JPS61215825A - Anti-seismic supporting device - Google Patents
Anti-seismic supporting deviceInfo
- Publication number
- JPS61215825A JPS61215825A JP5608885A JP5608885A JPS61215825A JP S61215825 A JPS61215825 A JP S61215825A JP 5608885 A JP5608885 A JP 5608885A JP 5608885 A JP5608885 A JP 5608885A JP S61215825 A JPS61215825 A JP S61215825A
- Authority
- JP
- Japan
- Prior art keywords
- laminated rubber
- rubber body
- oil damper
- horizontal
- seismic isolation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、建築物、機器構造物等を地震の震動から保護
し、あるいはまた種々の外部振動から絶縁または防振す
るために用いられる免震支持装置特に積層ゴム体とダン
パーとを組合せた免震支持装置に関するものである。Detailed Description of the Invention (Industrial Application Field) The present invention relates to an isolation device used to protect buildings, equipment structures, etc. from earthquake vibrations, or to insulate or dampen them from various external vibrations. The present invention relates to a seismic support device, particularly a seismic isolation support device that combines a laminated rubber body and a damper.
（従来の技術）
かかる免震支持装置として、第５図にしめすようにゴム
層ｌと金属板２とを積層した積層ゴム体３と鋼材４によ
る弾塑性ダンパー５とを組合したものが従来既知であり
、積層ゴム体３は支持体である固定基礎６と被支持体で
ある構造物７との間に上下端フランジ８，９をボルト１
０．１１により固定して介在され、鋼材４は一端４ａを
固定基礎６にボルト１２により固定され、他端８ｂを支
持すべき構造物７に設けた掛合溝１３に掛合されている
。(Prior Art) As such a seismic isolation support device, there is a conventionally known device which combines a laminated rubber body 3, which is a laminated rubber layer 1 and a metal plate 2, and an elastoplastic damper 5 made of a steel material 4, as shown in FIG. The laminated rubber body 3 has upper and lower end flanges 8 and 9 connected with bolts 1 between a fixed foundation 6 as a support and a structure 7 as a supported body.
0.11, one end 4a of the steel material 4 is fixed to the fixed foundation 6 with a bolt 12, and the other end 8b is engaged in a hooking groove 13 provided in the structure 7 to be supported.
この形式の免震支持装置は、地震等による水平方向の震
動に対して、固定基礎６と支持構造物７との間に相対的
水平方向変位を生ぜしめ、この水平方向変位に際して第
６図に示すよう鋼材Ａが変位し、鋼材の塑性域Ａ−Ｂ
（第７図参照）の変形を利用してエネルギーを吸収させ
るようにしている。This type of seismic isolation support device causes relative horizontal displacement between the fixed foundation 6 and the support structure 7 in response to horizontal vibrations caused by earthquakes, etc., and when this horizontal displacement occurs, the Steel material A is displaced as shown, and the plastic region of steel material A-B
Energy is absorbed by utilizing the deformation (see Figure 7).
しかし、鋼材はその変形に際し、第７図に示すように、
塑性域Ａ−Ｂに入る前に大きい弾性域０−Ａを有するた
め、塑性域Ａ−Ｂによるエネルギー吸収をとるためには
弾性域を通過しなければならない。したがって、積層ゴ
ム体３に鋼材４による弾塑性ダンパー５を組合わせる場
合には、綱材４の弾性域０−Ａにおいて、積層ゴム体３
の持つ柔い弾性Ｃが鋼材の弾性によりそこなわれてしま
うという問題がある。However, when steel material deforms, as shown in Figure 7,
Since it has a large elastic region 0-A before entering the plastic region AB, it must pass through the elastic region in order to absorb energy by the plastic region AB. Therefore, when combining the elastoplastic damper 5 made of steel material 4 with the laminated rubber body 3, in the elastic region 0-A of the rope material 4, the laminated rubber body 3
There is a problem in that the soft elasticity C of the steel material is impaired by the elasticity of the steel material.
さらにまた、鋼材は繰返し疲労により破断する問題や、
地震後、鋼材の変形が残留し、当初の位置へ復帰せず、
したがって地震毎に鋼材の取り替えが必要となるという
問題がある。Furthermore, steel materials have the problem of breaking due to repeated fatigue,
After the earthquake, the steel remained deformed and did not return to its original position.
Therefore, there is a problem in that the steel materials need to be replaced every earthquake.
他の従来例として、第８図に示すように積層ゴム体３の
中心から半径方向に離間した位置で基礎６および構造物
７にブロック１４ 、１５を固定して設け、これらのブ
ロック１４．１５間にオイルダンパー１６を軸線を水平
にして軸線方向に延長して介挿したものが既知である。As another conventional example, as shown in FIG. 8, blocks 14 and 15 are fixed to the foundation 6 and the structure 7 at positions spaced apart in the radial direction from the center of the laminated rubber body 3. It is known that an oil damper 16 is inserted in between with the axis being horizontal and extending in the axial direction.
上述したオイルダンパー１６は前述の鋼材４による弾塑
性ダンパー５とは異なり、弾性域をもたないため、積層
ゴム体の水平方向弾性率に影響を与えることがなく、ま
た、弾塑性ダンパー５のように残留変形が生じない利点
を有する。Unlike the elasto-plastic damper 5 made of the steel material 4 described above, the oil damper 16 described above does not have an elastic region, so it does not affect the horizontal elastic modulus of the laminated rubber body. This has the advantage that no residual deformation occurs.
しかしながら、オイルダンパーを基礎と被支持物との間
に水平方向に軸線を延長して配置した構成では、上下方
向の振動に対して、オイルダンパーは殆んど伸縮せず、
したがってダンピング効果が得られない。また、上下の
基礎と被支持物とにダンパー取付用固定ブラケットを設
ける必要があり、施工工数が増大するという問題がある
。However, in a configuration in which the oil damper is arranged between the foundation and the supported object with its axis extending horizontally, the oil damper hardly expands or contracts in response to vertical vibrations.
Therefore, no damping effect can be obtained. Furthermore, it is necessary to provide fixing brackets for mounting the damper on the upper and lower foundations and the supported object, which poses a problem in that the number of construction steps increases.
（発明が解決しようとする問題点）
本発明は、上述した従来の免震支持装置における問題を
解決しようとするものである。(Problems to be Solved by the Invention) The present invention attempts to solve the problems in the conventional seismic isolation support device described above.
（問題点を解決するための手段）
本発明によれば、第１図に示すように、複数のエラスト
マ層１と金属板２とを交互に積層してなる積層ゴム体３
を具え、被支持体７を支持面６ａに対し水平方向に変位
し得るよう支持する免震支持装置において、前記被支持
体７と支持面６ａとの間にオイルダンパー２０を積層ゴ
ム体３の縦方向に軸線を延長して配置し、これにより水
平方向および垂直方向にダンピング作用を有するように
したことを特徴とする。(Means for Solving the Problems) According to the present invention, as shown in FIG.
In the seismic isolation support device that supports the supported body 7 so as to be horizontally displaceable with respect to the support surface 6a, an oil damper 20 is installed between the supported body 7 and the support surface 6a of the laminated rubber body 3. It is characterized in that it is disposed with its axis extending in the vertical direction, thereby providing a damping effect in the horizontal and vertical directions.
（作用）
本発明によれば、縦方向には高い剛性を有し、横方向に
は低い剛性を有する積層ゴム体３にオイルタンバー２０
を軸線を縦方向にして組合せたことにより、上下振動Ａ
に対しては、第２図に示すように、積層ゴム体３がΔＸ
だけ縦方向に変形し、この変形をオイルダンパー２０に
伝達してオイルダンパーは縮小し、この際オイルダンパ
ーによりダンピング効果を得ることができる。また、水
平方向の振動Ｂに対しては、第３図に示すように、積Ｊ
ｉコム体３がΔＹだけ水平方向に変形するとオイルダン
パー２０は第４図に示すようにΔｌだけ長くなり、この
時、オイルダンパーによりダンピング効果を得ることが
できる。(Function) According to the present invention, the oil tambour 20 is attached to the laminated rubber body 3 having high rigidity in the vertical direction and low rigidity in the horizontal direction.
By combining the axes with their axes in the vertical direction, vertical vibration A
As shown in FIG. 2, the laminated rubber body 3
This deformation is transmitted to the oil damper 20 so that the oil damper contracts. At this time, the oil damper can provide a damping effect. In addition, for horizontal vibration B, as shown in Figure 3, the product J
When the i-comb body 3 is horizontally deformed by ΔY, the oil damper 20 becomes longer by Δl as shown in FIG. 4, and at this time, the oil damper can provide a damping effect.
（実施例） 第１図は本発明による免震支持装置の１実施例を示す。(Example) FIG. 1 shows one embodiment of a seismic isolation support device according to the present invention.
図面に示す例では、複数のエラストマ層１と金属板２と
を交互に積層してなる積層ゴム体３の上下両端にそれぞ
れ大径のフランジ８，９を固着し、これらをポルＨ０，
１１により被支持体である構造物７の下面７ａおよび支
持体である基礎６の支持面６ａに固定している。In the example shown in the drawings, large-diameter flanges 8 and 9 are fixed to both upper and lower ends of a laminated rubber body 3 formed by alternately laminating a plurality of elastomer layers 1 and metal plates 2, and these are connected to Pol H0,
11, it is fixed to the lower surface 7a of the structure 7, which is a supported body, and to the supporting surface 6a of the foundation 6, which is a supporting body.
上下端フランジ８．９には、積層ゴム体３の周りの同心
円上に複数個の枢支用ブラケソ）２１．２２をそれぞれ
円周方向に等間隔で離間させて固設し、上下ブラケッ）
２１．２２にオイルダンパー２０の上下ロッド２３，２
４のロッド端を連結ピン２５ 、２６によってそれぞれ
ピン連結している。On the upper and lower end flanges 8.9, a plurality of pivot brackets (21, 22) are fixedly spaced at equal intervals in the circumferential direction on a concentric circle around the laminated rubber body 3.
21.22 are the upper and lower rods 23, 2 of the oil damper 20.
The ends of the four rods are connected by connecting pins 25 and 26, respectively.
かように構成したことにより、前述したように、上下方
向および水平方向の振動に対して、第２および３図に示
すように、積層ゴム体３が縦方向および水平方向にそれ
ぞれ変形し、この変形量に対応してオイルダンパーが伸
縮してダンピング効果を得ることができる。With this configuration, as described above, the laminated rubber body 3 is deformed in the vertical and horizontal directions in response to vertical and horizontal vibrations, as shown in FIGS. 2 and 3, respectively. The oil damper expands and contracts in response to the amount of deformation, providing a damping effect.
（発明の効果）
本発明によれば、上下方向の変形に対してダンピング効
果が得られるばかりでなく、水平方向の大きな変形に対
してもダンピング効果が得られる。(Effects of the Invention) According to the present invention, a damping effect can be obtained not only against deformation in the vertical direction, but also against large deformation in the horizontal direction.
また、図示の実施例に示すように、積層ゴム体の上下端
フランジ間にオイルダンパーを連結して介挿することが
でき、これにより積層ゴム体とオイルダンパーを一体化
することで、施工工数が大幅に減少され、また、取替え
、補修等の維持管理が容易になるという効果も得られる
。In addition, as shown in the illustrated embodiment, an oil damper can be connected and inserted between the upper and lower end flanges of the laminated rubber body, and this allows the laminated rubber body and the oil damper to be integrated, reducing construction man-hours. This also has the effect of making maintenance such as replacement and repair easier.
第１図は本発明による免震支持装置を支持体と被支持体
との間に介挿して示す側面図、第２図ないし第４図は第
１図に示す装置の作用説明図、
第５図は従来装置の１例を示す側面図、第６図および第
７図は第５図に示す装置の作用説明図、
第８図は従来装置の他の例を一部を断面として示す側面
図である。
■・・・エラストマ（ゴム）層
２・・・金属板 ３・・・積層ゴム体８．９
・・・上下端フランジ １０．１１・・・固定用ボルト
２０・・・オイルダンパー
２１、２２・・・枢支用ブラケット
２３、２４・・・ロンド ２５．２６・・・連結
ピン第１図
第２図1 is a side view showing a seismic isolation support device according to the present invention inserted between a support body and a supported body; FIGS. 2 to 4 are explanatory views of the operation of the device shown in FIG. 1; The figure is a side view showing one example of a conventional device, FIGS. 6 and 7 are explanatory diagrams of the operation of the device shown in FIG. 5, and FIG. 8 is a side view partially showing another example of the conventional device in cross section. It is. ■...Elastomer (rubber) layer 2...Metal plate 3...Laminated rubber body 8.9
... Upper and lower end flanges 10.11 ... Fixing bolts 20 ... Oil dampers 21, 22 ... Pivoting brackets 23, 24 ... Rondo 25.26 ... Connecting pins Fig. 1 Figure 2
Claims (1)
る積層ゴム体を具え、被支持体を支持面に対し水平方向
に変位し得るよう支持する免震支持装置において、前記
被支持体と支持面との間にオイルダンパーが積層ゴム体
の縦方向に軸線を延長して配置され、これにより水平方
向および垂直方向にダンピング作用を有するようにした
ことを特徴とする免震支持装置。1. A seismic isolation support device comprising a laminated rubber body formed by alternately laminating a plurality of elastomer layers and metal plates, and supporting a supported body so that it can be displaced in a horizontal direction with respect to a support surface, wherein the supported body 1. A seismic isolation support device characterized in that an oil damper is disposed between the support surface and the laminated rubber body with its axis extending in the vertical direction of the laminated rubber body, thereby exerting a damping action in the horizontal and vertical directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5608885A JPS61215825A (en) | 1985-03-22 | 1985-03-22 | Anti-seismic supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5608885A JPS61215825A (en) | 1985-03-22 | 1985-03-22 | Anti-seismic supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61215825A true JPS61215825A (en) | 1986-09-25 |
Family
ID=13017337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5608885A Pending JPS61215825A (en) | 1985-03-22 | 1985-03-22 | Anti-seismic supporting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61215825A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013212455A (en) * | 2012-04-02 | 2013-10-17 | Amano Corp | Electric dust collector |
| JP2015140853A (en) * | 2014-01-28 | 2015-08-03 | 株式会社 林物産発明研究所 | Base isolation member |
| JP2016105021A (en) * | 2016-01-15 | 2016-06-09 | オイレス工業株式会社 | Base-isolation mechanism |
| JP2016217418A (en) * | 2015-05-19 | 2016-12-22 | オイレス工業株式会社 | Base isolation structure |
| JP2020133835A (en) * | 2019-02-22 | 2020-08-31 | 株式会社 林物産発明研究所 | Seismic isolation device with jack |
-
1985
- 1985-03-22 JP JP5608885A patent/JPS61215825A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013212455A (en) * | 2012-04-02 | 2013-10-17 | Amano Corp | Electric dust collector |
| JP2015140853A (en) * | 2014-01-28 | 2015-08-03 | 株式会社 林物産発明研究所 | Base isolation member |
| JP2016217418A (en) * | 2015-05-19 | 2016-12-22 | オイレス工業株式会社 | Base isolation structure |
| JP2016105021A (en) * | 2016-01-15 | 2016-06-09 | オイレス工業株式会社 | Base-isolation mechanism |
| JP2020133835A (en) * | 2019-02-22 | 2020-08-31 | 株式会社 林物産発明研究所 | Seismic isolation device with jack |
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