JP2777919B2 - Bridge girder support method - Google Patents
Bridge girder support methodInfo
- Publication number
- JP2777919B2 JP2777919B2 JP27921089A JP27921089A JP2777919B2 JP 2777919 B2 JP2777919 B2 JP 2777919B2 JP 27921089 A JP27921089 A JP 27921089A JP 27921089 A JP27921089 A JP 27921089A JP 2777919 B2 JP2777919 B2 JP 2777919B2
- Authority
- JP
- Japan
- Prior art keywords
- bridge girder
- seat
- curved surface
- supporting
- foundation
- 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.)
- Expired - Lifetime
Links
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- Bridges Or Land Bridges (AREA)
Description
【発明の詳細な説明】 イ．発明の目的 〔産業上の利用分野〕 この発明は、橋梁・高架その他の橋桁よりなる上部構
造物を弾性支承体を与える支承方法に関する。DETAILED DESCRIPTION OF THE INVENTION BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supporting method for providing an elastic supporting body to a superstructure including a bridge, an overpass, and other bridge girders.
従来、橋桁を支承するための弾性支承体は橋桁架設時
に打設される床版等のコンクリート荷重やプレストレス
トコンクリート製橋桁のプレストレス力の導入により生
ずるたわみ量、橋桁に作用する地震荷重・風荷重並びに
車両の進行等により生ずるたわみ量、橋桁の温度変化・
コンクリートの乾燥収縮及びクリープ等により生ずる伸
縮量を見込んで設計される。また、曲線橋・斜橋等の橋
桁にあっては、上記たわみ量及び伸縮量に加えて縦断勾
配あるいは横断勾配を見込んで設計されるが、設計値に
対して、橋桁や橋脚・支承台座等の製作及び施工上の誤
差が大きいため、該誤差を見込んで弾性支承体の許容回
転角等を大きく設計している。Conventionally, elastic bearings for supporting bridge girders are concrete loads such as floor slabs that are cast when bridge girders are installed, the amount of deflection caused by the introduction of prestressing force of prestressed concrete bridge girders, and seismic loads and wind loads acting on bridge girders. And the amount of deflection caused by the movement of the vehicle, temperature changes in the bridge girder,
The design is made in consideration of the amount of expansion and contraction caused by concrete shrinkage and drying. In addition, bridge girders such as curved bridges and diagonal bridges are designed in consideration of the vertical gradient or traverse gradient in addition to the deflection and expansion and contraction described above. Since there is a large error in the manufacture and construction of the elastic bearing, the allowable rotation angle and the like of the elastic bearing are designed to be large in consideration of the error.
また、斜橋や曲線橋のように、橋桁に縦断勾配や横断
勾配がある場合は、第７図に示すように橋桁Ｇにレヤー
20をつけて、弾性支承体Ｓが水平に据え付けられるよう
に橋桁Ｇと弾性支承体Ｓの支圧面部を橋脚Ｂに対して平
行にしている。If the bridge girder has a vertical slope or crossing slope such as a diagonal bridge or a curved bridge, as shown in FIG.
At 20, the bearing surfaces of the bridge girder G and the elastic support S are parallel to the pier B so that the elastic support S can be installed horizontally.
しかしながら、弾性支承体の許容回転角を大きくする
ことは、とりもなおさず弾性支承体の厚さを厚くするこ
と、換言すれば弾性支承体が丈高となり、このため弾性
支承体の荷重支持能力が低下し、座屈を引き起こす要因
となる。However, increasing the allowable rotation angle of the elastic bearing means increasing the thickness of the elastic bearing, in other words, making the elastic bearing tall, and therefore the load bearing capacity of the elastic bearing. Is reduced, causing buckling.
また、橋桁の縦断勾配や横断勾配に対して弾性支承体
を水平に据え付けする作業は極めて繁雑で、平行度にも
狂いが生じ易く、施工効率上問題の大きいものである。Also, the work of horizontally mounting the elastic bearings on the longitudinal or transverse gradient of the bridge girder is extremely complicated, and the parallelism tends to be out of order, which is a serious problem in terms of construction efficiency.
本発明は上記実情に鑑み、上記従来技術の問題点を解
決すべくなされたものであり、弾性支承体の許容回転角
を大きくすることなく、橋桁や橋脚、支承台座等の製作
及び施工上の誤差を許容できる橋桁を支承する方法を提
供することを目的とする。The present invention has been made in view of the above-mentioned circumstances, and has been made to solve the problems of the above-described conventional technology. It is an object of the present invention to provide a method for supporting a bridge girder that can tolerate errors.
ロ．発明の構成 〔問題点を解決するための手段〕 本発明の第１の支承方法によれば、橋脚・橋台等の基
礎上に設置され、ゴムパッドを介装した弾性支承体によ
り橋桁を支承する方法において、前記基礎上に設置した
弾性支承体の上面には凸曲面部を備えたソールプレート
が載置され、前記橋桁の下面には前記弾性支承体と相対
向する位置に前記凸曲面部と摺接可能に凹曲面座が設け
られ、橋桁架設時の設計・製作・施工上の誤差に起因す
る橋桁の回転変位を前記凸曲面部と凹曲面座の摺動によ
り吸収する前工程と、橋桁の下面とソールプレートとを
固定する後工程とからなることを特徴とする。B. According to the first method of the present invention, a method for supporting a bridge girder by an elastic bearing body installed on a foundation such as a pier or an abutment and having a rubber pad interposed therebetween is provided. , A sole plate having a convex curved surface portion is placed on the upper surface of the elastic bearing member installed on the foundation, and the lower surface of the bridge girder slides with the convex curved surface portion at a position opposed to the elastic bearing member. A concave curved seat is provided so as to be in contact with the bridge girder, a pre-process for absorbing the rotational displacement of the bridge girder caused by an error in the design, manufacture, and construction of the bridge girder by sliding the convex curved surface portion and the concave curved seat, and It is characterized by comprising a post-process of fixing the lower surface and the sole plate.
また、本発明の第２の支承方法によれば、橋脚・橋台
等の基礎上に設置され、ゴムパッドを介装した弾性支承
体により橋桁を支承する方法において、前記基礎上面に
は凹曲面座が設けられ、前記弾性支承体の前記基礎上面
と相対向する位置に前記凹曲面座と摺接可能な凸曲面部
を備えたソールプレートが固定され、橋桁架設時の設計
・製作・施工上の誤差に起因する橋桁の回転変位を前記
凹曲面座と凸曲面部の摺動により吸収する前工程と、基
礎の上面とソールプレートとを固定する後工程とからな
ることを特徴とする。According to the second support method of the present invention, in the method of being installed on a foundation such as a pier or an abutment and supporting a bridge girder by an elastic support body with a rubber pad interposed, a concave curved seat is provided on the upper surface of the foundation. A sole plate having a convex curved surface portion which can be slidably contacted with the concave curved surface seat is fixed at a position opposed to the base upper surface of the elastic bearing body, and errors in design, manufacture and construction when the bridge girder is erected. And a post-process of fixing the upper surface of the foundation and the sole plate by absorbing the rotational displacement of the bridge girder caused by the sliding of the concave curved surface seat and the convex curved surface portion.
橋桁架設時に打設される床版等のコンクリート荷重や
プレストレストコンクリート製橋桁のストレス導入によ
り生ずるたわみ、あるいは橋桁施工時の設計・製作誤差
等により生ずる橋桁と弾性支承体との支圧面の平行度の
狂いは凸曲面部と凹曲面座とからなる曲面部で吸収し、
橋桁施工時の弾性支承体のたわみ等の変形はない。The parallelism of the bearing surface between the elastic beam and the bridge girder caused by the concrete load of the floor slab or the like introduced during the construction of the bridge girder, the deflection caused by the introduction of the stress of the prestressed concrete bridge girder, or the design / manufacturing error during the construction of the bridge girder. The irregularities are absorbed by the curved surface consisting of the convex curved surface and the concave curved seat,
There is no deformation such as deflection of the elastic bearing body during bridge girder construction.
本発明の橋桁の支承方法の実施例を地面に基づいて説
明する。An embodiment of the bridge girder support method of the present invention will be described based on the ground.
第１図〜第３図はその第１の実施例を示す。 1 to 3 show a first embodiment thereof.
第１図は支承部を含むコンクリート製橋桁の架設時の
前工程段階の縦断面図構造、第２図はその部分拡大構
造、第３図はその最終工程段階の構造を示す。第４図は
本発明の支承方法を斜橋に適用した例を示す。FIG. 1 is a longitudinal sectional view of a concrete bridge girder including a bearing portion in a pre-process stage when the bridge is erected, FIG. 2 is a partially enlarged structure thereof, and FIG. 3 is a structure of the final process stage. FIG. 4 shows an example in which the bearing method of the present invention is applied to a diagonal bridge.
図において、Ｇは上部構造としてのコンクリート製橋
桁、Ｂは支承を載置し、該支承を介してコンクリート製
橋桁Ｇの荷重を基礎に伝達する橋脚・橋台等の下部構造
である。In the figure, G is a concrete bridge girder as an upper structure, and B is a lower structure such as a pier or abutment on which a bearing is mounted and the load of the concrete bridge girder G is transmitted to the foundation via the bearing.
このコンクリート製橋桁Ｇと下部構造Ｂとの間に弾性
支承体Ｓが介装される。An elastic bearing S is interposed between the concrete bridge girder G and the lower structure B.
本実施例の弾性支承体Ｓは、ゴムパッド１とその上下
に一体的に固着される鋼板２（2A:上部鋼板、2B:下部鋼
板）とからなり、該弾性支承体Ｓの上部鋼板2Aにはソー
ルプレート４が固定され、下部構造Ｂ上にモルタル施工
により形成された台座５に載置される。The elastic bearing body S of the present embodiment comprises a rubber pad 1 and a steel plate 2 (2A: upper steel plate, 2B: lower steel plate) integrally fixed to the upper and lower sides of the rubber pad 1. The upper steel plate 2A of the elastic bearing body S The sole plate 4 is fixed and mounted on a pedestal 5 formed on the lower structure B by mortaring.
該弾性支承体Ｓは本実施例では１層のゴムパッドとな
っているが、鋼板とゴムパッドとを交互に多層に重ねた
多層状のものも使用されることは勿論である。In this embodiment, the elastic bearing body S is a single-layer rubber pad. However, it is a matter of course that a multi-layered structure in which steel plates and rubber pads are alternately stacked is used.
ソールプレート４の上面中央部には、球面突起部７が
突設されており、該球面突起部７にはすべり部材８が被
嵌され、これによって凸球面部９を構成する。A spherical projection 7 projects from the center of the upper surface of the sole plate 4, and a sliding member 8 is fitted on the spherical projection 7, thereby forming a convex spherical part 9.
一方、コンクリート製橋桁Ｇの下面には、この弾性支
承体Ｓに対応する位置において、前記した凸球面部９を
受け入れる凹球面座10が形成される。本実施例で、該凹
球面座10はコンクリート製橋桁Ｇの下面に埋設固定され
るすべり部材11をもって構成される。On the other hand, on the lower surface of the concrete bridge girder G, a concave spherical seat 10 for receiving the above-mentioned convex spherical portion 9 is formed at a position corresponding to the elastic bearing body S. In this embodiment, the concave spherical seat 10 includes a sliding member 11 embedded and fixed to the lower surface of the concrete bridge girder G.
凸球面部９と凹球面座10とは、それらのすべり部材
８、11を介して互いに球面状に摺動自在に接触するもの
であり、これらにより「球面部」を構成する。該球面部
において、ソールプレート４の上面と橋桁Ｇの下面とは
球面部が自在に回転するように所定の間隙13が保持され
ている。The convex spherical portion 9 and the concave spherical seat 10 are slidably in contact with each other via their sliding members 8 and 11 so as to be slidable in a spherical shape, and constitute a "spherical portion". In the spherical portion, a predetermined gap 13 is held between the upper surface of the sole plate 4 and the lower surface of the bridge girder so that the spherical portion can freely rotate.
この球面部の構成により、凹球面座10は凸球面部９に
対して全方向に回転自在であり、更には、水平方向の変
位に対しては凸球面部９と凹球面座10との噛み合いによ
り、その変位をゴムパッド１へと伝達する。Due to the configuration of the spherical portion, the concave spherical seat 10 is rotatable in all directions with respect to the convex spherical portion 9, and further, the engagement between the convex spherical portion 9 and the concave spherical seat 10 with respect to horizontal displacement. Thus, the displacement is transmitted to the rubber pad 1.
本実施例のコンクリート製橋桁Ｇの支持方法は以下の
手順でなされる。The method of supporting the concrete bridge girder G of this embodiment is performed in the following procedure.
第１図はその前工程を示し、第３図は最終工程を示
す。FIG. 1 shows the preceding step, and FIG. 3 shows the final step.
以下、施工手順に基づいて説明する。 Hereinafter, description will be given based on the construction procedure.
（１）下部構造Ｂの台座４に弾性支承体Ｓを設置する。(1) The elastic support S is installed on the pedestal 4 of the lower structure B.
（２）弾性支承体Ｓの上面に凸球面部９を備えたソール
プレート５を載置固定する。(2) The sole plate 5 having the convex spherical portion 9 is placed and fixed on the upper surface of the elastic support S.
（３）コンクリート製橋桁Ｇ下面の弾性支承体Ｓと相対
向する位置に凹球面座10を設ける。(3) A concave spherical seat 10 is provided on the lower surface of the concrete bridge girder G at a position opposite to the elastic bearing body S.
（４）該凹球面座10に前記ソールプレート５の凸球面部
を摺接させて配置し、弾性支承体上に橋桁Ｇを支持す
る。このとき、弾性支承体Ｓと型枠Ｃとの間に平行度の
狂いが生じても該平行度の狂いは球面部によって吸収さ
れ、その下部のゴムパッド１には伝達されない。(4) The convex spherical portion of the sole plate 5 is slidably disposed on the concave spherical seat 10 to support the bridge girder G on the elastic bearing body. At this time, even if the deviation of the parallelism occurs between the elastic bearing member S and the formwork C, the deviation of the parallelism is absorbed by the spherical portion and is not transmitted to the rubber pad 1 under the same.
（５）製作・施工に伴う平行度の狂いを上記球面部にて
吸収した後、弾性支承体Ｓとコンクリート製橋桁Ｇとの
間隙13を固結剤15をもって充填し塞ぐ。該固結剤は無収
縮性のもので、例えばレンジモルタルやエポキシ樹脂等
が好適なものとして使用される。(5) After the irregularity of the parallelism due to the production / construction is absorbed by the spherical portion, the gap 13 between the elastic bearing member S and the concrete bridge girder G is filled and closed with the binder 15. The binder is non-shrinkable, and for example, range mortar, epoxy resin and the like are preferably used.
この実施例の方法によれば、球面部の凸球面部９と凹
球面座10とは全方向に回転自在であるので、コンクリー
ト製橋桁Ｇの製作誤差による弾性支承体Ｓの支圧面の平
行度の狂い等はゴムパッド１に伝わらず、それだけゴム
パッド１の厚さを低減することができ、荷重支持能力が
向上する。According to the method of this embodiment, the convex spherical portion 9 of the spherical portion and the concave spherical seat 10 are rotatable in all directions, so that the parallelism of the bearing surface of the elastic bearing member S due to a manufacturing error of the concrete bridge girder G. Is not transmitted to the rubber pad 1, the thickness of the rubber pad 1 can be reduced accordingly, and the load supporting ability is improved.
また、コンクリート製橋桁Ｇの打設後は該橋桁Ｇと弾
性支承体Ｓとの間隙13を固結剤13により塞ぎ球面部の回
転を不能とするため、車両の通行等により橋桁に生じる
回転変位はゴムパッド１に伝達され、有効的に吸収され
る。Further, after the concrete bridge girder G is cast, the gap 13 between the bridge girder G and the elastic bearing member S is closed by the solidifying agent 13 so that the rotation of the spherical portion becomes impossible. Is transmitted to the rubber pad 1 and is effectively absorbed.
更に、球面部は橋桁Ｇに作用する水平方向の力に対し
ては凸球面部９と凹球面座10との噛み合いにより抵抗す
るため、コンクリート製橋桁Ｇの温度変化等による伸縮
等はそのままゴムパッド１に伝達され、該伸縮は有効的
に吸収される。Further, the spherical portion resists the horizontal force acting on the bridge girder G by the engagement between the convex spherical portion 9 and the concave spherical seat 10, so that the expansion and contraction due to the temperature change of the concrete bridge girder as it is is performed by the rubber pad 1 as it is. And the expansion and contraction is effectively absorbed.
更にまた、球面部においては、全方向の回転変位が吸
収されるので、コンクリート桁Ｇの構築中の位置調整が
この部分でなされ、施工性が向上するという利便性が生
じる。Furthermore, since the rotational displacement in all directions is absorbed in the spherical portion, the position adjustment during the construction of the concrete girder G is performed in this portion, and the convenience that the workability is improved is generated.
第５図は本発明の第２の実施例を示す。 FIG. 5 shows a second embodiment of the present invention.
本実施例においては、橋桁・橋台等の下部構造Ｂの上
面に凹球面座10を形成し、弾性支承体Ｓの上面に橋桁Ｇ
を載置しするとともに該弾性支承体Ｓの下面にソールプ
レート４を固定し、該橋桁の架設時は前記凹球面座10に
て該ソールプレート４の下面に形成した凸球面部９を摺
動可能に支持する。そして、該橋桁Ｇの架設終了後は、
ソールプレート４と下部構造Ｂとの間隙を固結剤15をも
って充填し塞ぐことにより、ソールプレート４と下部構
造Ｂとを固定する。In this embodiment, a concave spherical seat 10 is formed on the upper surface of a lower structure B such as a bridge girder or an abutment, and the bridge girder G is formed on an upper surface of an elastic bearing S.
And the sole plate 4 is fixed to the lower surface of the elastic bearing member S. When the bridge girder is erected, the convex spherical portion 9 formed on the lower surface of the sole plate 4 slides on the concave spherical seat 10. Support as much as possible. After the bridge girder G is erected,
By filling and closing the gap between the sole plate 4 and the lower structure B with the binder 15, the sole plate 4 and the lower structure B are fixed.
しかして、該橋桁Ｇの架設時、下部構造Ｂと橋桁Ｇと
の間に平行度の狂いが生じても、該平行度の狂いは、弾
性支承体Ｓを介してソールプレート４へと伝達され、該
ソールプレート４の凸球面部９と下部構造Ｂの凹球面座
10との摺接により吸収されるため、該狂いによるゴムパ
ッド１の変形はない。Thus, even when the degree of parallelism is deviated between the lower structure B and the bridge girder G when the bridge girder G is erected, the deviation of the parallelism is transmitted to the sole plate 4 via the elastic bearing S. A convex spherical portion 9 of the sole plate 4 and a concave spherical seat of the lower structure B.
Since the rubber pad 1 is absorbed by sliding contact with the rubber pad 10, there is no deformation of the rubber pad 1 due to the deviation.
なお、叙上の実施例では、コンクリート製橋桁につい
て説明したが、鋼製橋桁であっても同様の作用効果を発
揮するものである。In the above embodiment, the concrete bridge girder has been described. However, the same effect can be obtained with a steel bridge girder.
また、本発明は上記実施例に限定されるものではな
く、本発明の基本的技術思想の範囲内で種々設計変更が
可能である。すなわち、以下の態様は本発明の技術的範
囲に包含されるものである。Further, the present invention is not limited to the above embodiment, and various design changes can be made within the scope of the basic technical idea of the present invention. That is, the following embodiments are included in the technical scope of the present invention.
前記凸球面部９及び凹球面座10は、球面に限定される
ことなく、円筒面でもよい。The convex spherical portion 9 and the concave spherical seat 10 are not limited to spherical surfaces but may be cylindrical surfaces.
第６図に示すように、凹球面座金具17をもってコンク
リート製橋桁Ｇの下面より突出させ、その凹部17aに凸
球面部９を嵌合させる態様を採ることができる。As shown in FIG. 6, it is possible to adopt a mode in which the concave spherical washer 17 is projected from the lower surface of the concrete bridge girder G, and the convex spherical portion 9 is fitted into the concave portion 17a.
球面部はすべり部材８、11を介さずに直接ソールプレ
ート４の球面突起部７と橋桁Ｇとで摺接させてもよい。The spherical portion may be brought into sliding contact with the spherical projection 7 of the sole plate 4 and the bridge girder directly without passing through the sliding members 8 and 11.
ソールプレートと橋桁あるいは基礎との間隙をモルタ
ルによる充填閉鎖によるほか、適宜の介装物を挿入し、
場合によってはそれらの相互を溶接によって固定しても
よい。In addition to filling and closing the gap between the sole plate and the bridge girder or foundation with mortar, insert appropriate interposers,
In some cases, they may be fixed to each other by welding.
ハ．発明の効果 本発明の橋桁の支持方法によれば、橋桁の製作誤差に
より生じる平行度の狂い等は曲面部で吸収され、ゴムパ
ッドへの負担を低減することができる。C. According to the method for supporting a bridge girder of the present invention, a deviation in parallelism caused by a manufacturing error of the bridge girder is absorbed by the curved surface portion, and the burden on the rubber pad can be reduced.
また、橋桁の架設完了後は、橋桁と弾性支承体との間
の間隙を閉塞固定するので、従来の弾性支承体と同様、
橋桁の温度変化により生ずる伸縮や、車両の通行等によ
り生ずる回転変位はゴムパッドにより有効的に吸収され
る。Also, after the bridge girder is completed, the gap between the bridge girder and the elastic bearing is closed and fixed.
Expansion and contraction caused by temperature change of the bridge girder and rotational displacement caused by traffic of the vehicle are effectively absorbed by the rubber pad.
更に、球面部での回転変位により、橋桁の架設中の位
置調整が当該部分でなされ、施工性が向上する。Further, the rotational displacement at the spherical portion adjusts the position of the bridge girder during the erection, thereby improving workability.
図面は本発明の橋桁の支持方法の実施例を示し、第１図
はその一実施例の支承部の前工程段階を示す断面図、第
２図は第１図の要部拡大図、第３図は支承部の後工程段
階の断面図、第４図はコンクリート桁の支持態様の一例
示図、第５図は他の実施例の後工程段階の支承の断面
図、第６図は球面部の他の態様図である。第７図は従来
の橋桁の架設状態を示す図である。 Ｇ……橋桁、Ｂ……下部構造、Ｓ……弾性支承体、１…
…ゴムパッド、４……ソールプレート、９……凸曲面
部、10……凹曲面座The drawings show an embodiment of a method for supporting a bridge girder according to the present invention. FIG. 1 is a cross-sectional view showing a pre-process stage of a bearing portion of the embodiment, FIG. FIG. 4 is a cross-sectional view of a support part in a post-process stage, FIG. 4 is an exemplary view of a supporting mode of a concrete girder, FIG. It is another aspect figure of. FIG. 7 is a view showing a state in which a conventional bridge girder is erected. G: Bridge girder, B: Substructure, S: Elastic bearing, 1 ...
... Rubber pad, 4 ... Sole plate, 9 ... Convex curved surface, 10 ... Concave curved seat
Claims (4)
ッドを介装した弾性支承体により橋桁を支承する方法に
おいて、 前記基礎上に設置した弾性支承体の上面には凸曲面部を
備えたソールプレートが載置され、 前記橋桁の下面には前記弾性支承体と相対向する位置に
前記凸曲面部と摺接可能に凹曲面座が設けられ、 橋桁架設時の設計・製作・施工上の誤差に起因する橋桁
の回転変位を前記凸曲面部と凹曲面座の摺動により吸収
する前工程と、橋桁の下面とソールプレートとを固定す
る後工程とからなる、 ことを特徴とする橋桁の支承方法。1. A method of supporting a bridge girder by means of an elastic supporter mounted on a foundation such as a pier or an abutment and having a rubber pad interposed therebetween, wherein the elastic supporter installed on the base has a convex curved surface portion on an upper surface thereof. On the underside of the bridge girder, a concave curved seat is provided on the lower surface of the bridge girder so as to be in sliding contact with the convex curved surface portion. A pre-process of absorbing the rotational displacement of the bridge girder caused by the error of the bridge girder by sliding the convex curved surface portion and the concave curved seat, and a post-process of fixing the lower surface of the bridge girder and the sole plate. Support method.
ッドを介装した弾性支承体により橋桁を支承する方法に
おいて、 前記基礎上面には凹曲面座が設けられ、 前記弾性支承体の前記基礎上面と相対向する位置に前記
凹曲面座と摺接可能な凸曲面部を備えたソールプレート
が固定され、 橋桁架設時の設計・製作・施工上の誤差に起因する橋桁
の回転変位を前記凹曲面座と凸曲面部の摺動により吸収
する前工程と、基礎の上面とソールプレートとを固定す
る後工程とからなる、 ことを特徴とする橋桁の支承方法。2. A method for supporting a bridge girder by means of an elastic bearing body mounted on a foundation such as a pier or abutment and having a rubber pad interposed therebetween, wherein a concave curved surface seat is provided on an upper surface of the foundation, A sole plate provided with a convex curved surface portion capable of slidingly contacting the concave curved seat is fixed at a position facing the upper surface of the foundation, and the rotational displacement of the bridge girder caused by an error in design, manufacture, and construction when the bridge girder is erected. A method for supporting a bridge girder, comprising: a pre-process for absorbing by sliding between a concave curved seat and a convex curved portion; and a post-process for fixing an upper surface of a foundation and a sole plate.
ある請求項１又は２記載の橋桁の支承方法。3. The method for supporting a bridge girder according to claim 1, wherein the convex curved surface portion and the concave curved surface seat have a spherical shape.
である請求項１又は２記載の橋桁の支承方法。4. The method of supporting a bridge girder according to claim 1, wherein the convex curved surface portion and the concave curved surface seat have a cylindrical surface shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27921089A JP2777919B2 (en) | 1989-10-26 | 1989-10-26 | Bridge girder support method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27921089A JP2777919B2 (en) | 1989-10-26 | 1989-10-26 | Bridge girder support method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03140506A JPH03140506A (en) | 1991-06-14 |
| JP2777919B2 true JP2777919B2 (en) | 1998-07-23 |
Family
ID=17607969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27921089A Expired - Lifetime JP2777919B2 (en) | 1989-10-26 | 1989-10-26 | Bridge girder support method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2777919B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953325A (en) * | 2011-08-17 | 2013-03-06 | 交通运输部公路科学研究所 | Frictional slip seismic structure for improving seismic capacity of rigid frame bridges |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003064622A (en) * | 2001-08-22 | 2003-03-05 | Oiles Ind Co Ltd | Composite elastic support comprising upper and lower supports and laminated rubber support material of the same, and manufacturing method of laminated rubber support |
| KR100493985B1 (en) * | 2002-01-29 | 2005-06-08 | (주)청룡건설 | Level adjusting plate for bridge and the same installing method |
| KR100489577B1 (en) * | 2002-01-29 | 2005-05-16 | (주)청룡건설 | Level adjusting bearing for bridge |
| KR100950257B1 (en) * | 2007-11-05 | 2010-03-31 | 대봉비엠텍 주식회사 | Elastomeric bearing allowable for the complex movement |
| KR100952182B1 (en) * | 2009-01-23 | 2010-04-09 | 주식회사 한국피시 | Installing method of rubber pad shoe |
| KR100948681B1 (en) * | 2009-11-18 | 2010-03-18 | 한국건설기술연구원 | Elastomeric bearing allowable for the complex movement |
-
1989
- 1989-10-26 JP JP27921089A patent/JP2777919B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953325A (en) * | 2011-08-17 | 2013-03-06 | 交通运输部公路科学研究所 | Frictional slip seismic structure for improving seismic capacity of rigid frame bridges |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03140506A (en) | 1991-06-14 |
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