JPS6114338A - Vibration attenuator of structure - Google Patents
Vibration attenuator of structureInfo
- Publication number
- JPS6114338A JPS6114338A JP59131026A JP13102684A JPS6114338A JP S6114338 A JPS6114338 A JP S6114338A JP 59131026 A JP59131026 A JP 59131026A JP 13102684 A JP13102684 A JP 13102684A JP S6114338 A JPS6114338 A JP S6114338A
- Authority
- JP
- Japan
- Prior art keywords
- damping device
- plastic member
- vibration damping
- plastic
- structures
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は構造体の振動減衰装置に係り、特に原子力機器
、原子力建屋等の喝築物などの大重量の構造体に使用し
て好適な振動減衰装置に関する。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a vibration damping device for structures, and is particularly suitable for use in heavy structures such as nuclear equipment and building structures such as nuclear power buildings. Relating to a damping device.
広義の意味での耐震設計法としては、次の３つの方法が
考えられる。The following three methods can be considered as seismic design methods in a broad sense.
（１）構造物を剛にする狭義の耐震設計法、（２）構造
物を剛にする代りに、減衰装置を付加して地震応答を小
さくする防震設計法、（３）振動系の固有振動数をＩＨ
ｚ以下にして、地震力を構造物に伝えないように振動絶
縁する免震設計法。(1) Seismic design method in a narrow sense that makes the structure rigid; (2) Seismic design method that adds a damping device to reduce seismic response instead of making the structure rigid; (3) Natural vibration of the vibration system. IH the number
A seismic isolation design method that isolates vibrations so that seismic force is not transmitted to the structure by reducing the earthquake force to less than z.
上記の（１）における減衰装置としては、一般にオイル
ダンパー、摩擦ダンパー、粘弾性体ダンパー等が用いら
れている。しかしながら、これらの減衰装置は大重量構
造物に対して高減衰を得るには困難がある。これを実現
するには大がかりな装置が必要であるし、定期的なメン
テナンスも必要とする欠点がある。As the damping device in the above (1), an oil damper, a friction damper, a viscoelastic damper, etc. are generally used. However, it is difficult for these damping devices to obtain high damping for heavy structures. To realize this, large-scale equipment is required, and regular maintenance is also required.
また、上記（３）における減衰装置としては例えば、特
開昭５２−４９６０４号公報に記載されているように、
建築物等に対して建築物全体を何枚かのゴム板と鉄板を
交互に積層した積層ゴムで支持する方法が採用されうつ
ある。この免震方式は、構漬物の応答加速度を大幅に低
減できる利点をもつ一方、応答の相対変位が大゛きくな
る問題点がある。Further, as the damping device in the above (3), for example, as described in Japanese Patent Application Laid-Open No. 52-49604,
A method is being adopted for buildings, etc., in which the entire building is supported by laminated rubber made by laminating several rubber plates and steel plates alternately. Although this seismic isolation method has the advantage of greatly reducing the response acceleration of the structure, it has the problem that the relative displacement of the response becomes large.
この対策として積層ゴムの中央に鉛棒を挿入したものが
あり、積層ゴムの変形と共に鉛棒がせん断方向に塑性変
形し、その際多量のエネルギを吸収する性質を用いたも
のである。As a countermeasure to this problem, a lead rod is inserted into the center of the laminated rubber, and as the laminated rubber deforms, the lead rod deforms plastically in the shear direction and absorbs a large amount of energy.
鉛等を免震構造の減衰機構として積層ゴム内に挿入する
場合、高減衰を得るためには、鉛棒を太くすればよいが
、地震後、鉛等の塑性変形により、７Ｉ＋３！ｊゴムに
大きな残留変形が生じてしまう場合がある。When inserting lead, etc. into laminated rubber as a damping mechanism for a seismic isolation structure, in order to obtain high damping, the lead rod can be made thicker, but after an earthquake, the plastic deformation of the lead, etc. causes 7I+3! j Large residual deformation may occur in the rubber.
そこ′で、鉛等の塑性変形等のヒステリシスを用いる減
衰機構を積層ゴムと独立させておけば、免震構造に用い
る場合には、塑性変形した減衰装置のみを取り換えれば
よく、交換も容易である。また、この減衰装置を防諜設
計にも適用することが可能となる。Therefore, if a damping mechanism that uses hysteresis such as plastic deformation of lead is made independent of the laminated rubber, when used in a seismic isolation structure, only the plastically deformed damping device needs to be replaced, making it easy to replace. It is. This damping device can also be applied to counterintelligence designs.
しかしながら、鉛等の塑性部材を単独で用いる場合、対
面する二つの構造体が相対変形すると、塑性部材には一
般にせん断変形と曲げ変形が生じるが、塑性変形が一部
に集中してしまう。そのため、繰り返し変形回数が増す
と、塑性変形が集中した部分が疲労することによって、
塑性部材が破損する恐れがある。However, when a plastic member such as lead is used alone, when two structures facing each other undergo relative deformation, shear deformation and bending deformation generally occur in the plastic member, but the plastic deformation is concentrated in one part. Therefore, as the number of repeated deformations increases, the parts where plastic deformation is concentrated will become fatigued.
Plastic members may be damaged.
本発明の目的は、従来技術の問題点を解消し、大重量の
構造物に対する免震設計及び防諜設計に適用でき、しか
も耐久性のある構造体の振動減衰装置を提供することに
ある。SUMMARY OF THE INVENTION An object of the present invention is to provide a vibration damping device for structures that solves the problems of the prior art, is applicable to seismic isolation design and counterintelligence design for heavy structures, and is durable.
本発明は、鉛等の塑性変形し易い部材が塑性変形する際
に多量のエネルギを吸収する性質を有することに着目し
、減衰部材を鉛等の塑性部材で形成し、減衰部材の内に
１本もしくは、複数本の芯材を入れ、その両端をピン支
持して、減衰部材の全体が一様にせん断変形することを
可能にした減衰装置である。The present invention focuses on the fact that a member such as lead that is easily deformed plastically has the property of absorbing a large amount of energy when plastically deforming, and the damping member is formed of a plastic member such as lead, and one This is a damping device in which a book or a plurality of core materials are inserted, and both ends of the core material are supported by pins, thereby making it possible for the entire damping member to undergo uniform shear deformation.
また、該振動減衰装置において、減衰部材の周
５゛囲に複数枚のリング等でおおうことによって、さ
らに耐久性のある振動減衰装置を提供することができる
。Further, in the vibration damping device, the periphery of the damping member is
A more durable vibration damping device can be provided by covering the vibration damping device with a plurality of rings or the like in a 5-degree area.
さらに、振動減衰装置の鉛直方向の振動荷重が大きく作
用する場合には、その力を緩和させるために、本発明の
上部もしくは下部を適当な剛性を有する弾性体で支持し
、かつ水平力に対しては抵抗するように、本発明の周囲
を支持する部材を付加したものである。Furthermore, when the vibration damping device is subjected to a large vibration load in the vertical direction, in order to alleviate the force, the upper or lower part of the present invention is supported by an elastic body with appropriate rigidity, and the horizontal force is A member is added to support the periphery of the present invention so as to provide resistance.
以下、本発明の構造体の振動減衰装置の具体的実施例を
各回により説明する。第１図は１本発明の一実施例を示
す縦断面図である。相対変位をし、対面する第１の構造
体１と第２の構造体２には、それぞれ第１の支持部材３
と第２の支持部材４がねじ止め等で取付けられている。Hereinafter, specific embodiments of the vibration damping device for a structure according to the present invention will be explained in each section. FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention. A first support member 3 is attached to the first structure 1 and the second structure 2 which are relatively displaced and face each other.
and a second support member 4 are attached by screws or the like.
この第１の支持部材３と第２の支持部材４間には鉛等の
塑性部材５が配設されている。この塑性部材５は円柱形
状が理想的である。また、この塑性部材５には塑性部材
５に比べ剛なる芯材６が１本もしくは複数本鉛直方向に
埋設されており、この芯材６の両端は第１の支持部材３
と第２の支持部材４によってピン支持されている。塑性
部材５の両端の周囲は第１の支持板３と第２の支持部材
４の凸部によって拘束されている。A plastic member 5 made of lead or the like is disposed between the first support member 3 and the second support member 4. This plastic member 5 ideally has a cylindrical shape. In addition, one or more core members 6 that are more rigid than the plastic member 5 are embedded vertically in the plastic member 5, and both ends of the core member 6 are connected to the first support member 3.
and is supported by a pin by a second support member 4. The periphery of both ends of the plastic member 5 is restrained by the convex portions of the first support plate 3 and the second support member 4.
次に、この振動減衰装置の作用について説明する。塑性
部材５の降伏力が第１の構造体１と第２の構造体２の間
に作用するせん断力より大きいうちは、第１と第２の構
造体１，２間の相対運動は生じない。即ち、塑性部材５
はトリガーの役目をする。そして第１と第２の構造体１
，２間のせん断力が塑性部材５の降伏力よりも大きくな
ると、面構造体１，２は相対運動をはじめ、この運動に
伴なって塑性部材５は塑性変形をする。この際、芯材６
が運動方向に傾くことによって、塑性部材５に、全体的
にせん断変形を起こさせることが可能となり、塑性部材
５の一部に大きな塑性変形が集中せず、耐久性のある減
衰効果を発揮する。Next, the operation of this vibration damping device will be explained. As long as the yield force of the plastic member 5 is greater than the shear force acting between the first structure 1 and the second structure 2, no relative movement occurs between the first and second structures 1 and 2. . That is, the plastic member 5
acts as a trigger. and the first and second structures 1
, 2 becomes larger than the yield force of the plastic member 5, the surface structures 1 and 2 begin to move relative to each other, and the plastic member 5 undergoes plastic deformation along with this movement. At this time, core material 6
By tilting in the direction of motion, it becomes possible to cause shear deformation in the plastic member 5 as a whole, and a large plastic deformation is not concentrated in a part of the plastic member 5, and a durable damping effect is exhibited. .
なお、本振動減衰装置には、その鉛直方向の荷重はあま
り加わらないように、設計すべきであるが、せん断方向
に相対変位する第１と第２の構造体１，２が振動中に、
鉛直方向にも変位する場合。Note that this vibration damping device should be designed so that not much load is applied in the vertical direction, but when the first and second structures 1 and 2, which are relatively displaced in the shear direction, vibrate,
When there is also displacement in the vertical direction.
本振動減衰装置は、鉛直方向の荷重を受けてしまう。This vibration damping device receives a load in the vertical direction.
そこで、第２図は、このような場合に適した本発明の他
の実施例である。第２図は、第１図において、第１の構
造体１と第２の構造体２が鉛直方向に相対変位した場合
に、塑性部材５と芯材６に鉛直方向の荷重を受けないた
めに、その方向に対し、塑性部材５と芯材６が自由に動
けるよう、第１の支持板３に間隙３ａを設けたものであ
る。もし塑性部材５及び芯材６が鉛直方向にある程度の
荷重が必要ならば、前述の間隙部に弾性体を入れてもよ
い。Therefore, FIG. 2 shows another embodiment of the present invention suitable for such a case. FIG. 2 shows a structure in which the plastic member 5 and the core material 6 are not subjected to a load in the vertical direction when the first structure 1 and the second structure 2 are vertically displaced relative to each other in FIG. , a gap 3a is provided in the first support plate 3 so that the plastic member 5 and the core member 6 can move freely in that direction. If the plastic member 5 and the core member 6 require a certain amount of load in the vertical direction, an elastic body may be inserted into the above-mentioned gap.
第３図は、本発明の更に他の実施例を示す縦断面図であ
る。この実施例は、塑性部材５の周囲に複数枚のリング
７等塑性部材５全体にせん断変形を起こさせる部材を設
け、他については第１図に示した実施例と同様である。FIG. 3 is a longitudinal sectional view showing still another embodiment of the present invention. This embodiment is the same as the embodiment shown in FIG. 1 except that a plurality of rings 7 and other members for causing shear deformation of the entire plastic member 5 are provided around the plastic member 5.
リング７の断面は、角形でも円形もしくはだ円でもよい
。このように、塑性部材５に、芯材６．リング７を設け
ることによって、さらに、塑性部材５に全体的かつ確実
にせん断変形を起こさせることが可能となり、耐久性に
優れた減衰効果を発揮させることができる。The cross section of the ring 7 may be square, circular, or oval. In this way, the core material 6. By providing the ring 7, it is further possible to cause shear deformation in the plastic member 5 as a whole and reliably, and it is possible to exhibit a damping effect with excellent durability.
第４図は、本発明の更に他の実施例を示す縦断面図であ
る。この実施例では、第２の支持板４の下部に適当な剛
性をもつ弾性体８が配置され、さらに第２の支持板４の
周囲にはこの水平方向の動きを拘束する固定部材９が設
けられている。この固定部材９は第２の構造体２に取り
付けられている。FIG. 4 is a longitudinal sectional view showing still another embodiment of the present invention. In this embodiment, an elastic body 8 having appropriate rigidity is disposed at the bottom of the second support plate 4, and a fixing member 9 is further provided around the second support plate 4 to restrain movement in the horizontal direction. It is being This fixing member 9 is attached to the second structure 2.
この実施例の作用について説明する。第２の支持板４が
固定部材９によって水平方向の移動を拘束されているた
め、水平方向の作用については第２図に示した実施例と
同様である。また、本振動減衰装置の鉛直方向の猿動荷
重が大きい場合には、弾性体８がたわむことによって、
芯材６やリング７間等のすべり部に大きな荷重がかから
ないよう１°ｔ６″″）ニーｈ＜”’Ｑ′！′：ｂ・従
″″″・”０鉛直方００ 、振動荷重にも本
実施例の減衰装置は水平面内の減衰効果を十分に発揮す
ることができる。The operation of this embodiment will be explained. Since the second support plate 4 is restrained from moving in the horizontal direction by the fixing member 9, the action in the horizontal direction is similar to that of the embodiment shown in FIG. In addition, when the vertical motion load of the present vibration damping device is large, the elastic body 8 is deflected, and as a result,
In order to prevent large loads from being applied to the sliding parts such as between the core material 6 and rings 7, 1°t6"") knee h<"'Q'!':b・Following""・"0 The damping device of this embodiment can sufficiently exhibit the damping effect in the horizontal plane.
以上説明したように、本発明によれば、耐久性のある構
造体の振動減衰装置を提供できる。As described above, according to the present invention, it is possible to provide a vibration damping device for a durable structure.
第１図は本発明の構造体の振動減衰装置の一実施例を示
す縦断面図、第２図〜第４図は本発明の構造体の振動振
音装置の他の実施例を示す縦断面図である。
１・・・第１の構造体、２・・・第２の構造体、３・・
・第１の支持板、４・・・第２の支持板、５・・・塑性
部材、６・・・芯材、７・・・リング、８・・・弾性体
、９・・・固定部材。FIG. 1 is a longitudinal cross-sectional view showing one embodiment of the vibration damping device for a structure according to the present invention, and FIGS. 2 to 4 are longitudinal cross-sectional views showing other embodiments of the vibration damping device for a structure according to the present invention. It is a diagram. 1...First structure, 2...Second structure, 3...
・First support plate, 4... Second support plate, 5... Plastic member, 6... Core material, 7... Ring, 8... Elastic body, 9... Fixing member .
Claims (1)
る構造体の振動減衰装置において、減衰部材として塑性
部材を用い、該塑性部材内に、１本もしくは複数本の柱
状の芯材を挿入し、芯材の両端部はそれぞれ２つの構造
体にピン支持されていることを特徴とする構造体の振動
減衰装置。 ２、塑性部材の周囲に塑性部材全体にせん断変形を起こ
させる部材を配設したことを特徴とする特許請求の範囲
第１項記載の構造体の振動減衰装置。[Claims] 1. In a vibration damping device for a structure disposed between two facing structures that are relatively displaced, a plastic member is used as the damping member, and one or more vibration damping members are provided in the plastic member. A vibration damping device for a structure, characterized in that a core material in the shape of a book column is inserted, and both ends of the core material are supported by pins on two structures, respectively. 2. The vibration damping device for a structure according to claim 1, further comprising a member disposed around the plastic member to cause shear deformation in the entire plastic member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59131026A JPS6114338A (en) | 1984-06-27 | 1984-06-27 | Vibration attenuator of structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59131026A JPS6114338A (en) | 1984-06-27 | 1984-06-27 | Vibration attenuator of structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6114338A true JPS6114338A (en) | 1986-01-22 |
Family
ID=15048271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59131026A Pending JPS6114338A (en) | 1984-06-27 | 1984-06-27 | Vibration attenuator of structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6114338A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6132302U (en) * | 1984-07-30 | 1986-02-27 | 鹿島建設株式会社 | Seismic isolation bearing device for buildings |
| JPS6260738U (en) * | 1985-10-05 | 1987-04-15 | ||
| JPH01247633A (en) * | 1988-03-28 | 1989-10-03 | Hideyuki Tada | Damping mechanism for vibrationproof device |
| JP2006308063A (en) * | 2005-03-30 | 2006-11-09 | Oiles Ind Co Ltd | Base isolation bearing |
| JP2011095173A (en) * | 2009-10-30 | 2011-05-12 | Mitsubishi Heavy Ind Ltd | Foundation for building in nuclear facilities and method for building foundation |
| KR20180097730A (en) * | 2016-02-01 | 2018-08-31 | 오일레스고교 가부시키가이샤 | Isolation device |
-
1984
- 1984-06-27 JP JP59131026A patent/JPS6114338A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6132302U (en) * | 1984-07-30 | 1986-02-27 | 鹿島建設株式会社 | Seismic isolation bearing device for buildings |
| JPH0450366Y2 (en) * | 1984-07-30 | 1992-11-27 | ||
| JPS6260738U (en) * | 1985-10-05 | 1987-04-15 | ||
| JPH01247633A (en) * | 1988-03-28 | 1989-10-03 | Hideyuki Tada | Damping mechanism for vibrationproof device |
| JP2006308063A (en) * | 2005-03-30 | 2006-11-09 | Oiles Ind Co Ltd | Base isolation bearing |
| JP4622663B2 (en) * | 2005-03-30 | 2011-02-02 | オイレス工業株式会社 | Seismic isolation support |
| JP2011095173A (en) * | 2009-10-30 | 2011-05-12 | Mitsubishi Heavy Ind Ltd | Foundation for building in nuclear facilities and method for building foundation |
| KR20180097730A (en) * | 2016-02-01 | 2018-08-31 | 오일레스고교 가부시키가이샤 | Isolation device |
| CN108474441A (en) * | 2016-02-01 | 2018-08-31 | 奥依列斯工业株式会社 | Shock absorbing apparatus |
| US20190017264A1 (en) * | 2016-02-01 | 2019-01-17 | Oiles Corporation | Seismic isolation apparatus |
| US10662645B2 (en) | 2016-02-01 | 2020-05-26 | Oiles Corporation | Seismic isolation apparatus |
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