作用をさらに大きくして制振機能を高めることができる。
【図面の簡単な説明】
【図1】本発明の一実施形態を示す要部の概略正面図である。
【図2】本発明の一実施形態の作用を説明するための概略正面図である。
【図3】本発明の他の実施形態を示す概略正面図である。
【図4】本発明の他の実施形態を示す概略正面図である。
【図5】一従来例を示す要部の正面図である。
【図6】本発明のさらに他の実施形態を示す概略正面図である。
【図7】本発明のさらに他の実施形態を示す概略正面図である。
【符号の説明】
1 柱
2 支持構造体(梁)
3 緩衝部材
10 制振装置
11 柱
12 上部構造体(梁)
13 下部構造体(基礎)
14 張力部材
14a (一方の)鋼棒
14b (他方の)鋼棒
15 第1のアーム
16 第2のアーム
17 連結部
18 緩衝部材
19 付勢部材
20 積層ゴム支承(免震支承)
21 ブラケット
22 ピン
23 アンカー部材
24 アンカー部材
25 ピン
26 ブラケット
27 ピン
28 付勢部材
29 係止部材
30 ピン
31 滑り(転がり)支承(免震支承)
A 空間部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vibration damping device for a structure, and more particularly to a vibration damping device suitable for use in a structure such as a wooden building or a steel frame building.
[0002]
[Prior art]
In recent years, in structures such as wooden buildings and steel structures, various measures have been taken to suppress damage due to vibrations such as earthquakes, and as one of them, as shown in FIG. A buffer member (for example, an oil damper) 3 is installed in a brace between the column 1 and a support structure (for example, a beam, a ceiling, a floor, a foundation, etc.) 2 attached to the upper and lower sides of the column 1, and the structure A technique has been proposed in which the vibration applied to the damped member is damped at an early stage by the buffering action of the buffer member 3.
[0003]
[Problems to be solved by the invention]
By the way, in such a conventional technique, the following problems to be improved remain.
[0004]
That is, as described above, when the buffer member 3 is installed in a brace between the column 1 and the support structure 2, the space between the column 1 and the support structure 2 is occupied by the buffer member 3. It is a problem that it will be.
[0005]
Such a problem is less affected when the buffer member 3 is installed on the wall portion of the structure to be buried, but when the window needs to be provided on the wall, or the pillar 1 is provided in the center of the floor, and the space around the pillar 1 is a floor, the window installation space is limited by the buffer member 3, or the buffer member 3 is It is located in the upper part, causing a problem that the floor cannot be used effectively.
In addition, in the case of wooden buildings, the joints of the beam columns are also weak and it is difficult to install dampers. Particularly, for restoration of traditional wooden buildings, it is difficult to obtain large-diameter columns, and slope restoration It was also difficult to expect power.
[0006]
The present invention has been made in view of such conventional problems, and secures a large space portion between a pillar and a support structure to which the pillar is attached while securing a vibration damping function for the structure. An object of the present invention is to provide a structure damping device that can be used.
[0007]
The structure damping device according to claim 1 of the present invention is provided between the pillar of the structure and the upper structure and the lower structure to which the pillar is attached in order to achieve the above-described object. A vibration damping device, wherein a tension member longer than the length of the column is attached between the upper structure and the lower structure, and one end of the first arm is fixed in the middle of the tension member The second arm is rotatably connected to the other end of the first arm, and the second arm is pivotally attached to either the column or the upper structure or the lower structure. A cushioning member is interposed between the arm or the second arm and the column, the upper structure, or the lower structure, and a biasing member that applies tension to the tension member by biasing these arms is provided. Interposing, the column and the superstructure or Between the parts structure, and characterized by being interposed seismic isolation bearings. The structure damping device according to claim 2 of the present invention includes the tension member, the first arm, the second arm, the buffer member, and the biasing member according to claim 1. In addition, it is characterized in that it is provided on both sides of the column with line symmetry about the column. According to a third aspect of the present invention, there is provided a vibration damping device for a structure in which tension is applied to the two tension members between the pair of tension members of the second aspect and the first arms. It is characterized by comprising an urging member to be applied. According to a fourth aspect of the present invention, there is provided a vibration damping device for a structure, wherein a locking member is provided in the middle of the pillar according to any one of the first to third aspects. In addition, the second arm is rotatably connected to the locking member. A structure damping device according to a fifth aspect of the present invention is characterized in that the tension member according to any one of the first to fourth aspects is configured by a rope. A structure damping device according to claim 6 of the present invention is characterized in that the tension member according to any one of claims 1 to 4 is formed of a steel rod. The vibration damping device for a structure according to claim 7 of the present invention is a vibration damping device provided between a pillar of the structure and an upper structure and a lower structure to which the pillar is attached, Between the structure and the lower structure, a tension member having a pair of steel rods whose sum of axial lengths is longer than the length of the column is arranged on each side with respect to the center of the column . between one end while rotatably connected, the other end portion of one of the steel rods and pivotally connected to the upper structure of the head around said post, said other end portion of the other steel rod A pivot member is rotatably connected around the leg portion of the column, and a buffer member is interposed between the coupling portion of the steel bars and the column, the upper structure, or the lower structure, and the column and the upper structure. Alternatively, a seismic isolation bearing is interposed between the lower structure and the lower structure.
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIG.
A structure damping device 10 according to the present embodiment includes a structure pillar 11, and an upper structure (beam) 12 and a lower structure (foundation) 13 to which the pillar is attached. A tension member 14 longer than the length of the column 11 is attached between the upper structure 12 and the lower structure 13, and one end portion of the first arm 15 is attached to the middle of the tension member 14. The second arm 16 rotatably attached to the column 11 is rotatably connected to the other end portion of the first arm 15 and fixed to the first arm 15 and the second arm 15. A buffer member 18 is interposed between the connecting portion 17 to the arm 16 and the upper structure 12, and the tension member 14 is energized by biasing the first and second arms 15 and 16. A biasing member 19 for applying tension to the Between 11 and the upper structure 12, and has a basic structure which is interposed the laminated rubber bearing 20 as seismic isolation bearing.
[0009]
In the present embodiment, the vibration damping device 10 is provided symmetrically about the column 11 on both sides of the column 11.
[0010]
Next, these details will be described. A bracket 21 is attached in the vicinity of the upper end portion of the column 11, and the end portion of the second arm 16 is connected to the bracket 21 via a pin 22. It is connected freely.
[0011]
In the present embodiment, the tension member 14 is a rope. The upper end of the tension member 14 is fixed to the anchor member 23 fixed to the upper structure 12, and the lower end is fixed to the lower part. The end of the first arm 15 is fixed by a pin 25 in the middle of the tension member 14 and fixed to an anchor member 24 fixed to the structure 13.
[0012]
In the present embodiment, each of the buffer members 18 is an oil damper, and one end portion thereof is rotatably connected to a bracket 26 provided on the upper structure 12 via a pin 27, and the other end. The portion is rotatably connected to a connecting portion 17 between the first arm 15 and the second arm 16.
And this buffer member 18 can be comprised with elastic-plastic members, such as a coil spring, instead of the oil damper mentioned above, or can also be comprised with viscoelastic bodies, such as high attenuation | damping rubber | gum.
[0013]
The urging member 19 is a compression spring, and the tension of the tension member 14 is pushed toward the column 11 by pressing the connecting portion 17 of the arms 15 and 16 downward. The member 14 is held in a tension state without loosening.
[0014]
In the vibration damping device 10 according to the present embodiment configured as described above, vibration is applied to the structure, and for example, the upper structure 10 is tilted in the direction indicated by the arrow (A) in FIG. 2, the tension acting on the tension member 14 arranged on the right side in FIG. 2 is increased, and both end portions thereof are separated from each other, whereby the connecting portion 17 of the first arm 15 and the second arm 16 is separated. Pushed upwards.
The upward movement amount of the connecting portion 17 is increased by the link mechanism constituted by the first arm 15 and the second arm 16 as compared with the tilt amount of the upper structure 12.
[0015]
As a result, an external force in the contraction direction is applied to the buffer member 18 and the biasing member 19 provided on the right side, and a buffer function is generated in the buffer member 18, and the buffer function and the elastic deformation energy of the bias member 19 Vibration energy acting on the structure is absorbed.
[0016]
Further, due to the movement of the upper structure 12 described above, the laminated rubber support 20 interposed between the upper structure 12 and the column 11 is sheared and deformed as shown in FIG.
As a result, relative movement occurs between the column 11 and the upper structure 12, and the anchor member 23 to which the upper end portion of the tension member 14 is fixed corresponds to the column 14 by the amount of the relative movement. Can be further moved relative to each other.
As a result, the amount of upward movement of the connecting portion 17 of the first arm 15 and the second arm 16 is further increased, so that the connecting portion 17 of the first arm 15 and the second arm 16 is increased. The amount of movement is greatly enlarged.
Therefore, the amount of expansion / contraction of the buffer member 18 is further expanded, and the energy absorbing action by the buffer member 18 can be enhanced.
Further, since the deformation energy of the laminated rubber support 20 also has an energy absorbing action, a large vibration damping action is obtained in combination with the energy absorbing action by the buffer member 18 and the biasing member 19.
[0017]
In addition, the tension member 14 on the left side is bent so that both ends thereof approach each other, and the tension tends to be loosened. However, the connecting portion (pin 25) between the tension member 14 and the first arm 15 tends to be loosened. However, by being pressed to the right side by the action of the urging member 19, the tension member 14 is held in a tensioned state, and the slack to be generated as described above is absorbed.
Along with this, an external force in the extending direction is applied to the buffer member 18 disposed on the left side, a buffer function is generated in the buffer member 18, and the vibration energy described above is absorbed.
[0018]
Further, when a reverse swing occurs due to the swing, the deformation of the left tension member 14, the deformation of the right tension member 14, and the deformation of the laminated rubber bearing 20 are opposite to those described above. A similar vibration control action can be obtained.
[0019]
The arms 15 and 16, the tension member 14, the buffer member 18, the urging member 19, and the like constituting the vibration damping device 10 are disposed between the column 11 and the upper structure 12 or the lower structure 13. Since the tension member 14 is disposed along the column 11, the tension member 14 is formed between the column 11 and the upper structure 12 or the lower structure 13. The space part A is greatly opened.
Therefore, even when the pillar 11 is disposed in the middle of the floor, the space around the pillar 11 can be greatly opened, and the floor can be effectively used.
[0020]
In addition, since the tension member 14 is configured to give tension, a compressive force accompanying it is applied to the column 11.
This has the same effect as an increase in the weight of the structure. When this system is applied to a traditional wooden building, it can increase the restoring force of the slope and can also absorb the vibration energy. It becomes.
[0021]
Note that the shapes, dimensions, and the like of the constituent members shown in the embodiment are examples, and can be variously changed based on design requirements and the like.
[0022]
For example, as shown in FIG. 3, an urging member such as a tension spring is interposed between the tension members 14 in the left and right vibration damping devices 10 to increase the tension applied to the two tension members 14. You can also.
[0023]
As shown in FIG. 4, the damping device 10 is provided between the column 11 and the lower structure 13, and the locking member 29 is fixed to the middle of the tension member 14 in the middle of the column 11. In addition, the second arm 16 can be pivotally connected to the locking member 29.
With such a configuration, the tension member 14 can be disposed closer to the column 11, and the space A can be used more widely.
[0024]
Furthermore, although the rope is illustrated as the tension member 14, a steel rod can be used instead.
[0025]
On the other hand, as shown in FIG. 6, the tension member 14 is composed of a pair of steel rods 14a and 14b between the upper structure 12 and the lower structure 13, and the sum of the axial lengths is longer than the length of the column. The steel rods 14a and 14b are pivotally connected to each other by pins 30 and the other end of one steel rod 14a is rotated to the upper structure 12 via an anchor member 23. The other end of the other steel rod 14b is pivotally connected to the lower structure via an anchor member 24, and the connecting portion (pin 30) of both the steel rods 14a and 14b. Further, a buffer member 18 may be interposed between the pillars 11 and a laminated rubber support 20 may be interposed between the pillars 11 and the upper structure 12.
Even in such a configuration, it is possible to obtain substantially the same operational effects as the above-described embodiments.
The laminated rubber support 20 may be interposed between the pillar 11 and the lower structure 13, and the buffer member 18 is interposed between the upper structure 12 and the lower structure 13. It may be.
Furthermore, although the laminated rubber bearing is exemplified in the above-described embodiment as the seismic isolation bearing, a sliding bearing or a rolling bearing can be used as shown by reference numeral 31 in FIG. 7, and these sliding bearings and rolling bearings can be used. Is also applicable to the above-described embodiments.
[0026]
【The invention's effect】
As described above, according to the vibration damping device for a structure according to the present invention, the main component of the vibration damping device is an angle formed by a column and a support structure to which each end of the column is attached. Can be housed in a portion, or can be disposed along a pillar or a support structure, thereby ensuring a large space around the pillar.
Therefore, even when the pillar is arranged in the middle of the floor, the space around it can be greatly opened, and the floor can be effectively used.
In addition, when vibration occurs in the structure, the amount of deformation of the structure is increased and applied to the buffer member to increase the amount of operation of the buffer member, thereby increasing the energy absorption effect of the buffer member. Can improve the vibration control function.
Furthermore, the amount of deformation of the buffer member can be further increased by the deformation of the laminated rubber bearing, and the energy absorbing action by the buffer member can be further increased to enhance the vibration damping function.
[Brief description of the drawings]
FIG. 1 is a schematic front view of a main part showing an embodiment of the present invention.
FIG. 2 is a schematic front view for explaining the operation of the embodiment of the present invention.
FIG. 3 is a schematic front view showing another embodiment of the present invention.
FIG. 4 is a schematic front view showing another embodiment of the present invention.
FIG. 5 is a front view of a main part showing a conventional example.
FIG. 6 is a schematic front view showing still another embodiment of the present invention.
FIG. 7 is a schematic front view showing still another embodiment of the present invention.
[Explanation of symbols]
1 Pillar 2 Support structure (beam)
3 Buffer member 10 Damping device 11 Column 12 Upper structure (beam)
13 Substructure (basic)
14 tension member 14a (one) steel rod 14b (other) steel rod 15 first arm 16 second arm 17 connecting portion 18 buffer member 19 biasing member 20 laminated rubber bearing (seismic isolation bearing)
21 Bracket 22 Pin 23 Anchor member 24 Anchor member 25 Pin 26 Bracket 27 Pin 28 Energizing member 29 Locking member 30 Pin 31 Sliding (rolling) bearing (Seismic isolation bearing)
A space part

Claims (7)

構造物の柱と、この柱が取り付けられる上部構造体と下部構造体との間に設けられる制振装置であって、前記上部構造体と下部構造体との間に、前記柱の長さよりも長い張力部材を取り付け、この張力部材の途中に、第1のアームの一端部を固定するとともに、この第1のアームの他端部に、前記柱や前記上部構造体あるいは前記下部構造体の何れかに回動自在に取り付けられた第2のアームを回転自在に連結し、前記第1のアームあるいは前記第2のアームと前記柱や上部構造体あるいは下部構造体との間に緩衝部材を介装するとともに、これらのアームを付勢することにより、張力部材に張力を与える付勢部材を介装し、前記柱と前記上部構造体あるいは下部構造体との間に、免震支承を介装してなることを特徴とする構造物の制振装置。  A vibration damping device provided between a pillar of a structure and an upper structure and a lower structure to which the pillar is attached, and is longer than the length of the pillar between the upper structure and the lower structure. A long tension member is attached, one end of the first arm is fixed in the middle of the tension member, and the pillar, the upper structure, or the lower structure is attached to the other end of the first arm. A second arm that is pivotably attached to the first arm or the second arm and a pillar, an upper structure, or a lower structure is interposed between the second arm and the second arm. In addition, a biasing member that applies tension to the tension member by biasing these arms is interposed, and a seismic isolation bearing is interposed between the column and the upper structure or the lower structure. Damping device for structure characterized by comprising 前記張力部材、前記第1のアーム、前記第2のアーム、前記緩衝部材、および、前記付勢部材を、前記柱を挟んだ両側に、この柱を中心として線対称的に設けてなることを特徴とする請求項1に記載の構造物の制振装置。  The tension member, the first arm, the second arm, the buffer member, and the biasing member are provided symmetrically about the column on both sides of the column. The vibration damping device for a structure according to claim 1, wherein the vibration damping device is a structure. 前記一対の張力部材の、前記各第1のアームとの連部間に、前記両張力部材に張力を与える付勢部材を介装してなることを特徴とする請求項2に記載の構造物の制振装置。  The structure according to claim 2, wherein a biasing member that applies tension to the tension members is interposed between the pair of tension members connected to the first arms. Vibration damping device. 前記柱の途中に、前記張力部材の途中が固定される係止部材を設けるとともに、この係止部材に、前記第2のアームを回動自在に連結したことを特徴とする請求項1ないし請求項3の何れかに記載の構造物の制振装置。  A locking member for fixing the middle of the tension member is provided in the middle of the column, and the second arm is rotatably connected to the locking member. Item 4. The vibration damping device for a structure according to any one of Items 3 to 4. 前記張力部材をロープによって構成したことを特徴とする請求項1ないし請求項4の何れかに記載の構造物の制振装置。  The structure damping device according to any one of claims 1 to 4, wherein the tension member is formed of a rope. 前記張力部材を鋼棒によって構成したとを特徴とする請求項1ないし請求項4の何れかに記載の構造物の制振装置。  The structure damping device according to any one of claims 1 to 4, wherein the tension member is formed of a steel rod. 構造物の柱と、この柱が取り付けられる上部構造体と下部構造体との間に設けられる制振装置であって、前記上部構造体と下部構造体との間に、一対の鋼棒からなり、その軸長の和が前記柱の長さよりも長い張力部材を前記柱の中心に関して片側毎に配置し、前記各鋼棒の一端部間を回動自在に連結するとともに、一方の鋼棒の他端部を前記柱の頭部回りの前記上部構造体に回動自在に連結し、他方の鋼棒の他端部を前記柱の脚部回りに回動自在に連結し、前記両鋼棒の連結部と、前記柱や上部構造体あるいは下部構造体との間に緩衝部材を介装し、前記柱と前記上部構造体あるいは下部構造体との間に、免震支承を介装してなることを特徴とする構造物の制振装置。A vibration damping device provided between a pillar of a structure and an upper structure and a lower structure to which the pillar is attached, comprising a pair of steel rods between the upper structure and the lower structure , A tension member whose sum of axial lengths is longer than the length of the column is arranged on each side with respect to the center of the column, and one end of each steel rod is rotatably connected, and one of the steel rods The other end of the steel rod is pivotally connected to the upper structure around the head of the column, and the other end of the other steel rod is pivotally connected around the leg of the column, A buffer member is interposed between the connecting portion and the column, the upper structure, or the lower structure, and a seismic isolation bearing is interposed between the column and the upper structure or the lower structure. A structure damping device characterized by comprising:
JP2001333369A 2001-10-30 2001-10-30 Structure damping device Expired - Fee Related JP3851542B2 (en)

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JP4740815B2 (en) * 2006-10-10 2011-08-03 トヨタホーム株式会社 Damping structure of building and damping device
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