A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a bridge bearing capable of suppressing the action of a large horizontal force on a substructure by the expansion and contraction of a bridge girder and transmitting the large horizontal force at the time of an earthquake or the like to the substructure by dispersing it to a plurality of bearings, and a bridge using such a bearing.SOLUTION: A bridge bearing has a laminated rubber bearing part 4 whose lower side is fixed on a pier or an abutment 1, an intermediate steel plate 5 fixed on the laminated rubber bearing part, a movable bearing part 6 supported movably in the axial direction of a bridge girder 2 on the intermediate steel plate, and an oil damper 7 for imparting resistance to relative displacement in the axial direction of the bridge girder 2 generated between the intermediate steel plate and the movable bearing part. This bridge bearing is used for the continuous girder together with the laminated rubber bearing part, and the bridge girder is supported by the laminated rubber bearing part on one abutment or pier, and the bridge bearing is used on another abutment or pier.SELECTED DRAWING: Figure 1
【課題】橋桁の伸縮によって下部工に大きな水平力が作用するのを抑えるとともに、地震時等の大きな水平力に対しては複数の支承に分散して下部工に伝達することができる橋梁用支承、及びこのような支承を用いた橋梁を提供する。【解決手段】橋梁用支承は、橋脚又は橋台１の上に下側が固定される積層ゴム支承部４と、積層ゴム支承部の上に固着された中間鋼板５と、中間鋼板上で橋桁２の軸線方向への移動が可能に支持された可動支承部６と、中間鋼板と可動支承部との間に生じる橋桁２の軸線方向の相対的変位に抵抗を付与するオイルダンパー７と、を有するものとする。この橋梁用支承を連続桁に積層ゴム支承とともに用い、１つの橋台又橋脚上では積層ゴム支承で橋桁を支持し、他の橋台又は橋脚上では上記橋梁用支承を用いる。【選択図】図１
To provide a bridge bearing capable of suppressing the action of a large horizontal force on a substructure by the expansion and contraction of a bridge girder and transmitting the large horizontal force at the time of an earthquake or the like to the substructure by dispersing it to a plurality of bearings, and a bridge using such a bearing.SOLUTION: A bridge bearing has a laminated rubber bearing part 4 whose lower side is fixed on a pier or an abutment 1, an intermediate steel plate 5 fixed on the laminated rubber bearing part, a movable bearing part 6 supported movably in the axial direction of a bridge girder 2 on the intermediate steel plate, and an oil damper 7 for imparting resistance to relative displacement in the axial direction of the bridge girder 2 generated between the intermediate steel plate and the movable bearing part. This bridge bearing is used for the continuous girder together with the laminated rubber bearing part, and the bridge girder is supported by the laminated rubber bearing part on one abutment or pier, and the bridge bearing is used on another abutment or pier.SELECTED DRAWING: Figure 1
【課題】橋桁の伸縮によって下部工に大きな水平力が作用するのを抑えるとともに、地震時等の大きな水平力に対しては複数の支承に分散して下部工に伝達することができる橋梁用支承、及びこのような支承を用いた橋梁を提供する。【解決手段】橋梁用支承は、橋脚又は橋台１の上に下側が固定される積層ゴム支承部４と、積層ゴム支承部の上に固着された中間鋼板５と、中間鋼板上で橋桁２の軸線方向への移動が可能に支持された可動支承部６と、中間鋼板と可動支承部との間に生じる橋桁２の軸線方向の相対的変位に抵抗を付与するオイルダンパー７と、を有するものとする。この橋梁用支承を連続桁に積層ゴム支承とともに用い、１つの橋台又橋脚上では積層ゴム支承で橋桁を支持し、他の橋台又は橋脚上では上記橋梁用支承を用いる。【選択図】図１
BRIDGE BEARING AND BRIDGE
橋梁用支承及び橋梁
WATANABE SHINYA (author)
2023-10-20
Patent
Electronic Resource
Japanese
BRIDGE BEARING REPLACEMENT METHOD AND BRIDGE BEARING STRUCTURE
| European Patent Office | 2019
| European Patent Office | 2019