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A platform for research: civil engineering, architecture and urbanism
DISPLACEMENT CONTROL STRUCTURE OF BRIDGE GIRDER
To provide a displacement control structure of a bridge girder, which can control the displacement of the bridge girder in a direction orthogonal to a bridge axis, and which can be applied to a bridge in which only a narrow space can be secured around a bearing part.SOLUTION: This displacement control structure of a bridge girder controls the displacement of the bridge girder in an earthquake. This device is provided with a side surface support member 3 for bringing an end part 33 into contact with a side surface in a direction R1 orthogonal to a bridge axis of a bridge girder 1, a pedestal part 4 arranged adjacently in the direction orthogonal to the bridge axis of a bearing part 2 of the bridge girder and fixed to a pier M, and a bolt joining part 5 for joining a lower part of the side surface support member on the pedestal part with a bolt. In the bolt joining part, when a force applied from the bridge girder to the side surface support member exceeds a predetermined value, slippage will occur, and the side surface support member will move.SELECTED DRAWING: Figure 1
【課題】橋軸直交方向の橋桁の変位を制御できるうえに、支承部の周辺に狭隘な空間しか確保できないような橋梁にも適用が可能となる橋桁の変位制御構造を提供する。【解決手段】地震時に橋桁の変位を制御する橋桁の変位制御構造である。橋桁１の橋軸直交方向Ｒ１の側面に端部３３を接触させる側面支持部材３と、橋桁の支承部２の橋軸直交方向に隣接して配置されて橋脚Ｍに固定される台座部４と、台座部の上に側面支持部材の下部をボルト接合させるボルト接合部５とを備えている。そして、ボルト接合部では、橋桁から側面支持部材に作用する力が所定値を超えると滑りが生じて側面支持部材が移動することになる。【選択図】図１
DISPLACEMENT CONTROL STRUCTURE OF BRIDGE GIRDER
To provide a displacement control structure of a bridge girder, which can control the displacement of the bridge girder in a direction orthogonal to a bridge axis, and which can be applied to a bridge in which only a narrow space can be secured around a bearing part.SOLUTION: This displacement control structure of a bridge girder controls the displacement of the bridge girder in an earthquake. This device is provided with a side surface support member 3 for bringing an end part 33 into contact with a side surface in a direction R1 orthogonal to a bridge axis of a bridge girder 1, a pedestal part 4 arranged adjacently in the direction orthogonal to the bridge axis of a bearing part 2 of the bridge girder and fixed to a pier M, and a bolt joining part 5 for joining a lower part of the side surface support member on the pedestal part with a bolt. In the bolt joining part, when a force applied from the bridge girder to the side surface support member exceeds a predetermined value, slippage will occur, and the side surface support member will move.SELECTED DRAWING: Figure 1
【課題】橋軸直交方向の橋桁の変位を制御できるうえに、支承部の周辺に狭隘な空間しか確保できないような橋梁にも適用が可能となる橋桁の変位制御構造を提供する。【解決手段】地震時に橋桁の変位を制御する橋桁の変位制御構造である。橋桁１の橋軸直交方向Ｒ１の側面に端部３３を接触させる側面支持部材３と、橋桁の支承部２の橋軸直交方向に隣接して配置されて橋脚Ｍに固定される台座部４と、台座部の上に側面支持部材の下部をボルト接合させるボルト接合部５とを備えている。そして、ボルト接合部では、橋桁から側面支持部材に作用する力が所定値を超えると滑りが生じて側面支持部材が移動することになる。【選択図】図１
DISPLACEMENT CONTROL STRUCTURE OF BRIDGE GIRDER
橋桁の変位制御構造
KOBAYASHI YUSUKE (author) / NINOMIYA RYO (author) / TANAKA KATSUYUKI (author) / SAITO MASAMITSU (author)
2023-06-23
Patent
Electronic Resource
Japanese
TEMPORARY STRUCTURE FOR BRIDGE GIRDER REMOVAL AND BRIDGE GIRDER REMOVING DEVICE
| European Patent Office | 2024