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A platform for research: civil engineering, architecture and urbanism
Socket type energy dissipation swing pier-cover beam joint structure and construction method thereof
The invention relates to a socket type energy dissipation swing pier-cover beam joint structure and a construction method thereof, and belongs to the technical field of bridge engineering. Comprising a pier prefabricated and assembled upper section, a cover beam, a swinging device, a limiting type energy dissipation device, an amplification type energy dissipation device and unbonded prestressed tendons. The prefabricated and assembled upper section of the bridge pier is embedded into the cover beam in a socket manner, and a swinging device is arranged between the top and the bottom of the cover beam; limiting type energy dissipation devices are arranged on the portion, embedded into the bent cap, of the prefabricated and assembled upper segment of the bridge pier and the side wall of the bent cap. An amplification type energy consumption device is arranged at the connection position of the side wall of the prefabricated and assembled upper segment of the pier and the bottom face pier-cover beam of the cover beam; unbonded prestressed tendons are arranged among the prefabricated and assembled upper section of the bridge pier, the cover beam and the swinging device in a penetrating manner. The problems that a traditional swing bridge pier and bent cap joint is insufficient in shear resistance and concentrated in stress are solved, the shear resistance, the energy dissipation capacity and the function restorability of the bridge pier-bent cap joint are improved, and the requirements for post-earthquake maintenance and reinforcement are reduced.
本发明涉及一种承插型耗能摇摆桥墩‑盖梁节点构造及其施工方法，属于桥梁工程技术领域。包括桥墩预制拼装上部节段、盖梁、摇摆装置、限位式耗能装置、放大式耗能装置及无粘结预应力筋；桥墩预制拼装上部节段以承插的形式嵌入盖梁内，顶部与盖梁底部之间布置有摇摆装置；桥墩预制拼装上部节段嵌入盖梁的部分与盖梁侧壁布置有限位式耗能装置；桥墩预制拼装上部节段侧壁与盖梁底面墩‑盖梁连接位置处布置有放大式耗能装置；桥墩预制拼装上部节段、盖梁、摇摆装置之间贯穿设置有无粘结预应力筋。本发明克服了传统摇摆桥墩与盖梁节点抗剪能力不足及应力集中问题，提高了桥墩‑盖梁节点的抗剪性能、耗能能力和功能可恢复性，减少了震后维修与加固需求。
Socket type energy dissipation swing pier-cover beam joint structure and construction method thereof
The invention relates to a socket type energy dissipation swing pier-cover beam joint structure and a construction method thereof, and belongs to the technical field of bridge engineering. Comprising a pier prefabricated and assembled upper section, a cover beam, a swinging device, a limiting type energy dissipation device, an amplification type energy dissipation device and unbonded prestressed tendons. The prefabricated and assembled upper section of the bridge pier is embedded into the cover beam in a socket manner, and a swinging device is arranged between the top and the bottom of the cover beam; limiting type energy dissipation devices are arranged on the portion, embedded into the bent cap, of the prefabricated and assembled upper segment of the bridge pier and the side wall of the bent cap. An amplification type energy consumption device is arranged at the connection position of the side wall of the prefabricated and assembled upper segment of the pier and the bottom face pier-cover beam of the cover beam; unbonded prestressed tendons are arranged among the prefabricated and assembled upper section of the bridge pier, the cover beam and the swinging device in a penetrating manner. The problems that a traditional swing bridge pier and bent cap joint is insufficient in shear resistance and concentrated in stress are solved, the shear resistance, the energy dissipation capacity and the function restorability of the bridge pier-bent cap joint are improved, and the requirements for post-earthquake maintenance and reinforcement are reduced.
本发明涉及一种承插型耗能摇摆桥墩‑盖梁节点构造及其施工方法，属于桥梁工程技术领域。包括桥墩预制拼装上部节段、盖梁、摇摆装置、限位式耗能装置、放大式耗能装置及无粘结预应力筋；桥墩预制拼装上部节段以承插的形式嵌入盖梁内，顶部与盖梁底部之间布置有摇摆装置；桥墩预制拼装上部节段嵌入盖梁的部分与盖梁侧壁布置有限位式耗能装置；桥墩预制拼装上部节段侧壁与盖梁底面墩‑盖梁连接位置处布置有放大式耗能装置；桥墩预制拼装上部节段、盖梁、摇摆装置之间贯穿设置有无粘结预应力筋。本发明克服了传统摇摆桥墩与盖梁节点抗剪能力不足及应力集中问题，提高了桥墩‑盖梁节点的抗剪性能、耗能能力和功能可恢复性，减少了震后维修与加固需求。
Socket type energy dissipation swing pier-cover beam joint structure and construction method thereof
一种承插型耗能摇摆桥墩-盖梁节点构造及其施工方法
YUAN WANYING (author) / SI XIAOLONG (author) / WEN JIANIAN (author) / HU MENGHAN (author) / LIANG XU (author) / LIAO WEIZHANG (author) / HAN QIANG (author)
2024-12-06
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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