JPH04169665A - Steel bar damper device for base isolation and vibration control - Google Patents
Steel bar damper device for base isolation and vibration controlInfo
- Publication number
- JPH04169665A JPH04169665A JP29524190A JP29524190A JPH04169665A JP H04169665 A JPH04169665 A JP H04169665A JP 29524190 A JP29524190 A JP 29524190A JP 29524190 A JP29524190 A JP 29524190A JP H04169665 A JPH04169665 A JP H04169665A
- Authority
- JP
- Japan
- Prior art keywords
- steel rod
- building
- foundation
- steel bar
- cross
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 41
- 239000010959 steel Substances 0.000 title claims abstract description 41
- 238000002955 isolation Methods 0.000 title claims description 9
- 238000013016 damping Methods 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Dampers (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は免震、制振建物の振動を小さくする鋼棒ダンパ
ー装置に係るものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a steel rod damper device for reducing vibrations in a seismic isolation and damping building.
（従来の技術）
第７図乃至第９図は従来の免震建物において使用されて
いる鋼棒ダンパー装置に係るもので、建物ａと基礎すと
の間に鋼棒ダンパーＣが配設され、地震時等において建
物ａと基礎すとの間に生起した相対変位δにより塑性変
形を生起し、ダンパーとしての機能を発揮するように構
成されている。(Prior art) Figures 7 to 9 relate to steel rod damper devices used in conventional seismically isolated buildings, in which a steel rod damper C is arranged between a building a and a foundation, It is configured to cause plastic deformation due to the relative displacement δ that occurs between the building a and the foundation during an earthquake, etc., and to function as a damper.
而して前記鋼棒ダンパーＣの建物ａ及び基礎すに対する
固定部は軸方向に滑るように球面軸受ｄを介して支承さ
れ、ｇ棒ダンパーＣの大変形に追随できるようになって
いる。The fixing portion of the steel bar damper C to the building a and the foundation is supported via a spherical bearing d so as to slide in the axial direction, so that it can follow large deformations of the g bar damper C.
（発明が解決しようとする課題）
前記鋼棒ダンパー装置においては、球面軸受を使用し、
鋼棒を建物、基礎に設けた軸受内で滑るように構成され
ているので、鋼棒の加工、及び球面軸受部の加工に高い
精度が要求され、コストもかかる。(Problem to be solved by the invention) In the steel rod damper device, a spherical bearing is used,
Since the steel rod is configured to slide within a bearing installed in the building or foundation, high precision is required in machining the steel rod and the spherical bearing portion, which is costly.
また発錆によって鋼棒が軸受の中を滑動しなくなる可能
性があり、メンテナンスも必要となる。Additionally, due to rusting, the steel rod may no longer slide inside the bearing, requiring maintenance.
本発明は前記従来技術の有する問題点に鑑みて提案され
たもので、その目的とする処は、構造が簡単で、施工が
容易であり、メンテナンスが不要で、経済性に優れた免
震、制振用鋼棒ダンパー装置を提供する点にある。The present invention has been proposed in view of the problems of the prior art, and aims to provide a seismic isolation system that is simple in structure, easy to construct, requires no maintenance, and is highly economical. The present invention provides a steel rod damper device for damping vibrations.
（課題を解決するための手段）
前記の目的を達成するため、本発明に係る免震、制振用
鋼棒ダンパー装置は、各自由端部が建物に固定治具を介
して固定された十字状プレートの交叉部と、基礎に定着
された固定治具に鋼棒の上下端を取付けてなり、前記建
物と基礎との間に生起する相対変形に伴って前記鋼棒を
塑性変形させ、振動エネルギーを塑性エネルギーとして
吸収するように構成されている。(Means for Solving the Problems) In order to achieve the above object, the steel rod damper device for seismic isolation and vibration damping according to the present invention has a cross section with each free end fixed to a building via a fixing jig. The upper and lower ends of the steel rod are attached to the intersection of the shaped plates and a fixture fixed to the foundation, and the steel rod is plastically deformed in accordance with the relative deformation that occurs between the building and the foundation, and the vibration is reduced. It is configured to absorb energy as plastic energy.
（作用）
本発明は前記したように構成されているので、地震時等
において建物と基礎との間に相対変形を生じると、下端
部を同基礎に固定治具を介して固定され、上端部を建物
に固定治具を介して固定された十字状プレートの交叉部
に固定された鋼棒が曲がり、この曲がりが欽棒を塑性化
させると、同鋼棒がダンパーとして働き、振動エネルギ
ーを塑性エネルギーとして吸収し、建物の振動を小さく
する。(Function) Since the present invention is configured as described above, when relative deformation occurs between the building and the foundation during an earthquake, etc., the lower end is fixed to the foundation via the fixing jig, and the upper end The steel rod fixed to the intersection of the cross-shaped plates fixed to the building via a fixing jig bends, and when this bending causes the rod to become plastic, the steel rod acts as a damper and plasticizes the vibration energy. It absorbs energy and reduces vibrations in buildings.
この際、前記鋼棒は前記十字状のプレートによって軸方
向力（引抜き力）を受けるが、同プレートの断面及びプ
レートの支持点までの距離を適当に選択することによっ
て、前記軸方向力を低減することができる。At this time, the steel rod is subjected to an axial force (pulling force) by the cross-shaped plate, but the axial force is reduced by appropriately selecting the cross section of the plate and the distance to the support point of the plate. can do.
（実施例） 以下本発明を図示の実施例について説明する。(Example) The present invention will be described below with reference to the illustrated embodiments.
Ａは建物、Ｂは基礎で、同建物Ａに各自由端部がプレー
ト固定治具１を介して固定された十字状プレート２の交
叉部と、基礎Ｂに定着された固定治具３に鋼棒４の上端
部並に下端部が夫々固定されている。A is a building, and B is a foundation, where each free end of the cross-shaped plate 2 is fixed to the building A via a plate fixing jig 1, and a steel plate is attached to a fixing jig 3 fixed to the foundation B. The upper and lower ends of the rod 4 are fixed respectively.
図示の実施例は前記したように構成されているので、地
震により建物Ａと基［Ｂとの間に相対変形を生しると、
第３図に示すように鋼棒４が曲る。Since the illustrated embodiment is constructed as described above, if a relative deformation occurs between the building A and the base [B] due to an earthquake,
As shown in FIG. 3, the steel rod 4 is bent.
同鋼棒４の変形が進み、塑性化すると、振動エネルギー
は塑性エネルギーに変り、建物Ａの振動が小さくなる。As the steel rod 4 deforms and becomes plastic, the vibration energy changes to plastic energy, and the vibration of the building A becomes smaller.
この際、鋼棒４は十字状プレート２から軸方向力、即ち
鋼棒４の引き抜き力を受けるが、この力はプレート２の
断面形状、固定部分までの距離を適切に選定することに
よって、軽減することができる。At this time, the steel rod 4 receives an axial force from the cross-shaped plate 2, that is, a force for pulling out the steel rod 4, but this force can be reduced by appropriately selecting the cross-sectional shape of the plate 2 and the distance to the fixed part. can do.
なお前記プレート２を十字状に組合わせたのは、水平２
方向からの変形に追従しうるようにしたものであって水
平一方向にしか変形を生じない場合は、プレートを一方
向にすればよい。The plates 2 are combined in a cross shape in a horizontal manner.
If the plate is designed to be able to follow deformation in one direction and the deformation only occurs in one horizontal direction, the plate may be made in one direction.
第４図は本発明の他の実施例を示し、鋼棒４は各位置で
のモーメントに比例した全塑性モーメントとなるように
、荷重点からの距離に塑性断面係数を比例させるように
、半径が漸変されている。FIG. 4 shows another embodiment of the present invention, in which the steel rod 4 has a radius such that the plastic section modulus is proportional to the distance from the load point so that the total plastic moment is proportional to the moment at each position. is being gradually changed.
図中前記実施例と均等部分には同一符号が附されている
。In the figure, parts equivalent to those of the above embodiment are given the same reference numerals.
第５図は鋼棒４の半径の決定方向を示し鋼棒ダンパーの
上部はプレート１に取付けるために大径に形成され、半
径Ｔが漸変している部分は全体が塑性化するため、変形
が大きくなり、繰り返し変形に対する耐久性も高くなる
。Figure 5 shows the direction in which the radius of the steel rod 4 is determined.The upper part of the steel rod damper is formed to have a large diameter in order to be attached to the plate 1, and the portion where the radius T gradually changes becomes plastic as a whole, so it deforms. becomes larger, and the durability against repeated deformation also becomes higher.
なお第６図は本発明に係る鋼棒ダンパーを具えた免震、
制振建物を示し、図中Ｃは積層ゴムである。Fig. 6 shows a seismic isolation system equipped with a steel rod damper according to the present invention.
A vibration-damping building is shown, and C in the figure is a laminated rubber.
（発明の効果）
本発明に係る免震、制振用鋼棒ダンパー装置は、建物に
自由端を固定治具を介して固定された十字状プレートの
交叉部と、基礎に定着された固定治具に鋼棒の上下端を
夫々取付けて構成され、地震時等において建物と基礎と
の間に相対変形を生起したとき、鋼棒を塑性変形させ、
振動エネルギーを塑性エネルギーとして吸収し、振動を
小さくするようにしたものであって、構造が簡単で、施
工も容易でメンテナンスを不要ならしめ、コストを大幅
に節減したものである。(Effects of the Invention) The steel rod damper device for seismic isolation and vibration damping according to the present invention consists of a crossing portion of a cross-shaped plate whose free end is fixed to a building via a fixing jig, and a fixed jig fixed to a foundation. It is constructed by attaching the upper and lower ends of a steel rod to a tool, and when relative deformation occurs between the building and the foundation during an earthquake, etc., the steel rod is plastically deformed,
This device absorbs vibration energy as plastic energy to reduce vibration, has a simple structure, is easy to install, requires no maintenance, and significantly reduces costs.
第１図は本発明に係る免震、制振用鋼棒ダンパー装置の
一実施例を示す立面図で、第２図の矢視■−■図、第２
図はその底面図、第３図は鋼棒ダンパーの変形状態を示
す立面図、第４図は本発明の他の実施例を示す立面図、
第５図は鋼棒の半径の決定方法を示す説明図、第６図は
本発明の装置を具えた免震、制振建物の立面図、第７図
は従来の鋼棒ダンパー装置の縦断面図、第８図及び第９
図は夫々従来の鋼棒ダンパー設置時並に変形時の状態を
示す縦断面図である。
Ａ・・・建物、 Ｂ・・・基礎、１・・プ
レート固定治具、 ２・・・プレート、３・・・固定
治具、 ４・・・銅棒。
代理人 弁理士 岡 本 重 文
外１名
第３図
第６図
第８図
第７図
１１−、．１
′ σFig. 1 is an elevational view showing one embodiment of the steel rod damper device for seismic isolation and damping according to the present invention, and the
The figure is a bottom view, FIG. 3 is an elevational view showing a deformed state of the steel rod damper, and FIG. 4 is an elevational view showing another embodiment of the present invention.
Figure 5 is an explanatory diagram showing the method for determining the radius of a steel rod, Figure 6 is an elevation view of a seismic isolation and damping building equipped with the device of the present invention, and Figure 7 is a longitudinal section of a conventional steel rod damper device. Front view, Figures 8 and 9
The figures are longitudinal cross-sectional views showing the state of a conventional steel bar damper when it is installed and when it is deformed. A... Building, B... Foundation, 1... Plate fixing jig, 2... Plate, 3... Fixing jig, 4... Copper rod. Agent: Patent attorney Shige Okamoto (1 person) Fig. 3 Fig. 6 Fig. 8 Fig. 7 Fig. 11-, . 1 ′ σ
Claims (1)
プレートの交叉部と、基礎に定着された固定治具に鋼棒
の上下端を取付けてなり、前記建物と基礎との間に生起
する相対変形に伴って前記鋼棒を塑性変形させ、振動エ
ネルギーを塑性エネルギーとして吸収するように構成さ
れたことを特徴とする免震、制振用鋼棒ダンパー装置。The intersection between the cross-shaped plates, each free end of which is fixed to the building via a fixing jig, and the upper and lower ends of a steel rod attached to the fixing jig fixed to the foundation, between the building and the foundation. A steel rod damper device for seismic isolation and damping, characterized in that the steel rod is plastically deformed in accordance with relative deformation occurring in the steel rod, and is configured to absorb vibration energy as plastic energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29524190A JP2511319B2 (en) | 1990-11-02 | 1990-11-02 | Steel rod damper device for seismic isolation and vibration control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29524190A JP2511319B2 (en) | 1990-11-02 | 1990-11-02 | Steel rod damper device for seismic isolation and vibration control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04169665A true JPH04169665A (en) | 1992-06-17 |
| JP2511319B2 JP2511319B2 (en) | 1996-06-26 |
Family
ID=17818045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29524190A Expired - Fee Related JP2511319B2 (en) | 1990-11-02 | 1990-11-02 | Steel rod damper device for seismic isolation and vibration control |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2511319B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5595040A (en) * | 1994-07-20 | 1997-01-21 | National Science Council | Beam-to-column connection |
| US6012256A (en) * | 1996-09-11 | 2000-01-11 | Programmatic Structures Inc. | Moment-resistant structure, sustainer and method of resisting episodic loads |
| JP2017082848A (en) * | 2015-10-26 | 2017-05-18 | センクシア株式会社 | Aseismic base isolation damper |
-
1990
- 1990-11-02 JP JP29524190A patent/JP2511319B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5595040A (en) * | 1994-07-20 | 1997-01-21 | National Science Council | Beam-to-column connection |
| US6012256A (en) * | 1996-09-11 | 2000-01-11 | Programmatic Structures Inc. | Moment-resistant structure, sustainer and method of resisting episodic loads |
| JP2017082848A (en) * | 2015-10-26 | 2017-05-18 | センクシア株式会社 | Aseismic base isolation damper |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2511319B2 (en) | 1996-06-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |