JP4471238B1 - Bridge or building support device - Google Patents

Bridge or building support device Download PDF

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JP4471238B1
JP4471238B1 JP2009243255A JP2009243255A JP4471238B1 JP 4471238 B1 JP4471238 B1 JP 4471238B1 JP 2009243255 A JP2009243255 A JP 2009243255A JP 2009243255 A JP2009243255 A JP 2009243255A JP 4471238 B1 JP4471238 B1 JP 4471238B1
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link member
notch
horizontal
upper structure
elongated hole
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JP2011089304A (en
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茂 守谷
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Miwa Tech Co Ltd
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Abstract

【課題】構造が簡単で、上部構造と下部構造の共振を防止し、地震時の大きな水平変位に対して対応可能でエネルギー吸収性能の大きな橋梁または建築物の支承装置を提供することを目的とする。
【解決手段】橋梁または建築物の支承装置において、相対変位する構造物の上部構造と下部構造との間に、一方の構造の水平方向の相対変位を他方の構造に強制的に伝達する強制変位手段を配置し、前記強制変位手段は前記上部構造または前記下部構造のいずれか一方に固定された支点を介して、一方の構造の水平方向の相対変位を他方の構造にその変位量の絶対値が同じで逆方向の相対変位として強制的に伝達することを特徴とする
【選択図】 図４An object of the present invention is to provide a bridge or building support device that has a simple structure, prevents resonance between an upper structure and a lower structure, can cope with a large horizontal displacement during an earthquake, and has a large energy absorption performance. To do.
In a support device for a bridge or a building, a forced displacement that forcibly transmits a horizontal relative displacement of one structure to the other structure between an upper structure and a lower structure of a structure that is relatively displaced. The forced displacement means converts the relative displacement in the horizontal direction of one structure to the other structure through the fulcrum fixed to either the upper structure or the lower structure, and the absolute value of the displacement amount. 4 is forcibly transmitted as a relative displacement in the opposite direction in the same direction.

Description

本発明は、建築物または橋梁等の構造物の上部構造と下部構造との間に配置され、上部構造と下部構造の共振を防止し、地震時の大きな揺れの強さ＝応答加速度を小さく抑えることができ（免震効果）、強い地震動に対して安全性を確保する（安全性能）ことが可能な橋梁または建築物の支承装置に関する。   The present invention is arranged between an upper structure and a lower structure of a structure such as a building or a bridge, prevents resonance of the upper structure and the lower structure, and suppresses a large shaking strength at the time of earthquake = response acceleration. The present invention relates to a support device for a bridge or a building that can (seismic isolation effect) and can ensure safety (safety performance) against strong earthquake motion.

兵庫県南部地震以降、積層ゴム系の免震支承を用いて建築物や橋梁等の構造物の長周期化と高減衰化により地震力の低減と耐震性の向上を図る免震構造が一般的に採用されるようになってきている。   After the Hyogo-ken Nanbu Earthquake, seismic isolation structures that reduce the seismic force and improve the seismic resistance through the use of laminated rubber-based seismic isolation bearings with longer period and higher damping of structures such as buildings and bridges are common Has been adopted.

また、機能分離型の支承構造として、すべり支承と水平力を受け持つゴムバッファ構造を組み合わせた支承構造が採用される事例が増えつつある。   In addition, as a function-separated type support structure, an example in which a support structure combining a sliding support and a rubber buffer structure that handles a horizontal force is increasingly used.

特開２００１−１４０９７６号公報JP 2001-140976 A 特開２００１−２２７１９７号公報JP 2001-227197 A

しかしながら、積層ゴム系の免震支承は、地盤、構造条件などからその適用範囲が限定されることや、ゴム系の免震支承が一般に割高であることから、免震支承としての適用が限定的であった。   However, the application range of seismic isolation bearings with laminated rubber is limited due to the ground and structural conditions, and the seismic isolation bearings with rubber are generally expensive. Met.

また、機能分離型の支承構造は、ゴム系の免震支承に比較し低コストであるが、すべり支承の摩擦係数は、速度、面圧等の各種依存性があり、さらに、軸力の変動あるいは地震動の入力方向により摩擦力が変化するため、これら摩擦係数の各種依存性や摩擦力の変化がすべり支承を用いた免震支承の応答性状に影響を与える恐れがある。さらに、地震時の大きな水平変位に対しては対応できず、支承装置が破壊される恐れがあり、上部構造と下部構造の共振を抑制する効果が十分でないという問題を有するものであった。   In addition, the function-separated bearing structure is less expensive than rubber-based seismic isolation bearings, but the friction coefficient of sliding bearings depends on various factors such as speed and surface pressure. Or, since the frictional force changes depending on the input direction of the ground motion, the dependence of these friction coefficients and the change of the frictional force may affect the response characteristics of the seismic isolation bearing using the sliding bearing. Furthermore, it cannot cope with a large horizontal displacement at the time of an earthquake, and there is a possibility that the bearing device may be broken, and there is a problem that the effect of suppressing resonance between the upper structure and the lower structure is not sufficient.

本発明は、上記従来の問題を解決するものであって、構造が簡単で、上部構造と下部構造の共振を防止し、地震時の大きな水平変位に対して対応可能な橋梁または建築物の支承装置を提供することを目的とする。   The present invention solves the above-mentioned conventional problems, is a simple structure, prevents resonance between the upper structure and the lower structure, and supports a bridge or a building that can cope with a large horizontal displacement during an earthquake. An object is to provide an apparatus.

本発明の橋梁または建築物の支承装置は、前記課題を解決するために、中央部を上部構造又は下部構造のいずれか一方に固定した中央軸に回動自在に軸支され、両端部側に長穴又は切欠を形成した直線状のリンク部材と、前記上部構造に固定され前記リンク部材の一方の側の長穴又は切り欠きに前記リンク部材の回動に伴い前記長穴又は切り欠きに沿って相対移動可能に係合した上部構造側軸と、前記下部構造に固定され前記リンク部材の他方の側の長穴又は切り欠きに前記リンク部材の回動に伴い前記長穴又は切り欠きに沿って相対移動可能に係合した下部構造側軸と、を備え、前記中央軸と上部構造側軸との距離と、前記中央軸と下部構造側軸との距離を同じくしたことを特徴とする。 In order to solve the above-described problems, the bridge or building support device of the present invention is pivotally supported by a central shaft having a central portion fixed to either the upper structure or the lower structure, and is supported at both ends. A linear link member having a long hole or notch, and a long hole or notch on one side of the link member fixed to the upper structure along the long hole or notch as the link member rotates. The upper structure side shaft engaged with the lower structure and the elongated hole or notch on the other side of the link member fixed to the lower structure along the elongated hole or notch as the link member rotates. And a lower structure side shaft engaged so as to be relatively movable, and the distance between the central axis and the upper structure side axis is the same as the distance between the central axis and the lower structure side axis .

また、本発明の橋梁または建築物の支承装置は、前記上部構造または前記下部構造の一方に固定された中央垂直軸により中央部が軸支され、両端部側に長穴又は切欠を形成した直線状のリンク部材と、前記下部構造に固定され前記リンク部材の一方の側の長穴又は切り欠きに前記リンク部材の回動に伴い前記長穴又は切り欠きに沿って相対移動可能に係合した第１垂直軸と、前記上部構造に固定され前記リンク部材の他方の側の長穴又は切り欠きに前記リンク部材の回動に伴い前記長穴又は切り欠きに沿って相対移動可能に係合した第２垂直軸と、を備えたことを特徴とする。 The bridge or building support apparatus according to the present invention is a straight line in which a central portion is pivotally supported by a central vertical shaft fixed to one of the upper structure or the lower structure, and a long hole or a notch is formed on both ends. And a link member fixed to the lower structure and engaged with a slot or notch on one side of the link member so as to be relatively movable along the slot or notch as the link member rotates. The first vertical shaft is engaged with the elongated hole or notch on the other side of the link member fixed to the upper structure so as to be relatively movable along the elongated hole or notch as the link member rotates. And a second vertical axis .

また、本発明の橋梁または建築物の支承装置は、平行に配置された１対の一方のリンク部材と、平行に配置された１対の他方のリンク部材とを備え、前記一方のリンク部材と他方のリンク部材を直交する方向に配置したことを特徴とする。 The bridge or building support device of the present invention includes a pair of one link members arranged in parallel and a pair of other link members arranged in parallel, and the one link member and The other link member is arranged in the orthogonal direction .

また、本発明の橋梁または建築物の支承装置は、前記上部構造または前記下部構造の一方に固定された中央水平軸により中央部が軸支され、両端部側に長穴又は切欠を形成した直線状のリンク部材と、前記下部構造に固定され前記リンク部材の一方の側の長穴又は切り欠きに前記リンク部材の回動に伴い前記長穴又は切り欠きに沿って相対移動可能に係合した第１水平軸と、前記上部構造に固定され前記リンク部材の他方の側の長穴又は切り欠きに前記リンク部材の回動に伴い前記長穴又は切り欠きに沿って相対移動可能に係合した第２水平軸と、を備えたことを特徴とする。 The bridge or building support device according to the present invention is a straight line in which a central portion is pivotally supported by a central horizontal shaft fixed to one of the upper structure or the lower structure, and a long hole or a notch is formed on both ends. And a link member fixed to the lower structure and engaged with a slot or notch on one side of the link member so as to be relatively movable along the slot or notch as the link member rotates. The first horizontal shaft is engaged with the elongated hole or notch on the other side of the link member fixed to the upper structure so as to be relatively movable along the elongated hole or notch as the link member rotates. And a second horizontal axis .

中央部を上部構造又は下部構造のいずれか一方に固定した中央軸に回動自在に軸支され、両端部側に長穴又は切欠を形成した直線状のリンク部材と、前記上部構造に固定され前記リンク部材の一方の側の長穴又は切り欠きに前記リンク部材の回動に伴い前記長穴又は切り欠きに沿って相対移動可能に係合した上部構造側軸と、前記下部構造に固定され前記リンク部材の他方の側の長穴又は切り欠きに前記リンク部材の回動に伴い前記長穴又は切り欠きに沿って相対移動可能に係合した下部構造側軸と、を備え、前記中央軸と上部構造側軸との距離と、前記中央軸と下部構造側軸との距離を同じくする構成により、上部構造と下部構造を強制的に相対変位させるので上部構造と下部構造の共振を防止し、上部構造の水平変位を抑制することが可能になる。また、下部構造に発生する変位は、上部構造側からみて負の変位となるため、上部構造の水平変位が小さくなり上部構造の水平変位を抑えることが可能となる。
前記上部構造または前記下部構造の一方に固定された中央垂直軸により中央部が軸支され、両端部側に長穴又は切欠を形成した直線状のリンク部材と、前記下部構造に固定され前記リンク部材の一方の側の長穴又は切り欠きに前記リンク部材の回動に伴い前記長穴又は切り欠きに沿って相対移動可能に係合した第１垂直軸と、前記上部構造に固定され前記リンク部材の他方の側の長穴又は切り欠きに前記リンク部材の回動に伴い前記長穴又は切り欠きに沿って相対移動可能に係合した第２垂直軸と、を備えた構成により、上部構造又は下部構造の一方の相対変位が、第１垂直軸又は第２垂直軸からリンク部材に伝達され、リンク部材が中央垂直軸を軸として回動して他方の構造を強制的に逆方向に相対変位させることが可能となる。強制変位伝達は、中央垂直軸を軸としたリンク部材の回動で行われるため、リンク部材の両端の軌跡は円弧となるため、第１垂直軸、第２垂直軸をリンク部材に対して位置可変に係合することにより対応する。
平行に配置された１対の一方のリンク部材と、平行に配置された１対の他方のリンク部材とを備え、前記一方のリンク部材と他方のリンク部材を直交する方向に配置した構成により、全方向の水平変位に対して対応が可能となる。
、両端部側に長穴又は切欠を形成した直線状のリンク部材と、前記下部構造に固定され前記リンク部材の一方の側の長穴又は切り欠きに前記リンク部材の回動に伴い前記長穴又は切り欠きに沿って相対移動可能に係合した第１垂直軸と、前記上部構造に固定され前記リンク部材の他方の側の長穴又は切り欠きに前記リンク部材の回動に伴い前記長穴又は切り欠きに沿って相対移動可能に係合した第２垂直軸と、を備えた構成により、上部構造又は下部構造の一方の相対変位がリンク部材を介して他方の構造を強制的に逆方向に相対変位させることが可能となる。強制変位伝達は、中央水平軸を軸としたリンク部材の回動で行われるため、リンク部材の両端の移動軌跡は円弧となるため、第１水平軸、第２水平軸を上部構造、下部構造に対して位置可変に設置することにより対応する。
以上 A linear link member that is pivotally supported by a central shaft that has a central portion fixed to either the upper structure or the lower structure, and that has a long hole or notch formed at both ends, and is fixed to the upper structure. An upper structure side shaft engaged with an elongated hole or notch on one side of the link member so as to be relatively movable along the elongated hole or notch as the link member rotates, and fixed to the lower structure. A lower structure side shaft engaged with an elongated hole or notch on the other side of the link member so as to be relatively movable along the elongated hole or notch as the link member rotates, and the central axis And the upper structure side axis and the distance between the central axis and the lower structure side axis are the same so that the upper structure and the lower structure are forcibly displaced relative to each other, thereby preventing resonance between the upper structure and the lower structure. Can suppress horizontal displacement of superstructure To become. Further, since the displacement generated in the lower structure is a negative displacement as viewed from the upper structure side, the horizontal displacement of the upper structure is reduced, and the horizontal displacement of the upper structure can be suppressed.
A linear link member having a central portion pivotally supported by a central vertical shaft fixed to one of the upper structure or the lower structure and having elongated holes or notches formed at both end sides, and the link fixed to the lower structure A first vertical shaft engaged with an elongated hole or notch on one side of the member so as to be relatively movable along the elongated hole or notch with the rotation of the link member; and the link fixed to the upper structure and the link And a second vertical shaft engaged with the elongated hole or notch on the other side of the member so as to be relatively movable along the elongated hole or notch as the link member rotates. Alternatively, the relative displacement of one of the lower structures is transmitted from the first vertical axis or the second vertical axis to the link member, and the link member rotates about the central vertical axis to force the other structure in the opposite direction. It can be displaced. Since the forced displacement transmission is performed by the rotation of the link member about the central vertical axis, the trajectory at both ends of the link member is an arc, so the first vertical axis and the second vertical axis are positioned with respect to the link member. It responds by engaging variably.
With a pair of one link member arranged in parallel and a pair of other link members arranged in parallel, the one link member and the other link member are arranged in a direction orthogonal to each other , It is possible to deal with horizontal displacement in all directions.
A linear link member in which elongated holes or notches are formed on both end sides, and the elongated hole fixed to the lower structure on one side of the link member or notched as the link member rotates. Alternatively, the first vertical shaft engaged so as to be relatively movable along the notch and the elongated hole fixed to the upper structure on the other side of the link member or the notch along with the rotation of the link member. Or a second vertical shaft engaged so as to be relatively movable along the notch, so that the relative displacement of one of the upper structure and the lower structure is forced to reverse the other structure via the link member. Can be relatively displaced. Since the forced displacement is transmitted by the rotation of the link member about the central horizontal axis, the movement trajectory at both ends of the link member is an arc, so the first horizontal axis and the second horizontal axis are the upper structure and the lower structure. This can be done by installing a variable position.
more than

本発明の橋梁または建築物の支承装置の実施形態を示す図である。It is a figure which shows embodiment of the bridge or building support apparatus of this invention. 本発明の橋梁または建築物の支承装置の実施形態を示す図である。It is a figure which shows embodiment of the bridge or building support apparatus of this invention. 本発明の橋梁または建築物の支承装置の実施形態を示す図である。It is a figure which shows embodiment of the bridge or building support apparatus of this invention. 本発明の橋梁または建築物の支承装置の実施形態を示す図である。It is a figure which shows embodiment of the bridge or building support apparatus of this invention. 本発明の橋梁または建築物の支承装置の実施形態を示す図である。It is a figure which shows embodiment of the bridge or building support apparatus of this invention. 本発明の橋梁または建築物の支承装置の実施形態を示す図である。It is a figure which shows embodiment of the bridge or building support apparatus of this invention.

本発明の実施の形態を図により説明する。図１、図２は、本発明の橋梁または建築物の支承装置の第１実施形態を示す図である。   Embodiments of the present invention will be described with reference to the drawings. 1 and 2 are views showing a first embodiment of a bridge or building support device of the present invention.

橋梁または建築物等の構造物の支承装置１は、下部構造２と上部構造３との間に設置される。下部構造２には下鋼板４がアンカーボルト等の固定手段を介して設置される。下鋼板４上には、ゴム支承５とリンク部材支持台７が設置される。ゴム支承５上には連結鋼板６が固定される。ゴム支承５は複数の補強鋼板を積層した積層ゴムにより構成される。ゴム支承５と連結鋼板６を加硫一体成形しても良い。   A support device 1 for a structure such as a bridge or a building is installed between the lower structure 2 and the upper structure 3. A lower steel plate 4 is installed in the lower structure 2 via a fixing means such as an anchor bolt. A rubber support 5 and a link member support 7 are installed on the lower steel plate 4. A connecting steel plate 6 is fixed on the rubber support 5. The rubber support 5 is composed of laminated rubber in which a plurality of reinforcing steel plates are laminated. The rubber support 5 and the connecting steel plate 6 may be integrally formed by vulcanization.

下鋼板４上にゴム支承５の両側に互いに平行に伸びるリンク部材支持台７が設置される。リンク部材支持台７に強制変位伝達手段であるリンク部材８の中央部が中央垂直軸１０を介して回動可能に軸支される。図１、図２に示される実施形態では、リンク部材支持台７にそれぞれ１個のリンク部材８を配置しているが、リンク部材８の数は支承装置１の規模等により決定する。   Link member support bases 7 extending in parallel to each other are installed on both sides of the rubber support 5 on the lower steel plate 4. A central portion of a link member 8 serving as a forced displacement transmission means is pivotally supported on the link member support 7 via a central vertical shaft 10. In the embodiment shown in FIGS. 1 and 2, one link member 8 is arranged on each link member support 7. The number of link members 8 is determined by the scale of the support device 1 and the like.

リンク部材８両端部側に、第１長穴１１と第２長穴１２が形成される。第１長穴１１には、一端を下部構造３側に固定された連結鋼板６に固定した第１垂直軸１３が第１長穴１１に沿って相対移動可能に係合される。第２長穴１２には、一端を上部構造３に固定された上鋼板９に固定した第２垂直軸１４が第２長穴１２に沿って相対移動可能に係合する。第１垂直軸１３と第２垂直軸１４の中央垂直軸１０からの距離が同じになるように設置する。   A first elongated hole 11 and a second elongated hole 12 are formed on both ends of the link member 8. A first vertical shaft 13 having one end fixed to a connecting steel plate 6 fixed to the lower structure 3 side is engaged with the first long hole 11 so as to be relatively movable along the first long hole 11. A second vertical shaft 14 having one end fixed to the upper steel plate 9 fixed to the upper structure 3 is engaged with the second elongated hole 12 so as to be relatively movable along the second elongated hole 12. The first vertical shaft 13 and the second vertical shaft 14 are installed so that the distance from the central vertical shaft 10 is the same.

上部構造３の水平方向の相対変位は、上部構造３に固定された上鋼板９に一端を固定された第２垂直軸１４と第２長穴１２の係合によりリンク部材８に伝達される。第２垂直軸１４からの上部構造３の水平方向の相対変位によりリンク部材８は中央垂直軸１０を軸として回動する。第２垂直軸１４と第２長穴１２の係合部の位置は、リンク部材８が中央垂直軸１０を軸として回動し、その軌跡が円弧状となるため第２長穴１２に沿って相対移動する。第１垂直軸１３及び第２垂直軸１４をリンク部材８に対して位置可変に係合するために、第１長穴１１及び第２長穴１２に代えてリンク部材８の両端側にＵ字状切り欠きを形成しても良い。   The relative displacement in the horizontal direction of the upper structure 3 is transmitted to the link member 8 by the engagement of the second vertical shaft 14 and one of the second long holes 12 fixed at one end to the upper steel plate 9 fixed to the upper structure 3. The link member 8 rotates about the central vertical shaft 10 by the relative displacement in the horizontal direction of the superstructure 3 from the second vertical shaft 14. The position of the engaging portion between the second vertical shaft 14 and the second long hole 12 is such that the link member 8 rotates about the central vertical shaft 10 and the locus thereof is an arc, so that the locus is along the second long hole 12. Move relative. In order to engage the first vertical shaft 13 and the second vertical shaft 14 with respect to the link member 8 in a variable manner, the U-shape is formed at both ends of the link member 8 instead of the first long hole 11 and the second long hole 12. You may form a notch.

上部構造３の相対変位によるリンク部材８の中央垂直軸１０を軸とした回動は、第１垂直軸１３と第長穴１１の係合により連結鋼板６、連結鋼板６に固定されたゴム支承５を介して下部構造２に強制的に伝達される。第１垂直軸１３と第１長穴１１の係合部の位置は、リンク部材８が中央垂直軸１０を軸として回動し、その軌跡が円弧状となるため第１長穴１１に沿って相対移動する。その際、上部構造３の水平方向の相対変位による下部構造の相対変位は、リンク部材８への水平方向の相対変位の入力軸である第２垂直軸１３と第２長穴１２の係合部と、水平方向の相対変位の出力軸である第１垂直軸１３と第１長穴１１との係合部とは、リンク部材８の回動軸である中央垂直軸１０からの距離が同じであるため、その変位量の絶対値が同じで逆方向の相対変位となる。   The rotation of the link member 8 about the central vertical shaft 10 due to the relative displacement of the upper structure 3 is caused by the engagement of the first vertical shaft 13 and the elongated hole 11 to the connecting steel plate 6 and the rubber bearing fixed to the connecting steel plate 6. 5 is forcibly transmitted to the lower structure 2 via 5. The position of the engaging portion between the first vertical shaft 13 and the first long hole 11 is such that the link member 8 rotates about the central vertical shaft 10 and the trajectory has an arc shape along the first long hole 11. Move relative. At that time, the relative displacement of the lower structure due to the relative displacement of the upper structure 3 in the horizontal direction is the engagement portion between the second vertical shaft 13 and the second elongated hole 12 which is an input shaft for the horizontal relative displacement to the link member 8. The engaging portion between the first vertical shaft 13 that is the output shaft of the horizontal relative displacement and the first elongated hole 11 has the same distance from the central vertical shaft 10 that is the rotation shaft of the link member 8. Therefore, the absolute value of the displacement amount is the same and the relative displacement is in the reverse direction.

地震時に上部構造３及び下部構造２の一方の構造の水平方向の相対変位を他方の構造にその変位量の絶対値が同じで逆方向の相対変位として強制的に伝達するため、上部構造３と下部構造２との共振を防止することができる。その結果、上部構造２の地震時の水平方向の変位を抑制することができる。また、下部構造２に発生する水平方向の相対変位は、上部構造３から見ると負の変位となるため上部構造３の水平方向の変位を低く抑えることができる。図１、図２に示される実施形態は、１方向の水平方向の変位に対応可能なものである。例えば、橋梁用の支承の場合、橋軸直角方向の水平変位をストッパ等の手段により拘束し、橋軸方向の水平変位に対して可動にする。図１、２に示される実施形態では、下鋼板４にゴム支承５を固定しているが、上鋼板９にゴム支承５を固定しても良い。   In order to forcibly transmit the relative displacement in the horizontal direction of one of the upper structure 3 and the lower structure 2 to the other structure at the time of an earthquake as the relative displacement in the opposite direction with the same absolute value. Resonance with the lower structure 2 can be prevented. As a result, the horizontal displacement of the superstructure 2 during an earthquake can be suppressed. Further, since the horizontal relative displacement generated in the lower structure 2 is a negative displacement when viewed from the upper structure 3, the horizontal displacement of the upper structure 3 can be kept low. The embodiment shown in FIG. 1 and FIG. 2 can cope with a horizontal displacement in one direction. For example, in the case of a support for a bridge, the horizontal displacement in the direction perpendicular to the bridge axis is constrained by means such as a stopper so as to be movable with respect to the horizontal displacement in the bridge axis direction. In the embodiment shown in FIGS. 1 and 2, the rubber support 5 is fixed to the lower steel plate 4, but the rubber support 5 may be fixed to the upper steel plate 9.

図３は、図１、図２に示す実施形態の変形例で、リンク部材支持台７に強制変位伝達手段であるリンク部材８を２個の中央部が中央垂直軸１０を介して回動可能に軸支する。また、リンク部材８の両端部に第１長穴１１、第２長穴１２に代えて、第１Ｕ字状切り欠き１１、第２Ｕ字状切り欠き１２を形成する。他の構成は、図１、図２に示される第１実施形態と同様であるので説明を省略する。   FIG. 3 is a modification of the embodiment shown in FIGS. 1 and 2, and a link member 8 that is a forced displacement transmission means can be rotated on a link member support base 7 through a central vertical shaft 10 at two central portions. To support. Further, instead of the first elongated hole 11 and the second elongated hole 12, a first U-shaped notch 11 and a second U-shaped notch 12 are formed at both ends of the link member 8. Other configurations are the same as those of the first embodiment shown in FIGS.

図４、図５は、本発明の橋梁または建築物の支承装置の第２実施形態を示す図である。   4 and 5 are views showing a second embodiment of a bridge or building support apparatus according to the present invention.

この実施形態では、ゴム支承５を挟んで、互いに直交する方向にそれぞれ１対のリンク部材８を配置する。図４、図５に示す実施形態では、リンク部材支持台７にそれぞれ１個のリンク部材８を配置しているが、リンク部材８の数は支承装置１の規模等により決定する。ゴム支承５を挟んで、互いに直交する方向にそれぞれ１対のリンク部材８を配置することにより、全方向の水平方向の変位に対して対応が可能な支承とすることができる。他の構成は、図１、図２に示される第１実施形態と同様であるので説明を省略する。   In this embodiment, a pair of link members 8 are arranged in directions orthogonal to each other with the rubber support 5 interposed therebetween. In the embodiment shown in FIGS. 4 and 5, one link member 8 is arranged on each link member support 7, but the number of link members 8 is determined by the scale of the support device 1 and the like. By arranging a pair of link members 8 in directions orthogonal to each other with the rubber support 5 interposed therebetween, it is possible to provide a support that can cope with horizontal displacement in all directions. Other configurations are the same as those of the first embodiment shown in FIGS.

図６は、本発明の橋梁または建築物の支承装置の第３実施形態を示す図である。   FIG. 6 is a diagram showing a third embodiment of a bridge or building support apparatus according to the present invention.

橋梁または建築物等の構造物の支承装置１は、下部構造２と上部構造３との間に設置される。支承装置１は、下部構造２と上部構造３にそれぞれ第１水平軸１７と第２水平軸１８で軸支されるリンク部材１５を備えている。リンク部材１５の中央部は、下部構造２に固定された中央水平軸支持部材１９に支持された中央水平軸１６に軸支される。中央水平軸１６を上部構造３で支持しても良い。第１水平軸１７と第２水平軸１８の中央水平軸１６からの距離が同じになるように設置する。   A support device 1 for a structure such as a bridge or a building is installed between the lower structure 2 and the upper structure 3. The support device 1 includes a link member 15 that is supported by a lower structure 2 and an upper structure 3 by a first horizontal shaft 17 and a second horizontal shaft 18, respectively. A central portion of the link member 15 is pivotally supported by a central horizontal shaft 16 supported by a central horizontal shaft support member 19 fixed to the lower structure 2. The central horizontal shaft 16 may be supported by the upper structure 3. The first horizontal shaft 17 and the second horizontal shaft 18 are installed so that the distance from the central horizontal shaft 16 is the same.

リンク部材１５を下部構造２に軸支する第１水平軸１７は、下部構造２に設置した第１水平軸支持部材２３に支持される。第１水平軸支持部材２３には第１水平軸１７を上下方向に移動可能にする隙間２４が形成される。また、リンク部材１５を上部構造３に軸支する第２水平軸１８は、上部構造３に設置した第２水平軸支持部材２１に支持される。第２水平軸支持部材２１には第２水平軸１８を上下方向に移動可能にする隙間２２が形成される。 The first horizontal shaft 17 that pivotally supports the link member 15 on the lower structure 2 is supported by a first horizontal shaft support member 23 installed in the lower structure 2. The first horizontal shaft support member 23 is formed with a gap 24 that allows the first horizontal shaft 17 to move in the vertical direction. The second horizontal shaft 18 that pivotally supports the link member 15 on the upper structure 3 is supported by a second horizontal shaft support member 21 installed in the upper structure 3. The second horizontal shaft support member 21 is formed with a gap 22 that allows the second horizontal shaft 18 to move in the vertical direction.

上部構造３の水平方向の相対変位は、上部構造３に設置した第２水平軸支持部材２１に支持された第２水平軸１８からリンク部材１５に伝達される。第２水平軸１８からの上部構造３の水平方向の相対変位によりリンク部材１５は中央水平軸１６を軸として回動する。第２水平軸１８と第２水平軸支持部材２１の係合部の位置は、リンク部材１５が中央水平軸１６を軸として回動し、その軌跡が円弧状となるため第２水平軸支持部材２１の隙間２２に沿って相対移動する。   The relative displacement in the horizontal direction of the upper structure 3 is transmitted from the second horizontal shaft 18 supported by the second horizontal shaft support member 21 installed in the upper structure 3 to the link member 15. The link member 15 rotates about the central horizontal axis 16 by the horizontal relative displacement of the upper structure 3 from the second horizontal axis 18. The position of the engaging portion between the second horizontal shaft 18 and the second horizontal shaft support member 21 is such that the link member 15 rotates about the central horizontal shaft 16 and the locus thereof becomes an arc shape. Relative movement along the gap 22 of 21.

上部構造３の相対変位によるリンク部材１５の中央水平軸１６を軸とした回動は、第１水平軸１７と下部構造２に設置した第１水平軸支持部材２３の係合部から下部構造２に強制的に伝達される。第１水平軸１８の位置は、リンク部材１５が中央水平軸１６を軸として回動し、その軌跡が円弧状となるため下部構造２に設置した第１水平軸支持部材２３の隙間２４に沿って相対移動する。その際、上部構造３の水平方向の相対変位による下部構造の相対変位は、リンク部材１５への水平方向の相対変位の入力軸である第２水平軸１８と、水平方向の相対変位の出力軸である第１水平軸１７は、リンク部材１５の回動軸である中央水平軸１６からの距離が同じであるため、その変位量の絶対値が同じで逆方向の相対変位となる。   The rotation of the link member 15 about the central horizontal axis 16 due to the relative displacement of the upper structure 3 is performed from the engaging portion of the first horizontal axis 17 and the first horizontal axis support member 23 installed on the lower structure 2 to the lower structure 2. It is forcibly transmitted to. The position of the first horizontal shaft 18 is along the gap 24 of the first horizontal shaft support member 23 installed in the lower structure 2 because the link member 15 rotates about the central horizontal shaft 16 and the trajectory has an arc shape. Move relative. At that time, the relative displacement of the lower structure due to the relative displacement in the horizontal direction of the upper structure 3 includes the second horizontal axis 18 that is an input shaft of the horizontal relative displacement to the link member 15 and the output shaft of the horizontal relative displacement. Since the first horizontal shaft 17 is the same distance from the central horizontal shaft 16 that is the rotation shaft of the link member 15, the absolute value of the displacement amount is the same and the relative displacement is in the reverse direction.

地震時に上部構造３と下部構造２を強制的に水平方向に相対変位するため、上部構造３と下部構造２との共振を防止することができる。その結果、上部構造２の地震時の水平方向の変位を抑制することができる。また、下部構造２に発生する水平方向の相対変位は、上部構造３から見ると負の変位となるため上部構造３の水平方向の変位を低く抑えることができる。図５２に示される実施形態は、１方向の水平方向の変位に対応可能なものである。例えば、橋梁用の支承の場合、橋軸直角方向の水平変位をストッパ等の手段により拘束し、橋軸方向の水平変位に対して可動にする。   Since the upper structure 3 and the lower structure 2 are forcibly displaced in the horizontal direction during an earthquake, resonance between the upper structure 3 and the lower structure 2 can be prevented. As a result, the horizontal displacement of the superstructure 2 during an earthquake can be suppressed. Further, since the horizontal relative displacement generated in the lower structure 2 is a negative displacement when viewed from the upper structure 3, the horizontal displacement of the upper structure 3 can be kept low. The embodiment shown in FIG. 52 can cope with a horizontal displacement in one direction. For example, in the case of a support for a bridge, the horizontal displacement in the direction perpendicular to the bridge axis is constrained by means such as a stopper so as to be movable with respect to the horizontal displacement in the bridge axis direction.

本発明の橋梁または建築物の支承装置によれば、上部構造と下部構造を強制的に相対変位させるので上部構造と下部構造の共振を防止し、上部構造の水平変位を抑制することが可能になる。また、下部構造に発生する変位は、上部構造側からみて負の変位となるため、上部構造の水平変位が小さくなり地震力を減衰することが可能となる。   According to the bridge or building support apparatus of the present invention, the upper structure and the lower structure are forcibly displaced relative to each other, so that the resonance between the upper structure and the lower structure can be prevented and the horizontal displacement of the upper structure can be suppressed. Become. Moreover, since the displacement generated in the lower structure is a negative displacement when viewed from the upper structure side, the horizontal displacement of the upper structure is reduced, and the seismic force can be attenuated.

１：支承装置、２：下部構造、３：上部構造、４：下鋼板、５：ゴム支承、６：連結鋼板、７：リンク部材支持台、８：リンク部材、９：上鋼板、１０：中央垂直軸、１１：第１長穴又は第１Ｕ字状切り欠き、１２：第２長穴又は第２Ｕ字状切り欠き、１３：第１垂直軸、１４：第２垂直軸、１５：リンク部材、１６：中央水平軸、１７：第１水平軸、１８：第２水平軸、１９：中央水平軸支持部材、２１：第２水平軸支持部材、２２：隙間、２３：第１水平軸支持部材、２４：隙間   1: Bearing device, 2: Lower structure, 3: Upper structure, 4: Lower steel plate, 5: Rubber bearing, 6: Linked steel plate, 7: Link member support, 8: Link member, 9: Upper steel plate, 10: Center Vertical axis, 11: first slot or first U-shaped notch, 12: second slot or second U-shaped notch, 13: first vertical axis, 14: second vertical axis, 15: link member, 16: central horizontal axis, 17: first horizontal axis, 18: second horizontal axis, 19: central horizontal axis support member, 21: second horizontal axis support member, 22: gap, 23: first horizontal axis support member, 24: Clearance

Claims (4)

中央部を上部構造又は下部構造のいずれか一方に固定した中央軸に回動自在に軸支され、両端部側に長穴又は切欠を形成した直線状のリンク部材と、
前記上部構造に固定され前記リンク部材の一方の側の長穴又は切り欠きに前記リンク部材の回動に伴い前記長穴又は切り欠きに沿って相対移動可能に係合した上部構造側軸と、
前記下部構造に固定され前記リンク部材の他方の側の長穴又は切り欠きに前記リンク部材の回動に伴い前記長穴又は切り欠きに沿って相対移動可能に係合した下部構造側軸と、
を備え、
前記中央軸と上部構造側軸との距離と、前記中央軸と下部構造側軸との距離を同じくしたことを特徴とする橋梁または建築物の支承装置。 A linear link member pivotally supported by a central shaft fixed to either the upper structure or the lower structure and having a long hole or notch formed on both end sides;
An upper structure side shaft fixed to the upper structure and engaged with an elongated hole or notch on one side of the link member so as to be relatively movable along the elongated hole or notch as the link member rotates;
A lower structure side shaft fixed to the lower structure and engaged with an elongated hole or notch on the other side of the link member so as to be relatively movable along the elongated hole or notch with rotation of the link member;
With
A bridge or building support apparatus , characterized in that the distance between the central axis and the upper structure side axis is the same as the distance between the central axis and the lower structure side axis . 前記上部構造または前記下部構造の一方に固定された中央垂直軸により中央部が軸支され、両端部側に長穴又は切欠を形成した直線状のリンク部材と、
前記下部構造に固定され前記リンク部材の一方の側の長穴又は切り欠きに前記リンク部材の回動に伴い前記長穴又は切り欠きに沿って相対移動可能に係合した第１垂直軸と、
前記上部構造に固定され前記リンク部材の他方の側の長穴又は切り欠きに前記リンク部材の回動に伴い前記長穴又は切り欠きに沿って相対移動可能に係合した第２垂直軸と、
を備えたことを特徴とする請求項１に記載の橋梁または建築物の支承装置。 A linear link member in which a central portion is pivotally supported by a central vertical shaft fixed to one of the upper structure or the lower structure, and a long hole or a notch is formed on both end sides ;
A first vertical shaft fixed to the lower structure and engaged with an elongated hole or notch on one side of the link member so as to be relatively movable along the elongated hole or notch as the link member rotates;
A second vertical shaft fixed to the upper structure and engaged with an elongated hole or notch on the other side of the link member so as to be relatively movable along the elongated hole or notch as the link member rotates;
The bridge or building support device according to claim 1, comprising: 平行に配置された１対の一方のリンク部材と、平行に配置された１対の他方のリンク部材とを備え、前記一方のリンク部材と他方のリンク部材を直交する方向に配置したことを特徴とする請求項２に記載の橋梁または建築物の支承装置。 A pair of one link members arranged in parallel and a pair of other link members arranged in parallel, wherein the one link member and the other link member are arranged in a direction orthogonal to each other. The bridge or building support device according to claim 2. 前記上部構造または前記下部構造の一方に固定された中央水平軸により中央部が軸支され、両端部側に長穴又は切欠を形成した直線状のリンク部材と、
前記下部構造に固定され前記リンク部材の一方の側の長穴又は切り欠きに前記リンク部材の回動に伴い前記長穴又は切り欠きに沿って相対移動可能に係合した第１水平軸と、
前記上部構造に固定され前記リンク部材の他方の側の長穴又は切り欠きに前記リンク部材の回動に伴い前記長穴又は切り欠きに沿って相対移動可能に係合した第２水平軸と、
を備えたことを特徴とする請求項１に記載の橋梁または建築物の支承装置。 A linear link member in which a central portion is pivotally supported by a central horizontal shaft fixed to one of the upper structure or the lower structure, and a long hole or a notch is formed on both end sides ;
A first horizontal shaft fixed to the lower structure and engaged with an elongated hole or notch on one side of the link member so as to be relatively movable along the elongated hole or notch as the link member rotates;
A second horizontal shaft fixed to the upper structure and engaged with an elongated hole or notch on the other side of the link member so as to be relatively movable along the elongated hole or notch as the link member rotates;
The bridge or building support device according to claim 1, comprising:
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Publication number Priority date Publication date Assignee Title
CN105064205A (en) * 2015-08-25 2015-11-18 中铁大桥局武汉桥梁特种技术有限公司 Spherical bearing

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JP2008286384A (en) * 2007-05-17 2008-11-27 Yung-Feng Su Damping apparatus

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008286384A (en) * 2007-05-17 2008-11-27 Yung-Feng Su Damping apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105064205A (en) * 2015-08-25 2015-11-18 中铁大桥局武汉桥梁特种技术有限公司 Spherical bearing

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