A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BRIDGE FALLING PREVENTION STRUCTURE
PROBLEM TO BE SOLVED: To provide a bridge falling prevention structure, which is a structure having a high sensitivity to action force and which may suppress functional reduction in a bridge due to an earthquake disaster as much as possible.SOLUTION: There is provided a bridge falling prevention structure in which a bridge pier 11 and a bridge girder 12 of a bridge 1 are connected. In addition, it comprises a lower bracket 2 fixed to a bridge axis surface 11a of the pier and an upper bracket 3 fixed onto a vertical surface in the bridge axis direction of the girder. Herein, the lower bracket includes a pair of groove wall parts 21 and 21 which are arranged in the bridge axis direction on both sides sandwiching a center recessed part 22 extending in the vertical direction, and the upper bracket includes a vertical lower part 31 arranged in the recessed part and projecting parts 32 and 32 projecting from both lower edge sides of the vertical lower part to a bridge axis orthogonal direction X and arranged at lower side of the groove wall parts.SELECTED DRAWING: Figure 1
【課題】作用する力に対して感度の高い構造であるうえに、震災による橋梁の機能低下を最小限に抑えることが可能な落橋防止構造を提供する。【解決手段】橋梁１の橋脚１１と橋桁１２とを接続させる落橋防止構造である。そして、橋脚の橋軸面１１ａに固定される下部ブラケット２と、橋桁の橋軸方向の鉛直面に固定される上部ブラケット３とを備えている。ここで、下部ブラケットは、鉛直方向に延びる中央の凹部２２を挟んだ両側に橋軸方向に張り出される一対の溝壁部２１，２１を有するとともに、上部ブラケットは、凹部に配置される垂下部３１と、垂下部の下端両側から橋軸直交方向Ｘに張り出されて溝壁部の下方に配置される突出部３２，３２とを有している。【選択図】図１
BRIDGE FALLING PREVENTION STRUCTURE
PROBLEM TO BE SOLVED: To provide a bridge falling prevention structure, which is a structure having a high sensitivity to action force and which may suppress functional reduction in a bridge due to an earthquake disaster as much as possible.SOLUTION: There is provided a bridge falling prevention structure in which a bridge pier 11 and a bridge girder 12 of a bridge 1 are connected. In addition, it comprises a lower bracket 2 fixed to a bridge axis surface 11a of the pier and an upper bracket 3 fixed onto a vertical surface in the bridge axis direction of the girder. Herein, the lower bracket includes a pair of groove wall parts 21 and 21 which are arranged in the bridge axis direction on both sides sandwiching a center recessed part 22 extending in the vertical direction, and the upper bracket includes a vertical lower part 31 arranged in the recessed part and projecting parts 32 and 32 projecting from both lower edge sides of the vertical lower part to a bridge axis orthogonal direction X and arranged at lower side of the groove wall parts.SELECTED DRAWING: Figure 1
【課題】作用する力に対して感度の高い構造であるうえに、震災による橋梁の機能低下を最小限に抑えることが可能な落橋防止構造を提供する。【解決手段】橋梁１の橋脚１１と橋桁１２とを接続させる落橋防止構造である。そして、橋脚の橋軸面１１ａに固定される下部ブラケット２と、橋桁の橋軸方向の鉛直面に固定される上部ブラケット３とを備えている。ここで、下部ブラケットは、鉛直方向に延びる中央の凹部２２を挟んだ両側に橋軸方向に張り出される一対の溝壁部２１，２１を有するとともに、上部ブラケットは、凹部に配置される垂下部３１と、垂下部の下端両側から橋軸直交方向Ｘに張り出されて溝壁部の下方に配置される突出部３２，３２とを有している。【選択図】図１
BRIDGE FALLING PREVENTION STRUCTURE
落橋防止構造
TODOROKI SHUNTARO (author) / WATANABE TAKESHI (author) / YANAGI HIROBUMI (author) / HATANAKA TAMOTSU (author) / ANPO TOMONORI (author) / KIBE HIROSHI (author) / NAKAI TOKUSUKE (author)
2017-09-21
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
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