Engineering characteristics of near-fault vertical ground motions and their effect on the seismic response of bridges

被引：0
|
作者：
Xinle Li
Huijuan Dou
Xi Zhu
机构：
[1] Dalian Nationalities University,College of Architecture and Civil Engineering
[2] Beijing Jiaotong University,College of Architecture and Civil Engineering
来源：
Earthquake Engineering and Engineering Vibration | 2007年 / 6卷
关键词：
near-fault vertical ground motion; peak value ratio; spectrum ratio; bridge; seismic response;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A wide variety of near-fault strong ground motion records were collected from various tectonic environments worldwide and were used to study the peak value ratio and response spectrum ratio of the vertical to horizontal component of ground motion, focusing on the effect of earthquake magnitude, site conditions, pulse duration, and statistical component. The results show that both the peak value ratio and response spectrum ratio are larger than the 2/3 value prescribed in existing seismic codes, and the relationship between the vertical and horizontal ground motions is comparatively intricate. In addition, the effect of the near-fault ground motions on bridge performance is analyzed, considering both the material nonlinear characteristics and the P∼Δ effect.
引用
收藏
页码：345 / 350
页数：5
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