JP2014084970A - Seismic isolation member - Google Patents
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Abstract
Description
本発明は、主として地震震動発生面側と免震対象部材側との間に介在させることに依って、地震発生時において免震作用が奏されるようにした免震部材に関する。 The present invention relates to a seismic isolation member that is provided with a seismic isolation effect when an earthquake occurs mainly by being interposed between a seismic vibration generating surface side and a seismic isolation target member side.
従来、例えば地震の震動に対する免震化を図る機構において、横揺れ等を吸収するための部材たる柱状を呈する支持用部材(小棒状部材)は、積層ゴムなどのゴム柱とすることを通例とした(例えば、特許文献1参照。)。 Conventionally, for example, in a mechanism for seismic isolation against earthquake vibration, a supporting member (small bar-shaped member) that exhibits a columnar shape as a member for absorbing rolling or the like is usually a rubber column such as laminated rubber. (For example, see Patent Document 1).
上記したようなゴム柱であると、その可撓性の及び伸縮性の調整が非常に困難であり、殆どゴム素材の特性に委ねざるを得ない。 従って、例えば強度的に太いゴム柱を用いた場合、その可撓性が強すぎて免震作用に齟齬をきたしてしまうこととなる。 In the case of the rubber column as described above, it is very difficult to adjust its flexibility and stretchability, and it is almost left to the characteristics of the rubber material. Therefore, for example, when a rubber column having a large strength is used, its flexibility is too strong, and the seismic isolation action is disturbed.
更に、地震には短周期地震動(周期1秒前後)と長周期地震動(周期5秒以上)とがあり、上記のようなゴム柱に依存した免震装置である、縦揺れ的振動である短周期地震動に対する対応は可能であっても、横揺れ的な振動である長周期地震動が発生した場合は、その振幅が大きいため、長さ不足によりその振幅に対応できず、また、対応できるだけの長さのものを用いた場合は座屈等が生じてしまうと推定された。 In addition, there are short-period ground motions (around 1 second) and long-period ground motions (periods of 5 seconds or more). Earthquakes are seismic isolation devices that rely on rubber columns as described above, and are short pitch vibrations. Even if it is possible to deal with periodic ground motions, if long-period ground motions that are rolling vibrations occur, the amplitude is large, so the amplitude cannot be accommodated due to insufficient length, and the length is long enough to accommodate. It was estimated that buckling and the like would occur when using the same one.
そのため従来にあっては、短周期震動用と長周期震動用の二つの免震用部材を設置する必要性が生じ、必然的に設置コストの高騰性並びに施工作業の煩雑化と言うような問題が伴った。 Therefore, in the past, it became necessary to install two seismic isolation members for short-period vibration and long-period vibration, which inevitably resulted in problems such as high installation costs and complicated construction work. Accompanied.
本発明はこのような従来の問題点の解消化を企図した「免震用部材」と言う新規な製品の提供を図ったものである。 The present invention is intended to provide a new product called “a member for seismic isolation” which intends to eliminate such conventional problems.
本発明は請求項1に記載のように、中央を最丈低部とする制御案内用凹状円弧状部1bを水平基盤1aの上面に突設して成る凹状面形成部材1を、地震震動発生面側Aに取付け、下面中央を最丈低部とする制御案内用凸状円弧状部2bを水平基盤2aの下面に突設して成る凸状面形成部材2を、免震対象部材側Bに取付け、上記凹状面形成部材1と凸状面形成部材2とを、可撓性を具えた柱状支持体を介して所定間隔を保った対向状態に支持し、凹状面形成部材1と凸状面形成部材2の水平方向のズレ動きに基づき、長周期地震動を免震的に吸収させると共に、当該ズレ動きが最大限となった際、制御案内用凹状円弧状部1bの周縁に対する制御案内用凸状円弧状部2bが衝接に基づくストッパー作用が奏されるように構成した免震部材に係る。 According to the present invention, the concave surface forming member 1 formed by projecting the control guide concave arc-shaped portion 1b having the lowest height at the center on the upper surface of the horizontal base 1a is formed as described in claim 1. A convex surface forming member 2 formed by projecting a convex arcuate portion 2b for control guidance on the lower surface of the horizontal base 2a, which is attached to the surface side A and has the center of the lower surface at the lowest height, The concave surface forming member 1 and the convex surface forming member 2 are supported in a state of being opposed to each other at a predetermined interval via a flexible columnar support, and are convex with the concave surface forming member 1. Based on the horizontal displacement movement of the surface forming member 2, long-period ground motion is absorbed in a seismic manner, and when the displacement movement is maximized, the control guidance for the periphery of the concave arcuate portion 1 b for control guidance is provided. The seismic isolation member is configured such that the convex arcuate portion 2b has a stopper action based on a collision.
本発明は請求項2に記載のように、可撓性及び伸縮性を具えたゴム製軸体1を地震震動発生面側Aに立設すると共に、免震対象部材側Bに垂設したコイルスプリング2を、当該ゴム製軸体1に対して摺動自在に嵌合させ、当該ゴム製軸体1は上下震動及び周期の早い震動である短周期地震動に対してはその伸縮及び振れ動き基づき免震作用を生じさせ、長周期地震動のようにゆっくりとした大きな振動の場合は、ゴム製軸体1とコイルスプリング2との摺動的伸縮性に基づき当該震動に対応できる長さに即応させることに依って、免震作動を奏させるように構成した請求項1または請求項2の何れかに記載の免震用部材を実施の態様とする。 The present invention provides a coil in which a rubber shaft 1 having flexibility and stretchability is erected on the seismic vibration generating surface side A and suspended on the seismic isolation target member side B as described in claim 2 The spring 2 is slidably fitted to the rubber shaft 1, and the rubber shaft 1 is based on the expansion and contraction motions of the vertical vibrations and the short-period ground motions having a fast period. In the case of a large and slow vibration such as a long-period ground motion, the base is made to adapt to the length that can handle the vibration based on the sliding elasticity of the rubber shaft 1 and the coil spring 2. Accordingly, the seismic isolation member according to claim 1 or 2 configured to cause seismic isolation operation is an embodiment.
本発明は請求項3に記載のように、地震震動発生面を地盤とし、免震対象部材として建物等構築部材として成る請求項1または請求項2の何れかに記載の免震部材を実施の態様とする。 As described in claim 3, the present invention implements the seismic isolation member according to any one of claims 1 and 2, wherein the seismic vibration generating surface is the ground, and the building isolation member is the seismic isolation target member. Let it be an aspect.
本発明は請求項4に記載のように、可撓性を具えた柱状支持体として、コイルスプリング4を凸状面形成部材2側に立設すると共に、可撓性及び伸縮性を具えたゴム製軸体3を凸状面形成部材2側に垂設し、当該スプリング4に対して当該ゴム製軸体3を摺動自在に嵌合させるように構成した請求項1乃至請求項3の何れかに記載の免震部材を実施の態様とする。 According to the present invention, as described in claim 4, as a columnar support body having flexibility, a coil spring 4 is erected on the convex surface forming member 2 side, and rubber having flexibility and stretchability is provided. The shaft-making body 3 is suspended from the convex surface forming member 2 side, and the rubber shaft body 3 is slidably fitted to the spring 4. The seismic isolation member described in the above is an embodiment.
本発明は請求項1に記載のような構成、すなわち、中央を最丈低部とする制御案内用凹状円弧状部1bを水平基盤1aの上面に突設して成る凹状面形成部材1を、地震震動発生面側Aに取付け、下面中央を最丈低部とする制御案内用凸状円弧状部2bを水平基盤2aの下面に突設して成る凸状面形成部材2を、免震対象部材側Bに取付け、上記凹状面形成部材1と凸状面形成部材2とを、可撓性を具えた柱状支持体を介して所定間隔を保った対向状態に支持し、凹状面形成部材1と凸状面形成部材2の水平方向のズレ動きに基づき、長周期地震動を免震的に吸収させると共に、当該ズレ動きが最大限となった際、制御案内用凹状円弧状部1bの周縁に対する制御案内用凸状円弧状部2bが衝接に基づくストッパー作用が奏されるように構成したから、長周期地震動が発生した際に、その免震的吸収作動が奏される。 そして、当該長周期地震動が本発明に係る免震部材の能力を超えるような大きな振動の場合、自動的なるストッパー作用が奏されるため、地震震動発生面側Aと免震対象部材側Bとの連携が断たれるような両者の離脱化と言うような事態発生をよく防止することとなる。 The present invention has a configuration as described in claim 1, that is, a concave surface forming member 1 formed by projecting a control guide concave arc-shaped portion 1 b having the lowest height at the center on the upper surface of the horizontal base 1 a, A convex surface forming member 2 that is mounted on the seismic vibration generating surface side A and has a convex arcuate portion 2b for control guidance with the center of the bottom surface at the lowest point protruding from the bottom surface of the horizontal base 2a is subject to seismic isolation. The concave surface forming member 1 is attached to the member side B, and supports the concave surface forming member 1 and the convex surface forming member 2 in a facing state with a predetermined interval therebetween via a flexible columnar support. Based on the horizontal displacement of the convex surface forming member 2, long-period ground motion is absorbed in a seismically isolated manner, and when the displacement is maximized, the control guide concave arc-shaped portion 1b is Since the control guide convex arc-shaped part 2b is configured to have a stopper action based on a collision, a long-period earthquake There when generated, the seismic isolation absorption operation is achieved. And, in the case of such a large vibration that the long-period ground motion exceeds the capability of the seismic isolation member according to the present invention, since an automatic stopper action is exerted, the seismic motion generation surface side A and the seismic isolation target member side B, This will often prevent the occurrence of a situation where both parties are disconnected.
本発明は請求項2に記載のような構成、すなわち、可撓性及び伸縮性を具えたゴム製軸体1を地震震動発生面側Aに立設すると共に、免震対象部材側Bに垂設したコイルスプリング2を、当該ゴム製軸体1に対して摺動自在に嵌合させ、当該ゴム製軸体1は上下震動及び周期の早い震動である短周期地震動に対してはその伸縮及び振れ動き基づき免震作用を生じさせ、長周期地震動のようにゆっくりとした大きな振動の場合は、ゴム製軸体1とコイルスプリング2との摺動的伸縮性に基づき当該震動に対応できる長さに即応させることに依って、免震作動を奏させるように構成したから、一つの免震部材で短周期地震動と長周期地震動という振動の方向、速さ、揺れ幅の著しく異なる二つのタイプの地震に対する免震作用を発揮することができる。 従って、これをそれぞれ別の免震部材に依存する様にしていた従来における問題点である、設置コストの高騰性並びに施工作業の煩雑性と言うような事柄は全く解消化される。
そして、地表上の構築物に対する免震部材としての使用以外、例えばフロアー上の美術品或いはコンピュータ等に対する免震用部材としての利用を図ることも可能化される。
In the present invention, the rubber shaft 1 having flexibility and stretchability is erected on the seismic vibration generating surface side A and suspended from the seismic isolation target member side B. The provided coil spring 2 is slidably fitted to the rubber shaft 1, and the rubber shaft 1 can be expanded and contracted with respect to vertical vibrations and short-period ground motions having a fast period. In the case of a large, slow vibration such as a long-period ground motion that causes seismic isolation based on the swing motion, the length that can handle the vibration based on the sliding elasticity of the rubber shaft 1 and the coil spring 2 Because it is configured to have a seismic isolation action by quickly adapting to the two types of vibration, there are two types of vibration, short-period ground motion and long-period ground motion, with significantly different directions, speeds, and amplitudes. Can demonstrate seismic isolation against earthquakes . Therefore, the problems such as the increase in the installation cost and the complexity of the construction work, which are the conventional problems that depend on different seismic isolation members, are completely solved.
In addition to the use as a seismic isolation member for a structure on the ground surface, it is also possible to use it as a seismic isolation member for, for example, art on the floor or a computer.
本発明は請求項3記載のような構成、すなわち、地震震動発生面Aを地盤とし、免震対象部材Bとして建物等構築部材とすることに依り、一般の建築用免震部材として広くその実施が図られる。 The present invention is widely implemented as a general building seismic isolation member by using the structure as claimed in claim 3, that is, the seismic vibration generating surface A as the ground and the seismic isolation target member B as a building construction member. Is planned.
本発明は請求項4に記載のような構成、すなわち、可撓性を具えた柱状支持体として、コイルスプリング4を凸状面形成部材2側に立設すると共に、可撓性及び伸縮性を具えたゴム製軸体3を凸状面形成部材2側に垂設し、当該スプリング4に対して当該ゴム製軸体3を摺動自在に嵌合させるように、請求項2とは天地逆な形態としても、これと同様な作用効果を奏することができる。 従って、施工上の都合に依っては、このような形態での実施を妨げない。 According to the present invention, the coil spring 4 is erected on the convex surface forming member 2 side as a columnar support body having flexibility, that is, flexible and stretchable. The rubber shaft body 3 provided is suspended from the convex surface forming member 2 side, and the rubber shaft body 3 is slidably fitted to the spring 4 so that the rubber shaft body 3 is slidably fitted. Even if it is a form, there can exist an effect similar to this. Therefore, implementation in this form is not hindered depending on construction convenience.
図2は本発明に係る免震部材を、地震震動発生面側Aと免震対象部材側Bとの間に取付けた状態を表した断面図である。 同図において、1は凹状面形成部材であって、図3に示すように、水平基盤1aの上面に中央を最丈低部とする制御案内用凹状円弧状部1bを突設してある。 なお、図面に示す実施例にあっては、当該水平基盤1aを正四角形状としてあるが、これに限定されるものではなく、例えば円形等であっても可とする。 FIG. 2 is a cross-sectional view illustrating a state in which the seismic isolation member according to the present invention is attached between the seismic vibration generating surface side A and the seismic isolation target member side B. In FIG. 3, reference numeral 1 denotes a concave surface forming member, and as shown in FIG. 3, a control guide concave arc-shaped portion 1b having a center at the lowest height is provided on the upper surface of the horizontal base 1a. In the embodiment shown in the drawings, the horizontal base 1a has a regular square shape. However, the present invention is not limited to this. For example, a circular shape or the like is acceptable.
2は凸状面形成部材であって、図4に示すように水平基盤2aの下面に中央を最丈低部(裏返し状態にある同図においては最丈高部として描かれている)とする制御案内用凸状円弧状部2bを突設してある。 なお、図面に示す実施例にあっては、当該水平基盤2aを正四角形状としてあるが、これに限定されるものではなく、例えば円形等であっても可とする。 Reference numeral 2 denotes a convex surface forming member, as shown in FIG. 4, where the center of the lower surface of the horizontal base 2 a is the lowest part (in FIG. 4, the highest part is drawn in the figure in the inverted state). A convex convex arcuate portion 2b for control guidance is provided. In the embodiment shown in the drawings, the horizontal base 2a has a regular square shape. However, the present invention is not limited to this. For example, a circular shape or the like is acceptable.
上記した凹状面形成部材1を地震震動発生面側Aの上面に固設すると共に、凸状面形成部材2を免震対象部材側Bの下面に固設することに依り、当該制御案内用凹状円弧状部1bと制御案内用凸状円弧状部2aとは、下記する柱状支持体から成る免震的支持手段を介して、所定間隔を保って互いに対向するように構成してある。 The above-described concave surface forming member 1 is fixed on the upper surface of the seismic vibration generating surface side A, and the convex surface forming member 2 is fixed on the lower surface of the seismic isolation target member side B. The arcuate portion 1b and the control guide convex arcuate portion 2a are configured to face each other at a predetermined interval via a seismic isolation means comprising a columnar support described below.
ところで、上記した制御案内用凹状円弧状部1bと制御案内用凸状円弧状部2bとは、互いに合致可能とする円弧状曲面を具えていることを原則とする。 然しなから、これに限定されることはない。 すなわち、長周期地震動が生じて対抗する両弧状部1b,2bの相対的な水平方向のズレ動きが生じた際、そして、そのズレ動き量が対応可能以上になった場合、図1に示すように制御案内用凹状円弧状部1bの丈高である周縁部対して、制御案内用凸状円弧状部2bが衝接することに依って、これ以上のズレ動き運動を阻止することを目的とするものである。 従って、このような目的達成可能とする弧状を具えたものであれば、如何なる弧状部であっても可とする。 By the way, in principle, the control guide concave arcuate portion 1b and the control guide convex arcuate portion 2b are provided with arcuate curved surfaces that can be matched with each other. However, it is not limited to this. That is, when long-period ground motion occurs and the opposing horizontal arc-shaped portions 1b and 2b move in a relative horizontal direction, and when the amount of shift is more than can be handled, as shown in FIG. It is intended to prevent further displacement movement motion by the control guide convex arcuate portion 2b abutting against the height of the control guide concave arcuate portion 1b. Is. Accordingly, any arc-shaped portion is acceptable as long as it has an arc shape that can achieve such an object.
上述した制御案内用凹状円弧状部1bと制御案内用凸状円弧状部2aに対する、柱状支持体から成る免震的支持手段であるが、これは下記のような構成に成るものである。 The above-described seismic isolation means comprising a columnar support for the control guide concave arc-shaped portion 1b and the control guide convex arc-shaped portion 2a has the following configuration.
3はゴム製の軸体であって、凹状面形成部材1における水平基盤1aの四隅に立設してある。 4は当該軸体3に対して摺動自在に嵌合させるためのコイルスプリングであって、凸状面形成部材2における水平基盤2aの四隅対応箇所に垂設してある。 Reference numeral 3 denotes a rubber shaft, which is erected at the four corners of the horizontal base 1a of the concave surface forming member 1. A coil spring 4 is slidably fitted to the shaft body 3, and is suspended from the four corners of the horizontal base 2a of the convex surface forming member 2.
なお、図示の実施例にあってはゴム製の軸体3を地震震動発生面側Aに位置させ、コイルスプリング4を免震対象部材側Bに位置させるように構成してある。 然し乍、これを逆の状態、すなわち、コイルスプリング4を地震震動発生面側Aに設け、軸体3を免震対象部材側Bに設けるように構成しても良い。 本発明はこのような形態で実施する場合もある。 In the illustrated embodiment, the rubber shaft 3 is positioned on the seismic vibration generating surface side A, and the coil spring 4 is positioned on the seismic isolation target member side B. However, this may be reversed, that is, the coil spring 4 may be provided on the seismic vibration generating surface side A, and the shaft body 3 may be provided on the seismic isolation target member side B. The present invention may be implemented in such a form.
そして、本発明は地震震動発生面側Aを地表とし、免震対象部材側Bを建物等構築部材とすることに依り一般的な構築物に対する免震部材としての利用を主たる目的とする。 然し乍、地震震動発生面側Aを建物のフロアーとし、免震対象部材側Bを美術品またはコンピュータ等保護対象物とすることに依り、これらに対する免震部材としての利用を図ることもできる。 The main object of the present invention is to use the seismic vibration generating surface side A as the ground surface and the seismic isolation target member side B as a construction member such as a building as a seismic isolation member for general structures. However, the seismic vibration generating surface side A can be used as a floor of a building, and the seismic isolation target member side B can be a protected object such as art or a computer.
ところで、前述したゴム製軸体3であるが、これは所要の可撓性及び伸縮性を具えたものである。 そして、上記したコイルスプリング4であるが、これは所要の可撓性(反り及びその復元)を具えたものである。 By the way, the rubber shaft body 3 described above has the required flexibility and stretchability. The coil spring 4 described above has the required flexibility (warping and its restoration).
なお、ゴム製軸体3の固定は所要の接着剤を用いて行うことを原則とするが、強力なる固定化を図ることが可能であれば、これ以外、例えばアンカーボルト等を利用するように構成しても良い。 更に、固定することなくこれを凹状孔5内においては摺動移動できるように構成しても良い。 この場合、当該接着剤塗布層等の固定手段は省略する。 また、ゴム製軸体1の下端なフランジ状部分に歯車状の突起を形成し、これが凹状孔5の内壁に係止可能とするように構成する場合もある。 In principle, the rubber shaft 3 is fixed using a required adhesive. However, if it is possible to achieve strong fixing, other than this, for example, an anchor bolt or the like is used. It may be configured. Further, it may be configured such that it can slide in the concave hole 5 without being fixed. In this case, fixing means such as the adhesive coating layer is omitted. In some cases, a gear-like protrusion is formed on the flange-like portion at the lower end of the rubber shaft 1 so as to be engageable with the inner wall of the concave hole 5.
6はコイルスプリング4の固定剤充填部であって、主としてコンクリートの充填等に依って形成されるが、これ以外、強力性を具えたものであれば適宜な手段であって可とする。 Reference numeral 6 denotes a fixing agent filling portion of the coil spring 4, which is mainly formed by filling concrete or the like, but any other suitable means can be used as long as it has strength.
ところで、図面に示す実施例にあっては、ゴム製軸体3の下端は凹状孔5内に位置させてあるが、これは露出部分の長さ的調節のためと、上記した接着剤3を用いることなくゴム製軸体1の下端を自由に動くようにした場合、その横方向の移動距離を規制する役割も担っている。 By the way, in the embodiment shown in the drawings, the lower end of the rubber shaft 3 is positioned in the concave hole 5, which is used for adjusting the length of the exposed portion and for the adhesive 3 described above. When the lower end of the rubber shaft 1 is moved freely without being used, it also plays a role of regulating the lateral movement distance.
本発明を例えばビル等の構築物に対する免震用部材として用いる場合は、図2に示すように地震震動発生面側Aの下面に対して凸状面形成部材2を、また、凸状面形成部材2を免震対象部材側Bに対して、夫々固定化することに依り、免震作用がそうされることとなる。 なお、本発明は上述のようにして通常複数個所に取付けるものとする。 When the present invention is used as a seismic isolation member for a structure such as a building, for example, as shown in FIG. The seismic isolation action is performed by fixing 2 to the seismic isolation target member side B, respectively. In addition, this invention shall be normally attached to several places as mentioned above.
図2に示すような状態において、短周期地震動を感知した際、これが横揺れの場合は、ゴム製軸体3が下端側すなわち地震震動発生面側を動点とするような振れ動きを生じさせることに依り、免震対象部材側に対する震動の伝達を吸収して免震作用を奏させる。 In the state shown in FIG. 2, when short-period ground motion is detected, if this is a roll, the rubber shaft 3 causes a swinging motion with the lower end side, that is, the seismic vibration generating surface side as a moving point. Depending on the situation, the transmission of the vibration to the seismic isolation target member side is absorbed and the seismic isolation effect is exhibited.
また、縦揺れの場合はゴム製軸体3の軸方向の伸縮作用に基づきこれを吸収し、建物側に対する震動の伝達を教習して免震作用を奏させる。 なお、この際に極めて強い上下震動に基づき、ゴム製軸体3が過剰に膨張した場合は、その外周に嵌合されているコイルスプリング4によって過膨張が阻止され、これが座屈してしまうようなことを防止する。 Further, in the case of pitching, the rubber shaft 3 is absorbed based on the expansion and contraction action in the axial direction, and the transmission of vibration to the building side is learned and the seismic isolation action is exhibited. At this time, if the rubber shaft 3 is excessively expanded based on extremely strong vertical vibration, the coil spring 4 fitted to the outer periphery of the rubber shaft 3 is prevented from over-expanding and buckling. To prevent that.
そして、長周期地震動が発生した場合、その震動は横方向に大きくかつゆっくりとした (周期5秒以上の横振れ)のものであるため、図1に示すように地震震動発生面側Aのゆっくりとしたかつ大きな揺れ振幅に即応してゴム製軸体3が振れ動き、その地震の振幅が、図1に示す状態の縦長さより大きくなった場合は、ゴム製軸体3がスプリング4から抜き方向に移動してその振幅長さに対応する伸長が図られ、また振動の復元時には伸縮した後再び伸長する。 このような伸縮作動を呈することに依り、地震震動発生面側Aの図1に矢印で示す方向への反復移動に基づき(地震の震動に即応した移動に基づき)、長周期地震動を吸収し、免震作用が奏される。 And when long-period ground motion occurs, the ground motion is large and slow in the lateral direction (lateral vibration with a period of 5 seconds or more), so as shown in FIG. If the rubber shaft 3 swings in response to the large swing amplitude and the amplitude of the earthquake becomes larger than the vertical length in the state shown in FIG. 1, the rubber shaft 3 is pulled out from the spring 4. Is expanded to correspond to the amplitude length, and when restoring the vibration, it expands and contracts and then expands again. By exhibiting such expansion and contraction, it absorbs long-period ground motion based on repetitive movement in the direction indicated by the arrow in Fig. 1 on the seismogenic ground side A (based on movement in response to earthquake motion), Seismic isolation is achieved.
そして、当該長周期地震動が極めて大きく、本発明の想定能力を超えてしまうような場合は、図1に示すように制御案内用凹状円弧状部1bの丈高である周縁部対して、制御案内用凸状円弧状部2bが衝接することに依って、これ以上のズレ動き運動を阻止することとなる。 すなわち、ストッパー作用が奏されることとなる。 When the long-period ground motion is extremely large and exceeds the assumed capacity of the present invention, the control guide is provided to the peripheral edge portion having a high height as shown in FIG. Due to the contact of the convex arcuate portion 2b for use, further displacement movement is prevented. That is, a stopper action is exhibited.
そして、本発明は、建物等の構築部材に対する免震用としての使用以外、例えばフロアー上に載置する美術品、コンピュータ機具等に対する免震用部材としての利用を図ることも可能であり、本発明はこのような利用形態を図ることもできる。 The present invention can be used as a seismic isolation member for works of art, computer equipment, etc. placed on the floor, for example, in addition to the use for seismic isolation for construction members such as buildings. The invention can also be used in such usage.
A 地震震動発生面側
B 免震対象部材側
1 凹状面形成部材
1a 基盤
1b 制御案内用凹状円弧状部
2 凸状面形成部材
2a 基盤
2b 制御案内用凸状円弧状部
3 ゴム製軸体
4 コイルスプリング
5 凹状孔
6 固定剤充填部
A Earthquake vibration side
B Seismic isolation object side 1 Concave surface forming member
1a Foundation
1b Concave arc-shaped part for control guidance 2 Convex surface forming member
2a Foundation
2b Convex arcuate part for control guide 3 Rubber shaft 4 Coil spring 5 Concave hole 6 Fixing agent filling part
Claims (4)
下面中央を最丈低部とする制御案内用凸状円弧状部(2b)を水平基盤(2a)の下面に突設して成る凸状面形成部材(2)を、免震対象部材側(B)に取付け、
上記凹状面形成部材(1)と凸状面形成部材(2)とを、可撓性を具えた柱状支持体を介して所定間隔を保った対向状態に支持し、凹状面形成部材(1)と凸状面形成部材(2)の水平方向のズレ動きに基づき、長周期地震動を免震的に吸収させると共に、当該ズレ動きが最大限となった際、制御案内用凹状円弧状部(1b)の周縁に対する制御案内用凸状円弧状部(2b)の衝接に基づくストッパー作用が奏されるように構成した免震部に係る。 A concave surface forming member (1) formed by protruding a concave arc-shaped portion for control guidance (1b) with the center at the lowest part on the upper surface of the horizontal base (1a) is placed on the seismic vibration generating surface side (A). Installation,
The convex surface forming member (2) formed by projecting a convex arcuate portion (2b) for control guidance with the lowest center at the bottom surface on the lower surface of the horizontal base (2a) B)
The concave surface forming member (1) and the convex surface forming member (2) are supported in a facing state at a predetermined interval via a columnar support body having flexibility, and the concave surface forming member (1). And the convex surface forming member (2) absorb the long-period ground motion in a seismically isolated manner based on the horizontal displacement, and when the displacement is maximized, the control guide concave arc (1b ) Related to the seismic isolation portion configured so as to exhibit a stopper action based on the contact of the control guide convex arcuate portion (2b) with the periphery.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109881784A (en) * | 2019-01-22 | 2019-06-14 | 上海大学 | A kind of cambered surface slide type three-dimensional shock isolation support |
CN110397175A (en) * | 2019-07-02 | 2019-11-01 | 广州大学 | A kind of SMA negative stiffness damping device |
IT202100029837A1 (en) * | 2021-11-25 | 2023-05-25 | N T A S R L | HORIZONTALLY YIELDING SUPPORT AND CONSTRAINT DEVICE FOR BUILDING STRUCTURES |
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JPH029201U (en) * | 1988-07-01 | 1990-01-22 | ||
JP3151981B2 (en) * | 1992-12-28 | 2001-04-03 | 日本電気株式会社 | Detonator |
JP2010230156A (en) * | 2009-03-06 | 2010-10-14 | Three M Innovative Properties Co | Vibration resistant member and method for manufacturing the same |
JP2010270881A (en) * | 2009-05-25 | 2010-12-02 | Shimizu Corp | Fail safe mechanism of base isolation device and method of installing the same |
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2012
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JPH029201U (en) * | 1988-07-01 | 1990-01-22 | ||
JP3151981B2 (en) * | 1992-12-28 | 2001-04-03 | 日本電気株式会社 | Detonator |
JP2010230156A (en) * | 2009-03-06 | 2010-10-14 | Three M Innovative Properties Co | Vibration resistant member and method for manufacturing the same |
JP2010270881A (en) * | 2009-05-25 | 2010-12-02 | Shimizu Corp | Fail safe mechanism of base isolation device and method of installing the same |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109881784A (en) * | 2019-01-22 | 2019-06-14 | 上海大学 | A kind of cambered surface slide type three-dimensional shock isolation support |
CN110397175A (en) * | 2019-07-02 | 2019-11-01 | 广州大学 | A kind of SMA negative stiffness damping device |
IT202100029837A1 (en) * | 2021-11-25 | 2023-05-25 | N T A S R L | HORIZONTALLY YIELDING SUPPORT AND CONSTRAINT DEVICE FOR BUILDING STRUCTURES |
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