Numerical simulation and hybrid test of the girder bridge with self-centering unidirectional friction damper

IR > 土木工程学院

	Numerical simulation and hybrid test of the girder bridge with self-centering unidirectional friction damper
	Liu, Yunshuai1,2 ; Han, Jianping1,2
	2020-12-01
发表期刊	Tumu Gongcheng Xuebao/China Civil Engineering Journal
ISSN	1000131X
卷号	53 页码:294-300
摘要	The bearings of traditional girder bridges are easy to sustain large residual displacement under earthquake ground motion.In order to solve this problem, the traditional bridge bearings is replaced by a self-centering unidirectional friction damper system, which is constituted of Teflon sliding bearings and self-centering unidirectional friction dampers installed between the girder and the cap beam.First, the self-centering unidirectional friction damper with pretension was equivalent to a system which is composed with an element without pretension and a bilinear spring element without energy dissipation capacity in parallel, then the constitutive relation of the damper was simulated via OpenSees.Furthermore, a 4-span continuous bridge with self-centering unidirectional friction damper was taken as case study, and the dynamic analysis and hybrid test were conducted to investigate the displacement and internal force responses of the bridge under earthquake.For hybrid test, the damper and the bearing on the No.1 pier were taken as the experimental substructure, and the other parts of the bridge were taken as the numerical substructure.Comparison between the numerical analysis and the hybrid test results shows that the equivalent simulation of the damper is reasonable, and the bridge with the self-centering unidirectional friction dampers has good seismic mitigation and self-centering capacity. © 2020, Editorial Office of China Civil Engineering Journal. All right reserved.
关键词	Beams and girders Earthquakes Energy dissipation Constitutive relations Continuous bridges Friction damper Internal forces Residual displacement Seismic mitigation Sliding bearing Without energy dissipation
收录类别	EI
语种	中文
出版者	Chinese Society of Civil Engineering
EI入藏号	20210309782477
EI主题词	Friction
EI分类号	408.2 Structural Members and Shapes ; 484 Seismology ; 525.4 Energy Losses (industrial and residential)
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/150677
专题	土木工程学院教务处（创新创业学院）
作者单位	1.School of Civil Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou; 730050, China
第一作者单位	土木工程学院; 甘肃省土木工程防灾减灾重点实验室
第一作者的第一单位	土木工程学院
推荐引用方式 GB/T 7714	Liu, Yunshuai,Han, Jianping. Numerical simulation and hybrid test of the girder bridge with self-centering unidirectional friction damper[J]. Tumu Gongcheng Xuebao/China Civil Engineering Journal,2020,53:294-300.
APA	Liu, Yunshuai,&Han, Jianping.(2020).Numerical simulation and hybrid test of the girder bridge with self-centering unidirectional friction damper.Tumu Gongcheng Xuebao/China Civil Engineering Journal,53,294-300.
MLA	Liu, Yunshuai,et al."Numerical simulation and hybrid test of the girder bridge with self-centering unidirectional friction damper".Tumu Gongcheng Xuebao/China Civil Engineering Journal 53(2020):294-300.