JPH0723442Y2 - Steel rod damper - Google Patents
Steel rod damperInfo
- Publication number
- JPH0723442Y2 JPH0723442Y2 JP7961188U JP7961188U JPH0723442Y2 JP H0723442 Y2 JPH0723442 Y2 JP H0723442Y2 JP 7961188 U JP7961188 U JP 7961188U JP 7961188 U JP7961188 U JP 7961188U JP H0723442 Y2 JPH0723442 Y2 JP H0723442Y2
- Authority
- JP
- Japan
- Prior art keywords
- steel rod
- foundation
- cylinder
- laminated
- damper
- 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
Links
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、構造物における上部構造体とその基礎との間
に設け、地震時における地震エネルギーを吸収する鋼棒
ダンパに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a steel rod damper that is provided between an upper structure and a foundation of a structure and absorbs seismic energy during an earthquake.
（従来の技術） 一般にこの種の鋼棒ダンパは、鋼棒自体の塑性変形によ
り地震エネルギーを吸収するものであり、地震時におけ
る構造物の上部構造体とその基礎との間のズレにより生
ずる鋼棒の材軸方向の力を円滑に開放するため、従来は
複雑な機構を要したり、或は大がかりな機構のものとな
っている。(Prior Art) Generally, a steel rod damper of this type absorbs seismic energy by plastic deformation of the steel rod itself, and a steel produced by a gap between an upper structure of a structure and its foundation during an earthquake. In order to smoothly release the force in the axial direction of the rod, conventionally, a complicated mechanism is required or a large-scale mechanism is used.
（考案が解決しようとする課題） このような従来の鋼棒ダンパは、複雑な機構を要した
り、或は大がかりな機構のものであるため、その取り付
け及び取り外しが困難であるといった問題があった。(Problems to be solved by the invention) Such a conventional steel rod damper has a problem that it is difficult to attach and detach because it requires a complicated mechanism or has a large-scale mechanism. It was
本考案は、上記問題に鑑みてなされたものであり、その
目的は構造が簡単であるとともに、取り付け及び取り外
しが容易に行え、かつ地震エネルギーを効果的に吸収で
きる鋼棒ダンパを提供することである。The present invention has been made in view of the above problems, and an object thereof is to provide a steel rod damper that has a simple structure, can be easily attached and detached, and can effectively absorb seismic energy. is there.
（課題を達成するための手段） 以上の課題を達成するための本考案の鋼棒ダンパは、構
造物における上部構造体とその基礎との間に設置して地
震時における地震エネルギーを鋼棒の塑性変形により吸
収する鋼棒ダンパにおいて、前記上部構造体に設けた上
部の鋼棒と、前記基礎に設けた下部の鋼棒との間に軸方
向に作用する力を開放する円筒状緩衝体が設けられ、該
円筒状緩衝体は円筒体内に適宜間隔をもって配設された
上下２段の積層円筒体を有し、前記上部の積層円筒体は
前記上部の鋼棒に、前記下部の積層円筒体は前記下部の
鋼棒にそれぞれ接続されたことを特徴とする構成にする
ことである。(Means for Achieving the Object) The steel rod damper of the present invention for achieving the above object is installed between an upper structure and its foundation in a structure, so that seismic energy during an earthquake In a steel rod damper that absorbs by plastic deformation, a cylindrical shock absorber that releases the force acting in the axial direction between the upper steel rod provided in the upper structure and the lower steel rod provided in the foundation is provided. The cylindrical cushioning body has upper and lower two-layered cylindrical bodies arranged at appropriate intervals in the cylindrical body, the upper laminated cylinder body being the upper steel rod and the lower laminated cylinder body. Is to be connected to each of the lower steel rods.
（作用） 本考案における鋼棒ダンパは上部の鋼棒の上端部が上部
構造体に剛接続されると共に、下部の鋼棒の下端部が基
礎に剛接続されて上部構造体とその基礎との間に設置さ
れる。このように構造部に設置された場合、鋼棒ダンパ
の上部の鋼棒と下部の鋼棒との上端部及び下端部はそれ
ぞれ剛接合されるが、その他端部は円筒状緩衝体内にお
いて軸方向に移動可能な状態で円筒状緩衝体に接続され
ている。(Operation) In the steel rod damper of the present invention, the upper end of the upper steel rod is rigidly connected to the upper structure, and the lower end of the lower steel rod is rigidly connected to the foundation so that the upper structure and its foundation are connected. Installed in between. When installed in such a structure, the upper and lower ends of the upper and lower steel rods of the steel rod damper are rigidly joined, but the other ends are axially aligned in the cylindrical shock absorber. Is movably connected to the cylindrical shock absorber.
したがって地震により上部構造体が基礎に対して水平変
位を生じた場合、上部構造体に剛接続された上部の鋼棒
と基礎に剛接続された下部の鋼棒とが塑性変形して地震
エネルギーを吸収するとともに、これらの鋼棒が斜め方
向に引っ張られて円筒体内における上部の積層円筒体と
下部の積層円筒体とをほぼ円錐状に変形させることによ
り材軸方向に作用する力を円滑に開放して地震エネルギ
ーの吸収を効果的に行なう。Therefore, when an earthquake causes horizontal displacement of the upper structure with respect to the foundation, the upper steel rod rigidly connected to the upper structure and the lower steel rod rigidly connected to the foundation are plastically deformed to increase the seismic energy. In addition to absorbing, these steel rods are pulled in an oblique direction to deform the upper and lower laminated cylinders in the cylindrical body into a substantially conical shape, thereby smoothly releasing the force acting in the axial direction of the material. And effectively absorb the seismic energy.
（実施例） 以下本考案の鋼棒ダンパを図面に基づいて詳細に説明す
る。(Example) The steel rod damper of the present invention will be described in detail below with reference to the drawings.
第１図は本考案の鋼棒ダンパを構造物の上部構造体とそ
の基礎との間に取り付けた状態を示す正面図、第２図は
第１図のａ−ａ線断面図、第３図はほぼ円錐状に変形し
た積層円筒体の断面図である。FIG. 1 is a front view showing a state where the steel rod damper of the present invention is mounted between a superstructure of a structure and its foundation, and FIG. 2 is a sectional view taken along the line aa of FIG. 1, and FIG. [FIG. 3] is a cross-sectional view of a laminated cylindrical body deformed into a substantially conical shape.
この鋼棒ダンパＡは、円筒体4a内に上下２段の積層円筒
体３を備えた円筒状緩衝体４と、該円筒状緩衝体４が中
間部に位置するように前記積層円筒体３に一端が接続固
定された２本の鋼棒５とから構成されている。This steel rod damper A includes a cylindrical cushioning body 4 having two stacked cylinder bodies 3 arranged in an upper and lower direction in a cylindrical body 4a, and the cylindrical cushioning body 4 arranged on the laminated cylinder body 3 so that the cylindrical cushioning body 4 is located at an intermediate portion. It is composed of two steel rods 5, one end of which is connected and fixed.
前記積層円筒体３は、第２図に示すように、最内周の金
属円筒2aの外側にゴム等の弾性円筒１と金属円筒２とが
交互に重ね合わされて接着剤で密接され、その最外周が
弾性円筒1aで形成された積層体になっており、これが前
記弾性円筒１の変形により軸方向に変形する構成になっ
ている。As shown in FIG. 2, the laminated cylindrical body 3 has elastic cylinders 1 made of rubber or the like and metal cylinders 2 alternately superposed on the outside of the innermost metal cylinder 2a and closely adhered by an adhesive. The outer circumference is a laminated body formed of elastic cylinders 1a, which is deformed in the axial direction by the deformation of the elastic cylinders 1a.
そしてこの積層円筒体３が円筒体4a内に所定間隔をもっ
て上下２段に配置され、最外周の弾性円筒1aが円筒体4a
内面に接着剤で接着されて固定されている。Then, the laminated cylindrical body 3 is arranged in two upper and lower stages in the cylindrical body 4a with a predetermined interval, and the outermost elastic cylinder 1a is the cylindrical body 4a.
It is adhered and fixed to the inner surface with an adhesive.
このように構成された円筒状緩衝体４に対して上部の積
層円筒体3aには上部の鋼棒５の一端部が最内周の金属円
筒2aに螺合して接続され、また下部の積層円筒体3bには
下部の鋼棒５の一端部が最内周の金属円筒2aに螺合して
それぞれ接続されている。In the upper laminated cylinder 3a of the cylindrical shock absorber 4 constructed in this manner, one end of the upper steel rod 5 is screwed and connected to the innermost metal cylinder 2a, and the lower laminated cylinder 3a is connected. One end of the lower steel rod 5 is screwed to and connected to the innermost metal cylinder 2a of the cylindrical body 3b.
このような鋼棒ダンパＡは第１図に示すように、上部の
鋼棒５の上端部が上部構造体６に、また下部の鋼棒５の
下端部が基礎７にそれぞれ剛接続されて上部構造体６と
その基礎７との間に適宜数設置される。Such a steel rod damper A is rigidly connected to the upper structure 6 at the upper end of the upper steel rod 5 and to the foundation 7 at the lower end of the lower steel rod 5 as shown in FIG. An appropriate number is installed between the structure 6 and the foundation 7.
この場合、鋼棒ダンパＡは上部の鋼棒５と下部の鋼棒５
との上端部及び下端部がそれぞれ剛接合され、かつその
他端部が円筒状緩衝体４内において軸方向に移動可能な
状態で円筒状緩衝体４に接続されている。In this case, the steel rod damper A includes the upper steel rod 5 and the lower steel rod 5.
The upper and lower ends of and are rigidly joined to each other, and the other ends are connected to the cylindrical shock absorber 4 in a state of being axially movable in the cylindrical shock absorber 4.
したがって、地震により上部構造体６が基礎７に対して
水平変位を生じた場合、鋼棒５が例えば第１図の二点鎖
線で示したように変形するとともに、積層円筒体３も第
３図に示したように変形する。つまり前記の水平変位に
よって上部構造体６に剛接続された上部の鋼棒５と基礎
７に剛接続された下部の鋼棒５とが塑性変形して地震エ
ネルギーを吸収するとともに、これらの鋼棒５が斜め方
向に引っ張られて円筒体4a内における上部の積層円筒体
3aと下部の積層円筒体3bとをほぼ円錐状に変形させるこ
とにより材軸方向に作用する力を円滑に開放して地震エ
ネルギーの吸収を効果的に行なうものである。Therefore, when the upper structure 6 is horizontally displaced with respect to the foundation 7 due to an earthquake, the steel rod 5 is deformed as shown by the chain double-dashed line in FIG. 1, and the laminated cylindrical body 3 is also shown in FIG. It transforms as shown in. That is, due to the horizontal displacement, the upper steel rod 5 rigidly connected to the upper structure 6 and the lower steel rod 5 rigidly connected to the foundation 7 plastically deform to absorb seismic energy, and at the same time, these steel rods are absorbed. 5 is pulled obliquely and the upper laminated cylindrical body in the cylindrical body 4a
By deforming 3a and the lower laminated cylindrical body 3b into a substantially conical shape, the force acting in the axial direction of the material is smoothly released and the seismic energy is effectively absorbed.
（考案の効果） 本考案は以上の様な構成にしたことにより下記の効果を
有する。(Effect of the Invention) The present invention has the following effects by having the above-mentioned configuration.
鋼棒ダンパは上部の鋼棒の上端部が上部構造体に剛
接続されると共に、下部の鋼棒の下端部が基礎に剛接続
されて上部構造体とその基礎との間に設置されたことに
より、地震により上部構造体が基礎に対して水平変位を
生じた場合、上部構造体に剛接続された上部の鋼棒と基
礎に剛接続された下部の鋼棒とが塑性変形して地震エネ
ルギーを吸収するとともに、これらの鋼棒が斜め方向に
引っ張られて円筒体内における上部の積層円筒体と下部
の積層円筒体とをほぼ円錐状に変形させることにより材
軸方向に作用する力を円滑に開放して地震エネルギーの
吸収を効果的に行なうことができる。The steel rod damper was installed between the upper structure and its foundation by rigidly connecting the upper end of the upper steel rod to the upper structure and the lower end of the lower steel rod to the foundation. When the earthquake causes horizontal displacement of the upper structure with respect to the foundation, the upper steel rod rigidly connected to the upper structure and the lower steel rod rigidly connected to the foundation are plastically deformed and seismic energy is increased. And the steel rods are pulled in an oblique direction to deform the upper laminated cylinder and the lower laminated cylinder in the cylindrical body into a substantially conical shape, thereby smoothing the force acting in the axial direction of the material. It can be opened to effectively absorb seismic energy.
弾性円筒と金属円筒とを交互に重ね合わせて形成し
た積層円筒体を円筒体内に適宜間隔をもって上下２段に
設け、この上部の積層円筒体に上部の鋼棒を、また下部
の積層円筒体に下部の鋼棒をそれぞれ取り付けたことに
より鋼棒ダンパの構造が簡単にできるとともに、鋼棒ダ
ンパの構造物への取り付け及び取り外しが容易に行え
る。Laminated cylinders formed by alternately stacking elastic cylinders and metal cylinders are provided in two upper and lower stages in the cylinder at appropriate intervals, and the upper steel rod is attached to the upper one and the lower one is provided. By attaching the lower steel rods respectively, the structure of the steel rod damper can be simplified, and the steel rod damper can be easily attached to and removed from the structure.
第１図は本考案の鋼棒ダンパを構造物の上部構造体とそ
の基礎との間に取り付けた状態を示す正面図、第２図は
第１図のａ−ａ線断面図、第３図は積層円筒体の断面図
である。 A:鋼棒ダンパ 1:弾性円筒 1a:最外周の弾性円筒 2:金属円筒 2a:最内周の金属円筒 3:積層円筒体 3a:上部の積層円筒体 3b:下部の積層円筒体 4:円筒状緩衝体 4a:円筒体 5:鋼棒 6:上部構造体 7:基礎FIG. 1 is a front view showing a state where the steel rod damper of the present invention is mounted between a superstructure of a structure and its foundation, and FIG. 2 is a sectional view taken along the line aa of FIG. 1, and FIG. FIG. 4 is a sectional view of a laminated cylinder. A: Steel rod damper 1: Elastic cylinder 1a: Outermost elastic cylinder 2: Metal cylinder 2a: Innermost metal cylinder 3: Laminated cylinder 3a: Upper laminated cylinder 3b: Lower laminated cylinder 4: Cylinder Shock absorber 4a: Cylindrical body 5: Steel rod 6: Superstructure 7: Foundation
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭61−189342（ＪＰ，Ａ) 実開 昭60−14109（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-61-189342 (JP, A) Sekikai-Sho 60-14109 (JP, U)
Claims (1)
間に設置して地震時における地震エネルギーを鋼棒の塑
性変形により吸収する鋼棒ダンパにおいて、前記上部構
造体に設けた上部の鋼棒と、前記基礎に設けた下部の鋼
棒との間に軸方向に作用する力を開放する円筒状緩衝体
が設けられ、該円筒状緩衝体は円筒体内に適宜間隔をも
って配設された上下２段の積層円筒体を有し、前記上部
の積層円筒体は前記上部の鋼棒に、前記下部の積層円筒
体は前記下部の鋼棒にそれぞれ接続されたことを特徴と
する鋼棒ダンパ。1. A steel rod damper installed between an upper structure of a structure and its foundation to absorb seismic energy at the time of an earthquake by plastic deformation of the steel rod. Between the rod and the lower steel rod provided on the foundation, there is provided a cylindrical cushioning body for releasing the force acting in the axial direction, and the cylindrical cushioning body is arranged in the cylindrical body at an appropriate interval. A steel rod damper comprising a two-stage laminated cylinder, wherein the upper laminated cylinder is connected to the upper steel rod, and the lower laminated cylinder is connected to the lower steel rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7961188U JPH0723442Y2 (en) | 1988-06-16 | 1988-06-16 | Steel rod damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7961188U JPH0723442Y2 (en) | 1988-06-16 | 1988-06-16 | Steel rod damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH021303U JPH021303U (en) | 1990-01-08 |
| JPH0723442Y2 true JPH0723442Y2 (en) | 1995-05-31 |
Family
ID=31304476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7961188U Expired - Lifetime JPH0723442Y2 (en) | 1988-06-16 | 1988-06-16 | Steel rod damper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0723442Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013044409A (en) * | 2011-08-25 | 2013-03-04 | Hrd Singapore Pte Ltd | Seismic isolation state releasing device and seismic isolation structure using the same |
-
1988
- 1988-06-16 JP JP7961188U patent/JPH0723442Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013044409A (en) * | 2011-08-25 | 2013-03-04 | Hrd Singapore Pte Ltd | Seismic isolation state releasing device and seismic isolation structure using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH021303U (en) | 1990-01-08 |
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