Seismic Design of Bridges against Near-Fault Ground Motions Using Combined Seismic Isolation and Restraining Systems of LRBs and CDRs

doi:10.1155/2019/4067915

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Seismic Design of Bridges against Near-Fault Ground Motions Using Combined Seismic Isolation and Restraining Systems of LRBs and CDRs
	Li, Xiaoli 1; Shi, Yan 2
刊名	Shock and Vibration
	2019
卷号	2019
关键词	Bearings (structural) Bridges Concrete bridges Control systems Earthquakes Faulting Nonmetallic bearings Piers Rare earths Reinforced concrete
ISSN号	10709622
DOI	10.1155/2019/4067915
英文摘要	This paper focuses on the seismic isolation design of near-fault bridges under the seismic excitations of near-fault ground motions in high-intensity earthquake zones and proposes a combined control system using lead rubber bearings (LRBs) and cable displacement restrainers (CDRs) along with ductility seismic resistance for the reinforced concrete piers. As part of the performance-based seismic design framework, this study provides the quantitative design criteria for multilevel performance-based objectives of a combined control system under conditions of frequent earthquake (E1), design earthquake (medium earthquake), and rare earthquake (E2). Moreover, in this study, a preliminary performance-based seismic isolation design for a near-fault actual highway bridge in high-intensity earthquake zones (basic peak of ground acceleration 0.4 g) was developed. Using nonlinear time-history analysis of the actual bridge under near-fault ground motions, the feasibility of a performance-based design method was validated. Furthermore, to ensure the predicted performance of the isolated bridges during a strong earthquake, a relatively quantitative design in structural details derived from the stirrup ratio of piers, expansion joints gap, supported length of capping beams, and limited vertical displacement response was obtained. © 2019 Xiaoli Li and Yan Shi.
WOS研究方向	Acoustics ; Engineering ; Mechanics
语种	英语
出版者	Hindawi Limited, 410 Park Avenue, 15th Floor, 287 pmb, New York, NY 10022, United States
WOS记录号	WOS:000465339800001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/151224]
专题	土木工程学院
作者单位	1.Institute of Bridge Engineering, Dalian Maritime University, Dalian; 116026, China; 2.School of Civil Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Li, Xiaoli,Shi, Yan. Seismic Design of Bridges against Near-Fault Ground Motions Using Combined Seismic Isolation and Restraining Systems of LRBs and CDRs[J]. Shock and Vibration,2019,2019.
APA	Li, Xiaoli,&Shi, Yan.(2019).Seismic Design of Bridges against Near-Fault Ground Motions Using Combined Seismic Isolation and Restraining Systems of LRBs and CDRs.Shock and Vibration,2019.
MLA	Li, Xiaoli,et al."Seismic Design of Bridges against Near-Fault Ground Motions Using Combined Seismic Isolation and Restraining Systems of LRBs and CDRs".Shock and Vibration 2019(2019).