JP2606277B2 - Elasto-plastic damper device - Google Patents
Elasto-plastic damper deviceInfo
- Publication number
- JP2606277B2 JP2606277B2 JP63097904A JP9790488A JP2606277B2 JP 2606277 B2 JP2606277 B2 JP 2606277B2 JP 63097904 A JP63097904 A JP 63097904A JP 9790488 A JP9790488 A JP 9790488A JP 2606277 B2 JP2606277 B2 JP 2606277B2
- Authority
- JP
- Japan
- Prior art keywords
- elasto
- plastic
- dampers
- seismic energy
- damper device
- 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.)
- Expired - Fee Related
Links
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） この発明は、地震時などに構造物が受ける地震エネル
ギーを簡単に吸収して構造物の破壊を未然に防止する弾
塑性ダンパー装置に関する。Description: TECHNICAL FIELD The present invention relates to an elasto-plastic damper device that easily absorbs seismic energy received by a structure during an earthquake or the like and prevents the structure from being destroyed before it occurs.
（従来の技術） 一般に、地震時に構造物が受ける地震エネルギーを吸
収して、構造物の地震による破壊を未然に防止する装置
としてダンパーが広く使用され、この種のダンパーとし
て種々のタイプのものが考えられている。(Prior Art) Generally, dampers are widely used as devices for absorbing seismic energy received by a structure during an earthquake and preventing the structure from being destroyed due to an earthquake. Various types of dampers of this type are available. It is considered.
これらの多くは粘性体を利用した粘性ダンパー、シリ
ンダー型のオイルダンパー、あるいは軟鋼からなる弾塑
性ダンパーなどで、広く知られている。Many of these are widely known as a viscous damper using a viscous body, a cylinder-type oil damper, or an elasto-plastic damper made of mild steel.
（発明が解決しようとする課題） しかし、これらのダンパーの多くは、設計の段階で剛
性および地震エネルギー吸収量が決まってしまい、この
ため一度取り付けてしまうと、調整が全くできなくって
しまうため、周期の異なる数種類の地震に有効に対応で
きないという欠点があり、仮にできてもきわめて限られ
たものであった。(Problems to be Solved by the Invention) However, in many of these dampers, rigidity and seismic energy absorption are determined at the design stage, and once installed, no adjustment can be performed at all. It had the drawback that it could not effectively cope with several types of earthquakes with different periods, and even if it could, it was very limited.
また、弾塑性ダンパーの製作に際しては、予想される
最大の地震エネルギーに基いて設計されるため、大型化
が避けられず、製作コストが嵩み不経済な設計に成りや
すいなどの課題があった。In addition, when manufacturing an elasto-plastic damper, there is a problem that the design is based on the maximum anticipated seismic energy, which inevitably increases the size, increases the manufacturing cost, and tends to be uneconomical. .
この発明は、以上の課題を解決するためになされたも
ので、レベルの異なる数種類の地震エネルギーを吸収す
ることができるとともに、きわめて簡単な構造でありな
がら、地震エネルギー吸収能力がきわめて大きく、しか
も取扱いおよび設計が容易な弾塑性ダンパー装置を提供
することを目的とする。The present invention has been made to solve the above problems, and can absorb several types of seismic energy at different levels, has a very simple structure, has a very large seismic energy absorbing capacity, and has a large handling capacity. It is another object of the present invention to provide an elasto-plastic damper device that can be easily designed.
（問題点を解決するための手段） この発明に係る弾塑性ダンパー装置は、複数個の弾塑
性ダンパーを構造部材どうしの接合部に、双方の構造部
材間に跨がって取り付け、かつ前記複数個の弾塑性ダン
パーが前記構造部材間の層間変位によって変形すること
により前記構造部材に作用する地震エネルギーを吸収す
る弾塑性ダンパー装置において、前記複数個の弾塑性ダ
ンパーを前記地震エネルギーを吸収可能な剛性、降伏耐
力および塑性変形能力を有するように所定の厚さを有
し、かつ複数個の孔を有してそれぞれ形成し、さらに一
方の弾塑性ダンパーの剛性、降伏耐力および塑性変形能
力が他方のそれより大きくなるように、前記厚さおよび
孔の数を変えて形成してあることを特徴とする。(Means for Solving the Problems) In an elasto-plastic damper device according to the present invention, a plurality of elasto-plastic dampers are attached to a joint between structural members so as to extend between both structural members, and An elasto-plastic damper device that absorbs seismic energy acting on the structural member by deforming the elasto-plastic dampers due to interlayer displacement between the structural members, wherein the plurality of elasto-plastic dampers can absorb the seismic energy. It has a predetermined thickness so as to have rigidity, yield strength and plastic deformation ability, and is formed with a plurality of holes, respectively, and the rigidity, yield strength and plastic deformation capacity of one elasto-plastic damper are other The thickness and the number of holes are changed so as to be larger than the above.
（実施例） 以下、この発明に係る弾塑性ダンパー装置を図示する
一実施例に基いて説明すると、第１図および第２図にお
いて、符号１はＨ形鋼などからなる構造部材としての
柱、２と３はこの上下柱１どうしを接合する弾塑性ダン
パーである。(Embodiment) Hereinafter, an elasto-plastic damper device according to an embodiment of the present invention will be described with reference to an embodiment. In FIGS. Elastic-plastic dampers 2 and 3 join the upper and lower columns 1 together.
弾塑性ダンパー２と３は、ともに軟鋼などから所定の
厚さを有して矩形の板状に形成され、かつその略中央部
に複数個の孔４が横方向に一定間隔置きに形成され、さ
らに上下両端部に上下柱１の端部にボルト止めして固定
するためのボルト孔５が複数個形成されている。Each of the elasto-plastic dampers 2 and 3 is formed of a mild steel or the like and has a predetermined thickness and is formed in a rectangular plate shape, and a plurality of holes 4 are formed at a substantially central portion thereof at regular intervals in the lateral direction. Further, a plurality of bolt holes 5 are formed at both upper and lower ends for bolting and fixing the ends of the upper and lower columns 1.
弾塑性ダンパー２および３の厚さと孔４の数および大
きさは、弾塑性ダンパー２と３とによって接合された柱
１が受ける地震エネルギーを吸収可能な、最も最適な剛
性、降伏耐力および塑性変形能力を有するように所定の
厚さを有し、かつ複数個の孔４を有して形成されてい
る。また、弾塑性ダンパー２と３は、厚さ、孔４の数お
よび大きさを適当に変えることにより、一方の剛性、降
伏耐力および塑性変形能力が他方のそれより大きくなる
ように形成されている。The thickness of the elasto-plastic dampers 2 and 3 and the number and size of the holes 4 are determined by the most optimum stiffness, yield strength and plastic deformation capable of absorbing the seismic energy received by the column 1 joined by the elasto-plastic dampers 2 and 3. It has a predetermined thickness so as to have a capacity and has a plurality of holes 4. The elasto-plastic dampers 2 and 3 are formed such that the rigidity, yield strength and plastic deformation capacity of one of them are larger than those of the other by appropriately changing the thickness, the number and size of the holes 4. .
弾塑性ダンパー２と３がこのように形成されているこ
とにより、弾塑性ダンパー２と３は地震エネルギーを受
けて内部応力が一定値を越えると、複数個の孔４が形成
された中央部分が塑性変形して地震エネルギーを吸収す
ることにより、柱１の破壊を未然に防止でき、またレベ
ルの異なる大地震時の地震エネルギーおよび比較的小さ
な地震時の地震エネルギーをともに吸収できる。Since the elasto-plastic dampers 2 and 3 are formed in this way, when the elasto-plastic dampers 2 and 3 receive the seismic energy and the internal stress exceeds a certain value, the central portion where the plurality of holes 4 are formed is formed. By absorbing the seismic energy by plastic deformation, the destruction of the column 1 can be prevented beforehand, and both the seismic energy of a large earthquake having a different level and the seismic energy of a relatively small earthquake can be absorbed.
このように形成された弾塑性ダンパー２と３は、上下
柱1,1間の接合部に取り付けられている。この場合、弾
塑性ダンパー２と３は上下柱1,1間に、双方に跨がって
取り付けられ、かつ上下両端部が上下柱1,1の側部にそ
れぞれ添え付けられている。The elasto-plastic dampers 2 and 3 formed in this way are attached to the joint between the upper and lower columns 1 and 1. In this case, the elasto-plastic dampers 2 and 3 are mounted between the upper and lower columns 1 and 1 so as to straddle them, and both upper and lower ends are attached to the side portions of the upper and lower columns 1 and 1, respectively.
また、弾塑性ダンパー２と３は取付孔5,5とこれに対
応して形成された上下柱1,1の取付孔（図示略）を貫通
する複数本の高力ボルト６によって上下柱1,1の端部に
固定されている。The elastic-plastic dampers 2 and 3 are provided with a plurality of high-strength bolts 6 penetrating the mounting holes 5, 5 and the mounting holes (not shown) of the upper and lower columns 1, 1 formed corresponding thereto. It is fixed to one end.
第３図は、弾塑性ダンパー２と３を上下柱1,1間の両
側部に、それぞれ重ねて複数枚ずつ取り付けて上下柱１
どうしを接合した状態を示し、この場合、弾塑性ダンパ
ー２と３の枚数は、１〜２枚に限定されるものではな
く、柱１が受ける地震エネルギーによって適当に増減さ
れるものである。FIG. 3 shows that a plurality of elasto-plastic dampers 2 and 3 are attached on both sides between the upper and lower columns
This shows a state where the two members are joined together. In this case, the number of the elastic-plastic dampers 2 and 3 is not limited to one or two, but is appropriately increased or decreased according to the seismic energy received by the column 1.
このような構成において、上下柱1,1間の接合部に水
平剪断力Ｑが作用した場合、弾塑性ダンパー２と３の中
央部分が塑性変形することにより水平剪断力Ｑが吸収さ
れる。よって地震エネルギーによる建物の脆性破壊を未
然に防止できる。In such a configuration, when a horizontal shear force Q acts on the joint between the upper and lower columns 1, 1, the horizontal shear force Q is absorbed by plastically deforming the central portions of the elasto-plastic dampers 2 and 3. Therefore, brittle destruction of the building due to seismic energy can be prevented.
また、弾塑性ダンパー２又は３の一方が他方より、厚
さ、孔４の数および大きさを適当に変えて剛性、降伏耐
力および塑性変形能力が大きくなるように形成されてい
ることにより、大地震に対しては剛性、降伏耐力および
塑性変形能力の大きい方の弾塑性ダンパーが働き、比較
的小さい地震に対しては剛性、降伏耐力および塑性変形
能力の小さい方の弾塑性ダンパーが働くため、レベルの
異なる数種類の地震に対しても有効に対処できる。In addition, one of the elasto-plastic dampers 2 or 3 is formed so that the rigidity, the yield strength and the plastic deformation capacity are increased by appropriately changing the thickness, the number and the size of the holes 4 as compared with the other. The elasto-plastic damper with the greater stiffness, yield strength and plastic deformation capacity works for earthquakes, and the elasto-plastic damper with the smaller stiffness, yield strength and plastic deformation capacity works for relatively small earthquakes. It can effectively deal with several types of earthquakes with different levels.
（発明の効果） この発明に係る弾塑性ダンパー装置は、以上説明した
構成からなるので、以下の効果を有する。(Effect of the Invention) Since the elasto-plastic damper device according to the present invention has the above-described configuration, it has the following effects.
剛性、降伏耐力、塑性変形能力の異なる複数個の弾
塑性ダンパーによって柱などの構造部材どうしが接合さ
れているので、大地震に対しては剛性、降伏耐力および
塑性変形能力の大きい方の弾塑性ダンパーが働き、比較
的小さい地震に対しては剛性、降伏耐力および塑性変形
能力の小さい方の弾塑性ダンパーが働くことにり、レベ
ルの異なる数種類の地震に対しても有効に対処できる。Columns and other structural members are joined by multiple elasto-plastic dampers with different stiffness, yield strength, and plastic deformation capacity. The damper works, and the elasto-plastic damper with the smaller stiffness, yield strength and plastic deformation capacity works for relatively small earthquakes, and can effectively cope with several types of earthquakes with different levels.
弾塑性ダンパーの厚さ、孔の数および大きさを適当
に変えることにより、地震エネルギーを吸収するのに最
も適した剛性、降伏耐力、塑性変形能力が設定されてい
るので、弾塑性ダンパーの製作を容易に製作でき、また
無駄のないきわめて理想的な構造設計ができる。The stiffness, yield strength and plastic deformation capacity that are most suitable for absorbing seismic energy are set by appropriately changing the thickness, number and size of elasto-plastic dampers. Can be easily manufactured, and a very ideal structural design without waste can be achieved.
弾塑性ダンパーがきわめて単純な形状をしているた
め、量産化および量産化による製作コストの低減化が図
れる。また、取り扱いも容易である。Since the elasto-plastic damper has a very simple shape, mass production and reduction of manufacturing cost by mass production can be achieved. Also, handling is easy.
【図面の簡単な説明】 第１図、第２図および第３図は、この発明に係る弾塑性
ダンパー装置を示し、第１図はその正面図、第２図は第
１図における縦断面図、第３図は他の実施例を示す第１
図における竪断面図である。 １……柱（構造部材）2,3……弾塑性ダンパー、４……
孔、５……取付孔、 ６……高力ボルト、７……梁、８……耐震壁、９……ブ
ラケット、10……スリット。BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1, 2 and 3 show an elasto-plastic damper device according to the present invention, FIG. 1 is a front view thereof, and FIG. 2 is a longitudinal sectional view in FIG. FIG. 3 is a first embodiment showing another embodiment.
It is a vertical sectional view in a figure. 1 ... pillar (structural member) 2, 3 ... elasto-plastic damper, 4 ...
Holes 5 Mounting holes 6 High-strength bolts 7 Beams 8 Earthquake-resistant walls 9 Brackets 10 Slits
───────────────────────────────────────────────────── フロントページの続き (72)発明者 前田 祥三 東京都港区元赤坂１丁目２番７号 鹿島 建設株式会社内 (72)発明者 高橋 新一 東京都港区元赤坂１丁目２番７号 鹿島 建設株式会社内 (56)参考文献 実願 昭60−23408号（実開 昭62− 648号）の願書に添付した明細書及び図 面の内容を撮影したマイクロフィルム （ＪＰ，Ｕ) ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Shozo Maeda 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Shinichi Takahashi 1-2-7 Moto-Akasaka, Minato-ku, Tokyo No. Kashima Construction Co., Ltd. (56) References Practical application Microfilm (JP, U) photographing the contents of the specification and drawings attached to the application form of Japanese Utility Model Application No. 60-23408 (Japanese Utility Model Application No. 62-648)
Claims (1)
の接合部に、双方の構造部材間に跨がって取り付け、か
つ前記複数個の弾塑性ダンパーが前記構造部材間の層間
変位によって変形することにより前記構造部材に作用す
る地震エネルギーを吸収する弾塑性ダンパー装置におい
て、前記複数個の弾塑性ダンパーを前記地震エネルギー
を吸収可能な剛性、降伏耐力および塑性変形能力を有す
るように所定の厚さを有し、かつ複数個の孔を有してそ
れぞれ形成し、さらに一方の弾塑性ダンパーの剛性、降
伏耐力および塑性変形能力が他方のそれより大きくなる
ように、前記厚さおよび孔の数を変えて形成してあるこ
とを特徴とする弾塑性ダンパー装置。1. A plurality of elasto-plastic dampers are attached to a joint between structural members so as to extend between the two structural members, and the plurality of elasto-plastic dampers are deformed by interlayer displacement between the structural members. In the elasto-plastic damper device for absorbing seismic energy acting on the structural member, the plurality of elasto-plastic dampers have a predetermined thickness so as to have rigidity, yield strength and plastic deformation capacity capable of absorbing the seismic energy. And the number of the holes and the number of the holes so that the stiffness, yield strength and plastic deformation capacity of one elasto-plastic damper are greater than those of the other. An elasto-plastic damper device characterized by being formed by changing the shape.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63097904A JP2606277B2 (en) | 1988-04-20 | 1988-04-20 | Elasto-plastic damper device |
| US07/301,317 US4959934A (en) | 1988-01-27 | 1989-01-24 | Elasto-plastic damper for use in structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63097904A JP2606277B2 (en) | 1988-04-20 | 1988-04-20 | Elasto-plastic damper device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01268934A JPH01268934A (en) | 1989-10-26 |
| JP2606277B2 true JP2606277B2 (en) | 1997-04-30 |
Family
ID=14204712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63097904A Expired - Fee Related JP2606277B2 (en) | 1988-01-27 | 1988-04-20 | Elasto-plastic damper device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2606277B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220073235A (en) * | 2020-11-26 | 2022-06-03 | 동아대학교 산학협력단 | Composite Steel Damper using High Ductility Steel |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2715710B2 (en) * | 1991-07-01 | 1998-02-18 | 株式会社大林組 | Eccentric brace structure with vibration suppression function |
| US5375382A (en) * | 1992-01-21 | 1994-12-27 | Weidlinger; Paul | Lateral force resisting structures and connections therefor |
| JPH10159251A (en) * | 1996-12-02 | 1998-06-16 | Takenaka Komuten Co Ltd | Steel frame girder with presettble yield position |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH033723Y2 (en) * | 1985-02-22 | 1991-01-30 |
-
1988
- 1988-04-20 JP JP63097904A patent/JP2606277B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220073235A (en) * | 2020-11-26 | 2022-06-03 | 동아대학교 산학협력단 | Composite Steel Damper using High Ductility Steel |
| KR102416508B1 (en) | 2020-11-26 | 2022-07-05 | 동아대학교 산학협력단 | Composite Steel Damper using High Ductility Steel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01268934A (en) | 1989-10-26 |
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