文献类型：期刊文献

英文题名：Influence of the rubber end plate on the hysteretic performance of SC-BRBs and structural seismic design

作者：Xie, Qin Zhou, Zhen Zhang, Lingxin

第一作者：谢钦;Xie, Qin

通信作者：Zhang, LX[1];Zhou, Z[2]

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

第一机构：China Earthquake Adm, Key Lab Earthquake Engn & Engn Vibrat, Inst Engn Mech, Harbin, Peoples R China

通信机构：corresponding author), China Earthquake Adm, Key Lab Earthquake Engn & Engn Vibrat, Inst Engn Mech, Harbin, Peoples R China;corresponding author), Southeast Univ, Key Lab Concrete & Prestressed Concrete Struct, Minist Educ, Nanjing 210096, Peoples R China.

年份：2021

卷号：242

外文期刊名：ENGINEERING STRUCTURES

收录：;EI(收录号：20212410508173);Scopus(收录号：2-s2.0-85107780999);WOS:【SCI-EXPANDED(收录号:WOS:000663654900003)】；

基金：The research described in this paper was sponsored by "Scientific Research Fund of Institute of Engineering Mechanics, China Earthquake Administration (Grant No. 2020 EEEVL2020D20) ", "The Opening Funds of State Key Laboratory of Building Safety and Built Environment and National Engineering Research Center of Building Technology" (BSBE201910) , "The Science and Technology Department of Guizhou Province" ( [2020] 1Y249) , "Highlevel Talent Research Funding Project of Guizhou Institute of Technology" (XJGC20190907) . The supports are gratefully acknowledged.

语种：英文

外文关键词：Rubber end plate; Self-centering; Initial stiffness; Quasi-static test; Structural seismic design

摘要：Existing self-centering braces are easily affected by machining errors, and the initial stiffness of the braces will obviously be less than the theoretical value, which is unfavourable for the seismic design and dynamic response control of the structure. Based on a theoretical analysis, the idea of using a rubber end plate to reduce the influence of machining errors is proposed in this paper, and the configuration of a self-centering bucklingrestrained brace with rubber end plates (SC-BRB-REP) is formed. The quasi-static test shows that the SC-BRB-REP can not only effectively control the residual deformation but also substantially improve the ability to control the initial stiffness of the brace, and the difference between the actual initial stiffness and the theoretical initial stiffness is less than 8%. The seismic design process of the SC-BRB frame is established based on the concept of direct displacement-based design (DDBD). Through the hysteretic behaviour research of the brace and the dynamic time-history analysis of the structure, it is evident that the reduction in the initial stiffness of the brace will lead to the reduction in the bearing capacity, thus increasing the seismic response of the structure and even exceeding the expected design objective. The SC-BRB-REP improves the ability to control the initial stiffness, and its structural design parameters and actual seismic response are basically consistent with the expectations, which effectively improves the structural design accuracy.