A partially buckling-restrained brace with T-shaped double core for seismic retrofit: Experimental study, numerical analysis, and local stability design

Cong Zeng,Yifei Zhang,Junxian Zhao,Guoshan Xu,Dehong Wang,Tianlin Pan

Engineering Structures（2023）

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摘要

•Partially BRB with T-shaped double core (PTBRB) is proposed for seismic retrofit.•Cyclic tests conducted to examine seismic performance and failure modes of PTBRB.•Numerical analysis performed to identify the controlled buckling mode of PTBRB.•Theoretical local buckling capacity of PTBRB derived to achieve seismic fuse function.

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关键词

Buckling-restrained brace,Seismic retrofit,T-shaped member,Global buckling,Local buckling

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