JPH0376973A - Replacement of vibration-proof laminated rubber - Google Patents
Replacement of vibration-proof laminated rubberInfo
- Publication number
- JPH0376973A JPH0376973A JP21239089A JP21239089A JPH0376973A JP H0376973 A JPH0376973 A JP H0376973A JP 21239089 A JP21239089 A JP 21239089A JP 21239089 A JP21239089 A JP 21239089A JP H0376973 A JPH0376973 A JP H0376973A
- Authority
- JP
- Japan
- Prior art keywords
- laminated rubber
- foundation
- guide plate
- superstructure
- jack
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000002955 isolation Methods 0.000 claims description 20
- 238000010276 construction Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 239000004809 Teflon Substances 0.000 abstract description 2
- 229920006362 Teflon® Polymers 0.000 abstract description 2
- 230000002452 interceptive effect Effects 0.000 abstract 1
- 238000013016 damping Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
この発明は、免震構造物における基礎と上ＩＩ造物間に
配置しｔ二免震用積層ゴムの取替施工法に関する。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method for replacing laminated rubber for seismic isolation placed between the foundation and upper structure of a seismic isolation structure.
「従来技術およびその課題」
近年、免震構造システムは事務所ビル、マンション、独
身寮などに実際に採用されるケースが増えてきている。``Conventional technology and its issues'' In recent years, seismic isolation structural systems have been increasingly used in office buildings, condominiums, dormitories for singles, and other buildings.
それらの免震構造システムは一般に良く知られているよ
うに、水平剛性の非常に小さい積層ゴムを用いて、建物
の固有周期を伸ばし、大きな加速度が建物に伝わらない
ようにしている。As is generally well known, these seismic isolation structural systems use laminated rubber with very low horizontal stiffness to extend the building's natural period and prevent large accelerations from being transmitted to the building.
さらには、上記積層ゴムに粘性ダンパー、鋼材ダンパー
、鉛ダンパーや摩擦ダンパーなどのエネルギー吸収装置
を組み合わせて、中小から大地震の範囲に至るまで建物
の加速度応答が小さくなるように工夫されている。また
、積層ゴム自体に減衰性能を有する高減衰積層ゴムを用
いているものも見られる。Furthermore, energy absorbing devices such as viscous dampers, steel dampers, lead dampers, and friction dampers are combined with the laminated rubber to reduce the acceleration response of buildings from small to large earthquakes. There are also some that use high-damping laminated rubber that has damping performance in the laminated rubber itself.
このような免震建物は、積層ゴムを一度配置しておけば
半永久的にその免震作用を発揮できるものでなく、積層
ゴムは常時上部構造物により加圧されて弾性が劣化する
ものであるから、かかる積層ゴムを定期的に取り替える
必要がある。In such seismic isolation buildings, once the laminated rubber is placed, it cannot exert its seismic isolation effect semi-permanently, and the laminated rubber is constantly pressurized by the superstructure and its elasticity deteriorates. Therefore, it is necessary to periodically replace such laminated rubber.
しかしながら、上記積層ゴムは、基礎と上部構造物との
間にボルト接合され常時圧接状態とされているから、人
手による取り替え作業が困難であり、しかも危険作業を
伴う恐れがあった・この発明は、このような背景に鑑み
て提案されたもので、免震構造物における基礎および上
部構造物間に取り付けられた積層ゴムを容易にかつ安全
に取り替えることのできる免震用積層ゴムの取替施工法
を提供することを目的としている。However, since the above-mentioned laminated rubber is bolted between the foundation and the superstructure and is in constant pressure contact, it is difficult to replace it manually, and there is a risk that it may involve dangerous work. , was proposed in view of this background, and is a replacement construction for laminated rubber for seismic isolation that can easily and safely replace the laminated rubber installed between the foundation and superstructure of a seismic isolation structure. The purpose is to provide law.
「課題を解決するための手１段」
この発明は、免震構造物における基礎および上部構造物
間に配置した積層ゴムを取り替える施工法であって、前
記基礎部および上部構造物間に複数のジヤツキを設置し
、各ジヤツキを均等に伸長して上部構造物を若干持ち上
げ、これにより積層ゴムを浮かしつつ基礎との間に案内
板を挿入し、この状態で案内板に沿って積層ゴムを引き
出す一方、案内板に沿って新たな積層ゴムを基礎および
上下構造物間に引き込んで所定位置に配置した後、案内
板を撤去しかつジヤツキを縮めて上部構造物を元の高さ
に戻すようにしたものである。``One Means for Solving the Problems'' The present invention is a construction method for replacing laminated rubber placed between the foundation and superstructure in a seismic isolation structure, which Install the jacks, stretch each jack evenly to lift the superstructure slightly, and while floating the laminated rubber, insert a guide plate between it and the foundation, and in this state pull out the laminated rubber along the guide plate. On the other hand, after pulling new laminated rubber along the guide plate between the foundation and upper and lower structures and placing it in the specified position, the guide plate was removed and the jacks were reduced to return the upper structure to its original height. This is what I did.
「作用」
この発明の免震用積層ゴムの取替施工法によれば、ジャ
、キを用いて上部構造物を若干持ち上げ、その状態で基
礎および上部構造物間の積層ゴムを案内板に沿って容易
に引き出し可能とする。また、この状・態で案内板に沿
って新たな積層ゴムを基礎および上部構造物間に引き込
み可能とし、後は案内板を撤去しかつジヤツキを縮めて
上部構造物を元の高さに戻せば、積層ゴムを安全に取り
替え完了する。"Operation" According to the method of replacing laminated rubber for seismic isolation of this invention, the superstructure is slightly lifted using a jack, and in that state, the laminated rubber between the foundation and the superstructure is moved along the guide plate. so that it can be easily pulled out. In addition, in this condition, new laminated rubber can be drawn between the foundation and superstructure along the guide plate, and then the guide plate can be removed and the jacks reduced to return the superstructure to its original height. If so, the laminated rubber can be safely replaced.
「実施例」
以下、この」明の実施例について図面を参照して説明す
る。``Example'' Hereinafter, an example of this invention will be described with reference to the drawings.
第１図はこの１朋が適用される免震構造物の要部断面図
、第２図はその平面図を示している。Figure 1 shows a sectional view of the main part of a seismic isolation structure to which this method is applied, and Figure 2 shows its plan view.
先に免震構造物の免震システムを説明すると、免震シス
テムは、十字方向に基礎梁１を形成する基礎２と、その
上部構造物である柱３と、これら基礎２および住３間に
配置された積層ゴム４とから構成されている。積層ゴム
４は、円板状の弾性ゴムと鉄板を上下方向に積層してな
る減衰部５と、減衰部５の上下に接合された上下フラン
ジ６．７とから構成されている。かかる積層ゴム４は、
上フランジ６が柱３の下端にボルト接合され、下フラン
ジ７が基礎２の上端にボルト接合され、これにより基礎
２および柱３間に配置されている。このような積層ゴム
４は、各基礎２および各社３ごとに配置されて免震シス
テム全体が構成されている。First, to explain the base isolation system of a base isolation structure, the base isolation system consists of a foundation 2 that forms the foundation beam 1 in a cross direction, a column 3 that is the upper structure of the foundation 2, and a structure between the foundation 2 and the building 3. It is composed of laminated rubber 4 arranged. The laminated rubber 4 is composed of a damping section 5 formed by vertically stacking disc-shaped elastic rubber and iron plates, and upper and lower flanges 6.7 joined to the upper and lower sides of the damping section 5. Such laminated rubber 4 is
An upper flange 6 is bolted to the lower end of the column 3, and a lower flange 7 is bolted to the upper end of the foundation 2, thereby being arranged between the foundation 2 and the column 3. Such laminated rubber 4 is arranged for each foundation 2 and each company 3 to constitute the entire seismic isolation system.
このような免震構造物における積層ゴム４を取り替える
には、以下の如くして行う。In order to replace the laminated rubber 4 in such a seismic isolation structure, it is performed as follows.
（＋、）積層ゴムの取外し作業
まず、基礎２および柱３間の四隅であって、積層ゴム４
の交換作業に支障のない位置に、ジヤツキ８を設置する
（この実施例では各四隅に２本づつ計８本）。ジヤツキ
８は、柱３の荷重の１．ｓ〜２、θ倍の能力のものを用
いる。このとき、積層ゴム４の下フランジ７のボルト９
を基礎２から全て外しておく。次いで、四隅に設置した
各ジヤツキ８・・・を均等に伸長し、柱３を１．Ｅ〜２
．θ同持ち上げる。なお、隣接する柱３も安全のため同
様に持ち上げる。これにより、積層ゴム４が若干浮かさ
れて基礎２との間にクリアランスが形成されることにな
る。(+,) Removal work of laminated rubber First, remove the laminated rubber 4 at the four corners between the foundation 2 and pillars 3.
The jacks 8 are installed at positions that do not interfere with the replacement work (in this embodiment, there are 8 jacks in total, 2 at each of the four corners). The jack 8 handles 1 of the load on the column 3. s~2, θ times the capacity is used. At this time, the bolts 9 of the lower flange 7 of the laminated rubber 4
Remove all from Basic 2. Next, each jack 8 installed at the four corners is extended evenly, and the pillar 3 is 1. E~2
．． θ Lift the same. Note that the adjacent pillar 3 is also lifted in the same manner for safety. As a result, the laminated rubber 4 is slightly lifted and a clearance is formed between it and the foundation 2.
次いで、外部から基礎２へ向けて積層ゴム４よりも狭い
間隔でもって２本のＨ形鋼１０．１ｏを平行にかつ基礎
２の高さに合わせて敷くとともに、Ｈ形鋼１０．１０の
」二からテフロン加工された案内板ｉｔ、ＩＩを基礎２
と下フランジ７とのクリアランスに差し込む。さらに、
上フランジ６のボルト１２を柱３の下端がら外して積層
ツム４を案内板１１．１１上に降ろす。この状態から、
ウィンチ１３のワイヤ１４を積層ゴム４に引っ掛け、ウ
ィンチ１３を駆動することによって、積層ゴム４を案内
板１１．１１に沿って外側に引き出す。Next, two H-beams 10.1o are laid parallel to each other and at a spacing narrower than the laminated rubber 4 toward the foundation 2 from the outside, matching the height of the foundation 2. Teflon-coated guide plate from 2, II as basis 2
and lower flange 7. moreover,
The bolts 12 of the upper flange 6 are removed from the lower end of the column 3, and the laminated tab 4 is lowered onto the guide plate 11.11. From this state,
By hooking the wire 14 of the winch 13 to the laminated rubber 4 and driving the winch 13, the laminated rubber 4 is pulled out along the guide plate 11.11.
（２）積層ゴムの取付作業
新しい積層ゴム４は、後述する運搬手段により案内板１
１．１１の他端に載せ、さらに案内板１１．１１上の積
層ゴム４にウィンチ１３のワイヤ１４を引っ掛けて、ウ
ィンチ１３を駆動し、これにより積層ゴム４を基礎２お
よび柱３間の所定位置に引き込む。この状態から図示し
ない爪付きジヤツキを用いて積層ゴム４を浮かせつつ案
内板１１１１１を撤去し、積層ゴム４の上フランジ６を
柱３下端にボルト接合する。さらに、各ジヤツキ８・・
・を均等に縮めながら下フランジ７を基礎２にボルト接
合し、柱３が元の位置に戻ったらボルト９を完全に締め
付けて、各ジヤツキ８・・・を撤去する。(2) Installation of laminated rubber The new laminated rubber 4 is moved to the guide plate 1 by means of transportation (described later).
1.11, and then hook the wire 14 of the winch 13 to the laminated rubber 4 on the guide plate 11.11 to drive the winch 13, thereby moving the laminated rubber 4 to a predetermined position between the foundation 2 and the pillar 3. pull into position. From this state, the guide plate 11111 is removed while the laminated rubber 4 is lifted using a jack with a claw (not shown), and the upper flange 6 of the laminated rubber 4 is bolted to the lower end of the column 3. Furthermore, each jack 8...
Bolt the lower flange 7 to the foundation 2 while shrinking them evenly, and when the column 3 returns to its original position, completely tighten the bolts 9 and remove each jack 8.
（３）積層ゴムの運搬
新しく取り替えるべき積層ゴム４は、図示しない外部ド
ライエリア等から搬入し、揚重機を使ってドライエリア
等の床上に降ろす。そして、自走式ローラーにて水平運
搬し、取り替え位置で案内板ＩＩ、１１上に載せ替え、
ウィンチ１３を使って基礎２上に送り込むわけである。(3) Transportation of laminated rubber The laminated rubber 4 to be replaced is brought in from an external dry area (not shown) and lowered onto the floor of the dry area etc. using a lifting machine. Then, it is transported horizontally using self-propelled rollers, and then placed on guide plates II and 11 at the replacement position.
It is sent onto the foundation 2 using the winch 13.
なお、各種設備配管は建築当初から積層ゴム４の水平運
搬、取付作業に支障のないように配置しておく。The various equipment piping should be arranged from the beginning of construction so as not to hinder the horizontal transportation and installation of the laminated rubber 4.
この実施例によれば、ジヤツキ８、案内板１１、ウィン
チ１３を用いることで、基礎２および柱３間から積層ゴ
ム４を外して楽に引き出すとともに、これら治具を用い
て新たな積層ゴム４を基礎２および柱３に引き込み容易
に取り付けることができる。これらの作業は、直接人手
に頼らないで行えるから、安全かつ確実に積層ゴム４の
取り替え作業を行うことができる。According to this embodiment, by using the jack 8, the guide plate 11, and the winch 13, the laminated rubber 4 can be easily removed from between the foundation 2 and the pillars 3, and a new laminated rubber 4 can be removed using these jigs. It can be easily attached to the foundation 2 and pillar 3 by drawing it in. Since these operations can be performed without relying directly on human hands, the laminated rubber 4 can be replaced safely and reliably.
「発明の効果」
以上詳細に説明したように、この発明は、免震構造物に
おける基礎および上部構造物間に配置した積層ゴムを取
り替える施工法であって、前記基礎部および上部構造物
間に複数のジヤツキを設置し、各ジヤツキを均等に伸長
して上部構造物を若干持ち上げ、これにより積層ゴムを
浮かしつつ基礎との間に案内板を挿入し、この状態で案
内板に沿って積層ゴムを引き出す一方、案内板に沿って
新たな積層ゴムを基礎および上下構造物間に引き込んで
所定位置に配置した後、案内板を撤去しかつジヤツキを
縮めて上部構造物を元の高さに戻すようにしたから、人
手に頼ることなく、積層ゴムの取り替え作業を容易にか
つ安全に行うことができる効果を奏する。"Effects of the Invention" As explained in detail above, the present invention provides a construction method for replacing the laminated rubber placed between the foundation and superstructure of a seismic isolation structure, Install multiple jacks and extend each jack evenly to slightly lift the superstructure. This will float the laminated rubber while inserting a guide plate between it and the foundation. In this state, move the laminated rubber along the guide plate. While pulling out the new laminated rubber along the guide plate between the foundation and upper and lower structures and placing it in place, remove the guide plate and reduce the jack to return the superstructure to its original height. As a result, it is possible to easily and safely replace the laminated rubber without relying on human labor.
第１図はこの発明が適用される免震構造物の要部断面図
、第２図はその平面図である。
第１図
１・・・・・・基礎梁、２・・・・・・基礎、３・・・
・・・柱（上部構造物）、４・・・・・・積層ゴム、５
・・・・・・減衰部、６・・・・・・上フランジ、７・
・・・・・下フランジ、８・・・・・・ジヤツキ、９・
・・・・・ボルト、１０・・・・・・ｌ］形鋼、１、１
・・・・・・案内板、１２・・・・・・ボルト、１３・
・・・・・ウィンチ、１４・・・・・・ワイヤ。FIG. 1 is a sectional view of a main part of a seismic isolation structure to which the present invention is applied, and FIG. 2 is a plan view thereof. Figure 1 1...Foundation beam, 2...Foundation, 3...
...Column (superstructure), 4...Laminated rubber, 5
... Damping part, 6 ... Upper flange, 7.
...Lower flange, 8... Jacket, 9.
...Bolt, 10...l] Shaped steel, 1, 1
...Guidance board, 12...Bolt, 13.
...Winch, 14...Wire.
Claims (1)
積層ゴムを取り替える施工法において、前記基礎部およ
び上部構造物間に複数のジャッキを設置し、各ジャッキ
を均等に伸長して上部構造物を若干持ち上げ、これによ
り積層ゴムを浮かしつつ基礎との間に案内板を挿入し、
この状態で案内板に沿って積層ゴムを引き出す一方、案
内板に沿って新たな積層ゴムを基礎および上下構造物間
に引き込んで所定位置に配置した後、案内板を撤去しか
つジャッキを縮めて上部構造物を元の高さに戻すように
したことを特徴とする免震用積層ゴムの取替施工法。In a construction method that replaces laminated rubber placed between the foundation and superstructure of a seismic isolation structure, multiple jacks are installed between the foundation and superstructure, and each jack is extended evenly to replace the superstructure. Lift it up slightly, thereby lifting the laminated rubber and inserting a guide plate between it and the foundation.
In this state, the laminated rubber is pulled out along the guide plate, while the new laminated rubber is pulled in along the guide plate between the foundation and the upper and lower structures and placed in the specified position.Then, the guide plate is removed and the jack is retracted. A method for replacing laminated rubber for seismic isolation, characterized by returning the superstructure to its original height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21239089A JPH0376973A (en) | 1989-08-18 | 1989-08-18 | Replacement of vibration-proof laminated rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21239089A JPH0376973A (en) | 1989-08-18 | 1989-08-18 | Replacement of vibration-proof laminated rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0376973A true JPH0376973A (en) | 1991-04-02 |
Family
ID=16621792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21239089A Pending JPH0376973A (en) | 1989-08-18 | 1989-08-18 | Replacement of vibration-proof laminated rubber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0376973A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017014853A (en) * | 2015-07-06 | 2017-01-19 | 前田建設工業株式会社 | Method for replacing seismic isolator |
| JP2018091065A (en) * | 2016-12-05 | 2018-06-14 | 株式会社竹中工務店 | Seismic isolation device exchange structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62121281A (en) * | 1985-11-21 | 1987-06-02 | 住友建設株式会社 | Method for installing and replacing isolator for earthquake damping structure |
-
1989
- 1989-08-18 JP JP21239089A patent/JPH0376973A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62121281A (en) * | 1985-11-21 | 1987-06-02 | 住友建設株式会社 | Method for installing and replacing isolator for earthquake damping structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017014853A (en) * | 2015-07-06 | 2017-01-19 | 前田建設工業株式会社 | Method for replacing seismic isolator |
| JP2018091065A (en) * | 2016-12-05 | 2018-06-14 | 株式会社竹中工務店 | Seismic isolation device exchange structure |
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