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A platform for research: civil engineering, architecture and urbanism
Multi-span self-resetting swing double-column pier bridge system with additional small-displacement sliding and limiting device
The invention discloses a multi-span self-resetting swing double-column type pier bridge system with additional small displacement sliding and limiting devices, and belongs to the technical field of swing bridge systems, the multi-span self-resetting swing double-column type pier bridge system comprises a main beam, pier columns and a bearing platform which are sequentially arranged from top to bottom, and prestressed tendons are arranged among the main beam, the pier columns and the bearing platform; a small displacement sliding device is arranged between the pier column and the main beam; the small displacement sliding device is used for enabling the main beam to generate deformation displacement in the bridge direction relative to the pier column when the main beam is deformed; a limiting device is further arranged between the pier column and the main beam, and the limiting device is used for limiting continuous movement of the bridge when the main beam moves to the limiting position of deformation displacement relative to the pier column. The invention aims to allow the main beam to slide relative to the pier under the action of temperature; when relative slippage between the main beam and the pier columns in the bridge direction is large due to the earthquake effect, the limiting devices can be triggered, and the stress mechanism and the anti-seismic performance of the bridge system in the swinging process are the same as those of a common multi-span self-resetting swinging double-column type pier bridge system.
本发明公开了一种附加小位移滑动及限位装置的多跨自复位摇摆双柱式墩桥梁体系，属于摇摆桥梁体系技术领域，包括由上至下依次设置的主梁、墩柱以及承台，主梁、墩柱以及承台之间设置有预应力筋；墩柱与主梁之间设置有小位移滑动装置包括小位移滑动装置，小位移滑动装置用于供主梁形变时相对墩柱发生沿桥向的形变位移；墩柱与主梁之间还设置有限位装置，限位装置用于使主梁相对墩柱移动至形变位移的极限位置时限制桥梁的继续移动；本发明的目的在于允许主梁在温度作用与桥墩发生相对滑移；当地震作用导致主梁与墩柱间顺桥向相对滑移较大时会触发限位装置，使桥梁体系在摇摆过程中受力机理及抗震性能与普通多跨自复位摇摆双柱式墩桥梁体系相同。
Multi-span self-resetting swing double-column pier bridge system with additional small-displacement sliding and limiting device
The invention discloses a multi-span self-resetting swing double-column type pier bridge system with additional small displacement sliding and limiting devices, and belongs to the technical field of swing bridge systems, the multi-span self-resetting swing double-column type pier bridge system comprises a main beam, pier columns and a bearing platform which are sequentially arranged from top to bottom, and prestressed tendons are arranged among the main beam, the pier columns and the bearing platform; a small displacement sliding device is arranged between the pier column and the main beam; the small displacement sliding device is used for enabling the main beam to generate deformation displacement in the bridge direction relative to the pier column when the main beam is deformed; a limiting device is further arranged between the pier column and the main beam, and the limiting device is used for limiting continuous movement of the bridge when the main beam moves to the limiting position of deformation displacement relative to the pier column. The invention aims to allow the main beam to slide relative to the pier under the action of temperature; when relative slippage between the main beam and the pier columns in the bridge direction is large due to the earthquake effect, the limiting devices can be triggered, and the stress mechanism and the anti-seismic performance of the bridge system in the swinging process are the same as those of a common multi-span self-resetting swinging double-column type pier bridge system.
本发明公开了一种附加小位移滑动及限位装置的多跨自复位摇摆双柱式墩桥梁体系，属于摇摆桥梁体系技术领域，包括由上至下依次设置的主梁、墩柱以及承台，主梁、墩柱以及承台之间设置有预应力筋；墩柱与主梁之间设置有小位移滑动装置包括小位移滑动装置，小位移滑动装置用于供主梁形变时相对墩柱发生沿桥向的形变位移；墩柱与主梁之间还设置有限位装置，限位装置用于使主梁相对墩柱移动至形变位移的极限位置时限制桥梁的继续移动；本发明的目的在于允许主梁在温度作用与桥墩发生相对滑移；当地震作用导致主梁与墩柱间顺桥向相对滑移较大时会触发限位装置，使桥梁体系在摇摆过程中受力机理及抗震性能与普通多跨自复位摇摆双柱式墩桥梁体系相同。
Multi-span self-resetting swing double-column pier bridge system with additional small-displacement sliding and limiting device
一种附加小位移滑动及限位装置的多跨自复位摇摆双柱式墩桥梁体系
JIA JUNFENG (author) / BIAN JIACHEN (author) / GU RANXING (author) / BAI YULEI (author) / HAN QIANG (author) / PANG WEI (author) / ZHU ANJING (author) / MA JUN (author) / ZHANG BO (author)
2022-12-30
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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