JPH034049A - Earthquake-proof supporting device - Google Patents
Earthquake-proof supporting deviceInfo
- Publication number
- JPH034049A JPH034049A JP13564089A JP13564089A JPH034049A JP H034049 A JPH034049 A JP H034049A JP 13564089 A JP13564089 A JP 13564089A JP 13564089 A JP13564089 A JP 13564089A JP H034049 A JPH034049 A JP H034049A
- Authority
- JP
- Japan
- Prior art keywords
- insulating material
- heat insulating
- laminated rubber
- rubber
- foundation
- 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
- 229920001971 elastomer Polymers 0.000 claims abstract description 80
- 239000005060 rubber Substances 0.000 claims abstract description 73
- 239000011810 insulating material Substances 0.000 claims abstract description 48
- 238000002955 isolation Methods 0.000 claims description 30
- 239000000806 elastomer Substances 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 10
- 239000011248 coating agent Substances 0.000 abstract description 9
- 238000000576 coating method Methods 0.000 abstract description 9
- 239000002184 metal Substances 0.000 abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 6
- 238000006073 displacement reaction Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、ビルなどの建物や地上施設などの構造物の支
持装置に関し、特に、基礎から構造物へ伝達される地震
エネルギーを減少させることにより、構造物を保護する
免震支持装置に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a support device for structures such as buildings and above-ground facilities, and in particular, to a device for reducing seismic energy transmitted from a foundation to a structure. The present invention relates to a seismic isolation support device for protecting structures.
ビルなどの構造物の耐震性を向上させる方法としては、
構造物自体の耐震強度を向上させる方法の他に、構造物
へ伝達される震動エネルギーを減少させる免震支持方法
が採用されている。As a way to improve the earthquake resistance of structures such as buildings,
In addition to methods of improving the seismic strength of the structure itself, seismic isolation support methods have been adopted to reduce seismic energy transmitted to the structure.
後者の免震支持方法においては、構造物を１つの振動系
として動的にとらえ、その振動周期を伸ばすことによっ
て地震等の外力に対する構造物の共振を防いで応答速度
を減少させ、もって、構造物へのエネルギー伝達を減少
させる手法が用いられる。In the latter seismic isolation support method, the structure is dynamically viewed as a vibrating system, and by extending its vibration period, the structure is prevented from resonating with external forces such as earthquakes, and its response speed is reduced. Techniques are used to reduce energy transfer to objects.
このような免震支持方法を実施する装！として、基礎と
構造物との間に積層ゴムを所定間隔ごとに配置し、それ
らの上下端部（通常フランジ部）を前記基礎および前記
構造物の相対向面に固定する構造が採用されている。A device that implements such a seismic isolation support method! As such, a structure is adopted in which laminated rubber is arranged at predetermined intervals between the foundation and the structure, and their upper and lower ends (usually flange portions) are fixed to the opposing surfaces of the foundation and the structure. .
前記積層ゴムは、ゴムなどのエラストマーの層と金属板
などの補強板とを交互に積層状態で一体化したものであ
り、例えば、特開昭６０−２６１８４５号あるいは特開
昭６１−１４３４０号などで開示されている。The laminated rubber is a product in which layers of elastomer such as rubber and reinforcing plates such as metal plates are alternately laminated and integrated. It is disclosed in.
この積層ゴムを使用した免震支持装置は、縦方向ばね定
数が高くて大荷重を支持するのに好適であるとともに、
横力向ばね定数が小さく、大きな水平方向弾性変位によ
って構造物への伝達エネルギーを効果的に減少させ得る
というすぐれた特性を備えている。This seismic isolation support device using laminated rubber has a high vertical spring constant and is suitable for supporting large loads.
It has excellent properties such as a small spring constant in the lateral force direction and a large horizontal elastic displacement that can effectively reduce the energy transmitted to the structure.
〔発明が解決しようとする技術的諜Ｂ］ところで、鉄や
コンクリートなどの建築構造部分に用いられる材質が一
般に不燃材であるのに対し、前記積層ゴムは可燃物であ
る。[Technical Intelligence B to be Solved by the Invention] By the way, while the materials used for building structural parts such as iron and concrete are generally noncombustible materials, the laminated rubber is combustible.
このため、上記積層ゴムを使用する免震支持装置にあっ
ては、ビル火災などの場合、周囲の熱によって前記エラ
ストマー層が消失したり、変質してしまうことがあった
。For this reason, in the case of a seismic isolation support device using the laminated rubber, the elastomer layer may disappear or deteriorate due to ambient heat in the event of a building fire or the like.
そこで、積層ゴムを断熱材等で被覆することにより、耐
火性を持たせることが考えられる。Therefore, it may be possible to provide fire resistance by covering the laminated rubber with a heat insulating material or the like.
しかし、上記積層ゴムを単に断熱材で被覆するだけでは
、地震などの震動が作用して前記積層ゴムが変形した場
合、該断熱材に剥離あるいは破損が生じ、断熱効果が無
くなってしまうという技術的課題があった。However, if the laminated rubber is simply covered with a heat insulating material, if the laminated rubber is deformed due to vibrations such as an earthquake, the heat insulating material will peel or break and the insulation effect will be lost. There was an issue.
本発明は、このような技術的課題を解決することができ
、地震等で積層ゴムが大きく変形する場合でも、断熱材
の損傷を防止して、耐火性を碑保し得る免震支持装置を
提供することを目的とする。The present invention can solve these technical problems, and provides a seismic isolation support device that can prevent damage to the insulation material and maintain fire resistance even when laminated rubber is greatly deformed due to earthquakes, etc. The purpose is to provide.
〔課題解決のための手段］
本発明によれば、基礎と構造物との間に、エラストマー
層と補強板とを交互に積層して一体化した積層ゴムを取
り付け、基礎から構造物へ伝わる震動エネルギーを減少
させる免震支持装置において、前記積層ゴムの周囲を、
前記基礎と前記構造物との間で弛みを持った状態で取り
付けられた可撓性の高温断熱材により被覆する構成する
ので、積層ゴムの水平変位に対する断熱材の追随性を値
保し、もって、震動に際してもビル火災等に対する耐火
性の低下を防止し得る免震支持装置が提供される。[Means for Solving the Problem] According to the present invention, a laminated rubber in which elastomer layers and reinforcing plates are alternately laminated and integrated is installed between the foundation and the structure, and vibrations transmitted from the foundation to the structure are fixed. In a seismic isolation support device that reduces energy, the periphery of the laminated rubber is
Since the foundation and the structure are covered with a flexible high-temperature heat insulating material attached with slack between them, the ability of the heat insulating material to follow the horizontal displacement of the laminated rubber is maintained. Provided is a seismic isolation support device that can prevent a decrease in fire resistance against building fires and the like even in the event of earthquakes.
上記構成においては、前記高温断熱材の前記積層ゴムに
対応する部分の高さを１． ２〜２．０倍にすれば、積
層ゴムに最大変位が生じた場合でも、該高温断熱材の損
傷を防止できる。In the above configuration, the height of the portion of the high temperature heat insulating material corresponding to the laminated rubber is set to 1. If it is increased by 2 to 2.0 times, even if the maximum displacement occurs in the laminated rubber, damage to the high-temperature heat insulating material can be prevented.
また、上記構成において、前記高温断熱材としてクロス
でブランケットを包み込んだ構造のものを使用すれば、
積層ゴムの高い断熱性を確保することができる。Furthermore, in the above configuration, if a material having a structure in which the blanket is wrapped in cloth is used as the high temperature insulating material,
High heat insulation properties of laminated rubber can be ensured.
以下、図面を参照して、本発明を具体的に説明する。 Hereinafter, the present invention will be specifically described with reference to the drawings.
第３図は本発明の一実施例による免震支持装置の縦断面
図であり、第４図は第３図中の線ＩＶ−ＩＶに沿った横
断面図である。3 is a longitudinal cross-sectional view of a seismic isolation support device according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3.
第３図および第４図において、基１ａ！１と構造物２と
の間に複数の８１層ゴム３が所定間隔ごとに配置され、
各積層ゴム３の上下端部はそれぞれ構造物２および基ｔ
ｉ２１の相対向面に固定されている。In FIGS. 3 and 4, the group 1a! 1 and the structure 2, a plurality of 81-layer rubbers 3 are arranged at predetermined intervals,
The upper and lower ends of each laminated rubber 3 are connected to the structure 2 and the base t, respectively.
It is fixed to the opposing surface of i21.
すなわち、ビル等の建造物である構造物２は、基礎１の
上に所定個数の積層ゴム３を介して弾性支持されている
。That is, the structure 2, which is a building such as a building, is elastically supported on the foundation 1 via a predetermined number of laminated rubber 3.
第５図は前記積層ゴム３の構造を示す縦断面図であり、
積層ゴム３はゴムなどのエラストマー層４と金属板ある
いは硬質プラスチック板などの補強板５とを交互に積層
し、加硫接着等で一体化した構造になっている。FIG. 5 is a longitudinal sectional view showing the structure of the laminated rubber 3,
The laminated rubber 3 has a structure in which elastomer layers 4 such as rubber and reinforcing plates 5 such as metal plates or hard plastic plates are alternately laminated and integrated by vulcanization adhesive or the like.
前記積層ゴム３の上下端部には鋼板などから成るフラン
ジ６．７が一体的に固着されており、各積層ゴム３はそ
の上下のフランジ６．７を構造物２および基礎１の相対
向面にボルト等の締結手段８で固定することにより、組
み付けられている。Flanges 6.7 made of steel plates or the like are integrally fixed to the upper and lower ends of the laminated rubber 3. It is assembled by fixing with fastening means 8 such as bolts.
こうして、地震などが発生した時、基礎ｌかる構造物２
へ伝わる震動エネルギーを減少させる免震支持装置が構
成されている。In this way, when an earthquake etc. occurs, the structure 2 with a foundation
A seismic isolation support device is configured to reduce seismic energy transmitted to the base.
地震が発生すると、各積層ゴム３に剪断撓みが生じ、構
造物２は基礎１に対し水平方向（第３図中矢印Ａで示す
方向）に変位する。When an earthquake occurs, shearing deflection occurs in each rubber layer 3, and the structure 2 is displaced in the horizontal direction (in the direction indicated by arrow A in FIG. 3) with respect to the foundation 1.
第３図および第５図中のＸば、上記積層ゴム３の実線で
示す中立位置から、左および右への最大変位を示す。3 and 5 indicates the maximum displacement of the laminated rubber 3 from the neutral position indicated by the solid line to the left and right.
そこで、本発明によれば、前記積層ゴム３の周囲は、前
記基［１と前記構造物２との間で弛みを持った状態で取
り付けられた可撓性の高温断熱材９により被覆されてい
る。Therefore, according to the present invention, the periphery of the laminated rubber 3 is covered with a flexible high-temperature heat insulating material 9 attached with a slack between the base [1 and the structure 2]. There is.
第１図は前記積層ゴム３の耐火被覆構造の第１の実施例
を示す一部破断側面図であり、第２図は第１図中の線■
−■に沿った横断面図である。FIG. 1 is a partially cutaway side view showing a first embodiment of the fireproof coating structure of the laminated rubber 3, and FIG.
- It is a cross-sectional view along ■■.
第１図および第２図において、基礎ｌ側の柱状突出部２
Ａの端面（正方形）とこれに固定される前記フランジ７
（円形）とは略同じ最大巾寸法を有し、構造物２例の柱
状突出部ＬＡの端面（正方形）とこれに固定される前記
フランジ６（円形）も略同じ最大巾寸法を有しており、
前記高温断熱材９は、一方の柱状突出部ＩＡに対しては
直接固定金具で固定され、他方の柱状突出部２Ａに対し
ては型材１１を介して固定されている。In Figures 1 and 2, the columnar protrusion 2 on the foundation l side
The end face (square) of A and the flange 7 fixed thereto
(circular) has approximately the same maximum width dimension, and the end face (square) of the columnar projection LA of the two structures and the flange 6 (circular) fixed thereto also have approximately the same maximum width dimension. Ori,
The high-temperature heat insulating material 9 is directly fixed to one of the columnar protrusions IA with a fixing metal fitting, and is fixed to the other columnar protrusion 2A via a mold member 11.
図示の例では、前記型材！ｌとしてはＬ型鋼が使用され
、該り型鋼１１は第２図に示すように四角端面の四つの
角部にそれぞれ直角形状を成して固定されている。In the illustrated example, the mold material! L-shaped steel 11 is used as L, and the L-shaped steel 11 is fixed to each of the four corners of the square end face in a right-angled shape, as shown in FIG.
前記固定金具ｌＯとしては、ボルトまたはタッピングね
じなどを使用することができる。A bolt, a tapping screw, or the like can be used as the fixing metal lO.
前記高温断熱材９の内面と前記積層ゴム３の外周面との
間には、図示のような、空間Ｓが形成されている。A space S is formed between the inner surface of the high-temperature heat insulating material 9 and the outer peripheral surface of the laminated rubber 3, as shown in the figure.
前記高温断熱材９は、前記基礎１と前記構造物２との間
で弛みを持った状態で取り付けられた可撓性の壁部材で
形成されており、前記積層ゴム３に対応する部分の高さ
（または上下方向長さ）は該積層ゴム３の高さＨの１．
２〜２．０倍の範囲に選定される。The high-temperature heat insulating material 9 is formed of a flexible wall member attached with slack between the foundation 1 and the structure 2, and has a height of a portion corresponding to the laminated rubber 3. The height (or length in the vertical direction) is 1.
It is selected in the range of 2 to 2.0 times.
また、前記高温断熱材９は、通常、図示のように、外側
に膨らんだ太鼓状を成して取り付けられる。Further, the high-temperature heat insulating material 9 is usually attached in the shape of a drum that swells outward, as shown in the figure.
前記高温断熱材９としては、例えば、アルミナファイバ
ー等の各種のセラミックファイバーをそのまま成形した
もの、あるいは適当なバインダーを添加して成形したも
のが使用され、さらに、前記耐熱性のファイバーは紡機
したクロスあるいは不織のブランケットまたはフェルト
のいずれの状態でも使用できる。As the high-temperature heat insulating material 9, for example, various ceramic fibers such as alumina fibers may be molded as they are, or may be molded with an appropriate binder added thereto. Alternatively, it can be used as a non-woven blanket or felt.
前記高温断熱材９としては板伏またば帯杖のものが使用
されており、その両端部は重なり代Ｂを設け、その部分
を不燃材の糸で縫い合わせることにより、積層ゴム３は
外部から遮断されている。As the high-temperature insulating material 9, a board or band cane is used, and by providing an overlapping margin B at both ends and sewing that portion with a thread made of non-combustible material, the laminated rubber 3 is isolated from the outside. has been done.
第６図は本発明による免震支持装置で使用される積層ゴ
ム３の耐火被覆構造の第２実施例を示す一部破断側面図
であり、第７図は第６図中の線■−■に沿った横断、面
図である。FIG. 6 is a partially cutaway side view showing a second embodiment of the fireproof coating structure of the laminated rubber 3 used in the seismic isolation support device according to the present invention, and FIG. 7 is a partially cutaway side view showing the line ■-■ in FIG. This is a cross-sectional and sectional view along.
本実施例は、基Ｗ１１および構造物２の相対向する積層
ゴム３取り付は端面ＩＢおよび２Ｂの面積が積層ゴム３
の両端フランジ７．６の面積より広い場合に、基ｖＩｌ
および構造物２の対向面ＩＢおよび２Ｂに型材から成る
ブラケット１２および１３を固定しておき、これらのブ
ラケット１２および１３に可撓性の高温断熱材９の上下
端部を固定金具１０で固定する構造になっている。In this embodiment, when the base W11 and the structure 2 are attached to the laminated rubber 3 facing each other, the area of the end faces IB and 2B is
When the area of the base vIl is larger than the area of both end flanges 7.6,
Brackets 12 and 13 made of shaped materials are fixed to the opposing surfaces IB and 2B of the structure 2, and the upper and lower ends of the flexible high-temperature insulating material 9 are fixed to these brackets 12 and 13 with fixing fittings 10. It has a structure.
図示の例では、前記ブラケット１２．１３はいずれも積
層ゴム３と同心の円周上に所定ピッチで複数個配置され
ており、前記高温断熱材９はこれらのブラケット１２．
１３に沿って積層ゴム３の周面と所定間隔をおいて同心
円状に配置されている。In the illustrated example, a plurality of the brackets 12.13 are arranged at a predetermined pitch on a circumference concentric with the laminated rubber 3, and the high temperature insulating material 9 is connected to these brackets 12.13.
13, they are arranged concentrically with the circumferential surface of the laminated rubber 3 at a predetermined interval.
前記高温断熱材９の両端部は、所定５１Ｂの重なり代を
設け、その部分を不燃材の糸で縫い合わせることにより
、密閉状態で固定されている。Both ends of the high-temperature heat insulating material 9 are fixed in a sealed state by providing a predetermined overlap margin of 51B and sewing that portion with a thread made of a noncombustible material.
また、第１図および第２図の場合と同じように、前記可
撓性の高温断熱材９は基１ｉ！Ｉと構造物２との間で弛
みをもった状態、すなわち、Ｈ１層ゴム３に対応する部
分の高さＨの１．２〜２．０倍の高さ（上下方向長さ）
を持って取り付けられており、その内部には空間Ｓが設
けられている。Also, as in FIGS. 1 and 2, the flexible high-temperature insulating material 9 has a base 1i! A state in which there is slack between I and the structure 2, that is, a height (vertical length) that is 1.2 to 2.0 times the height H of the portion corresponding to the H1 layer rubber 3.
The space S is provided inside the space S.
第６図および第７図の積層ゴム３の耐火被覆構造は、そ
の他の部分では、前述の第１図および第２図の実施例の
場合と実質上回！、；構造を有しておリ、対応する部分
をそれぞれ同じ番号で表示し、それらの詳細説明は省略
する。The fireproof coating structure of the laminated rubber 3 shown in FIGS. 6 and 7 is substantially superior to that of the above-described embodiment shown in FIGS. 1 and 2 in other parts! , ;corresponding parts are indicated by the same numbers, and detailed explanation thereof will be omitted.
第８図は本発明による免震支持装置において使用される
積層ゴム３の耐火被覆構造の第３実施例を示す一部破断
側面図であり、第９図は第８図中の線ＩＸ−ＩＸに沿っ
た横断面図である。FIG. 8 is a partially cutaway side view showing a third embodiment of the fireproof covering structure of the laminated rubber 3 used in the seismic isolation support device according to the present invention, and FIG. 9 is a partially cutaway side view showing the line IX-IX in FIG. FIG.
本実施例は、前述の第６図および第７図の実施例におい
て、高温断熱材９を上下のブラケット１３．１２に固定
する固定金具８を締付はベル）１５に変更したものであ
る。In this embodiment, the fixing fittings 8 for fixing the high-temperature heat insulating material 9 to the upper and lower brackets 13 and 12 in the embodiments shown in FIGS. 6 and 7 are changed to tightening bells 15.
前記締付はベルト１５は、所望の弾性および引張り強度
を有するワイヤ状または帯状の金属またはプラスチック
で作ることができる。The tightening belt 15 can be made of wire or strip metal or plastic with the desired elasticity and tensile strength.
本実施例のその他の部分は、前述の第６図および第７図
の場合と実質上同じ構造をしており、対応する部分をそ
れぞれ同じ番号で表示し、それらの詳細な説明は省略す
る。The other parts of this embodiment have substantially the same structure as those shown in FIGS. 6 and 7 described above, and corresponding parts are indicated by the same numbers, and detailed explanation thereof will be omitted.
以上説明した各実施例によれば、地震が発生して各積層
ゴム３が水平方向に変位しても、それらを被覆する高温
断熱材９に予め充分な弛みが与えられているので、該高
温断熱材９は剥離したり損傷することがなく、したがっ
て、火災が発生しても各積層ゴム３を断熱保護すること
ができ、免震支持機能を常に維持することが可能になっ
た。According to each of the embodiments described above, even if an earthquake occurs and each laminated rubber 3 is displaced in the horizontal direction, the high-temperature insulating material 9 that covers them is given sufficient slack in advance, so that the high-temperature The heat insulating material 9 does not peel off or get damaged, so even if a fire occurs, each laminated rubber layer 3 can be thermally protected and the seismic isolation support function can be maintained at all times.
第１０図は前記高温断熱材９の両端部の別の結合固定構
造を示す部分正面図であり、同図において、高温断熱材
９の両端部に複数個のフックＩ６が設けられ、これらの
フック１６に耐火材の紐１７を交互に挿通することによ
り、該高温断熱材９の両端部が締付は固定されている。FIG. 10 is a partial front view showing another coupling and fixing structure for both ends of the high-temperature insulating material 9, and in the figure, a plurality of hooks I6 are provided at both ends of the high-temperature insulating material 9, and these hooks By alternately inserting refractory strings 17 through 16, both ends of the high-temperature insulating material 9 are fixedly tightened.
第１１図は、前記高温断熱材９の構造例を示す部分断面
図であり、同図において、積層ゴム３の耐火被覆構造を
形成する高温断熱材９は、アルミナファイバー等のセラ
ミックファイバーのクロス（紡織布）で同じセラミンク
ファイバーのブランケットを包み込んだ構造をしている
。FIG. 11 is a partial cross-sectional view showing an example of the structure of the high-temperature insulating material 9. In the same figure, the high-temperature insulating material 9 forming the fireproof coating structure of the laminated rubber 3 is made of ceramic fiber cloth (such as alumina fiber). It has a structure in which the same ceramic fiber blanket is wrapped in a textile (woven fabric).
このような構造を採用することにより、断熱性にすぐれ
、積層ゴム３を火災等から確実に保護し得る耐火被覆構
造が得られた。By employing such a structure, a fireproof coating structure with excellent heat insulation properties and capable of reliably protecting the laminated rubber 3 from fire etc. was obtained.
第１２図は免震支持装置の水平方向の剪断変形を実測し
た結果を示す。FIG. 12 shows the results of actually measuring the horizontal shear deformation of the seismic isolation support device.
第１２図において、地震が発生した時、積層ゴム３は模
式的断面図に示すごとく水平方向に剪断変形する。In FIG. 12, when an earthquake occurs, the laminated rubber 3 undergoes shear deformation in the horizontal direction as shown in the schematic cross-sectional view.
最大変形量（設計許容変位）Ｘを３０ｃｍとした場合、
積層ゴム３の高さＨが与えられると、該積層ゴム３の伸
長時の長さしは幾何学的に決まる。When the maximum deformation amount (design allowable displacement) X is 30 cm,
When the height H of the rubber layer 3 is given, the length of the rubber layer 3 when it is stretched is determined geometrically.
一方、積層ゴム３の高さＨは第１２図中の表に示すよう
に荷重によって変化する。On the other hand, the height H of the laminated rubber 3 changes depending on the load as shown in the table in FIG.
そこで、活荷重に対する高さ＋４から、延び長さしおよ
びその比率Ｌ ／ Ｈを求めると、第１２図中の表のよ
うになる。Therefore, when the extension length and its ratio L/H are determined from the height +4 relative to the live load, the table in FIG. 12 is obtained.
この表から、標準サイズのＬ／Ｈの比を見ると、１．３
〜１，６倍になっている。From this table, looking at the L/H ratio of standard size, it is 1.3
It has increased by ~1.6 times.
したがって、地震時の積層ゴム３の最大変形に高温断熱
材９が確実に追従するためには、該高温断熱材９の長さ
は若干の余裕を見て積層ゴム３の高さＨの１．２〜２．
０倍にする必要がある。Therefore, in order for the high-temperature insulating material 9 to reliably follow the maximum deformation of the laminated rubber 3 during an earthquake, the length of the high-temperature insulating material 9 must be set to 1.0% of the height H of the laminated rubber 3 with a slight margin. 2-2.
It needs to be multiplied by 0.
こうして、必要な弛みを持たせた高温断熱材９で積層ゴ
ム３を被覆することにより、地震時の変形に対し高温断
熱材９が１貝傷せず、火災が発生した場合でも、積層ゴ
ム３を高熱から効果的に保護でき、免震効果を維持し得
る免震支持装置が得られた。In this way, by covering the laminated rubber 3 with the high-temperature insulating material 9 with the necessary slack, the high-temperature insulating material 9 will not be damaged by deformation during an earthquake, and even in the event of a fire, the laminated rubber 3 A seismic isolation support device that can effectively protect the structure from high heat and maintain the seismic isolation effect was obtained.
以上の説明から明らかなように、本発明によれば、基礎
と構造物との間に、エラストマー層と補強板とを交互に
積層して一体化した積層ゴムを取り付け、基礎から構造
物へ伝わる震動エネルギーを減少させる免震支持装置に
おいて、前記積層ゴムの周囲を、前記基礎と前記構造物
との間で弛みを持った状態で取り付けられた可撓性の高
温断熱材により被覆する構成にしたので、地震等が発生
して積層ゴムが変形しても、これを被覆する高温断熱材
に剥離や損傷を生じることがなく、火災が発生した場合
でも積層ゴムを保護し、免震効果を維持し得る免震支持
装置が提供される。As is clear from the above description, according to the present invention, a laminated rubber in which elastomer layers and reinforcing plates are alternately laminated and integrated is attached between the foundation and the structure, and the In the seismic isolation support device for reducing seismic energy, the periphery of the laminated rubber is covered with a flexible high temperature heat insulating material attached with slack between the foundation and the structure. Therefore, even if the laminated rubber is deformed due to an earthquake, etc., the high-temperature insulation covering it will not peel off or be damaged, and even in the event of a fire, the laminated rubber will be protected and the seismic isolation effect will be maintained. A seismic isolation support device is provided.
上記構成においては、前記高温断熱材の前記積層ゴムに
対応する部分の高さを１．２〜２．０倍にすれば、前記
積層ゴムの最大変形時でも前記高温断熱材の…傷を確実
に防止することができる。In the above configuration, by increasing the height of the portion of the high-temperature insulating material corresponding to the laminated rubber by 1.2 to 2.0 times, even when the laminated rubber is deformed to its maximum, damage to the high-temperature insulating material can be ensured. can be prevented.
さらに、上記構成においては、前記高温断熱材をクロス
でブランケットを包み込んだ構造にすれば、上記効果に
加え、積層ゴムの断熱保護機能をさらに向上させ得ると
いう効果が得られる。Furthermore, in the above structure, if the high temperature heat insulating material is structured so that the blanket is wrapped in cloth, in addition to the above effect, the heat insulation protection function of the laminated rubber can be further improved.
第１図は本発明による免震支持装置の積層ゴムの耐火被
覆構造の第１実施例の一部破断側面図、第２図は第１図
中の線■−Ｈに沿った横断面図、第３図は本発明の一実
施例による免震支持装置の縦断面図、第４図は第３図中
の線ｒＶ−ｒＶに沿った横断面図、第５図は第３図中の
積層ゴムの縦断面図、第６図は本発明による免震支持装
置の積層ゴムの耐火被覆構造の第２実施例の一部破断側
面図、第７図は第６図中の線■−■に沿った横断面図、
第８図は本発明による免震支持装置の積層ゴムの耐火被
覆構造のもの第３実施例の一部破断側面図、第９図は第
８図中の線ＩＸ−ＩＸに沿った横断面図、第１０図は高
温断熱材の両端固定部の部分正面図、第１１図は本発明
による免震支持装置の高温断熱材の構造を例示する部分
断面図、第１２図は積層ゴムの最大水平変位の測定結果
を示す図表である。
ｌ・・・・−基礎、２・・・・−構造物、３−−−一−
・・積層ゴム、４・−・−エラストマー層、５−・・・
−補強板、９−・・・高温断熱材、Ｘ・・−・積層ゴム
の最大水平変位、Ｈ・・・・−積層ゴムの高さ。
（７８８４）弁理士 大 音 康 穀
筒１図
第３図
第４図
第
６
図
第
図
第
０
図
第
１
図
第
図
第
図
Ａ
第
２
図FIG. 1 is a partially cutaway side view of a first embodiment of a fireproof coating structure of laminated rubber for a seismic isolation support device according to the present invention, and FIG. 2 is a cross-sectional view taken along line ■-H in FIG. 1. FIG. 3 is a longitudinal cross-sectional view of a seismic isolation support device according to an embodiment of the present invention, FIG. 4 is a cross-sectional view taken along the line rV-rV in FIG. 3, and FIG. 5 is a laminated layer in FIG. 3. A vertical cross-sectional view of the rubber, FIG. 6 is a partially cutaway side view of the second embodiment of the fireproof coating structure of the laminated rubber of the seismic isolation support device according to the present invention, and FIG. cross section along,
FIG. 8 is a partially cutaway side view of a third embodiment of a seismic isolation support device of the present invention having a fireproof coating structure made of laminated rubber, and FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. 8. , Fig. 10 is a partial front view of the fixed portions at both ends of the high-temperature insulating material, Fig. 11 is a partial sectional view illustrating the structure of the high-temperature insulating material of the seismic isolation support device according to the present invention, and Fig. 12 is the maximum horizontal view of the laminated rubber. It is a chart showing displacement measurement results. l...-Foundation, 2...-Structure, 3----1-
...Laminated rubber, 4-- elastomer layer, 5-...
- Reinforcement plate, 9 - High temperature insulation material, X... Maximum horizontal displacement of laminated rubber, H... - Height of laminated rubber. (7884) Patent Attorney Yasushi Oto Grain cylinder 1 Fig. 3 Fig. 4 Fig. 6 Fig. Fig. 0 Fig. 1 Fig. Fig. Fig. A Fig. 2
Claims (4)
とを交互に積層して一体化した積層ゴムを取り付け、基
礎から構造物へ伝わる震動エネルギーを減少させる免震
支持装置において、前記積層ゴムの周囲を、前記基礎と
前記構造物との間で弛みを持った状態で取り付けられた
可撓性の高温断熱材により被覆することを特徴とする免
震支持装置。(1) In the seismic isolation support device, which reduces seismic energy transmitted from the foundation to the structure, by attaching a laminated rubber made by alternately laminating elastomer layers and reinforcing plates to the structure, between the foundation and the structure. A seismic isolation support device characterized in that the periphery of the laminated rubber is covered with a flexible high temperature heat insulating material that is loosely attached between the foundation and the structure.
高さを１．２〜２．０倍にしたことを特徴とする請求項
１に記載の免震支持装置。(2) The seismic isolation support device according to claim 1, wherein the height of the portion of the high temperature heat insulating material corresponding to the laminated rubber is increased by 1.2 to 2.0 times.
んだ構造であることを特徴とする請求項１に記載の免震
支持装置。(3) The seismic isolation support device according to claim 1, wherein the high-temperature insulating material has a structure in which a blanket is wrapped in cloth.
造物に取り付けられることを特徴とする請求項１に記載
の免震支持装置。(4) The seismic isolation support device according to claim 1, wherein the high-temperature heat insulating material is attached to the foundation and the structure via shapes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1135640A JP2887895B2 (en) | 1989-05-29 | 1989-05-29 | Seismic isolation support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1135640A JP2887895B2 (en) | 1989-05-29 | 1989-05-29 | Seismic isolation support device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH034049A true JPH034049A (en) | 1991-01-10 |
| JP2887895B2 JP2887895B2 (en) | 1999-05-10 |
Family
ID=15156536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1135640A Expired - Fee Related JP2887895B2 (en) | 1989-05-29 | 1989-05-29 | Seismic isolation support device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2887895B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5546711A (en) * | 1995-05-26 | 1996-08-20 | Heller; Paul S. | Base isolator fire barrier system |
| US5669189A (en) * | 1992-12-24 | 1997-09-23 | Logiadis; Ioannis | Antiseismic connector of limited vibration for seismic isolation of an structure |
| CN102249110A (en) * | 2011-06-08 | 2011-11-23 | 南京安顺自动化装备有限公司 | Dragging and coiling device for strip splitting machine |
| CN111140726A (en) * | 2020-02-17 | 2020-05-12 | 滨州学院 | Three-dimensional shock insulation pedestal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60185799U (en) * | 1984-05-21 | 1985-12-09 | 株式会社 原田産業 | Removable thermal cover |
| JPS63116603U (en) * | 1987-01-26 | 1988-07-27 | ||
| JPS6448950A (en) * | 1987-08-19 | 1989-02-23 | Bridgestone Corp | Earthquake support apparatus |
-
1989
- 1989-05-29 JP JP1135640A patent/JP2887895B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60185799U (en) * | 1984-05-21 | 1985-12-09 | 株式会社 原田産業 | Removable thermal cover |
| JPS63116603U (en) * | 1987-01-26 | 1988-07-27 | ||
| JPS6448950A (en) * | 1987-08-19 | 1989-02-23 | Bridgestone Corp | Earthquake support apparatus |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5669189A (en) * | 1992-12-24 | 1997-09-23 | Logiadis; Ioannis | Antiseismic connector of limited vibration for seismic isolation of an structure |
| US5546711A (en) * | 1995-05-26 | 1996-08-20 | Heller; Paul S. | Base isolator fire barrier system |
| WO1996037675A1 (en) * | 1995-05-26 | 1996-11-28 | Heller Paul S | Base isolator fire barrier system |
| CN102249110A (en) * | 2011-06-08 | 2011-11-23 | 南京安顺自动化装备有限公司 | Dragging and coiling device for strip splitting machine |
| CN111140726A (en) * | 2020-02-17 | 2020-05-12 | 滨州学院 | Three-dimensional shock insulation pedestal |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2887895B2 (en) | 1999-05-10 |
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