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发表刊物：Journal of Constructional Steel Research, Elsevier

摘要：A new type of steel beam system with replaceable buckling restrained fuses was proposed. The replaceable fuse consists of flange connecting plates and web connecting plates as energy dissipation devices, and cover plates to prevent local buckling of the fuses. A total of seven specimens were tested to investigate the influence of cover plates and moment capacity ratio of fuses followed by a detailed finite element analysis to evaluate the performance of specimens at higher drift levels. The tests results showed that the specimens with buckling restrained fuses exhibited stable hysteretic behavior without experiencing strength degradation. Multi-wave buckling instead of first mode buckling was observed in the flanges connecting plates up to 4% drift. The seismic performance before and after the replacement of the damaged fuses was almost identical which indicated the seismic resilient ability of the proposed steel beam system. The strength and failure mode of the steel beam system was mainly controlled by the moment capacity ratio of fuses, and a limiting moment capacity ratio of 0.69 was recommended to remain the beam segments in elastic state with the maximum drift of 6%. Further, an idealized load-displacement relationship was established which can be adopted in the design of the proposed beams.

论文类型：期刊论文

学科门类：工学

一级学科：土木工程

文献类型：J

卷号：194

页面范围：107310

是否译文：是

发表时间：2022-05-22

收录刊物：SCI

DOI码：10.1016/j.jcsr.2022.107310

发布期刊链接：https://www.sciencedirect.com/science/article/pii/S0143974X22001821