摘要
近断层地震动的速度脉冲效应对结构抗震提出了更高的要求,结合典型的近断层地震记录分析了速度脉冲的基本特性,并对人工近断层地震动的速度脉冲模型进行研究,讨论了典型模型的参数,在此基础上推荐了一种模型参数确定方法,并结合桥墩算例说明了速度脉冲效应对地震反应的影响及推荐模型参数的合理性.
Because of the existing of the near_fault ground motions with the velocity pulse effect, which has put new question for the seismic design of structure, the characters of the velocity pulse for the typical near_fault ground motions are analyzed. The velocity pulse model of the artificial near_fault ground motion is studied, and the parameters of the typical model are discussed. Based on these, we proposed a modified model and caculated the seismic response of pier to investigate the velocity pulse effect and the rationality of the recommended parameters.
出处
《北方交通大学学报》
CSCD
北大核心
2004年第1期11-16,共6页
Journal of Northern Jiaotong University
基金
国家自然科学基金资助项目(50278002)
关键词
土木建筑工程设计
近断层地震动
速度脉冲
桥墩
地震反应
civil architecture engineering design
near-fault ground motions
velocity pulse
pier
seismic response
