JPH04119808U - Bridge girder vibration damping device - Google Patents
Bridge girder vibration damping deviceInfo
- Publication number
- JPH04119808U JPH04119808U JP3329491U JP3329491U JPH04119808U JP H04119808 U JPH04119808 U JP H04119808U JP 3329491 U JP3329491 U JP 3329491U JP 3329491 U JP3329491 U JP 3329491U JP H04119808 U JPH04119808 U JP H04119808U
- Authority
- JP
- Japan
- Prior art keywords
- recess
- bridge
- bridge girder
- buffer
- support member
- 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
- 238000013016 damping Methods 0.000 title claims abstract description 11
- 238000002955 isolation Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 abstract description 8
- 239000004809 Teflon Substances 0.000 abstract description 2
- 229920006362 Teflon® Polymers 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 241000282994 Cervidae Species 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
(57)【要約】
【目的】 橋軸方向移動が円滑に行えるとともに、外観
的にも優れた橋桁の制振装置を提供すること
【構成】 橋桁３の幅方向の中心には、切欠した凹部１
０が形成され、凹部１０の内面には、金属板１２が貼着
されている。桁受け部２には、この凹部１０に対応して
支持部材１４が突設されている。この支持部材１４の先
端側は、凹部１０内に位置しており、その両側面には、
一対の緩衝ストッパ１６が取付けられている。緩衝スト
ッパ１６は、支持部材１４側に固定された取付板１８
と、凹部１０の内面に貼着された金属板１２に摺接する
テフロン樹脂製などからなる摺動板２０と、取付板１８
と摺動板２０との間に挟持された緩衝部材２２とから構
成されている。緩衝部材２２は、薄いゴム板２２ａと金
属板２２ｂとを相互に接着して交互に積層したものであ
る。
(57) [Summary] [Purpose] To provide a vibration damping device for a bridge girder that allows smooth movement in the axial direction of the bridge and has an excellent appearance. [Structure] The widthwise center of the bridge girder 3 has a notched recess. 1
0 is formed, and a metal plate 12 is adhered to the inner surface of the recess 10. A support member 14 is provided in the girder receiving portion 2 in a manner corresponding to the recess 10 in a protruding manner. The distal end side of this support member 14 is located within the recess 10, and on both sides thereof,
A pair of buffer stoppers 16 are attached. The buffer stopper 16 is attached to a mounting plate 18 fixed to the support member 14 side.
, a sliding plate 20 made of Teflon resin or the like that slides into contact with the metal plate 12 affixed to the inner surface of the recess 10 , and a mounting plate 18 .
and a buffer member 22 held between the sliding plate 20 and the sliding plate 20. The buffer member 22 is made up of thin rubber plates 22a and metal plates 22b that are adhered to each other and laminated alternately.
Description
【０００１】0001
この考案は、橋桁の制振装置に関し、特に、橋桁の軸に直交する方向の移動を 規制する装置の改良に関する。 This invention relates to vibration damping devices for bridge girders, and is particularly applicable to vibration damping devices for bridge girders. Concerning improvements in regulating devices.
【０００２】0002
近年、地盤から橋台，橋脚を介して橋桁に伝わる地震力、すなわち、横ゆれを 減少させる目的で、橋脚と橋桁の間に、積層ゴム形式で代表される免震装置を設 置することが提案されている。ところで、この種の免震装置を介装した構造の橋 では、橋軸に直交する方向の移動を規制するためにストッパを設けている。 In recent years, the seismic force transmitted from the ground to the bridge girder via the abutments and piers, that is, the lateral shaking, has been In order to reduce the It is proposed that the By the way, a bridge with a structure equipped with this type of seismic isolation device In this case, a stopper is provided to restrict movement in a direction perpendicular to the bridge axis.
【０００３】 図３は、従来のストッパ構造の２つの例を示している。同図（Ａ）の例では、 橋脚１上に設けられた桁受け部２と、橋桁３との間に複数の積層ゴム形式の免震 装置４が介装されている。桁受け部２の幅方向の両端には、一対のストッパ５が 桁受け部２と一体に突設されていて、橋桁３と各ストッパ５とが対向する部分に スライド板６が対面して固設されている。この構造では、スライド板６同士が当 接した状態で、ストッパ５により、橋軸に直交する方向の移動が規制される。0003 FIG. 3 shows two examples of conventional stopper structures. In the example in figure (A), A plurality of laminated rubber type seismic isolation devices are installed between the girder receiving part 2 provided on the pier 1 and the bridge girder 3. A device 4 is interposed. A pair of stoppers 5 are provided at both ends of the girder receiving portion 2 in the width direction. It protrudes integrally with the girder receiving part 2, and is provided at the part where the bridge girder 3 and each stopper 5 face each other. Slide plates 6 are fixedly arranged facing each other. In this structure, the slide plates 6 touch each other. In the state of contact, the stopper 5 restricts movement in the direction perpendicular to the bridge axis.
【０００４】 また、図３（Ｂ）に示す例では、各免震装置４の外周にそれぞれストッパ７が 設けられている。同図に示す例では、ストッパ７の先端が免震装置４の橋桁３側 の取付板に当接することにより、橋軸に直交する方向の移動が規制される。しか しながら、このような従来のストッパ構造には、以下に説明する技術的課題があ った。0004 In addition, in the example shown in FIG. 3(B), a stopper 7 is provided on the outer periphery of each seismic isolation device 4. It is provided. In the example shown in the figure, the tip of the stopper 7 is on the bridge girder 3 side of the seismic isolation device 4. By coming into contact with the mounting plate, movement in the direction perpendicular to the bridge axis is restricted. deer However, such conventional stopper structures have the following technical problems. It was.
【０００５】[0005]
すなわち、図３に示したストッパ構造では、地震力などが作用した場合に、そ のままの状態で平行移動することは殆どなく、斜め方向に荷重が作用して、スラ イド板６同士やストッパ７と取付板とが競り合うことになり、いずれも橋桁３の 軸方向移動への障害となるという問題がある。また、外観的にも見苦しいものと なる。 In other words, with the stopper structure shown in Figure 3, when seismic force etc. There is almost no parallel movement in the same state, and the load acts in the diagonal direction, causing the slide to slide. The ID plates 6 and the stopper 7 and the mounting plate compete with each other, and both of them compete with each other on the bridge girder 3. There is a problem in that it becomes an obstacle to axial movement. Also, it is unsightly in appearance. Become.
【０００６】 この考案は以上の問題を解決するものであって、その目的とするところは、橋 桁の軸方向移動が円滑に行えるとともに、外観的にも優れた橋桁の制振装置を提 供するところにある。[0006] This idea is intended to solve the above problems, and its purpose is to We propose a vibration damping device for bridge girders that allows smooth axial movement of girders and has an excellent appearance. It's there to serve.
【０００７】[0007]
前記目的を達成するため、この考案は、橋脚と橋桁との間に免震装置を設けた 橋において、前記橋桁の軸方向の中心に設けた凹部と、この凹部に対応して前記 橋脚に突設された支持部材と、この支持部材の側面に一端が固設され、他端が前 記凹部の内側面に摺接する一対の緩衝ストッパとを有することを特徴とする。 In order to achieve the above purpose, this invention provides a seismic isolation device between the bridge piers and the bridge girders. In the bridge, there is a recess provided at the axial center of the bridge girder, and the recess corresponding to the recess. A support member protrudes from the pier, one end of which is fixed to the side, and the other end fixed to the front. It is characterized by having a pair of buffer stoppers that come into sliding contact with the inner surface of the recess.
【０００８】 前記緩衝ストッパは、前記支持部材に固定される取付板と、前記凹部の内面に 摺接する摺動板と、前記取付板と摺動板との間に挟持された積層ゴム式の緩衝部 材とで構成することができる。[0008] The buffer stopper includes a mounting plate fixed to the support member and an inner surface of the recess. a sliding plate that comes into sliding contact; and a laminated rubber shock absorber sandwiched between the mounting plate and the sliding plate. It can be composed of materials.
【０００９】[0009]
以上の構成によれば、緩衝ストッパの一端が橋桁の中心に設けられた凹部の側 面に摺接しているので、橋軸方向への移動が円滑に行える。また、緩衝ストッパ の支持部材は、橋桁の幅方向の移動に対して、左右いずれの方向に移動した場合 にも、荷重を支持することになるので、図３に示したストッパの半分の断面積が あれば良い。さらに、緩衝ストッパなどは、橋桁の中心に設けられているので、 橋の外観を損なうことがない。 According to the above configuration, one end of the buffer stopper is placed on the side of the recess provided in the center of the bridge girder. Since it is in sliding contact with the surface, it can be moved smoothly in the direction of the bridge axis. Also, a buffer stopper If the supporting members move in either the left or right direction relative to the widthwise movement of the bridge girder, The cross-sectional area of half of the stopper shown in Figure 3 is It's good to have. Furthermore, since buffer stoppers etc. are provided at the center of the bridge girder, The appearance of the bridge will not be damaged.
【００１０】0010
以下、この考案の一実施例を添付図面に基づいて詳細に説明する。なお、以下 の説明では、上述した従来例と同一または相当する部分に同符号を付し、詳細な 説明は省略する。図１および図２は、この考案にかかる橋桁の制振装置の一実施 例を示している。同図に示す橋は、桁受け部２の上面と橋桁３の下面との間に積 層ゴム形式の複数の免震装置４が設置されていて、この免震装置４で橋桁３の荷 重を支持している。 Hereinafter, one embodiment of this invention will be described in detail based on the accompanying drawings. In addition, below In the explanation, the same reference numerals are given to the same or corresponding parts as in the conventional example described above, and detailed explanations are given. Explanation will be omitted. Figures 1 and 2 show an implementation of the bridge girder vibration damping device according to this invention. An example is shown. In the bridge shown in the same figure, there is a A plurality of seismic isolation devices 4 in the form of layered rubber are installed, and these seismic isolation devices 4 absorb the load on the bridge girder 3. supports heavy weight.
【００１１】 橋桁３の幅方向の中心には、切欠した凹部１０が形成され、凹部１０の内面に は、ステンレスなどの金属板１２が貼着されている。桁受け部２には、この凹部 １０に対応して下端が桁受け部２中に埋設された支持部材１４が突設されている 。この支持部材１４の先端側は、凹部１０内に位置しており、その両側面には、 一対の緩衝ストッパ１６が取付けられている。[0011] A cutout recess 10 is formed at the center of the bridge girder 3 in the width direction, and the inner surface of the recess 10 is A metal plate 12 made of stainless steel or the like is attached. This recess is provided in the girder receiving part 2. A support member 14 whose lower end is embedded in the girder receiving part 2 is provided in a protruding manner corresponding to the support member 10. . The distal end side of this support member 14 is located within the recess 10, and on both sides thereof, A pair of buffer stoppers 16 are attached.
【００１２】 緩衝ストッパ１６の詳細を図２に示している。同図に示す緩衝ストッパ１６は 、支持部材１４側に固定された取付板１８と、凹部１０の内面に貼着された金属 板１２に摺接するテフロン樹脂製などからなる摺動板２０と、取付板１８と摺動 板２０との間に挟持された緩衝部材２２とから構成されている。0012 Details of the buffer stopper 16 are shown in FIG. The buffer stopper 16 shown in the figure is , a mounting plate 18 fixed to the support member 14 side, and a metal stuck to the inner surface of the recess 10. A sliding plate 20 made of Teflon resin or the like that slides on the plate 12 and slides on the mounting plate 18. The buffer member 22 is sandwiched between a plate 20 and a buffer member 22.
【００１３】 緩衝部材２２は、薄いゴム板２２ａと金属板２２ｂとを相互に接着して交互に 積層したものであり、積層ゴム形式の免震装置４と基本的な構成は同じものであ る。以上のように構成された制振装置では、橋軸と直交する方向に移動する際に は、緩衝部材２２の弾性限界までは、ゴム板２２ａが弾性変形して、その移動を 許容するが、緩衝部材２２の弾性限界を越えると橋桁３の移動は、支持部材１４ により規制される。[0013] The buffer member 22 is made of thin rubber plates 22a and metal plates 22b that are glued together and alternately arranged. It is a laminated device, and the basic configuration is the same as the laminated rubber type seismic isolation device 4. Ru. In the vibration damping device configured as described above, when moving in a direction perpendicular to the bridge axis, Until the elastic limit of the buffer member 22 is reached, the rubber plate 22a is elastically deformed and its movement is prevented. However, if the elastic limit of the buffer member 22 is exceeded, the movement of the bridge girder 3 will be limited to the support member 14. regulated by.
【００１４】 この時、本考案の支持部材１４は、橋桁３の幅方向の移動に対して、左右いず れの方向に移動した場合にも、荷重を支持することになるので、図３に示したス トッパ５の半分の断面積があれば良い。つまり、図３のストッパ５では、橋桁３ の両側に設けられているので、橋桁３が移動したときには、いずれか一方のスト ッパ５で荷重を支持するので、ストッパ５は、両方とも橋桁３の荷重に見合った 断面積が必要になるが、本考案の支持部材１４では、一方のストッパ５と同じ断 面積があれば良い。[0014] At this time, the supporting member 14 of the present invention is supported on both the left and right sides with respect to the movement of the bridge girder 3 in the width direction. Even if it moves in that direction, it will support the load, so the space shown in Figure 3 will support the load. It is sufficient if the cross-sectional area is half that of the topper 5. In other words, with the stopper 5 in FIG. 3, the bridge girder 3 Since the bridge girder 3 is provided on both sides, when the bridge girder 3 moves, one of the Since the load is supported by the stopper 5, both stoppers 5 are suitable for the load of the bridge girder 3. Although a cross-sectional area is required, the supporting member 14 of the present invention has the same cross-sectional area as one stopper 5. It's good if you have the area.
【００１５】 一方、橋桁３の軸方向への移動は、緩衝ストッパ１６の摺動板２２が橋桁３の 中心に設けられた凹部１０の金属板１２に摺接しているので、移動が円滑に行え る。また、緩衝ストッパ１６などは、橋桁３の中心に設けられているので、橋の 外観を損なうことがない。[0015] On the other hand, the sliding plate 22 of the buffer stopper 16 moves the bridge girder 3 in the axial direction. Since it is in sliding contact with the metal plate 12 in the recess 10 provided in the center, it can be moved smoothly. Ru. In addition, since the buffer stopper 16 and the like are provided at the center of the bridge girder 3, Does not damage appearance.
【図面の簡単な説明】[Brief explanation of drawings]
【図１】この考案にかかる橋桁の制振装置の一実施例を
示す側面図である。FIG. 1 is a side view showing an embodiment of a vibration damping device for a bridge girder according to the present invention.
【図２】図１の要部拡大図である。FIG. 2 is an enlarged view of the main part of FIG. 1;
【図３】従来の橋桁の制振装置の側面図である。FIG. 3 is a side view of a conventional bridge girder vibration damping device.
１ 橋脚 ２ 桁受け部 ３ 橋桁 ４ 免震装置 １０ 凹部 １２ 金属板 １４ 支持部材 １６ 緩衝ストッパ 1 Pier 2 digit receiving part 3 Bridge girders 4 Seismic isolation device 10 Recess 12 Metal plate 14 Support member 16 Buffer stopper
Claims (2)
において、前記橋桁の幅方向の中心に設けた凹部と、こ
の凹部に対応して前記橋脚に突設された支持部材と、こ
の支持部材の側面に一端が固設され、他端が前記凹部の
内側面に摺接する一対の緩衝ストッパとを有することを
特徴とする橋桁の制振装置。Claim 1: A bridge provided with a seismic isolation device between a bridge pier and a bridge girder, comprising: a recess provided at the center of the bridge girder in the width direction; and a support member protruding from the bridge pier corresponding to the recess. A vibration damping device for a bridge girder, comprising a pair of buffer stoppers, one end of which is fixed to a side surface of the support member, and the other end of which slides into contact with the inner surface of the recess.
定される取付板と、前記凹部の内面に摺接する摺動板
と、前記取付板と摺動板との間に挟持された積層ゴム式
の緩衝部材とを有することを特徴とする橋桁の制振装
置。2. The buffer stopper includes a mounting plate fixed to the supporting member, a sliding plate slidingly contacting the inner surface of the recess, and a laminated rubber type sandwiched between the mounting plate and the sliding plate. A vibration damping device for a bridge girder, comprising a buffer member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991033294U JP2546071Y2 (en) | 1991-04-15 | 1991-04-15 | Bridge girder damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991033294U JP2546071Y2 (en) | 1991-04-15 | 1991-04-15 | Bridge girder damping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04119808U true JPH04119808U (en) | 1992-10-27 |
| JP2546071Y2 JP2546071Y2 (en) | 1997-08-27 |
Family
ID=31915998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991033294U Expired - Lifetime JP2546071Y2 (en) | 1991-04-15 | 1991-04-15 | Bridge girder damping device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2546071Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10132025A (en) * | 1996-10-25 | 1998-05-22 | Railway Technical Res Inst | Shock eliminating body and shock eliminating structure using the same |
| KR100339095B1 (en) * | 1999-06-09 | 2002-05-31 | 국천표,오의진 | Guard bearing for preventing removement of slab and constructing method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5914488U (en) * | 1982-07-20 | 1984-01-28 | パイオニア株式会社 | Planar diaphragm speaker |
| JPS6152093A (en) * | 1984-08-21 | 1986-03-14 | Sony Corp | Color detecting circuit |
-
1991
- 1991-04-15 JP JP1991033294U patent/JP2546071Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5914488U (en) * | 1982-07-20 | 1984-01-28 | パイオニア株式会社 | Planar diaphragm speaker |
| JPS6152093A (en) * | 1984-08-21 | 1986-03-14 | Sony Corp | Color detecting circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10132025A (en) * | 1996-10-25 | 1998-05-22 | Railway Technical Res Inst | Shock eliminating body and shock eliminating structure using the same |
| KR100339095B1 (en) * | 1999-06-09 | 2002-05-31 | 국천표,오의진 | Guard bearing for preventing removement of slab and constructing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2546071Y2 (en) | 1997-08-27 |
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