摘要
以某铁路隔震曲线梁桥为例,基于有限元分析软件ANSYS,建立了考虑桩土相互作用的全桥有限元分析模型,并根据场地条件选取了7条典型地震波,对该桥进行了地震响应时程分析。对不同地震激励下的地震响应结果进行分析比较,得出坚硬场地条件下考虑桩土作用时,基础刚度对隔震曲线梁桥地震响应的一些影响规律。
In this paper a vibration-isolated railway curved beam bridge is taken as an example to study the effects of foundation elastic stiffness. Considering pile-soil interaction, finite element model of the bridge was established based on finite element software ANSYS and time-history analyses of seismic responses were carried out under 7 typical seismic waves. After analyzing and comparing the results of seismic responses, some influence laws of foundation elastic stiffness on seismic responses of curved beam vibration-isolated bridge were obtained under hard soil condition.
出处
《铁道标准设计》
北大核心
2011年第10期62-64,68,共4页
Railway Standard Design
关键词
铁路曲线梁桥
地震响应
基础弹性刚度
隔震
Railway curved beam bridge
Seismic response
Foundation elastic stiffness
Vibration-iso- lated
