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Influence of Near-fault Pulse-like Motion Characteristics on Seismic Performance of Tall Pier Bridges with Fragility Analysis
Journal of Earthquake Engineering ( IF 2.6 ) Pub Date : 2020-05-04 , DOI: 10.1080/13632469.2020.1751345
Xu Chen 1, 2 , Nailiang Xiang 3 , Jianzhong Li 4 , Zhongguo Guan 4
Affiliation  

ABSTRACT

This paper focuses on the effects of near-fault motion characteristics on the seismic performance of tall pier bridges. Using the analytical models calibrated by shake table tests, fragility analysis was conducted investigating the influence of near-fault motion features (i.e., period (Tv) and number (N) of velocity pulses). Results show that seismic fragility of the tall pier under near-fault motions is highly correlated to Tv and the damage states considered, while the influence of N is less significant. Consequently, when considering the seismic behavior of tall piers under near-fault pulse-like motions, choosing records with respect to Tv may lead to more reliable results.



中文翻译:

近断层脉冲运动特性对高墩桥抗震性能的影响及脆性分析

摘要

本文重点研究近断层运动特性对高墩桥抗震性能的影响。使用通过振动台测试校准的分析模型,进行了脆弱性分析,研究了近断层运动特征(即周期(T v)和速度脉冲数(N))的影响。结果表明,高墩在近断层运动下的地震脆弱性与Tv所考虑的损伤状态高度相关,而N的影响不太显着。因此,当考虑高墩在近断层脉冲运动下的地震行为时,选择关于 T v的记录可能会导致更可靠的结果。

更新日期:2020-05-04
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