Double-column type self-resetting concrete-filled steel tube pier with replaceable energy dissipation corrugated steel coupling beam: Fid-Bau Portal

Double-column type self-resetting concrete-filled steel tube pier with replaceable energy dissipation corrugated steel coupling beam

ZHAO QIUHONG / DONG SHUO / QI SHIJUN / WANG YONGXIN

Abstract

The invention relates to a double-column type self-resetting concrete-filled steel tube pier with a replaceable energy dissipation corrugated steel coupling beam. The pier comprises a bent cap, pier columns and a bearing platform, wherein two pier columns are arranged between the bent cap and the bearing platform in parallel, at least one replaceable energy dissipation corrugated steel coupling beam is transversely arranged between the two pier columns at intervals, each replaceable energy dissipation corrugated steel coupling beam comprises a replaceable corrugated energy dissipation sectionand a reinforced connecting section, each corrugated energy dissipation section comprises an upper flange, a lower flange and an energy dissipation corrugated steel web, the upper flange, the lower flange and the energy dissipation corrugated steel web are fixedly connected, and the replaceable energy dissipation corrugated steel coupling beams are connected with the pier columns through joints; and prestressed pipelines are reserved in the bent cap, the pier columns and the bearing platform, and the bent cap, the pier columns and the bearing platform are connected through post-tensioned prestressed steel bars penetrating through the prestressed pipelines. The pier is suitable for an earthquake area, convenient to construct and capable of being rapidly repaired after an earthquake.

本发明涉及一种带可更换耗能波纹钢连梁的双柱式自复位钢管混凝土桥墩，包括盖梁、墩柱和承台，所述的盖梁和所述的承台之间并列设置两根墩柱，所述的两个墩柱之间横向间隔设置至少一个可更换耗能波纹钢连梁，每个可更换耗能波纹钢连梁包括可更换的波纹耗能段和加强连接段，所述的波纹耗能段包括上翼缘、下翼缘和耗能波纹钢腹板，所述的上翼缘、下翼缘和耗能波纹钢腹板固定连接，可更换耗能波纹钢连梁与墩柱之间通过节点相连；盖梁、墩柱和承台预留有预应力管道，通过贯穿预应力管道的后张预应力钢筋将三者连接。本发明适用于地震区、施工便利、震后可快速修复。

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