Effect of ground motion duration on seismic fragility of RC frames with different beam-column joint failure modes

doi:10.6052/j.issn.1000-4750.2017.01.0089

	Effect of ground motion duration on seismic fragility of RC frames with different beam-column joint failure modes
	Sun, Xiao-Yun 1,2; Han, Jian-Ping 1,2; Dang, Yu 1,2; Zhou, Ying 3
刊名	Gongcheng Lixue/Engineering Mechanics
	2018
卷号	35 期号:5 页码:193-203
关键词	Earthquake effects Failure modes Seismic design Seismic response Seismic waves Shear deformation Shear flow Fragility curves Fragility level RC frames Seismic Performance Significant duration
ISSN号	10004750
DOI	10.6052/j.issn.1000-4750.2017.01.0089
英文摘要	Ground motion duration has great influence on the cumulative fragility and damage of inelastic structures, but the consideration of duration is not clear in current seismic analysis and design. 60 ground motion records with different durations and peak ground accelerations were selected from the PEER strong ground motion database, and categorized as 30 long- and 30 short-duration records. A three-dimensional model of an infilled RC frame teaching building was built via OpenSees. In order to simulate the different failure modes of the beam-column joints, three models were taken, which are the beam-column joints without considering inelastic deformation, with considering the bar bond-slip, and with considering both the bar bond-slip and the shear deformation. Seismic fragility analysis was carried out on the three models under the 60 ground motion records, and the fragility curves for two the kinds of records under different cases were obtained corresponding to five damage levels. Furthermore, the influence of ground motion duration on structural seismic behavior considering the different failure modes of beam-column joints was evaluated. The analytical results show that comparing with the short-duration records, the long-duration records can increase the structural exceedance probability obviously for the corresponding damage levels and beam-column joint cases. Comparing with the case without considering inelastic deformation of beam-column joints, both long- and short-duration records can increase the structural exceedance probability clearly under the same damage level when considering the bar bond-slip or considering both the bar bond-slip and the shear deformation. The effect of long-duration ground motion records on structural seismic performance considering the bar bond-slip and the shear deformation of the beam-column joints is more obvious. © 2018, Engineering Mechanics Press. All right 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/114491]
专题	教务处（创新创业学院）土木工程学院
作者单位	1.Institute of Earthquake Protection and Disaster Mitigation, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China; 2.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China; 3.State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai; 200092, China
推荐引用方式 GB/T 7714	Sun, Xiao-Yun,Han, Jian-Ping,Dang, Yu,et al. Effect of ground motion duration on seismic fragility of RC frames with different beam-column joint failure modes[J]. Gongcheng Lixue/Engineering Mechanics,2018,35(5):193-203.
APA	Sun, Xiao-Yun,Han, Jian-Ping,Dang, Yu,&Zhou, Ying.(2018).Effect of ground motion duration on seismic fragility of RC frames with different beam-column joint failure modes.Gongcheng Lixue/Engineering Mechanics,35(5),193-203.
MLA	Sun, Xiao-Yun,et al."Effect of ground motion duration on seismic fragility of RC frames with different beam-column joint failure modes".Gongcheng Lixue/Engineering Mechanics 35.5(2018):193-203.