UHPC chord member and steel web member connecting structure and construction method and application thereof: Fid-Bau Portal

UHPC chord member and steel web member connecting structure and construction method and application thereof

HE GUANG / SHAO XUDONG / CAO XUELIN / CHEN JINYU / GAO XIANG

The invention discloses a UHPC chord member and steel web member connecting structure and a construction method and application thereof.The UHPC chord member and steel web member connecting structure comprises a box-shaped UHPC chord member, a pressed web member and a pulled web member, the box-shaped UHPC chord member, the pressed web member and the pulled web member are connected to form a K-shaped joint connecting structure, the box-shaped UHPC chord member is of a steel bar UHPC structure, and the UHPC chord member and steel web member connecting structure further comprises a joint plate; the node plate comprises a pre-embedded steel plate pre-embedded in the box-shaped UHPC chord member and a plurality of connecting steel plates connected with the pre-embedded steel plate, two connecting parts are formed at the ends, away from the pre-embedded steel plate, of the connecting steel plates, the two connecting parts are connected with the compression web member and the tension web member respectively, and longitudinal T-shaped perforated steel plates extending into the box-shaped UHPC chord member are arranged on the connecting steel plates. The connecting structure of the UHPC chord member and the steel web member has excellent bearing capacity, shearing resistance and drawing resistance.

本发明公开了一种UHPC弦杆与钢腹杆的连接构造及其施工方法和应用，包括箱形UHPC弦杆、受压腹杆及受拉腹杆，箱形UHPC弦杆、受压腹杆及受拉腹杆连接形成K形节点连接构造，箱形UHPC弦杆为钢筋UHPC结构，还包括节点板，节点板包括预埋在箱形UHPC弦杆内部的预埋钢板和多块与预埋钢板相连的连接钢板，多块连接钢板远离预埋钢板的一端形成两个连接部，两个连接部分别连接受压腹杆和受拉腹杆，连接钢板上设有延伸到箱形UHPC弦杆中的纵向T形开孔钢板。该UHPC弦杆与钢腹杆的连接构造具有优异的承载能力、抗剪性能和抗拉拔性能。

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