JPH1068248A - Base isolation device for structure - Google Patents

Base isolation device for structure

Info

Publication number
JPH1068248A
JPH1068248A JP22678396A JP22678396A JPH1068248A JP H1068248 A JPH1068248 A JP H1068248A JP 22678396 A JP22678396 A JP 22678396A JP 22678396 A JP22678396 A JP 22678396A JP H1068248 A JPH1068248 A JP H1068248A
Authority
JP
Japan
Prior art keywords
base plate
base
foundation
rail
side base
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
Application number
JP22678396A
Other languages
Japanese (ja)
Other versions
JP3434137B2 (en
Inventor
Daisuke Yaguchi
大輔 矢口
Hiroshi Kurabayashi
浩 倉林
Toshio Komi
俊夫 小見
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Steel Mfg Co Ltd
Original Assignee
Mitsubishi Steel Mfg Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Steel Mfg Co Ltd filed Critical Mitsubishi Steel Mfg Co Ltd
Priority to JP22678396A priority Critical patent/JP3434137B2/en
Publication of JPH1068248A publication Critical patent/JPH1068248A/en
Application granted granted Critical
Publication of JP3434137B2 publication Critical patent/JP3434137B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

PROBLEM TO BE SOLVED: To give sufficient holding performance and base isolation effect soft in the horizontal direction to a structure. SOLUTION: This vibration proof structure of a structure is provided with a foundation side base plate 1 to be fixed to the top face of the foundation, the foundation side linear rail 4 fixed to the top face of the foundation side base plate 1, a structure side base plate 8 to be fixed to the lower face of the structure provided above the foundation, a structure side linear rail 7 fixed to the lower face of the structure side base plat 8, which is orthoganal to the foundation side rail 4, a holding member 6 whose lower section is movably engaged with the foundation side rail 4 and upper section is movably engaged with the structure side rail 7 and which transfers the load acting on the structure side base plate 8, and an elastic body 11 mounted between the foundation side base plate 1 and the structure side bas plate 9 so as not to hold the load acting on the structure side base plate 8.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、建物等を地震等の
振動から保護する構造物の免震装置に関するものであ
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic isolation device for a structure for protecting a building or the like from vibration such as an earthquake.

【0002】[0002]

【従来の技術】従来の構造物の免震装置はゴムを積層し
たものが使用されている。
2. Description of the Related Art Conventionally, seismic isolation devices for structures have been used in which rubber is laminated.

【0003】[0003]

【発明が解決しようとする課題】しかしながら従来から
使用されているゴムを積層した免震装置では、積層され
ているゴムが地震等による振動を緩衝する働きをすると
共に、構造物の荷重を支持するようになっているため水
平方向のばね定数が大きくなり、水平方向の振動周期が
1秒から4秒の範囲設定となって十分な免震効果が得ら
れない問題があった。
However, in the conventional seismic isolation device in which rubber is laminated, the laminated rubber functions to buffer vibration caused by an earthquake or the like and supports the load of the structure. As a result, the spring constant in the horizontal direction becomes large, and the horizontal vibration period is set in the range of 1 second to 4 seconds, so that there is a problem that a sufficient seismic isolation effect cannot be obtained.

【0004】また、横方向の寸法に対して高さの高い構
造物、いわゆるペンシルビル等においては、ロッキング
による引き抜き荷重が大きく作用するため、耐久性が得
られない問題があった。
[0004] Further, in a structure having a height higher than a lateral dimension, that is, a so-called pencil building, there is a problem that durability is not obtained because a large pulling load due to locking acts.

【0005】本発明はこのような問題を解消し、水平方
向に柔らかで5秒以上の長い振動周期設定が可能とな
り、構造物に対して十分な支持能力と免震効果とが得ら
れる構造物の免震装置を提供することを目的とするもの
である。
The present invention solves such a problem and makes it possible to set a vibration period that is soft in the horizontal direction and a long vibration period of 5 seconds or more, and that a sufficient supporting capacity and seismic isolation effect can be obtained for the structure. The purpose of the present invention is to provide a seismic isolation device.

【0006】[0006]

【課題を解決するための手段】本発明は、基礎の上面に
固定される基礎側ベースプレートと、該基礎側ベースプ
レートの上面に固定された直線状の基礎側レールと、前
記基礎の上方に設けられる構造物の下面に固定される構
造物側ベースプレートと、前記基礎側レールに対し直交
する方向で前記構造物側ベースプレートの下面に固定さ
れた直線状の構造物側レールと、下部が前記基礎側レー
ルに移動可能に係合すると共に上部が前記構造物側レー
ルに移動可能に係合し前記構造物側ベースプレートに負
荷される荷重を前記基礎側ベースプレートに伝達する支
持部材と、前記構造物側ベースプレートに負荷される荷
重を支持しないように前記基礎側ベースプレートと構造
物側ベースプレートとの間に取り付けた弾性体と、を備
えたことを特徴とする構造物の免震装置に係り、構造物
から構造物側ベースプレートに負荷される荷重は支持部
材によって基礎側ベースプレートに伝達され、弾性体は
構造物の荷重を支持しないため、軟らかくして水平方向
の振動周期を長くすることが可能になる。
SUMMARY OF THE INVENTION The present invention provides a foundation base plate fixed to an upper surface of a foundation, a linear foundation rail fixed to the upper surface of the foundation base plate, and provided above the foundation. A structure-side base plate fixed to the lower surface of the structure, a linear structure-side rail fixed to the lower surface of the structure-side base plate in a direction orthogonal to the base-side rail, and a lower portion of the base-side rail A support member that movably engages with the upper side and movably engages with the structure-side rail and transmits a load applied to the structure-side base plate to the base-side base plate; An elastic body attached between the base side base plate and the structure side base plate so as not to support the applied load. The load applied from the structure to the base plate on the structure side is transmitted to the base plate on the base side by the support member, and the elastic body does not support the load on the structure. Can be lengthened.

【0007】[0007]

【発明の実施の形態】以下、本発明の実施の形態を、図
に基づいて説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

【0008】図1は本発明の実施の形態の一例を部分的
に切断して示した斜視図、図2は本発明の実施の形態の
一例を示す正面図であつて、四角形の平板状に形成され
ている基礎側ベースプレート1の縁部には複数のボルト
挿通孔2が穿設されており、図2に示す基礎3の上面に
載置して基礎3の上面に設けられている図示しない植込
みボルトをボルト挿通孔2に挿通してナットを締め付け
ることにより、基礎3の上面に基礎側ベースプレート1
を固定することができるようになっている。
FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention, and FIG. 2 is a front view showing an embodiment of the present invention. A plurality of bolt insertion holes 2 are formed in the edge of the formed base plate 1, and the bolt insertion holes 2 are mounted on the upper surface of the base 3 shown in FIG. By inserting the studs into the bolt insertion holes 2 and tightening the nuts, the base-side base plate 1
Can be fixed.

【0009】基礎側ベースプレート1の上面には直線状
の基礎側レール4が、図1に示すように基礎側ベースプ
レート1のほぼ中心を通り基礎側ベースプレート1の一
辺に平行するようにして、ボルト5等により固定されて
いる。
On the upper surface of the base-side base plate 1, a linear base-side rail 4 is provided so as to pass through substantially the center of the base-side base plate 1 as shown in FIG. And so on.

【0010】基礎側レール4には、ブロック状に形成し
た支持部材6の下部が移動可能に係合していて、支持部
材6は基礎側レール4に沿う方向にのみ低摩擦で移動で
きるようになっている。
A lower portion of a block-shaped support member 6 is movably engaged with the base rail 4 so that the support member 6 can move with low friction only in a direction along the base rail 4. Has become.

【0011】支持部材6の上部には、基礎側レール4に
直交する方向に水平に配置した構造物側レール7が移動
可能に係合していて、構造物側レール7は支持部材6に
対し、構造物側レール7の長手方向である基礎側レール
4に直交する方向にのみ低摩擦で移動できるようになっ
ている。
A structure side rail 7 horizontally arranged in a direction perpendicular to the base side rail 4 is movably engaged with the upper portion of the support member 6. It can move with low friction only in a direction perpendicular to the base side rail 4 which is a longitudinal direction of the structure side rail 7.

【0012】基礎側ベースプレート1の上方には、四角
形の平板状に形成されている構造物側ベースプレート8
が配置されるようになっていて、構造物側ベースプレー
ト8に穿設されているボルト挿通孔9と構造物側レール
7の上面に穿設されているボルト螺入孔10とに図示し
ないボルトを挿入することによって、構造物側ベースプ
レート8の下面に構造物側レール7を固定することがで
きるようになっている。
Above the base-side base plate 1, a structure-side base plate 8 formed in a rectangular flat plate shape is provided.
The bolt (not shown) is inserted into a bolt insertion hole 9 formed in the structure-side base plate 8 and a bolt screw hole 10 formed in the upper surface of the structure-side rail 7. By inserting, the structure-side rail 7 can be fixed to the lower surface of the structure-side base plate 8.

【0013】前述したように、構造物側レール7は支持
部材6に対しては基礎側レール4に直交する方向にのみ
移動可能であるため、構造物側レール7を固定した構造
物側ベースプレート8は、構造物側レール7と共に支持
部材6に対して基礎側レール4に直交する方向にのみ移
動できることになり、構造物側ベースプレート8が基礎
側レール4に平行の方向に移動する時には、支持部材6
を伴いながら基礎側レール4に沿って移動できることに
なる。
As described above, the structure-side rail 7 is movable only in the direction orthogonal to the base-side rail 4 with respect to the support member 6, and therefore, the structure-side base plate 8 to which the structure-side rail 7 is fixed. Can move only together with the structure-side rail 7 with respect to the support member 6 in a direction perpendicular to the base-side rail 4. When the structure-side base plate 8 moves in a direction parallel to the base-side rail 4, the support member 6
It is possible to move along the base side rail 4 while accompanied by.

【0014】上述した基礎側ベースプレート1の上面と
構造物側ベースプレート8の下面との間には、圧縮され
ていない自由状態のゴム等の弾性体11が取り付けられ
る。弾性体11は圧縮されない自由状態で取り付けられ
ているため、構造物側ベースプレート8に負荷される荷
重は、構造物側ベースプレート8から構造物側レール
7、支持部材6、基礎側レール4を介して基礎側ベース
プレート1に伝達され、弾性体11は、構造物側ベース
プレート8側の荷重を全く支持しないようになってい
る。
Between the upper surface of the above-described base side base plate 1 and the lower surface of the structure side base plate 8, an elastic body 11 such as rubber which is not compressed and is in a free state is attached. Since the elastic body 11 is attached in a free state in which it is not compressed, the load applied to the structure-side base plate 8 is transmitted from the structure-side base plate 8 via the structure-side rail 7, the support member 6, and the base-side rail 4. The elastic body 11 is transmitted to the base side base plate 1 and does not support the load on the structure side base plate 8 at all.

【0015】上記のように構成されている構造物の免震
装置の構造物側ベースプレート8は、図2に示すように
建物等の構造物12の下面の複数箇所に固定され、構造
物12は、構造物側ベースプレート8、構造物側レール
7、支持部材6、基礎側レール4、基礎側ベースプレー
ト1を介して基礎3の上面に支持される。
As shown in FIG. 2, the structure-side base plate 8 of the seismic isolation device for a structure configured as described above is fixed to a plurality of locations on the lower surface of a structure 12 such as a building. It is supported on the upper surface of the foundation 3 via the structure-side base plate 8, the structure-side rail 7, the support member 6, the foundation-side rail 4, and the foundation-side base plate 1.

【0016】地震等の振動によって構造物12に変位す
る力が作用すると、その変位力の基礎側レール4に平行
方向の分力によって、構造物12は構造物側ベースプレ
ート8、構造物側レール7、支持部材6を伴いながら、
図3に示すように基礎側レール4に沿って移動する。
When a force displacing the structure 12 due to vibrations such as an earthquake acts on the structure side base plate 8 and the structure side rail 7 by a component force of the displacement force in a direction parallel to the base side rail 4. , With the support member 6
It moves along the base side rail 4 as shown in FIG.

【0017】構造物側ベースプレート8が移動すると、
弾性体11の上部も構造物側ベースプレート8と共に基
礎側レール4に平行な方向に移動して変形し、その復元
力によって構造物側ベースプレート8及び構造物12を
元の位置に戻そうとする。
When the structure-side base plate 8 moves,
The upper part of the elastic body 11 also moves along with the structure-side base plate 8 in a direction parallel to the base-side rail 4 and is deformed, and the restoring force attempts to return the structure-side base plate 8 and the structure 12 to their original positions.

【0018】また地震等の振動によって構造物12に作
用する変位力の構造物側レール7に平行方向の分力によ
って、構造物12は構造物側ベースプレート8、構造物
側レール7と共に支持部材6に対して構造物側レール7
に平行な方向に移動する。この際にも弾性体11の上部
は構造物側ベースプレート8と共に構造物側レール7に
平行な方向に移動変形し、その復元力によって構造物側
ベースプレート8及び構造物12を元の位置に戻そうと
する。
The structure 12 is supported by the supporting member 6 together with the structure-side base plate 8 and the structure-side rail 7 by the component force of the displacement force acting on the structure 12 in the direction parallel to the structure-side rail 7 due to vibrations such as earthquakes. Structure side rail 7
Move in a direction parallel to. Also at this time, the upper part of the elastic body 11 moves and deforms in the direction parallel to the structure-side rail 7 together with the structure-side base plate 8, and the structure-side base plate 8 and the structure 12 are returned to their original positions by the restoring force. And

【0019】このように構造物12の振動による変位
は、基礎側レール4に平行な方向と、それに直交する構
造物側レール7に平行な方向とに分けられ、それぞれ支
持部材6と構造物側レール7とが移動し、これに対して
弾性体11が構造物12を元の位置に戻そうとする。
As described above, the displacement of the structure 12 due to the vibration is divided into a direction parallel to the base side rail 4 and a direction parallel to the structure side rail 7 orthogonal to the base side rail 4. The rail 7 moves, and the elastic body 11 attempts to return the structure 12 to the original position.

【0020】そして弾性体11は構造物側ベースプレー
ト8側の荷重を全く支持しないためばね定数を小さく
し、水平方向に柔らかで5秒以上の振動周期の有効な免
震性能を得ることが可能になる。
Since the elastic body 11 does not support the load on the structure-side base plate 8 at all, the spring constant is reduced, and it is possible to obtain an effective seismic isolation performance having a vibration period of 5 seconds or more which is soft in the horizontal direction. Become.

【0021】[0021]

【発明の効果】本発明は、弾性体の固有周期を長くして
十分な免震性能を得ることができ、直線状の基礎側レー
ルと構造物側レールとによって変位方向を拘束している
ため、建造物のロッキング、ヨーイングを防止すること
ができ、ロッキング時の引き抜き耐荷重が大きいので、
高層ビルやいわゆるペンシルビルにも適用することがで
きる効果がある。
According to the present invention, the natural period of the elastic body can be extended to obtain sufficient seismic isolation performance, and the displacement direction is restrained by the linear base-side rail and the structural-side rail. It can prevent rocking and yawing of buildings, and has a large pull-out load when locking.
There is an effect that can be applied to high-rise buildings and so-called pencil buildings.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の実施の形態の一例を部分的に切断して
示した斜視図である。
FIG. 1 is a perspective view showing an example of an embodiment of the present invention by partially cutting it.

【図2】本発明の実施の形態の一例の正面図である。FIG. 2 is a front view of an example of the embodiment of the present invention.

【図3】本発明の実施の形態の作用状態を示す正面図で
ある。
FIG. 3 is a front view showing an operation state of the embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1 基礎側ベースプレート 3 基礎 4 基礎側レール 6 支持部材 7 構造物側レール 8 構造物側ベースプレート 11 弾性体 12 構造物 REFERENCE SIGNS LIST 1 base side base plate 3 base 4 base side rail 6 support member 7 structure side rail 8 structure side base plate 11 elastic body 12 structure

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 基礎の上面に固定される基礎側ベースプ
レートと、該基礎側ベースプレートの上面に固定された
直線状の基礎側レールと、前記基礎の上方に設けられる
構造物の下面に固定される構造物側ベースプレートと、
前記基礎側レールに対し直交する方向で前記構造物側ベ
ースプレートの下面に固定された直線状の構造物側レー
ルと、下部が前記基礎側レールに移動可能に係合すると
共に上部が前記構造物側レールに移動可能に係合し前記
構造物側ベースプレートに負荷される荷重を前記基礎側
ベースプレートに伝達する支持部材と、前記構造物側ベ
ースプレートに負荷される荷重を支持しないように前記
基礎側ベースプレートと構造物側ベースプレートとの間
に取り付けた弾性体と、を備えたことを特徴とする構造
物の免震装置。
1. A base-side base plate fixed to an upper surface of a base, a linear base-side rail fixed to an upper surface of the base-side base plate, and fixed to a lower surface of a structure provided above the base. A structure side base plate,
A linear structure-side rail fixed to the lower surface of the structure-side base plate in a direction perpendicular to the foundation-side rail, and a lower portion movably engaged with the base-side rail and an upper portion on the structure side. A support member that movably engages a rail and transmits a load applied to the structure-side base plate to the base-side base plate; and the base-side base plate so as not to support the load applied to the structure-side base plate. An seismic isolation device for a structure, comprising: an elastic body attached between the base plate and the structure.
JP22678396A 1996-08-28 1996-08-28 Seismic isolation device for structures Expired - Fee Related JP3434137B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22678396A JP3434137B2 (en) 1996-08-28 1996-08-28 Seismic isolation device for structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22678396A JP3434137B2 (en) 1996-08-28 1996-08-28 Seismic isolation device for structures

Publications (2)

Publication Number Publication Date
JPH1068248A true JPH1068248A (en) 1998-03-10
JP3434137B2 JP3434137B2 (en) 2003-08-04

Family

ID=16850551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22678396A Expired - Fee Related JP3434137B2 (en) 1996-08-28 1996-08-28 Seismic isolation device for structures

Country Status (1)

Country Link
JP (1) JP3434137B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000291732A (en) * 1999-04-05 2000-10-20 Taisei Corp Compound base isolation unit and base isolation structure
JP2006009848A (en) * 2004-06-23 2006-01-12 Yasuo Fukuda Base isolating device
JP2011213456A (en) * 2010-03-31 2011-10-27 Mitsui Eng & Shipbuild Co Ltd Base isolation crane
JP2014114940A (en) * 2012-12-12 2014-06-26 Tokkyokiki Corp Rail sliding type aseismic base isolation device
KR101600915B1 (en) * 2015-11-27 2016-03-08 (주)파워엔텍 Vibration Isolation System Equipped with Two-dimensional Damping Device
JP6312010B1 (en) * 2017-03-13 2018-04-18 興基 玉田 Slide attenuator
JP2021107742A (en) * 2016-12-06 2021-07-29 株式会社免制震ディバイス Linear rolling bearing
KR102550227B1 (en) * 2022-11-17 2023-06-30 주식회사 큐원 Base isolation system for supporting show case

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000291732A (en) * 1999-04-05 2000-10-20 Taisei Corp Compound base isolation unit and base isolation structure
JP2006009848A (en) * 2004-06-23 2006-01-12 Yasuo Fukuda Base isolating device
JP2011213456A (en) * 2010-03-31 2011-10-27 Mitsui Eng & Shipbuild Co Ltd Base isolation crane
JP2014114940A (en) * 2012-12-12 2014-06-26 Tokkyokiki Corp Rail sliding type aseismic base isolation device
KR101600915B1 (en) * 2015-11-27 2016-03-08 (주)파워엔텍 Vibration Isolation System Equipped with Two-dimensional Damping Device
JP2021107742A (en) * 2016-12-06 2021-07-29 株式会社免制震ディバイス Linear rolling bearing
JP6312010B1 (en) * 2017-03-13 2018-04-18 興基 玉田 Slide attenuator
KR102550227B1 (en) * 2022-11-17 2023-06-30 주식회사 큐원 Base isolation system for supporting show case

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