A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
FUNCTION SEPARATION TYPE SHOCK ABSORBING DEVICE
To provide a function separation type shock absorbing device that is compact and can be easily installed in a narrow space, and can be easily restored after a disaster.SOLUTION: A function separation type shock absorbing device comprises retaining chains 3, 4 and a shock absorber 2. The retaining chains 3, 4 are connected to a side part of an abutment and a lower part of a bridge girder end. The shock absorber 2 is arranged between the retaining chains 3, 4, and is connected to the retaining chains 3, 4 via connecting pins 13 and 14. The shock absorber 2 comprises a tensile deformation member 9 and a cushioning material 16, which are deformed in the bridge axial direction elastically or plastically depending on stepwise relative displacement between the abutment and a bridge girder. The tensile deformation member 9 has connection holes 10 and 11 at intervals in a bridge axial direction of the bridge girder. The connection hole 10 is a long hole that is long in the bridge axial direction. The cushioning material 16 is installed in the connection hole 10. The cushioning material 16 is compressed by the connecting pin 13 moving in the connection hole 10 due to the stepwise relative displacement between the abutment and the bridge girder, and is elastically or plastically deformed prior to the tensile deformation member 9.SELECTED DRAWING: Figure 3
【課題】コンパクトで狭いスペースにも容易に設置でき、かつ被災後の復旧が容易な機能分離型衝撃吸収装置を提供する。【解決手段】引留めチェーン３，４と衝撃吸収体２とから構成する。引留めチェーン３，４は橋台の側部と橋桁端部の下部に繋ぎ止め、衝撃吸収体２は引留めチェーン３，４間に配置し、引留めチェーン３，４に連結ピン１３と１４によって繋ぎ止める。衝撃吸収体２は橋台と橋桁間の相対変位によって橋軸方向に弾塑性変形する引張り変形材９と緩衝材１６とから構成する。引張り変形材９は橋桁の橋軸方向に間隔をおいて連結孔１０と１１を有する。連結孔１０は橋軸方向に長い長孔をなし、連結孔１０内に緩衝材１６を設置する。緩衝材１６は橋台と橋桁間の相対変位によって連結孔１０内を移動する連結ピン１３によって圧縮され、引張り変形材９に先行して弾塑性変形する。【選択図】図３
FUNCTION SEPARATION TYPE SHOCK ABSORBING DEVICE
To provide a function separation type shock absorbing device that is compact and can be easily installed in a narrow space, and can be easily restored after a disaster.SOLUTION: A function separation type shock absorbing device comprises retaining chains 3, 4 and a shock absorber 2. The retaining chains 3, 4 are connected to a side part of an abutment and a lower part of a bridge girder end. The shock absorber 2 is arranged between the retaining chains 3, 4, and is connected to the retaining chains 3, 4 via connecting pins 13 and 14. The shock absorber 2 comprises a tensile deformation member 9 and a cushioning material 16, which are deformed in the bridge axial direction elastically or plastically depending on stepwise relative displacement between the abutment and a bridge girder. The tensile deformation member 9 has connection holes 10 and 11 at intervals in a bridge axial direction of the bridge girder. The connection hole 10 is a long hole that is long in the bridge axial direction. The cushioning material 16 is installed in the connection hole 10. The cushioning material 16 is compressed by the connecting pin 13 moving in the connection hole 10 due to the stepwise relative displacement between the abutment and the bridge girder, and is elastically or plastically deformed prior to the tensile deformation member 9.SELECTED DRAWING: Figure 3
【課題】コンパクトで狭いスペースにも容易に設置でき、かつ被災後の復旧が容易な機能分離型衝撃吸収装置を提供する。【解決手段】引留めチェーン３，４と衝撃吸収体２とから構成する。引留めチェーン３，４は橋台の側部と橋桁端部の下部に繋ぎ止め、衝撃吸収体２は引留めチェーン３，４間に配置し、引留めチェーン３，４に連結ピン１３と１４によって繋ぎ止める。衝撃吸収体２は橋台と橋桁間の相対変位によって橋軸方向に弾塑性変形する引張り変形材９と緩衝材１６とから構成する。引張り変形材９は橋桁の橋軸方向に間隔をおいて連結孔１０と１１を有する。連結孔１０は橋軸方向に長い長孔をなし、連結孔１０内に緩衝材１６を設置する。緩衝材１６は橋台と橋桁間の相対変位によって連結孔１０内を移動する連結ピン１３によって圧縮され、引張り変形材９に先行して弾塑性変形する。【選択図】図３
FUNCTION SEPARATION TYPE SHOCK ABSORBING DEVICE
機能分離型衝撃吸収装置
TANAKA YOSHINARI (author) / MAEJIMA MINORU (author) / TAKEUCHI DAISUKE (author)
2020-04-23
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
SHOCK-ABSORBING TYPE DECK ROAD WITH INCLINE PREVENTION FUNCTION
| European Patent Office | 2022
| European Patent Office | 2019