JPH0650025A - Laminated rubber support body - Google Patents
Laminated rubber support bodyInfo
- Publication number
- JPH0650025A JPH0650025A JP22487292A JP22487292A JPH0650025A JP H0650025 A JPH0650025 A JP H0650025A JP 22487292 A JP22487292 A JP 22487292A JP 22487292 A JP22487292 A JP 22487292A JP H0650025 A JPH0650025 A JP H0650025A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- plate
- laminated
- elastic plate
- rigid
- 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
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
- Springs (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は構造物の免震等に利用さ
れる積層ゴム支承体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated rubber bearing used for seismic isolation of structures.
【０００２】[0002]
【従来の技術】建築物等の構造物を地震から保護する基
礎材として、図５に示すような積層ゴム支承体１が実用
化されている。これは天然ゴム、合成ゴム等のゴム状弾
性板２と鋼板等の剛性板３を交互に積層し、上下に取付
板４を配したもので、図６に示すように建築物等の構造
物５を、その基礎６から浮かすように支持する緩衝材と
して使用される。2. Description of the Related Art A laminated rubber bearing 1 as shown in FIG. 5 has been put into practical use as a basic material for protecting structures such as buildings from earthquakes. This is one in which a rubber-like elastic plate 2 such as natural rubber or synthetic rubber and a rigid plate 3 such as a steel plate are alternately laminated, and mounting plates 4 are arranged above and below, and as shown in FIG. 5 is used as a cushioning material that supports the base 5 so as to float above the base 6.
【０００３】上記構造で免震が可能なのは、積層ゴム支
承体１の鉛直バネ剛性／水平バネ剛性比が非常に大きい
ことによる。すなわち、大きな鉛直バネ剛性によって、
大重量の構造物５を上下に動かさないで安定に支持し、
かつ、小さい水平バネ剛性によって、構造物５を水平方
向に振動可能とする。水平バネ剛性は小さいので、水平
方向の固有振動周期は、破壊の原因となる地震動の横波
の最大振幅成分のものより長くなり、地震発生時に地盤
に対して低速の並進運動を行わせる。これによって地震
の入力加速度を低減し構造物５を保護する。The seismic isolation is possible with the above structure because the laminated rubber support 1 has a very high vertical spring rigidity / horizontal spring rigidity ratio. That is, due to the large vertical spring rigidity,
Stable support without moving the heavy structure 5 up and down,
Moreover, the structure 5 can be horizontally vibrated by the small horizontal spring rigidity. Since the horizontal spring stiffness is small, the horizontal natural vibration period is longer than that of the maximum amplitude component of the shear wave of the seismic motion that causes rupture, and causes a slow translational motion of the ground when an earthquake occurs. This reduces the input acceleration of the earthquake and protects the structure 5.
【０００４】従来は、この積層ゴム支承体１のゴム状弾
性板２と剛性板３は接着されていた。しかし、この構造
では、大地震に対して積層ゴム支承体１が水平方向に大
きく変形したとき、ゴム状弾性板２の周縁部が高張力状
態となり、降伏領域に達して硬化し、水平バネ剛性を大
きくして免震性能を低下させるとともに、この高張力部
分が破断の引き金となり破断が一挙に進む。Conventionally, the rubber-like elastic plate 2 and the rigid plate 3 of the laminated rubber support 1 have been bonded. However, in this structure, when the laminated rubber support 1 is largely deformed in the horizontal direction due to a large earthquake, the peripheral edge of the rubber-like elastic plate 2 is in a high tension state, reaches the yield region and hardens, and the horizontal spring rigidity is increased. Is increased to lower the seismic isolation performance, and this high-tensile part triggers the rupture, and the rupture progresses at once.
【０００５】なお、周縁部が高張力状態となるのは、次
の理由による。大重量の構造物５を載荷すると、剛性板
３に挟まれたゴム状弾性板２が側方に膨出しようとし、
これを、その周縁部が引伸ばされた状態で抑えることに
なる。この状態で、大きな水平方向変位があると、剛性
板３に引かれる周縁部の引伸ばし量がさらに増加し、結
局、周縁部に最大の引っ張り負荷が加わることになるの
である。The reason why the peripheral portion is in a high tension state is as follows. When a heavy structure 5 is loaded, the rubber-like elastic plate 2 sandwiched between the rigid plates 3 tries to bulge laterally,
This will be suppressed in a state where the peripheral portion is stretched. In this state, if there is a large horizontal displacement, the amount of stretching of the peripheral portion drawn by the rigid plate 3 further increases, and eventually the maximum tensile load is applied to the peripheral portion.
【０００６】そこで、本出願人は、この問題を解決する
ため、ゴム状弾性板２と剛性板３を非接着で積層し、載
荷する構造物５の重量によって発生する大きな摩擦力で
固着状態にする固着型の積層ゴム支承体を提案している
（特開平２−１５３１３７号公報）。これは、ゴム状弾
性板２の周縁部が非接着で剛性板３に拘束されていない
ので、大変形時に、これを挟む上下の剛性板３のスライ
ドに対して、この周縁部が転がり運動を起こし、外部空
間に露出する自由面を実質的に拡大し、応力集中を緩和
して硬化をなくす。これにより、水平バネ剛性を大変形
時にも略一定に保ち、かつ大変形時のゴム状弾性板２の
クラックの発生をなくして、積層ゴム支承体１の免震性
能及び耐久性の向上を図ることができる。また、非接着
の構造のため、その組み立ては単に位置決めして重ねる
だけでよく、製造コストを下げることもできる。In order to solve this problem, therefore, the applicant of the present invention laminated the rubber-like elastic plate 2 and the rigid plate 3 in a non-adhesive manner and fixed them by a large frictional force generated by the weight of the structure 5 to be loaded. A fixed type laminated rubber bearing has been proposed (Japanese Patent Laid-Open No. 2-153137). This is because the peripheral edge portion of the rubber-like elastic plate 2 is not adhered and is not constrained to the rigid plate 3, so that the peripheral edge portion rolls with respect to the slides of the upper and lower rigid plate 3 which sandwich the elastic elastic plate 2 during large deformation. Raise and substantially expand the free surface exposed to the external space, relieving stress concentration and eliminating hardening. As a result, the horizontal spring rigidity is kept substantially constant even during large deformation, and the occurrence of cracks in the rubber-like elastic plate 2 during large deformation is eliminated, and seismic isolation performance and durability of the laminated rubber bearing 1 are improved. be able to. Also, due to the non-bonded structure, the assembly can be simply positioned and stacked, and the manufacturing cost can be reduced.
【０００７】[0007]
【発明が解決しようとする課題】上記改良された積層ゴ
ム支承体１は、製作しやすい構造で、特性向上並びに長
寿命化を図ることができるが、接着していないため、大
変形時に剛性板相互の変形が部分的累積により不均一と
なり、性能低下が考えられる。The improved laminated rubber bearing 1 has a structure that is easy to manufacture and can improve the characteristics and prolong the service life, but since it is not bonded, it is a rigid plate when it is largely deformed. Mutual deformation becomes non-uniform due to partial accumulation, and performance degradation is considered.
【０００８】この改良型の積層ゴム支承体１は、中小規
模の地震に対しては、載荷する構造物５の重量による摩
擦力で、固着状態を保つことができ、実用上全く問題が
ない。しかし、大規模地震に対しては、水平方向の変形
量がかなり大きくなるため、ゴム状弾性板２がハードニ
ング領域（硬化領域）に近づくことになり、ゴムの粘性
抵抗及び摩擦抵抗が低下して、ゴム状弾性板２と剛性板
３の間に微小なすべりが生じる。このすべりは、周縁部
硬化防止の観点から甚だ好ましい挙動であるが、大変形
の繰り返しに対して残留変形が累積し、免震性能が設計
期待値から外れていく問題が生じる。The improved laminated rubber bearing 1 can maintain a fixed state by a frictional force due to the weight of the structure 5 to be loaded against a small-to-medium-scale earthquake, and there is no problem in practical use. However, in the case of a large-scale earthquake, the amount of horizontal deformation becomes considerably large, so that the rubber-like elastic plate 2 comes close to the hardening region (hardening region), and the viscous resistance and frictional resistance of the rubber decrease. As a result, a slight slip occurs between the rubber-like elastic plate 2 and the rigid plate 3. This slippage is a very preferable behavior from the viewpoint of preventing the hardening of the peripheral portion, but residual deformation accumulates with repeated large deformations, causing a problem that the seismic isolation performance deviates from the design expected value.
【０００９】そこで、本発明は、非接着で積層する改良
型の積層ゴム支承体の上記特長を生かしたまま、大変形
の繰返しに対する弾性挙動域を拡大し、残留変形の発生
を最小限にとどめ得る構造を提供することを目的とす
る。Therefore, the present invention expands the elastic behavior range for repeated large deformations while keeping the above-mentioned features of the improved laminated rubber bearing which is laminated without adhesion, and minimizes the occurrence of residual deformation. It is intended to provide a structure to be obtained.
【００１０】[0010]
【課題を解決するための手段】本発明は、ゴム状弾性板
と剛性板を、非接着状態で交互に積層して構成され、構
造物を水平方向に揺動可能に載置支持する積層ゴム支承
体の構造として、次に列挙するものを提供する。SUMMARY OF THE INVENTION The present invention is a laminated rubber which is constructed by alternately laminating rubber-like elastic plates and rigid plates in a non-bonded state, and which supports and supports a structure so as to be horizontally swingable. The following structures are provided as the structure of the support.
【００１１】 上記剛性板のゴム状弾性板と接触する
面に、薄いゴム状弾性板を接着し、剛性板とゴム状弾性
板を、ゴム同士の摩擦で接触させる。A thin rubber-like elastic plate is adhered to a surface of the rigid plate that comes into contact with the rubber-like elastic plate, and the rigid plate and the rubber-like elastic plate are brought into contact with each other by friction between the rubbers.
【００１２】 ゴム状弾性板と剛性板の積層体に上下
方向の貫通孔を設け、この内部に復元作用を発揮する柱
状の弾性体を埋め込む。A vertical through hole is provided in a laminated body of a rubber-like elastic plate and a rigid plate, and a columnar elastic body exhibiting a restoring action is embedded in the through hole.
【００１３】 各剛性板のゴム状弾性板から側方に張
り出した部分に、積層方向に見て位置が一致する部分に
貫通孔を設け、この貫通孔に位置規制棒をスライド可能
に挿通し、水平方向変形時のスライド量を各剛性板で等
分するように位置規制する。A through hole is formed in a portion of each rigid plate that projects laterally from the rubber-like elastic plate, at a position where the positions match in the stacking direction, and a position regulating rod is slidably inserted into the through hole. Positions are regulated so that the amount of slide during horizontal deformation is equally divided by each rigid plate.
【００１４】 １枚のゴム状弾性板と１枚の剛性板の
片面同士を張合わせたものを一単位とし、これの複数個
を同一の向きで非接着状態で積層する。One rubber-like elastic plate and one rigid plate, which are bonded to each other on one side, are regarded as one unit, and a plurality of these are laminated in the same direction in a non-adhesive state.
【００１５】 上記〜に記載した構成を２種以上
組合わせて、ゴム状弾性板と剛性板の積層体を構成す
る。A combination of two or more of the configurations described in 1 to 3 above is used to form a laminated body of a rubber-like elastic plate and a rigid plate.
【００１６】[0016]
【作用】上記構成は、いずれも、大免震に対する免震動
作で、積層ゴム支承体が水平方向に大変形しても、各板
間のすべりを均等化し、形状を保持して免震特性の長期
安定化を保証する。[Effects] All of the above configurations are seismic isolation operations against large seismic isolation, and even if the laminated rubber bearings undergo major horizontal deformation, the slip between the plates is made uniform and seismic isolation characteristics are maintained. Guarantee long-term stabilization of.
【００１７】の構成は、ゴム状弾性板２と剛性板３と
の接触がゴム同士の粘着力と摩擦力によって行われ、ゴ
ムと鋼板の摩擦力に比べて、かなり大きな固定力を作用
させる。したがって、大変形によってゴム状弾性板がハ
ードニング領域（硬化領域）に近付いても、充分な固定
力を働かせ、積層ゴム支承体の形状を保持する。In the construction of (1), the rubber-like elastic plate 2 and the rigid plate 3 are brought into contact with each other by the adhesive force and the frictional force between the rubbers, and a considerably large fixing force is applied as compared with the frictional force between the rubber and the steel plate. Therefore, even if the rubber-like elastic plate comes close to the hardening region (curing region) due to the large deformation, a sufficient fixing force is exerted to maintain the shape of the laminated rubber bearing.
【００１８】の構成は、剛性板とゴム状弾性板の積層
体に貫設した弾性体が、復元力を与えるので、水平方向
に大変形しても全体形状の変化を防止できる。In the structure of (1), since the elastic body penetrating the laminated body of the rigid plate and the rubber-like elastic plate gives a restoring force, the change of the whole shape can be prevented even if it is largely deformed in the horizontal direction.
【００１９】の構成は、複数の剛性板に上下方向に貫
設した姿勢保持棒が、水平方向変形に応じて傾斜しなが
ら、各剛性板のスライド量を等分するように位置規制す
る。これによって、剛性板間の部分的残留変形の累積が
禁止され、全体形状の変化を防止できる。In the construction of (1), the posture holding rods vertically penetrating the plurality of rigid plates are positionally regulated so as to equally divide the sliding amount of each rigid plate while inclining in accordance with the horizontal deformation. As a result, accumulation of partial residual deformation between the rigid plates is prohibited, and change in the overall shape can be prevented.
【００２０】の構成は、ゴム状弾性板の一方の面を剛
性板に接着し、他方の面を剛性板と非接着としたことに
より、ゴム状弾性板と剛性板の相互間のすべりを半減さ
せて、形状変形を防止する。この構造において、ゴム状
弾性板の周縁部は、一方の面が剛性板と接着されるが、
他方の面が剛性板に接着されていないので、大変形時に
硬化しないという非接着方式の特長は生かされている。In the construction of (1), one surface of the rubber-like elastic plate is adhered to the rigid plate and the other surface is not adhered to the rigid plate, so that the slip between the rubber-like elastic plate and the rigid plate is halved. The shape deformation is prevented. In this structure, one side of the peripheral edge of the rubber-like elastic plate is bonded to the rigid plate,
Since the other surface is not adhered to the rigid plate, the advantage of the non-adhesion method that it does not harden during large deformation is utilized.
【００２１】の構成は、からまでの構成を２種以
上組合わせることにより、形状保持効果をさらに高め
る。The configuration (1) further enhances the shape retention effect by combining two or more configurations described above.
【００２２】[0022]
【実施例】以下、本発明の実施例を説明する。EXAMPLES Examples of the present invention will be described below.
【００２３】第１の発明（上記の構成）は、図１に示
すように、剛性板３である鋼板に薄いゴム状弾性板７で
あるゴムシートを接着するものである。この構造のゴム
シート７は、加硫接着によって付けると接着強度を高く
取れ、剥離し難くなる。接着はゴム状弾性板２と接触す
る部分だけでよいが、図示したように全面を覆うと、剛
性板３の耐蝕性を向上し、この面からも寿命を向上でき
る。積層ゴム支承体１としての組立ては、このようにゴ
ムシート７で被覆された剛性板３とゴム状弾性板２を、
位置決めして交互に積層するだけでよく、非接着型の特
徴の一つである組立性の良さが、そのまま生かされる。
この構造は、ゴム状弾性板２と剛性板３がゴム対ゴムの
摩擦すべりによって接触するので、大変形時にも固定力
を大きく取れ、形状変形を防止できる。As shown in FIG. 1, the first aspect of the present invention is to bond a rubber sheet, which is a thin rubber-like elastic plate 7, to a steel plate, which is the rigid plate 3. When the rubber sheet 7 having this structure is attached by vulcanization adhesion, the adhesive strength can be made high and it becomes difficult to peel it off. Bonding is required only at the portion in contact with the rubber-like elastic plate 2, but if the entire surface is covered as shown in the drawing, the corrosion resistance of the rigid plate 3 is improved, and the life can be improved also from this surface. To assemble the laminated rubber bearing 1, the rigid plate 3 covered with the rubber sheet 7 and the rubber-like elastic plate 2 are
It is only necessary to position them and stack them alternately, and the good assembling property, which is one of the features of the non-adhesive type, can be utilized as it is.
In this structure, the rubber-like elastic plate 2 and the rigid plate 3 are brought into contact with each other by a rubber-to-rubber friction sliding, so that a large fixing force can be obtained even in the case of large deformation and the shape deformation can be prevented.
【００２４】第２の発明（上記の構成）は、図２に示
すように、ゴム状弾性板２と剛性板３の積層体に上下方
向の貫通孔９を設け、この内部に柱状の弾性体８を埋め
込むものである。この柱状の弾性体８は、積層ゴム支承
体１の水平方向の動きを許容しつつ、特に大変形時に積
層ゴム支承体１に復元力を与えるもので、例えば図示し
たゴム棒の単体、あるいはゴム状弾性板と剛性板を接着
状態で積層した従来型の積層ゴム支承体（図示せず）を
用いることができる。この積層ゴム支承体１の組立て
は、中心部に孔を開けたゴム状弾性板と剛性板を位置決
めして積層し、その内部に形成された貫通孔９に、柱状
の弾性体８を圧入するか、またはこの弾性体８に穴のあ
いたゴム状弾性板と剛性板を交互に一枚づつ嵌め込んで
行う。図示例の弾性体８は、ゴム棒の単体の両端面に鋼
製の端板１０を固着したもので、形状規制を確実に行う
ため、この端板１０を取付板４に設けた段差部に嵌め込
み、ボルト１１で固定している。As shown in FIG. 2, the second aspect of the present invention has a through hole 9 formed in the vertical direction in a laminated body of the rubber-like elastic plate 2 and the rigid plate 3, and has a columnar elastic body inside thereof. 8 is embedded. This column-shaped elastic body 8 allows the laminated rubber bearing 1 to move in the horizontal direction and gives a restoring force to the laminated rubber bearing 1 especially during large deformation. A conventional laminated rubber bearing (not shown) in which the elastic plate and the rigid plate are laminated in an adhesive state can be used. In the assembly of this laminated rubber bearing 1, a rubber-like elastic plate having a hole at its center and a rigid plate are positioned and laminated, and a columnar elastic body 8 is press-fitted into a through hole 9 formed therein. Alternatively, a rubber-like elastic plate having holes and a rigid plate are alternately fitted into the elastic body 8 one by one. The elastic body 8 in the illustrated example is one in which steel end plates 10 are fixed to both end faces of a single rubber rod, and in order to reliably perform the shape regulation, the end plates 10 are attached to the step portion provided on the mounting plate 4. It is fitted and fixed with bolts 11.
【００２５】第３の発明（上記の構成）は、積層ゴム
支承体１が水平方向に変形するとき、剛性板３のスライ
ド量を規制しようとするもので、図３に示すように、弾
性板３のゴム状弾性板２から側方に張り出した部分に、
積層方向に見て重なる貫通孔１２を設け、この貫通孔１
２に位置規制棒１３をスライド可能に挿通している。The third invention (the above-mentioned structure) is intended to regulate the sliding amount of the rigid plate 3 when the laminated rubber bearing 1 is deformed in the horizontal direction. As shown in FIG. 3 to the portion protruding laterally from the rubber-like elastic plate 2,
A through hole 12 that overlaps when viewed in the stacking direction is provided.
The position regulating rod 13 is slidably inserted in the position 2.
【００２６】この構造において、水平方向変形時には上
下の取付板４がスライドし、積層体側面の沿面距離が変
化する。したがって、１本の位置規制棒１３で全ての剛
性板３の位置規制をすることができない。そこで、位置
規制棒１３を上側の剛性板３を位置規制するものと、下
側の剛性板３を位置規制するものに分け、夫々の一端を
取付板４に、フレキシブルジョイント１４で結合してい
る。各位置規制棒１３の長さは、変形のない状態で自由
端が、対向する取付板４に達することなく、かつ、水平
方向に最大の変形をしたときでも、自由端が中間位置の
剛性板３を越える長さとする。なお、この位置規制棒１
３に、伸縮自在のテレスコピック構造のものを採用し、
その両端を取付板４に結合すれば、図示例のように上下
に分割する必要はなく、１本で全ての剛性板３の位置規
制ができる。In this structure, the upper and lower mounting plates 4 slide during horizontal deformation, and the creepage distance on the side surface of the laminated body changes. Therefore, it is not possible to restrict the positions of all the rigid plates 3 with one position restricting rod 13. Therefore, the position regulating rod 13 is divided into one for regulating the position of the upper rigid plate 3 and one for regulating the position of the lower rigid plate 3, and one end of each is connected to the mounting plate 4 by a flexible joint 14. . The length of each of the position regulating rods 13 is such that the free end does not reach the opposing mounting plate 4 in a state where there is no deformation, and even when the maximum deformation occurs in the horizontal direction, the rigid plate has the free end in the intermediate position. The length should exceed 3. In addition, this position regulating rod 1
Adopting a telescopic structure that can expand and contract to 3,
If both ends of the rigid plate 3 are connected to the mounting plate 4, it is not necessary to divide the upper and lower parts as in the illustrated example, and the position of all the rigid plates 3 can be regulated by one.
【００２７】また、この位置規制棒１３は、例えば鋼棒
が使用され、図示を省略するが、剛性板３の周囲に分散
させて複数本設けられる。フレキシブルジョイント１４
は、位置規制棒１３が剛性板３の所定範囲内の貫通孔１
２を摺動し、ここから逸脱しないように、一端を止める
もので、図示例では柔軟性のあるゴムを利用している。As the position regulating rods 13, for example, steel rods are used, and although not shown, a plurality of rods are provided around the rigid plate 3 in a dispersed manner. Flexible joint 14
Is a through hole 1 in which the position regulating rod 13 is within a predetermined range of the rigid plate 3.
2 is slid and one end is stopped so as not to deviate from it, and in the illustrated example, flexible rubber is used.
【００２８】このような第３の発明の構造によれば、剛
性板３に貫設した位置規制棒１３が、水平方向変形時
に、各剛性板３に対し、その上下方向の位置に応じた割
合で動くようにスライド量を規制し、大変形時にも残留
変形を起こさない。According to such a structure of the third invention, the position regulating rod 13 penetrating the rigid plate 3 is proportional to each rigid plate 3 in the vertical direction when it is deformed in the horizontal direction. The amount of slide is regulated so that it can be moved with, and residual deformation does not occur even during large deformation.
【００２９】第４の発明（上記の構成）は、図４に示
すように、１枚のゴム状弾性板２と１枚の剛性板３の片
面同士を接着したものを一単位とし、これの複数個を同
一の向きで非接着状態で積層して、積層ゴム支承体１を
製作する。この構成におけるゴム状弾性板２の一方の面
と剛性板３との接着は加硫接着するのが剥離強度を高め
る上で好ましい。この構造は、上述したように剛性板３
の一方の面がゴム状弾性板２と接着され、他方の面が非
接着となっているので、大変形時にゴム状弾性板２の周
縁部が硬化しないという上記改良型の特長を生かしなが
ら、接着された面によってゴム状弾性板２と剛性板３の
相互間のすべりをなくして、形状変形を少なくできる。As shown in FIG. 4, the fourth invention (the above-mentioned structure) has one rubber-like elastic plate 2 and one rigid plate 3 bonded to each other on one side as one unit. A plurality of laminated rubber bearings 1 are manufactured by laminating a plurality of them in the same direction in a non-bonded state. It is preferable to bond one surface of the rubber-like elastic plate 2 and the rigid plate 3 in this configuration by vulcanization in order to enhance the peel strength. This structure has the same structure as the rigid plate 3 as described above.
Since one surface of the rubber-like elastic plate 2 is adhered to the rubber-like elastic plate 2 and the other surface is non-adhesive, the peripheral edge portion of the rubber-like elastic plate 2 is not hardened at the time of large deformation, while utilizing the advantage of the improved type described above. The bonded surfaces can eliminate slippage between the rubber-like elastic plate 2 and the rigid plate 3 and reduce shape deformation.
【００３０】第５の発明（上記の構成）は、上記第１
〜第４の発明の構成を２種以上組合わせるもので、全て
の組合わせが可能である。例えば、第２の発明である積
層ゴム支承内に柱状弾性体９を埋め込む構造を、他の発
明と組合わせる場合は、図１、図３、図４の構造におい
てゴム状弾性板２と剛性板３の中心部に孔を開ければよ
く、第３の発明である位置規制棒１３を用いる構造を、
他の発明と組合わせる場合は、図１、図２、図４の構造
において剛性板３の所定位置に貫通孔１２を設ければよ
い。A fifth aspect of the present invention (the above configuration) is the first aspect described above.
~ Two or more configurations of the fourth invention are combined, and all combinations are possible. For example, when the structure of embedding the columnar elastic body 9 in the laminated rubber bearing which is the second invention is combined with another invention, the rubber-like elastic plate 2 and the rigid plate in the structures of FIGS. 1, 3 and 4 are used. It suffices to make a hole in the center of the third structure, and the structure using the position regulating rod 13 of the third invention is
In the case of combining with another invention, the through hole 12 may be provided at a predetermined position of the rigid plate 3 in the structures shown in FIGS.
【００３１】なお、第１の発明（上記の構成）と第４
の発明（上記の構成）の組合わせは、剛性板３の一面
にゴム状弾性板２を接着し、その反対面に薄いゴムシー
トを接着したもの、あるいは、積層ゴム支承体１の上半
分を第１の発明の構造とし、下半分を第４の発明の構造
とする場合等がある。第５の発明で、異なる部分に対す
るものを組合わせると、形状保持効果を高めることがで
きる。The first invention (the above-mentioned structure) and the fourth invention
In the combination of the invention (the above-mentioned configuration), the elastic plate 2 is adhered to one surface of the rigid plate 3 and the thin rubber sheet is adhered to the opposite surface, or the upper half of the laminated rubber support 1 is There is a case where the structure of the first invention is used and the lower half is the structure of the fourth invention. In the fifth aspect of the invention, the shape retention effect can be enhanced by combining different parts.
【００３２】上記第１〜第４の発明について、ゴム状弾
性板３の厚みを７ｍｍ、その積層数を１０としたものを
製作し、大変形に対する挙動を測定したところ上述した
理論通りの特性が確認された。これら製作例の構造で、
ゴム状弾性板の積層数を１とすると、７０ｍｍの水平方
向変位を与えても、免震に必要なバネ特性を失わず、充
分な形状復元性が得られる。また、積層数を複数とした
場合は、ゴム総厚の４倍以上の水平方向変位に対して
も、同様の性能が得られることを確認している。With respect to the above-mentioned first to fourth inventions, a rubber-like elastic plate 3 having a thickness of 7 mm and the number of laminated layers of 10 was manufactured and the behavior against large deformation was measured. confirmed. With the structure of these manufacturing examples,
If the number of laminated rubber-like elastic plates is 1, even if a horizontal displacement of 70 mm is applied, the spring characteristics necessary for seismic isolation are not lost, and sufficient shape restoration is obtained. Further, it has been confirmed that when the number of laminated layers is plural, the same performance can be obtained even when the horizontal displacement is four times or more the total rubber thickness.
【００３３】[0033]
【発明の効果】本発明によれば、非接着でゴム状弾性板
と剛性板を積層し、載荷重量による摩擦力で固着状態に
する固着型の積層ゴム支承体において、大変形時のゴム
状弾性板と剛性板のすべりを最小限にとどめ、形状復元
性を確保できる。According to the present invention, a non-adhesive rubber-like elastic plate and a rigid plate are laminated, and a fixed type laminated rubber bearing which is fixed by frictional force due to the applied load is used. The slippage between the elastic plate and the rigid plate can be minimized, and shape restoration can be secured.
【図１】 剛性板に薄いゴムシートを加硫接着する本発
明の第１の構成を示す側面図FIG. 1 is a side view showing a first configuration of the present invention in which a thin rubber sheet is vulcanized and adhered to a rigid plate.
【図２】 積層ゴム支承の中心部に柱状の弾性体を埋め
込む本発明の第２の構成を示す側断面図FIG. 2 is a side sectional view showing a second structure of the present invention in which a columnar elastic body is embedded in the center of a laminated rubber bearing.
【図３】 剛性板を水平方向の動きを規制する本発明の
第３の構成を示す側断面図FIG. 3 is a side sectional view showing a third structure of the present invention for restricting the horizontal movement of the rigid plate.
【図４】 １枚のゴム状弾性板と１枚の剛性板を加硫接
着したものを一単位とし、非接着状態で積層する本発明
の第４の構成を示す側面図FIG. 4 is a side view showing a fourth structure of the present invention in which one rubber-like elastic plate and one rigid plate are vulcanized and bonded together, and the units are laminated in a non-bonded state.
【図５】 積層ゴム支承体の一般的構造を示す側面図
（ａ）と平面図（ｂ）FIG. 5 is a side view (a) and a plan view (b) showing a general structure of a laminated rubber bearing.
【図６】 積層ゴム支承体を建築物に用いた免震構造を
示す側面図FIG. 6 is a side view showing a seismic isolation structure using a laminated rubber bearing for a building.
１ 積層ゴム支承体 ２ ゴム状弾性板 ３ 剛性板 ４ 取付板 ５ 構造物 ６ 基礎 ７ 薄いゴム状弾性板 ８ 柱状の弾性体 １２ 貫通孔 １３ 位置規制棒 １４ フレキシブルジョイント 1 Laminated Rubber Bearing 2 Rubber Elastic Plate 3 Rigid Plate 4 Mounting Plate 5 Structure 6 Foundation 7 Thin Rubber Elastic Plate 8 Columnar Elastic Body 12 Through Hole 13 Position Control Rod 14 Flexible Joint
Claims (5)
構成され、重量物を水平方向に揺動可能に載置支持する
積層ゴム支承体において、 上記ゴム状弾性板と剛性板の積層を非接着状態で行うと
共に、上記剛性板のゴム状弾性板との接触面に、薄いゴ
ム状弾性板を接着したことを特徴とする積層ゴム支承
体。1. A laminated rubber bearing which is constructed by alternately laminating a rubber-like elastic plate and a rigid plate and supports a heavy object so as to be swingable in a horizontal direction. A laminated rubber bearing, wherein lamination is performed in a non-adhesive state, and a thin rubber elastic plate is adhered to a contact surface of the rigid plate with the rubber elastic plate.
構成され、重量物を水平方向に揺動可能に載置支持する
積層ゴム支承体において、 上記ゴム状弾性板と剛性板の積層を非接着状態で行うと
共に、この積層体に上下方向の貫通孔を設け、この内部
に柱状の弾性体を埋め込んだことを特徴とする積層ゴム
支承体。2. A laminated rubber bearing which is constructed by alternately laminating a rubber-like elastic plate and a rigid plate and supports a heavy object so as to be swingable in a horizontal direction. A laminated rubber bearing characterized in that lamination is performed in a non-bonded state, a vertical through hole is provided in the laminated body, and a columnar elastic body is embedded in the through hole.
構成され、重量物を水平方向に揺動可能に載置支持する
積層ゴム支承体において、 上記ゴム状弾性板と剛性板の積層を非接着状態で行うと
共に、各剛性板のゴム状弾性板から側方に張り出した部
分に、積層方向に見て重なる貫通孔を設け、この貫通孔
に位置規制棒をスライド可能に挿通し、免震動作時の水
平方向変位を各剛性板が等分するように規制したことを
特徴とする積層ゴム支承体。3. A laminated rubber bearing which is constructed by alternately laminating a rubber-like elastic plate and a rigid plate, and supports a heavy object so as to be swingable in a horizontal direction. In addition to stacking in a non-bonded state, through holes that overlap each other in the stacking direction are provided in the parts of each rigid plate that project laterally from the rubber-like elastic plate, and the position regulating rods can be slidably inserted into these through holes. , A laminated rubber bearing characterized in that horizontal displacement during seismic isolation is regulated so that each rigid plate is equally divided.
構成され、重量物を水平方向に揺動可能に載置支持する
積層ゴム支承体において、 １枚のゴム状弾性板と１枚の剛性板の片面同士を加硫接
着により張合わせたものを一単位とし、これの複数個
を、同一の向きで非接着状態で積層したことを特徴とす
る積層ゴム支承体。4. A laminated rubber bearing, which is constructed by alternately laminating rubber-like elastic plates and rigid plates and supports a heavy object so as to be swingable in a horizontal direction. One rubber-like elastic plate and one rubber-like elastic plate are provided. A laminated rubber bearing characterized in that one rigid plate is bonded to one side by vulcanization adhesion as one unit, and a plurality of these are laminated in the same direction in a non-adhesive state.
構成され、重量物を水平方向に揺動可能に載置支持する
積層ゴム支承体において、 請求項１〜請求項４に記載した構造を２種以上組合わせ
たことを特徴とする積層ゴム支承体。5. A laminated rubber bearing which is constructed by alternately laminating rubber-like elastic plates and rigid plates, and which supports a heavy object so as to be swingable in a horizontal direction, according to any one of claims 1 to 4. A laminated rubber bearing characterized by combining two or more of the above structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4224872A JP2839988B2 (en) | 1992-07-31 | 1992-07-31 | Laminated rubber bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4224872A JP2839988B2 (en) | 1992-07-31 | 1992-07-31 | Laminated rubber bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0650025A true JPH0650025A (en) | 1994-02-22 |
| JP2839988B2 JP2839988B2 (en) | 1998-12-24 |
Family
ID=16820495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4224872A Expired - Fee Related JP2839988B2 (en) | 1992-07-31 | 1992-07-31 | Laminated rubber bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2839988B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003074629A (en) * | 2001-08-30 | 2003-03-12 | Ohbayashi Corp | Laminated rubber |
| CN106351494A (en) * | 2016-10-20 | 2017-01-25 | 北京工业大学 | Self-resetting assembly type subway station flexible antiseismic structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02176227A (en) * | 1988-12-28 | 1990-07-09 | Showa Electric Wire & Cable Co Ltd | Antivibration isolator |
| JPH04122837U (en) * | 1991-01-30 | 1992-11-05 | 昭和電線電纜株式会社 | Seismic isolation isolator |
-
1992
- 1992-07-31 JP JP4224872A patent/JP2839988B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02176227A (en) * | 1988-12-28 | 1990-07-09 | Showa Electric Wire & Cable Co Ltd | Antivibration isolator |
| JPH04122837U (en) * | 1991-01-30 | 1992-11-05 | 昭和電線電纜株式会社 | Seismic isolation isolator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003074629A (en) * | 2001-08-30 | 2003-03-12 | Ohbayashi Corp | Laminated rubber |
| CN106351494A (en) * | 2016-10-20 | 2017-01-25 | 北京工业大学 | Self-resetting assembly type subway station flexible antiseismic structure |
| CN106351494B (en) * | 2016-10-20 | 2019-09-27 | 北京工业大学 | A kind of Self-resetting assembled subway station flexible anti-shock structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2839988B2 (en) | 1998-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20080222975A1 (en) | Sliding-type laminated plate bearing and structure | |
| KR20090026329A (en) | Earthquake isolation device | |
| US5904010A (en) | Elastomeric seismic isolation bearing and method | |
| US9429205B2 (en) | Elastomeric isolator | |
| US5161338A (en) | Laminated rubber support assembly | |
| JP4061818B2 (en) | Seismic isolation device | |
| JPH0650025A (en) | Laminated rubber support body | |
| JPH11166592A (en) | Base isolation body | |
| JP2002070943A (en) | Slip support device for base isolation | |
| JPH02129430A (en) | Vibration damping device for structure | |
| JP4868435B2 (en) | Laminated rubber body with lead plug | |
| KR200384918Y1 (en) | A form memory bearing apparatus for structure | |
| JP2000291733A (en) | Compound base isolation unit and base isolation structure | |
| JP2000297558A (en) | Base isolation device | |
| JP2801693B2 (en) | Laminated rubber bearing | |
| JPH11153190A (en) | Laminated rubber supporting body and base isolation building | |
| JP5136622B2 (en) | Laminated rubber body with lead plug | |
| JP2831889B2 (en) | Laminated rubber bearing | |
| JP6982350B1 (en) | Seismic isolation bearing device for structures | |
| JP3562711B2 (en) | Sliding bearing for seismic isolation | |
| JPH0635766B2 (en) | Laminated rubber support | |
| JP4631274B2 (en) | Laminated rubber seismic isolation device mounting structure | |
| JP2000065135A (en) | Laminated rubber support | |
| JPH10115123A (en) | Vibration isolation device | |
| JP2000291732A (en) | Compound base isolation unit and base isolation structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19980908 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |