文献类型：期刊文献

英文题名：Self-centering BRBs with composite tendons in series: Tests and structural analyses

作者：Xie, Qin Zhou, Zhen Zhang, Lingxin

第一作者：Xie, Qin;谢钦

通信作者：Zhou, Z[1]

机构：[1]China Earthquake Adm, Inst Engn Mech, Harbin 150080, Peoples R China;[2]China Earthquake Adm, Key Lab Earthquake Engn & Engn Vibrat, Harbin 150080, Peoples R China;[3]Guizhou Inst Technol, Sch Civil Engn, Guiyang 550003, Peoples R China;[4]Southeast Univ, Minist Educ, Key Lab Concrete & Prestressed Concrete Struct, Nanjing 210096, Peoples R China

第一机构：China Earthquake Adm, Inst Engn Mech, Harbin 150080, Peoples R China

通信机构：corresponding author), Southeast Univ, Minist Educ, Key Lab Concrete & Prestressed Concrete Struct, Nanjing 210096, Peoples R China.

年份：2021

卷号：40

期号：3

起止页码：435-450

外文期刊名：STEEL AND COMPOSITE STRUCTURES

收录：;EI(收录号：20213410811316);Scopus(收录号：2-s2.0-85113282652);WOS:【SCI-EXPANDED(收录号:WOS:000684521300008)】；

基金：The research described in this paper was financially supported by "Scientific Research Fund of Institute of Engineering Mechanics, China Earthquake Administration (Grand No. 2020EEEVL0407)", "The Science and Technology Department of Guizhou Province ([2020]1Y249)", "China Postdoctoral Science Foundation (2021M690621)", "High-level Talent Research Funding Project of Guizhou Institute of Technology (XJGC20190907)", "Academic Cultivation and Innovative Exploration Project of Guizhou Institute of Technology (GZLGXM-10)". The supports are gratefully acknowledged.

语种：英文

外文关键词：composite tendons in series; low-yield steel; quasi-static test;   seismic response; self-centering

摘要：The self-centering system and yielding energy dissipation system are two main parts of self-centering bucklingrestrained braces (SC-BRBs), which have important influences on brace performance. To improve the performance of the two parts, an SC-BRB with composite tendons in series (SC-BRB-CTS) is proposed by introducing a self-centering system in series that can improve the deformation capability of the brace, and the yielding energy dissipation system made of low-yield steel LYP160 with a strong energy dissipation capacity is adopted. The performance of the braces is studied by quasi-static tests, and the influence of the self-centering system in series and low-yield steel on the seismic performance of the structure is determined by nonlinear dynamic analyses and fragility analyses. The results show that the deformation capacity of the SC-BRB-CTS is approximately 44% higher than that of a traditional SC-BRB, and the collapse resistance of the structure is improved by avoiding or delaying tendon fracture. The use of LYP160 steel core plates can substantially improve the energy dissipation capacity and post-yielding bearing capacity of the brace, which is beneficial for reducing the seismic response of the structure.