JP2006226009A - Bridge fall prevention device - Google Patents

Bridge fall prevention device Download PDF

Info

Publication number
JP2006226009A
JP2006226009A JP2005041827A JP2005041827A JP2006226009A JP 2006226009 A JP2006226009 A JP 2006226009A JP 2005041827 A JP2005041827 A JP 2005041827A JP 2005041827 A JP2005041827 A JP 2005041827A JP 2006226009 A JP2006226009 A JP 2006226009A
Authority
JP
Japan
Prior art keywords
bridge
abutment
bridge girder
shaft
damper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2005041827A
Other languages
Japanese (ja)
Inventor
Ichiro Kobayashi
一朗 小林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yokohama Rubber Co Ltd
Original Assignee
Yokohama Rubber Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yokohama Rubber Co Ltd filed Critical Yokohama Rubber Co Ltd
Priority to JP2005041827A priority Critical patent/JP2006226009A/en
Publication of JP2006226009A publication Critical patent/JP2006226009A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Bridges Or Land Bridges (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bridge fall preventing device having an excellent shock absorbing capacity, though it is a simple device. <P>SOLUTION: The bridge fall preventing device is to prevent a bridge beam 1 from falling from a bridge seat 2 or a bridge pier 9 by connecting the bridge beam 1 and the bridge seat 2, or the bridge beam 1 and the other bridge beam 1 by a shaft 3. In the device, at least one end of the shaft 3 is made to protrude from the bridge beam 1 or the bridge seat 2 to be freely slidable. A damper 5 comprising alternating layers of high damping rubbers 5b and steel plates 5a is integrated with the outer periphery of the protruding part. An outer cylinder 6 made of a steel material is fixed to the outer periphery of the damper 5, and the outer cylinder 6 is fixed to the bridge beam 1 or the bridge seat 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

この発明は地震等の災害時に橋桁が橋台や橋脚から落下するのを防止するための落橋防止装置に関し、さらに詳しくは、簡単な装置でありながら、優れた衝撃吸収能力を備えた落橋防止装置に関する。   TECHNICAL FIELD The present invention relates to a falling bridge prevention device for preventing a bridge girder from falling from an abutment or a pier at the time of a disaster such as an earthquake, and more particularly relates to a falling bridge prevention device having an excellent shock absorption capability while being a simple device. .

地震等によって橋脚や橋台に大きな力が作用すると、橋脚や橋台の損壊のみならず、橋桁が橋脚や橋台からずり落ちるという事故が起こる。従来、このような事故を防ぐための落橋防止装置として、橋桁と橋台又は橋桁と橋桁とを連結部材で連結し、この連結部材に種々の緩衝装置を組み込み、この緩衝装置により衝撃力を吸収することが行なわれてきた（例えば、特許文献１、２参照）。   If a large force acts on the pier or abutment due to an earthquake or the like, not only will the bridge pier or the abutment be damaged, but an accident will occur in which the bridge girder falls off the pier or abutment. Conventionally, as a fallen bridge prevention device for preventing such an accident, a bridge girder and an abutment or a bridge girder and a bridge girder are connected by a connecting member, and various shock absorbers are incorporated in the connecting member, and the shock force is absorbed by the shock absorber. (For example, see Patent Documents 1 and 2).

しかしながら、いずれの緩衝装置にあっても、衝撃力の吸収能力を高めるためには、装置自体を大型にしたり、内部機構を複雑にする等の必要があり、未だ研究の余地を残していた。
特開平９−１６５７１９号公報 特開平１０−１９５８２１号公報 However, in any of the shock absorbers, it is necessary to increase the size of the device itself or to complicate the internal mechanism in order to increase the absorbing capability of the impact force, and there is still room for research.
JP-A-9-165719 Japanese Patent Laid-Open No. 10-195821

この発明の目的は、かかる従来の問題点を解消し、簡単な装置でありながら、優れた衝撃吸収能力を備えた落橋防止装置を提供することにある。   An object of the present invention is to solve such a conventional problem and to provide a falling bridge prevention device having an excellent shock absorbing capability while being a simple device.

上記目的を達成するためのこの発明の落橋防止装置は、橋桁と橋台と又は橋桁と橋桁とをシャフトで連結し，橋桁が橋台又は橋脚から落下するのを防止する落橋防止装置において、前記シャフトの少なくとも一方の端部を橋桁又は橋台から摺動自在に突出させ、この突出した部分の外周に高減衰ゴムと鋼板とが交互に積層するダンパーを一体化させると共に、該ダンパーの外周に鋼材からなる外筒を固定し、 該外筒を橋桁又は橋台に固定するようにしたことを要旨とする。   In order to achieve the above object, a falling bridge prevention device according to the present invention includes a bridge girder and an abutment, or a bridge girder and a bridge girder connected by a shaft, and the bridge girder prevention device that prevents the bridge girder from falling from the abutment or the pier. At least one end is protruded slidably from a bridge girder or an abutment, and a damper in which high-attenuation rubber and a steel plate are alternately laminated is integrated on the outer periphery of the protruding portion, and the outer periphery of the damper is made of steel. The gist is that the outer cylinder is fixed and the outer cylinder is fixed to the bridge girder or the abutment.

この発明によれば、橋桁と橋台と又は橋桁と橋桁とを連結するシャフトの少なくとも一方の側の端部を橋桁又は橋台から摺動自在に突出させ、この突出部の外周に高減衰ゴムと鋼板とが交互に積層するダンパーを一体化させると共に、該ダンパーの外周に鋼材からなる外筒を固定し、 該外筒を橋桁又は橋台に固定するようにしたので、地震などにより大きな衝撃力（水平方向）が入力されるとダンパーにおける高減衰ゴムが衝撃エネルギ−を減衰させながら吸収すると共に、ダンパーのエネルギ−吸収能力が限界に達した後は、シャフト自体が衝撃力を吸収して落橋をくい止めるようになっている。したがって、極く簡単な装置でありながら、連結シャフトに加わる衝撃力を効率よく吸収することができる。   According to this invention, the end of at least one side of the shaft connecting the bridge girder and the abutment or the bridge girder and the bridge girder is slidably protruded from the bridge girder or the abutment, and a high damping rubber and a steel plate are formed on the outer periphery of the protruding portion. The dampers that are alternately stacked are integrated, and the outer cylinder made of steel is fixed to the outer periphery of the damper, and the outer cylinder is fixed to the bridge girder or the abutment. Direction), the high damping rubber in the damper absorbs the impact energy while attenuating, and after the energy absorption capacity of the damper reaches the limit, the shaft itself absorbs the impact force and stops the falling bridge. It is like that. Therefore, although it is a very simple device, the impact force applied to the connecting shaft can be efficiently absorbed.

以下、この発明の構成につき添付の図面を参照しながら詳細に説明する。   Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

図１はこの発明の実施形態による落橋防止装置を橋台側に設置した状態の一例を示す断面図で、図２は図１の要部を拡大して示す断面図である。   FIG. 1 is a cross-sectional view showing an example of a state in which a falling bridge prevention device according to an embodiment of the present invention is installed on the abutment side, and FIG.

図１において、橋桁１と橋台２とはシャフト３で連結され、シャフト３の一方の端部（図では橋台２側）３ａが橋台２から摺動自在に突出している。一方、シャフト３の他方の端部３ｂは橋桁１に固定されている。シャフト３の突出部分の外周にはダンパー５が一体化され、ダンパー５の外周には鋼材からなる外筒６が固定され、 この外筒６が橋台２に固定されている。   In FIG. 1, the bridge girder 1 and the abutment 2 are connected by a shaft 3, and one end portion (the abutment 2 side in the figure) 3 a of the shaft 3 protrudes slidably from the abutment 2. On the other hand, the other end 3 b of the shaft 3 is fixed to the bridge girder 1. A damper 5 is integrated with the outer periphery of the protruding portion of the shaft 3, and an outer cylinder 6 made of steel is fixed to the outer periphery of the damper 5, and the outer cylinder 6 is fixed to the abutment 2.

ダンパー５は、図２に示すように、最外層を鋼板５ａとして高減衰ゴム５ｂと鋼板５ａとが交互に積層する積層体で構成され、シャフト３の外周面に接着又は機械的手段による接合により一体化されている。さらに、ダンパー５の最外層の鋼板５ａと外筒６とは溶接又は他の手段により一体化されている。ここで、ダンパー５を構成する高減衰ゴム５ｂと鋼板５ａとの積層数は、橋桁１や橋台２の規模により設定するとよい。   As shown in FIG. 2, the damper 5 is composed of a laminated body in which the outermost layer is a steel plate 5a and the high damping rubber 5b and the steel plate 5a are alternately laminated, and is bonded to the outer peripheral surface of the shaft 3 by bonding or mechanical means. It is integrated. Further, the outermost steel plate 5a of the damper 5 and the outer cylinder 6 are integrated by welding or other means. Here, the number of layers of the high damping rubber 5b and the steel plate 5a constituting the damper 5 may be set according to the scale of the bridge girder 1 or the abutment 2.

これにより、地震などにより大きな衝撃力（水平方向）が入力されるとダンパー５における高減衰ゴム５ｂが衝撃エネルギ−を減衰させながら吸収すると共に、ダンパー５のエネルギ−吸収能力が限界に達した後は、シャフト３自体が衝撃力を吸収して落橋をくい止めることができる。したがって、極く簡単な装置でありながら、シャフト３に加わる衝撃力を効率よく吸収することができる。   Thus, when a large impact force (horizontal direction) is input due to an earthquake or the like, the high damping rubber 5b in the damper 5 absorbs the impact energy while attenuating, and after the energy absorption capacity of the damper 5 reaches the limit. The shaft 3 itself can absorb the impact force and stop the falling bridge. Therefore, the impact force applied to the shaft 3 can be efficiently absorbed while being a very simple device.

この発明において、外筒６は、図２に示すように、ダンパー５の軸方向への変形を可能にするために、その長さをダンパー５の軸方向の長さより大きくなるように形成し、ダンパー５の両側に空間Ｒ、Ｒを形成している。また、外筒６はフランジ部６ａを有し、このフランジ部６ａにおいてボルトにより橋台２に固定されている。シャフト３の橋台２側の端部３ａには金属沓７ａがナット４ａにより取り付けられており、シャフト３の端部３ａ側が保護キャップ８により覆われている。また、シャフト３の橋桁１側の端部３ｂは金属沓７ｂを介してナット４ｂにより橋桁１に固定されている。   In the present invention, as shown in FIG. 2, the outer cylinder 6 is formed such that its length is larger than the axial length of the damper 5 in order to allow deformation of the damper 5 in the axial direction. Spaces R and R are formed on both sides of the damper 5. Moreover, the outer cylinder 6 has the flange part 6a, and is fixed to the abutment 2 with the volt | bolt in this flange part 6a. A metal rod 7 a is attached to the end 3 a of the shaft 3 on the abutment 2 side by a nut 4 a, and the end 3 a side of the shaft 3 is covered with a protective cap 8. The end 3b of the shaft 3 on the bridge girder 1 side is fixed to the bridge girder 1 by a nut 4b through a metal rod 7b.

なお、図１及び図２の実施形態では、シャフト３の端部３ａを橋台２側に突出させた場合を例示したが、シャフト３の端部を橋桁１側に突出させてもよい。さらに、シャフト３の両端部をそれぞれ橋台２側と橋桁１側との両側に突出させるようにしてもよい。また、上述する実施形態では、ダンパー５の最外層を鋼板５ａとした場合を例示したが、ダンパー５の最外層は高減衰ゴム５ｂであってもよい。   1 and 2 exemplifies the case where the end 3a of the shaft 3 protrudes toward the abutment 2 side, the end of the shaft 3 may protrude toward the bridge girder 1 side. Furthermore, you may make it project the both ends of the shaft 3 to the both sides of the abutment 2 side and the bridge beam 1 side, respectively. Moreover, although the case where the outermost layer of the damper 5 was the steel plate 5a was illustrated in the above-described embodiment, the outermost layer of the damper 5 may be a high damping rubber 5b.

図３はこの発明の他の実施形態による落橋防止装置の側面図で、橋桁１と橋桁１とを橋脚９上で連結する場合を示している。図ではシャフト３の両端部をそれぞれ橋桁１、１の両側に突出させており、橋桁１、１の側壁に取り付けられたＬ字鋼１０、１０にシャフト３が外筒６、６を介して取り付けられている。この場合にあっても、シャフト３のいずれか一方の端部は、橋桁１から突出させずに直接橋桁１に固定するようにしてもよい。   FIG. 3 is a side view of a falling bridge prevention device according to another embodiment of the present invention, and shows a case where the bridge girder 1 and the bridge girder 1 are connected on the pier 9. In the figure, both ends of the shaft 3 are protruded on both sides of the bridge girders 1 and 1, and the shaft 3 is attached to the L-shaped steels 10 and 10 attached to the side walls of the bridge girders 1 and 1 via the outer cylinders 6 and 6. It has been. Even in this case, any one end of the shaft 3 may be directly fixed to the bridge beam 1 without protruding from the bridge beam 1.

この発明において、ダンパー５を構成する高減衰ゴム５ｂとしては、天然ゴム、クロロプレンゴム、スチレンブタジエンゴム、エチレンプロピレンゴム、シリコーンゴムから選ばれた少なくとも一種の材料を使用するとよい。これにより、シャフト３に加わる衝撃エネルギ−を効率よく減衰させ、優れた衝撃吸収力を発揮させることができる。   In the present invention, as the high-damping rubber 5b constituting the damper 5, at least one material selected from natural rubber, chloroprene rubber, styrene butadiene rubber, ethylene propylene rubber, and silicone rubber may be used. Thereby, the impact energy applied to the shaft 3 can be attenuated efficiently, and an excellent impact absorbing power can be exhibited.

さらに、上述する高減衰ゴム５ｂの１７５％せん断変形時の等価減衰定数を０．０５以上、１．００以下に設定するとよい。ここで、等価減衰定数とは、高減衰ゴム５ｂの非線形復元力特性を、等価な線形復元力と減衰に置き換えたときの減衰定数をいう。このように等価減衰定数を設定することにより、衝撃エネルギ−を一層効率よく減衰させながら吸収することができる。なお、上述する等価減衰定数は、出願人の開示に係る特開２００２−２０５４６号公報に記載のせん断特性値（Ｈｅｑ）と同様にして求めることができる。   Furthermore, the equivalent damping constant at the time of 175% shear deformation of the high damping rubber 5b described above may be set to 0.05 or more and 1.00 or less. Here, the equivalent damping constant is a damping constant when the nonlinear restoring force characteristic of the high damping rubber 5b is replaced with an equivalent linear restoring force and damping. By setting the equivalent attenuation constant in this way, the impact energy can be absorbed while being attenuated more efficiently. The equivalent attenuation constant described above can be obtained in the same manner as the shear characteristic value (Heq) described in Japanese Patent Application Laid-Open No. 2002-20546 according to the applicant's disclosure.

上述するように、この発明の落橋防止装置は、橋桁と橋台と又は橋桁と橋桁とを連結するシャフトの少なくとも一方の側の端部を橋桁又は橋台から摺動自在に突出させ、この突出部の外周に高減衰ゴムと鋼板とが交互に積層するダンパーを一体化させ、このダンパーを外筒を介して橋桁又は橋台に固定することにより、入力された衝撃力をダンパーにより減衰させながら吸収させて落橋をくい止めるようにしたもので、極く簡単な装置でありながら、連結シャフトに加わる衝撃力を効率よく吸収して落橋を防止することができる。   As described above, the falling bridge prevention device of the present invention projects the end of at least one side of the shaft connecting the bridge girder and the abutment or the bridge girder and the bridge girder so as to be slidable from the bridge girder or the abutment. By integrating a damper with high damping rubber and steel plates alternately laminated on the outer periphery and fixing this damper to a bridge girder or abutment via an outer cylinder, the input impact force is absorbed while being attenuated by the damper. Although it is designed to stop the falling bridge, it is an extremely simple device, and can efficiently absorb the impact force applied to the connecting shaft and prevent the falling bridge.

この発明の実施形態による落橋防止装置を橋台側に設置した状態の一例を示す断面図である。It is sectional drawing which shows an example of the state which installed the fallen bridge prevention apparatus by embodiment of this invention in the abutment side. 図１の要部を拡大して示す断面図である。It is sectional drawing which expands and shows the principal part of FIG. この発明の実施形態による落橋防止装置を橋脚上に設置した状態の一例を示す断面図である。It is sectional drawing which shows an example of the state which installed the fallen bridge prevention apparatus by embodiment of this invention on the pier.

符号の説明Explanation of symbols

１ 橋桁
２ 橋台
３ シャフト
４ａ、４ｂ ナット
５ ダンパ−
５ａ 鋼板
５ｂ 高減衰ゴム
６ 外筒
７ａ、７ｂ 金属沓
８ 保護キャップ
９ 橋脚
１０ Ｌ字鋼
1 Bridge Girder 2 Abutment 3 Shaft 4a, 4b Nut 5 Damper
5a Steel plate 5b High damping rubber 6 Outer cylinder 7a, 7b Metal rod 8 Protection cap 9 Bridge pier 10 L-shaped steel

Claims (4)

橋桁と橋台と又は橋桁と橋桁とをシャフトで連結し，橋桁が橋台又は橋脚から落下するのを防止する落橋防止装置において、
前記シャフトの少なくとも一方の端部を橋桁又は橋台から摺動自在に突出させ、この突出した部分の外周に高減衰ゴムと鋼板とが交互に積層するダンパーを一体化させると共に、該ダンパーの外周に鋼材からなる外筒を固定し、 該外筒を橋桁又は橋台に固定するようにした落橋防止装置。 In the bridge prevention device that connects the bridge girder and abutment or the bridge girder and the bridge girder with a shaft and prevents the bridge girder from falling from the abutment or pier,
At least one end of the shaft is slidably protruded from a bridge girder or an abutment, and a damper in which high-attenuation rubber and a steel plate are alternately laminated is integrated on the outer periphery of the protruding portion, and on the outer periphery of the damper. A falling bridge prevention device in which an outer cylinder made of steel is fixed, and the outer cylinder is fixed to a bridge girder or an abutment. 前記シャフトの一方の端部を橋桁又は橋台から摺動自在に突出させ、他方の端部を橋桁又は橋台に固定するようにした請求項１に記載の落橋防止装置。   The falling bridge prevention device according to claim 1, wherein one end portion of the shaft is slidably protruded from the bridge girder or the abutment, and the other end portion is fixed to the bridge girder or the abutment. 前記高減衰ゴムが天然ゴム、クロロプレンゴム、スチレンブタジエンゴム、エチレンプロピレンゴム、シリコーンゴムから選ばれた少なくとも一種の材料からなる請求項１又は２に記載の落橋防止装置。   The fallen bridge prevention device according to claim 1 or 2, wherein the high damping rubber is made of at least one material selected from natural rubber, chloroprene rubber, styrene butadiene rubber, ethylene propylene rubber, and silicone rubber. 前記高減衰ゴムの１７５％せん断変形時の等価減衰定数が０．０５以上である請求項１、２又は３に記載の落橋防止装置。
The fallen bridge prevention device according to claim 1, wherein the high damping rubber has an equivalent damping constant at 175% shear deformation of 0.05 or more.
JP2005041827A 2005-02-18 2005-02-18 Bridge fall prevention device Pending JP2006226009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005041827A JP2006226009A (en) 2005-02-18 2005-02-18 Bridge fall prevention device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005041827A JP2006226009A (en) 2005-02-18 2005-02-18 Bridge fall prevention device

Publications (1)

Publication Number Publication Date
JP2006226009A true JP2006226009A (en) 2006-08-31

Family

ID=36987608

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005041827A Pending JP2006226009A (en) 2005-02-18 2005-02-18 Bridge fall prevention device

Country Status (1)

Country Link
JP (1) JP2006226009A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011247046A (en) * 2010-05-31 2011-12-08 Railway Technical Research Institute Bridge provided with means for absorbing bridge abutment deformation
JP2014031670A (en) * 2012-08-06 2014-02-20 Ihi Infrastructure Systems Co Ltd Damper fitting device
JP2014105556A (en) * 2012-11-29 2014-06-09 Nippon Sharyo Seizo Kaisha Ltd Bridge vibration control device
CN107190632A (en) * 2017-07-14 2017-09-22 芜湖威灵数码科技有限公司 A kind of highway bridge girder falling stopping means
CN109914228A (en) * 2019-03-29 2019-06-21 株洲时代新材料科技股份有限公司 A kind of damping device
CN112900237A (en) * 2021-01-15 2021-06-04 招商局重庆交通科研设计院有限公司 Slippage limiting energy-consumption type anti-falling beam structure and construction method thereof
CN113136790A (en) * 2021-05-06 2021-07-20 中国地震局工程力学研究所 Three-section type box girder anti-falling device

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0325034U (en) * 1989-07-20 1991-03-14
JPH06257638A (en) * 1994-02-04 1994-09-16 Komatsu Ltd Liquid-sealed rubber mount
JPH09165719A (en) * 1995-10-14 1997-06-24 Tokyo Fabric Kogyo Kk Connecting bridge fall preventive device
JPH10195821A (en) * 1997-01-14 1998-07-28 Kawaguchi Kinzoku Kogyo Kk Bridge falling prevention device
JP2001055710A (en) * 1999-08-19 2001-02-27 Tokyo Fabric Kogyo Kk Connection type device for preventing bridge from falling
JP2001064914A (en) * 1999-08-26 2001-03-13 Hanshin Expressway Public Corp Displacement restriction device-cum-bridge fall prevention device
JP2001304338A (en) * 2000-04-19 2001-10-31 Bridgestone Corp Runner damper
JP2002020546A (en) * 2000-07-04 2002-01-23 Yokohama Rubber Co Ltd:The High damping rubber composition for bearing
JP2002021021A (en) * 2000-07-03 2002-01-23 Tokyo Fabric Kogyo Kk Connecting bridge fall prevention device
JP2004107909A (en) * 2002-09-13 2004-04-08 Tokyo Fabric Kogyo Kk Connection type bridge-fall preventive device
JP2004322867A (en) * 2003-04-25 2004-11-18 Bridgestone Corp Axle box supporting rubber

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0325034U (en) * 1989-07-20 1991-03-14
JPH06257638A (en) * 1994-02-04 1994-09-16 Komatsu Ltd Liquid-sealed rubber mount
JPH09165719A (en) * 1995-10-14 1997-06-24 Tokyo Fabric Kogyo Kk Connecting bridge fall preventive device
JPH10195821A (en) * 1997-01-14 1998-07-28 Kawaguchi Kinzoku Kogyo Kk Bridge falling prevention device
JP2001055710A (en) * 1999-08-19 2001-02-27 Tokyo Fabric Kogyo Kk Connection type device for preventing bridge from falling
JP2001064914A (en) * 1999-08-26 2001-03-13 Hanshin Expressway Public Corp Displacement restriction device-cum-bridge fall prevention device
JP2001304338A (en) * 2000-04-19 2001-10-31 Bridgestone Corp Runner damper
JP2002021021A (en) * 2000-07-03 2002-01-23 Tokyo Fabric Kogyo Kk Connecting bridge fall prevention device
JP2002020546A (en) * 2000-07-04 2002-01-23 Yokohama Rubber Co Ltd:The High damping rubber composition for bearing
JP2004107909A (en) * 2002-09-13 2004-04-08 Tokyo Fabric Kogyo Kk Connection type bridge-fall preventive device
JP2004322867A (en) * 2003-04-25 2004-11-18 Bridgestone Corp Axle box supporting rubber

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011247046A (en) * 2010-05-31 2011-12-08 Railway Technical Research Institute Bridge provided with means for absorbing bridge abutment deformation
JP2014031670A (en) * 2012-08-06 2014-02-20 Ihi Infrastructure Systems Co Ltd Damper fitting device
JP2014105556A (en) * 2012-11-29 2014-06-09 Nippon Sharyo Seizo Kaisha Ltd Bridge vibration control device
CN107190632A (en) * 2017-07-14 2017-09-22 芜湖威灵数码科技有限公司 A kind of highway bridge girder falling stopping means
CN109914228A (en) * 2019-03-29 2019-06-21 株洲时代新材料科技股份有限公司 A kind of damping device
CN112900237A (en) * 2021-01-15 2021-06-04 招商局重庆交通科研设计院有限公司 Slippage limiting energy-consumption type anti-falling beam structure and construction method thereof
CN112900237B (en) * 2021-01-15 2022-01-04 招商局重庆交通科研设计院有限公司 Slippage limiting energy-consumption type anti-falling beam structure and construction method thereof
CN113136790A (en) * 2021-05-06 2021-07-20 中国地震局工程力学研究所 Three-section type box girder anti-falling device

Similar Documents

Publication Publication Date Title
JP2006226009A (en) Bridge fall prevention device
EP1948878B1 (en) Structure with increased damping by means of fork configuration dampers
JP2011042974A (en) Vibration control device and structure having the same and aseismatic device and structure having the same
JP2011012778A (en) Piping support device
JP2016217425A (en) Seismic isolator and method
JP4737056B2 (en) Damper device, damper device design method, damping structure, damping method
JP2006241934A (en) Damper device
JP5886721B2 (en) Damping damper for structures
JP2002089077A (en) Viscoelastic brace serially connected with spring
KR102078985B1 (en) Damper for seismic retrofit
JP4468212B2 (en) Fall bridge prevention device
JP2009228851A (en) Lamination layer rubber for seismic isolation
JP2002357013A (en) Composite vibration-control brace
JP5199687B2 (en) Damping device, damping structure, and damping panel
KR20100105470A (en) Energy-dissipating element and shock absorber comprising an energy-dissipating element
JP2019031827A (en) Function separation type shock absorber and bridge provided with function separation type shock absorber
JP5274851B2 (en) Friction damper and hybrid damper
JP6358838B2 (en) Damping damper for structures
JP4581832B2 (en) Composite viscoelastic damper
JP2002070943A (en) Slip support device for base isolation
JP2006283409A (en) Vibration control structure
CN106835952B (en) A kind of combined anti-seismic system and combined anti-seismic bridge
US9617730B1 (en) Adaptive bearing energy absorber
JP2001106455A (en) Elevator guide rail supporting device
JP2010255850A (en) Damper device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080201

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20091001

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20091013

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20091211

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20100112