Evaluation of optimal intensity measures in fragility analysis of cable-stayed bridges

被引：0
作者：
Zhong J. [1 ]
Pang Y. [1 ]
Yuan W. [1 ]
机构：
[1] State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai
来源：
Tongji Daxue Xuebao/Journal of Tongji University | 2016年 / 44卷 / 09期
关键词：
Cable-stayed bridges; Intensity measure; OpenSEES; Probabilistic seismic demand model(PSDM); Seismic fragility;
D O I：
10.11908/j.issn.0253-374x.2016.09.006
中图分类号：
学科分类号：
摘要：
In this study, the finite element model of Polonggou cable-stayed bridge is established using OpenSEES software considering multiple nonlinear effects. 80 pairs of ground motions are chosen from Pacific Earthguake Engineering Research Center(PEER), with the input of longitudinal and transvers direction. The five index: efficiency, practicality, proficiency, sufficiency and hazard computability, are adopted to discuss and compare the advantage and disadvantage of the five IMs, peak ground acceleration(PGA), peak ground velocity(PGV), Sa-T1, Sa-02, Sa-10(acceleration response spectrum at the period of the first mode, 0.2 s and 1.0 s). The results shows that PGA is the best in terms of the index of sufficiency and practicality, and relatively good in terms of the index of efficiency and proficiency. So the PGA is the selected as the best intensity measure(IM) for cable-stayed bridges. © 2016, Editorial Department of Journal of Tongji University. All right reserved.
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页码：1340 / 1346and1370
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