The investigation on mechanical behavior of a new-type self-centering viscoelastic damping brace

doi:10.6052/j.issn.1000-4750.2020.03.0168

	The investigation on mechanical behavior of a new-type self-centering viscoelastic damping brace
	Han, Jian-Ping 1,2; Zhang, Quan-Cai 1,2
刊名	Gongcheng Lixue/Engineering Mechanics
	2021
卷号	38 期号:1 页码:195-204
关键词	Damping Energy dissipation Numerical models Shape-memory alloy Viscoelasticity Displacement amplitudes Equivalent damping ratios Mechanical behavior Shape memory alloys(SMA) Super-elastic property Tensile deformation Viscoelastic damping Viscoelastic material
ISSN号	10004750
DOI	10.6052/j.issn.1000-4750.2020.03.0168
英文摘要	A new-type self-centering viscoelastic damping brace (SCVEDB) is proposed, in which the tensile deformation of shape memory alloy (SMA) and the shear deformation of viscoelastic material (VEM) are used to dissipate energy together, and the superelastic property of SMA is used to recenter. The most basic model of this new-type SCVEDB was designed and fabricated. The mechanical properties of the SCVEDB specimen under cyclic loading were tested. The effects of displacement amplitude, loading rate, number of SMA wires, and thickness of VEM on the performance of SCVEDB were investigated. The four parameters such as secant stiffness, dissipated energy, equivalent damping ratio and self-centering ratio are adopted to quantify the mechanical properties of SCVEDB. The cyclic tensile loading tests of SMA wires are also conducted to validate the proposed numerical model for SMA via OpenSees platform. And this model is paralleled further with the Bouc-Wen model for VEM to build the mechanical model to simulate the mechanical properties of the SCVEDB numerically. The numerical simulation results agree well with the experimental ones. Copyright ©2021 Engineering Mechanics. All rights reserved.
语种	中文
出版者	Tsinghua University
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/147184]
专题	教务处（创新创业学院）
作者单位	1.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Institute of Earthquake Protection and Disaster Mitigation, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Han, Jian-Ping,Zhang, Quan-Cai. The investigation on mechanical behavior of a new-type self-centering viscoelastic damping brace[J]. Gongcheng Lixue/Engineering Mechanics,2021,38(1):195-204.
APA	Han, Jian-Ping,&Zhang, Quan-Cai.(2021).The investigation on mechanical behavior of a new-type self-centering viscoelastic damping brace.Gongcheng Lixue/Engineering Mechanics,38(1),195-204.
MLA	Han, Jian-Ping,et al."The investigation on mechanical behavior of a new-type self-centering viscoelastic damping brace".Gongcheng Lixue/Engineering Mechanics 38.1(2021):195-204.