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A platform for research: civil engineering, architecture and urbanism
Novel prefabricated assembled pier connecting structure and construction method thereof
The invention provides a novel prefabricated assembled pier connecting structure and a construction method thereof. The connecting structure comprises an assembled pier, a plurality of semi-grouting sleeves are arranged in the assembled pier, the multiple semi-grouting sleeves are used for connecting longitudinal steel bars located in the assembled pier and reserved steel bars located in a bearing platform, a plurality of concrete piles are in contact connection with the lower part of the bearing platform, a plurality of steel corbel structures are arranged on the plurality of concrete piles, and unbonded prestressed tendons are arranged on the plurality of steel corbel structures. The invention further provides a construction method of the connecting structure. The construction method comprises the steps of assembly prefabrication, bottom construction, prestressed tendon installation and hoisting. The bridge can be subjected to the self-resetting effect of the prestressed tendons in the two horizontal directions, the anti-seismic performance of the bridge in the longitudinal bridge direction and the transverse bridge direction is effectively improved, damage to the bridge piers can be reduced while the anti-seismic performance of the bridge can be improved, and meanwhile the repairability of the bridge after an earthquake can be greatly improved.
本发明提供一种新型预制拼装桥墩连接结构及其施工方法，连接结构包括装配式桥墩，装配式桥墩的内部设有多根半灌浆套筒，多根半灌浆套筒用于连接位于装配式桥墩内的纵向钢筋和位于承台内的预留钢筋，承台的下方接触连接有多个混凝土桩柱，多个混凝土桩柱上设有若干钢牛腿结构，若干钢牛腿结构上均设有无粘结预应力筋；本发明还提供了该连接结构的施工方法，包括预制组件、底部施工、安装预应力筋和吊装步骤。本发明能够使得桥梁在两个水平方向均能受到预应力筋的自复位作用，有效提升桥梁顺桥向和横桥向的抗震性能，可提升桥梁抗震性能的同时减轻桥墩本身损伤，同时可大幅提升桥梁震后可修复性。
Novel prefabricated assembled pier connecting structure and construction method thereof
The invention provides a novel prefabricated assembled pier connecting structure and a construction method thereof. The connecting structure comprises an assembled pier, a plurality of semi-grouting sleeves are arranged in the assembled pier, the multiple semi-grouting sleeves are used for connecting longitudinal steel bars located in the assembled pier and reserved steel bars located in a bearing platform, a plurality of concrete piles are in contact connection with the lower part of the bearing platform, a plurality of steel corbel structures are arranged on the plurality of concrete piles, and unbonded prestressed tendons are arranged on the plurality of steel corbel structures. The invention further provides a construction method of the connecting structure. The construction method comprises the steps of assembly prefabrication, bottom construction, prestressed tendon installation and hoisting. The bridge can be subjected to the self-resetting effect of the prestressed tendons in the two horizontal directions, the anti-seismic performance of the bridge in the longitudinal bridge direction and the transverse bridge direction is effectively improved, damage to the bridge piers can be reduced while the anti-seismic performance of the bridge can be improved, and meanwhile the repairability of the bridge after an earthquake can be greatly improved.
本发明提供一种新型预制拼装桥墩连接结构及其施工方法，连接结构包括装配式桥墩，装配式桥墩的内部设有多根半灌浆套筒，多根半灌浆套筒用于连接位于装配式桥墩内的纵向钢筋和位于承台内的预留钢筋，承台的下方接触连接有多个混凝土桩柱，多个混凝土桩柱上设有若干钢牛腿结构，若干钢牛腿结构上均设有无粘结预应力筋；本发明还提供了该连接结构的施工方法，包括预制组件、底部施工、安装预应力筋和吊装步骤。本发明能够使得桥梁在两个水平方向均能受到预应力筋的自复位作用，有效提升桥梁顺桥向和横桥向的抗震性能，可提升桥梁抗震性能的同时减轻桥墩本身损伤，同时可大幅提升桥梁震后可修复性。
Novel prefabricated assembled pier connecting structure and construction method thereof
一种新型预制拼装桥墩连接结构及其施工方法
XU JIGANG (author) / SHEN ZISEN (author) / XU WEIJIE (author)
2022-02-11
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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