JP2658164B2 - Elasto-plastic damper - Google Patents
Elasto-plastic damperInfo
- Publication number
- JP2658164B2 JP2658164B2 JP63097903A JP9790388A JP2658164B2 JP 2658164 B2 JP2658164 B2 JP 2658164B2 JP 63097903 A JP63097903 A JP 63097903A JP 9790388 A JP9790388 A JP 9790388A JP 2658164 B2 JP2658164 B2 JP 2658164B2
- Authority
- JP
- Japan
- Prior art keywords
- elasto
- plastic damper
- plastic
- damper
- attached
- 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 - Lifetime
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- 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
塑性ダンパーに関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elasto-plastic damper that easily absorbs seismic energy received by a structure during an earthquake or the like and prevents the structure from being destroyed. .
（従来の技術） 従来、ダンパーの構造物への利用例として、免震構造
への利用が上げられ、これまで、種々のタイプのダンパ
ーが考えられている。(Prior Art) Conventionally, as an example of using a damper for a structure, use of the damper for a seismic isolation structure has been raised, and various types of dampers have been considered so far.
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
性ダンパーなどであでる。Most of these are 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、粘性体ダンパーやオイルダンパーは定期的な
メンテナンスを必要とし、また温度により特性が変わる
などのために設計が難しく、エネルギー吸収能力のあま
り大きなものは製作できないなどの課題があった。(Problems to be Solved by the Invention) However, viscous dampers and oil dampers require regular maintenance, and are difficult to design because their characteristics change depending on temperature, and cannot be manufactured with a very large energy absorption capacity. There were issues such as.
また、オイルダンパーは一方向の地震力にしか有効に
働かないという欠点を有し、軟鋼棒からなる弾塑性ダン
パーは破壊限界があるために、大型化を免れないなどの
課題があった。さらに、これらのダンパーは何れも製作
コストが相当嵩むなどの課題もあった。Further, the oil damper has a drawback that it works effectively only in one-way seismic force, and the elasto-plastic damper made of a mild steel rod has a breaking limit, so that there is a problem that the size cannot be avoided. Further, these dampers also have a problem that the manufacturing cost is considerably increased.
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、きわめて簡単な造でありながら、地震エネルギー
吸収能力が大きく、しかも取扱いおよび設計が容易な弾
塑性ダンパーを提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide an elasto-plastic damper which is extremely simple, has a large seismic energy absorption capacity, and is easy to handle and design. .
（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は、接合される構造部
材と構造部材との接合部に、これらの構造部材間に跨が
り、かつ前記双方の構造部材の側部にそれぞれボルト止
めして取り付けられ、前記構造部材間の層間変位により
変形することによって、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において、前記地震
エネルギーの大きさに応じた剛性、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と複数個の孔又はス
リットとを有して形成され、かつ前記構造部材との当接
面が平坦に形成されてなることを特徴とする。(Means for Solving the Problems) An elasto-plastic damper according to the present invention is provided at a joint between a structural member to be joined and a structural member, straddling between the structural members, and on both sides of the structural members. The elasto-plastic damper, which is attached to each part by bolting and absorbs seismic energy acting on the structural member by being deformed by interlayer displacement between the structural members, has a rigidity corresponding to the magnitude of the seismic energy, It is characterized by having a predetermined thickness and a plurality of holes or slits so as to have a yield strength and a plastic deformation capacity, and a flat contact surface with the structural member.
（実施例） 以下、この発明に係る弾塑性ダンパーを図示する一実
施例に基いて説明すると、第１図および第２図におい
て、弾塑性ダンパー１は軟鋼などから所定の板厚を有し
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２が横方向に一定間隔置きに形成されている。(Embodiment) Hereinafter, an elasto-plastic damper according to the present invention will be described with reference to an embodiment. In FIGS. 1 and 2, the elasto-plastic damper 1 is made of mild steel or the like and has a predetermined plate thickness. It is formed in a rectangular plate shape, and a plurality of holes 2 are formed in a substantially central portion thereof at regular intervals in the lateral direction.
弾塑性ダンパー１の厚さと孔２の数および大きさは、
弾塑性ダンパーが取り付けられる柱などの構造部材が受
ける地震エネルギーを吸収するのに最も最適な剛性、降
伏耐力および塑性変形能力を有するように形成され、か
つ厚さ、孔２の数および大きさを地震エネルギーの大き
さに応じて適宜変えることにより、剛性、降伏耐力およ
び塑性変形能力が調整されている。このような考えに基
いて、弾塑性ダンパー１は、例えば上下両端部が厚く形
成され、かつ上下両端部から中央部に移るに従って徐々
に薄く形成され、また中央部に略矩形状の縦長の孔２が
横方向に一定間隔置きに形成されている。The thickness of the elasto-plastic damper 1 and the number and size of the holes 2
It is formed to have the most suitable rigidity, yield strength and plastic deformation capacity to absorb the seismic energy received by the structural member such as the column to which the elasto-plastic damper is attached, and has the thickness, the number and the size of the holes 2. Rigidity, yield strength, and plastic deformation capacity are adjusted by appropriately changing the magnitude of the seismic energy. Based on this idea, the elasto-plastic damper 1 is formed, for example, such that the upper and lower ends are formed thicker and gradually thinner from the upper and lower ends to the center, and a substantially rectangular vertically long hole is formed in the center. 2 are formed at regular intervals in the horizontal direction.
弾塑性ダンパー１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１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、板厚が薄く、かつ複数個の孔
２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、構造部材の破壊が未然に防止さ
れる。With the elasto-plastic damper 1 formed in this way, when the elasto-plastic damper 1 receives the seismic energy and the internal stress exceeds a certain value, the elasto-plastic damper 1 becomes thinner and has a plurality of holes 2 in the center. Since the part is plastically deformed and absorbs seismic energy, the structural member is prevented from being broken.
また、弾塑性ダンパー１の上下両端部に柱などの構造
部材の側部にそれぞれ添え付け、かつボルト止めして固
定するためのボルト孔３が弾塑性ダンパー１の横方向に
一定間隔置きに複数個形成され、さらに構造部材の側部
に当接する側が平坦に形成されている。Further, a plurality of bolt holes 3 are attached to the upper and lower ends of the elasto-plastic damper 1 and attached to side portions of a structural member such as a column, and are fixed to the elasto-plastic damper 1 at regular intervals in the lateral direction. It is formed individually, and the side that contacts the side of the structural member is formed flat.
第３図〜第５図は、弾塑性ダンパー１の取付例を示
し、第３図は弾塑性ダンパー１を柱どうしの接合部に取
り付けた状態を示し、弾塑性ダンパー１は上下柱4,4の
接合部に取り付けられている。3 to 5 show an example of mounting the elasto-plastic damper 1, and FIG. 3 shows a state in which the elasto-plastic damper 1 is mounted on a joint between the columns. Attached to the joint.
この場合、弾塑性ダンパー１は上下柱4,4のウェブ5,5
間に、双方に跨がり、かつ上下両端部を双方のウェブ5,
5の側部にそれぞれ添え付けて取り付けられている。ま
た、弾塑性ダンパー1,1は取付孔3,3とこれに対応して形
成されたウェブ5,5の取付孔（図省略）とを貫通する複
数本の高力ボルト６によって上下柱4,4の端部に固定さ
れている。In this case, the elastic-plastic damper 1 is composed of the webs 5,5 of the upper and lower columns 4,4.
In between, straddle both sides, and both upper and lower ends of both webs 5,
It is attached to each side of 5 alongside. The elastic-plastic dampers 1,1 are formed by a plurality of high-strength bolts 6 penetrating the mounting holes 3,3 and the mounting holes (not shown) of the webs 5,5 formed correspondingly. 4 is fixed to the end.
また、第４図は、弾塑性ダンパー１を梁どうしの接合
部に取り付けた状態を示し、弾塑性ダンパー１は左右梁
7,7の接合部に取り付けられている。FIG. 4 shows a state in which the elasto-plastic damper 1 is attached to the joint between the beams.
It is attached to 7,7 joints.
この場合、弾塑性ダンパー１は左右梁7,7のウェブ5,5
間に、双方に跨がり、かつ左右両端部を双方のウェブ5,
5の側部にそれぞれ添え付けて取り付けられている。ま
た、弾塑性ダンパー1,1は取付孔3,3とこれに対応して形
成されたウェブ5,5の取付孔（図省略）とを貫通する複
数本の高力ボルト６によって左右梁7,7の端部に固定さ
れている。In this case, the elastic-plastic damper 1 is composed of the webs 5,5 of the right and left beams 7,7.
In between, straddle both sides, and both left and right ends of both webs 5,
It is attached to each side of 5 alongside. The elastic-plastic dampers 1,1 are provided with a plurality of high-strength bolts 6 penetrating through the mounting holes 3,3 and the mounting holes (not shown) of the webs 5,5 formed in correspondence with the mounting holes 3,3. It is fixed to the end of 7.
さらに、第５図は、弾塑性ダンパー１を梁７と耐震壁
８との接合部に取り付けた状態を示し、弾塑性ダンパー
１は梁７と耐震壁８との接合部に、ブラケット９を介
し、梁７の材軸方向に所定間隔に、複数取り付けられて
いる。FIG. 5 shows a state in which the elasto-plastic damper 1 is attached to the joint between the beam 7 and the earthquake-resistant wall 8. The elasto-plastic damper 1 is connected to the joint between the beam 7 and the earthquake-resistant wall 8 via the bracket 9. And a plurality of beams 7 are attached at predetermined intervals in the material axis direction.
この場合、弾塑性ダンパー１は耐震壁８の上端部と、
梁７の下端部に突設されたブラケット９間に双方に跨が
り、かつ上下両端部を耐震壁８およびブラケット９双方
の側部にそれぞれ添え付けて取り付けられている。In this case, the elastic-plastic damper 1 is connected to the upper end of the
It is straddled on both sides between brackets 9 projecting from the lower end of the beam 7, and both upper and lower ends are attached to both sides of the earthquake-resistant wall 8 and the bracket 9, respectively.
また、弾塑性ダンパー1,1は、取付孔3,3とこれに対応
して形成された耐震壁８およびブラケット９の取付孔
（図省略）とをそれぞれ貫通する複数本の高力ボルト６
によって耐震壁８の上端部とブラケット９にそれぞれ固
定されている。The elasto-plastic dampers 1, 1 are provided with a plurality of high-strength bolts 6 penetrating through the mounting holes 3, 3 and the mounting holes (not shown) for the anti-seismic wall 8 and the bracket 9 formed correspondingly.
With this, it is fixed to the upper end of the earthquake-resistant wall 8 and the bracket 9, respectively.
このような構成において、上下柱4,4間、左右梁7,7
間、又は梁７と耐震壁８間のそれぞれの接合部に水平剪
断力Ｑが作用した場合、弾塑性ダンパー１の中央部が塑
性変形することにより水平剪断力Ｑが吸収される。よっ
て大きな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, between the upper and lower columns 4, 4 and the right and left beams 7, 7
When a horizontal shearing force Q acts on the joint between the beams or between the beam 7 and the earthquake-resistant wall 8, the horizontal shearing force Q is absorbed by plastically deforming the center of the elasto-plastic damper 1. Therefore, brittle destruction of the building due to large seismic energy can be prevented.
第６図および第10図は、弾塑性ダンパー１の他の実施
例を示し、弾塑性ダンパー１の中央部に孔２を形成する
代わりに複数個のスリット10を形成したもので、その他
の構成は第１図および第２図に示す弾塑性ダンパー１と
略同じである。FIG. 6 and FIG. 10 show another embodiment of the elasto-plastic damper 1 in which a plurality of slits 10 are formed in the center of the elasto-plastic damper 1 instead of forming the hole 2. Is substantially the same as the elasto-plastic damper 1 shown in FIG. 1 and FIG.
（発明の効果） この発明に係る弾塑性ダンパーは、以上説明した構成
からなるので、以下の効果を有する。(Effects of the Invention) Since the elasto-plastic damper according to the present invention has the above-described configuration, it has the following effects.
きわめて簡単な形状で有りながら地震エネルギーの
吸収能力が大きく、ダンパーとしての性能がきわめて高
い。Despite its extremely simple shape, it has a large seismic energy absorption capacity and extremely high performance as a damper.
弾塑性ダンパーの厚さ、孔の数および大きさを、こ
の弾塑性ダンパーが取り付けられている構造部材が受け
る地震エネルギーの大きさに応じて適宜変えることによ
り、最も適した剛性、降伏耐力、塑性変形能力を有する
弾塑性ダンパーを提供できるので、無駄のないきわめて
理想的な構造設計ができる。By optimally changing the thickness, number and size of the elasto-plastic damper according to the magnitude of the seismic energy received by the structural member to which the elasto-plastic damper is attached, the most suitable stiffness, yield strength, plasticity Since an elastic-plastic damper having a deformability can be provided, a very ideal structural design without waste can be achieved.
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。Since it has an extremely simple shape, mass production and reduction in manufacturing cost due to mass production can be achieved.
第１図および第２図は、この発明に係る弾塑性ダンパー
を示し、第２図はその正面図、第１図は第２図における
弾塑性ダンパーの縦断面図、第３図〜第５図は、弾塑性
ダンパーの取付状態を示し、第３図は弾塑性ダンパーを
柱どうしの接合部に取り付けた状態を示す正面図、第４
図は弾塑性ダンパーを梁どうしの接合部に取り付けた状
態を示す正面図、第５図は耐震壁どうしの接合部に取り
付けた状態を示す正面図、第６図および第７図は他の弾
塑性ダンパーを示し、第６図はその正面図、第７図は第
６図における弾塑性ダンパーの縦断面図、第８図〜第10
図は弾塑性ダンパーの取付状態を示し、第８図は弾塑性
ダンパーを柱の接合部に取り付けた状態を示す正面図、
第９図は弾塑性ダンパーを梁どうしの接合部に取り付け
た状態を示す正面図、第10図は弾塑性ダンパーを耐震壁
どうしの接合部に取り付けた状態を示す正面図である。 １……弾塑性ダンパー、２……孔、３……取付孔、４…
…柱、５……ウェブ、６……高力ボルト、７……梁、８
……耐震壁、９……ブラケット、10……スリット。1 and 2 show an elasto-plastic damper according to the present invention, FIG. 2 is a front view thereof, FIG. 1 is a longitudinal sectional view of the elasto-plastic damper in FIG. 2, FIG. 3 to FIG. FIG. 3 shows a state in which the elasto-plastic damper is mounted, FIG. 3 is a front view showing a state in which the elasto-plastic damper is mounted on the joint between the columns, and FIG.
FIG. 5 is a front view showing a state where an elasto-plastic damper is attached to a joint between beams, FIG. 5 is a front view showing a state where the elastic-plastic damper is attached to a joint between earthquake-resistant walls, and FIGS. 6 shows a front view of the plastic damper, FIG. 7 shows a longitudinal sectional view of the elasto-plastic damper in FIG. 6, FIG.
The figure shows an attached state of the elasto-plastic damper, and FIG. 8 is a front view showing a state where the elasto-plastic damper is attached to the joint of the column.
FIG. 9 is a front view showing a state in which an elasto-plastic damper is attached to a joint between beams, and FIG. 10 is a front view showing a state in which an elasto-plastic damper is attached to a joint between earthquake-resistant walls. 1 ... Elastic-plastic damper, 2 ... Hole, 3 ... Mounting hole, 4 ...
... pillars, 5 ... webs, 6 ... high-strength bolts, 7 ... beams, 8
…… Shear wall, 9… Bracket, 10… Slit.
───────────────────────────────────────────────────── 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 特開 昭63−68272（ＪＰ，Ａ) ──────────────────────────────────────────────────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 JP-A-63-68272 (JP, A)
Claims (1)
に、これらの構造部材間に跨がり、かつ前記双方の構造
部材の側部にそれぞれボルト止めして取り付けられ、前
記構造部材間の層間変位により変形することによって、
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
性ダンパーにおいて、前記地震エネルギーの大きさに応
じた剛性、降伏耐力および塑性変形能力を有するように
所定の厚さと複数個の孔又はスリットとを有して形成さ
れ、かつ前記構造部材との当接面が平坦に形成されてな
ることを特徴とする弾塑性ダンパー。1. A structural member to be joined, which is joined to the structural member by straddling between the structural members and attached to the side portions of the two structural members by bolts. By being deformed by the interlayer displacement of
An elasto-plastic damper that absorbs seismic energy acting on the structural member has a predetermined thickness and a plurality of holes or slits so as to have rigidity, yield strength, and plastic deformation capacity according to the magnitude of the seismic energy. An elastic-plastic damper characterized in that it is formed in such a manner that a contact surface with the structural member is formed flat.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63097903A JP2658164B2 (en) | 1988-04-20 | 1988-04-20 | Elasto-plastic damper |
| 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 |
|---|---|---|---|
| JP63097903A JP2658164B2 (en) | 1988-04-20 | 1988-04-20 | Elasto-plastic damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01268933A JPH01268933A (en) | 1989-10-26 |
| JP2658164B2 true JP2658164B2 (en) | 1997-09-30 |
Family
ID=14204687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63097903A Expired - Lifetime JP2658164B2 (en) | 1988-01-27 | 1988-04-20 | Elasto-plastic damper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2658164B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0826686B2 (en) * | 1989-11-14 | 1996-03-13 | 鹿島建設株式会社 | Elastic-plastic energy absorption frame |
| JP2805098B2 (en) * | 1990-02-27 | 1998-09-30 | 関西触媒化学株式会社 | Method for producing nickel hydroxide |
| JPH046455U (en) * | 1990-05-08 | 1992-01-21 | ||
| JP2785651B2 (en) * | 1993-09-28 | 1998-08-13 | 鹿島建設株式会社 | Structure damping method |
| JPH09170353A (en) * | 1995-10-18 | 1997-06-30 | Kajima Corp | Damping structure for existing building |
| WO1998036134A1 (en) * | 1997-02-13 | 1998-08-20 | Tanaka Steel Workshop | Joint for steel structure, and combining structure using the same joints for steel structure |
| US7174680B2 (en) | 2002-05-29 | 2007-02-13 | Sme Steel Contractors, Inc. | Bearing brace apparatus |
| US7305799B2 (en) * | 2002-05-29 | 2007-12-11 | Sme Steel Contractors, Inc. | Bearing brace apparatus |
| IL174280A (en) * | 2006-03-13 | 2010-11-30 | Arpal Aluminum Ltd | Energy absorbing element for wall openings and method of use therefor |
| JP5846606B2 (en) * | 2012-09-14 | 2016-01-20 | 日本鋳造株式会社 | Damping damper |
| JP6208623B2 (en) * | 2014-05-21 | 2017-10-04 | 鹿島建設株式会社 | Elasto-plastic damper mounting structure to existing structural members |
| CN114016761B (en) * | 2021-02-09 | 2022-11-22 | 广州大学 | Reinforcing structure and reinforcing method for removing seismic damage connecting beam part |
| CN113982299B (en) * | 2021-02-09 | 2022-11-25 | 广州大学 | Reinforcing device for completely cutting out seismic damage connecting beam and construction method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2726655B2 (en) * | 1986-09-09 | 1998-03-11 | 三菱マテリアル株式会社 | Manufacturing method of lead damper for seismic isolation device |
-
1988
- 1988-04-20 JP JP63097903A patent/JP2658164B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01268933A (en) | 1989-10-26 |
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