标题：Testing of buckling - Restrained braces with replaceable fuses
作者：Hou H.T.; Li M.J.; Yan X.X.; Qiu C.X.; Liu X.F.; Qu B.
作者机构：[Hou, H.T] School of Civil Engineering, Shandong University, Jinan, Shandong Province, China;[ Li, M.J] School of Civil Engineering, Shandong Universi 更多
通讯作者地址：[Hou, H.T] School of Civil Engineering, Shandong UniversityChina;
来源：Proceedings of the 9th International Conference on Advances in Steel Structures, ICASS 2018
关键词：Buckling-restrained brace; Cyclic test; Energy dissipation; Replaceable structural fuse
摘要：This research was focused on a new type of Buckling-Restrained Braces (BRBs) with replaceable steel angle fuses. The proposed BRB is composed of the inner telescopic Buckling-Restraining Mechanism (BRM), the buckling-restrained angle fuses and the outer BRM. The proposed BRB offers the ease of post-earthquake examination on fuse damages, the convenient and prompt replacement of damaged fuses and the re-use of the buckling restraining elements. To investigate seismic behavior of the proposed BRB, four brace specimens were tested. The test parameters varied in these specimens included fuse design, debonding material, and loading protocol. Test results show that the proposed BRB can exhibit stable hysteretic behavior up to fairly high fuse strain levels. Failure modes of the specimens were found to be ruptures of the angle fuses as expected. The compression strength adjustment factors and the cumulative plastic deformations of the specimens were found to satisfy the requirements specified by AISC 341-16. Moreover, the authors demonstrated that the specimens repaired through fuse replacements remained satisfactory in the following tests. Copyright © 2018 by The Hong Kong Institute of Steel Construction.