Hysteretic Behavior of Dual-Self-Centering Variable Friction Damper Braces with Low Pretensioned Force

被引：11
作者：
Wang, Yongwei [1 ]
Zhou, Zhen [1 ]
Zhang, Lingxin [2 ]
Zhao, Kunsong [1 ]
机构：
[1] Southeast Univ, Key Lab Concrete & Prestressed Concrete Struct, Minist Educ, Nanjing 210096, Peoples R China
[2] China Earthquake Adm, Key Lab Earthquake Engn & Engn Vibrat, Inst Engn Mech, Harbin, Peoples R China
来源：
JOURNAL OF EARTHQUAKE ENGINEERING | 2023年 / 27卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Self-centering; variable friction damper; hysteretic response; finite element analysis; post-yield stiffness; SEISMIC PERFORMANCE; STEEL FRAME; MULTISTORY BUILDINGS; SYSTEM; WALLS;
D O I：
10.1080/13632469.2021.1997840
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
To satisfy the resilient requirements, a novel dual-self-centering variable friction damper (DSC-VFD) brace with self-centering variable friction damper systems and basalt fiber-reinforced polymer tendons, is proposed. The working mechanism of the DSC-VFD brace was first investigated. Then, four DSC-VFD and SC-VFD braces with different groove angles were designed, and quasi-static experiments were conducted. Finally, finite element models of the DSC-VFD braced frame were created and the seismic responses of the frames were analyzed. The results show that the DSC-VFD brace presents a novel flag shape with large post-yield stiffness and enhanced energy dissipation which can effectively control the structural responses.
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页码：142 / 161
页数：20
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