节点文献
地震动的空间变化对连续刚构桥随机地震反应分析
Random Seismic Response Analysis of Continuous Rigid-framed Bridge for Spatially Variant Ground Motion
【摘要】 采用随机振动理论与有限元技术相结合的方法,以基岩随机地震作为输入,对考虑桩-土相互作用的连续刚构桥进行了水平随机地震反应分析;分析行波效应、部分相干效应和局部场地效应对连续刚构桥地震响应的影响;获得了连续刚构桥的墩顶的位移功率谱响应以及各墩墩底的弯矩均方差和功率谱密度曲线。
【Abstract】 The random seismic response of continuous rigid-ramed bridge are investigated.The analysis method is based on the random vibration theory and finite element method,and the stochastic earthquake motion at bedrock is applied to the primitive input;The spatial varying ground motion effect including the wave passage effect,the ground motion coherence effect and local-spatial variation effect were studied in detail;The response power density of pier and standard deviation of piers are calculated.This study may be a reference for the engineering design.
【关键词】 连续刚构桥;
行波效应;
随机地震反应;
桩—土相互作用;
【Key words】 continuous rigid-frame bridge; the effects of traveling wave; random seismic response; pile-soil interaction.;
【Key words】 continuous rigid-frame bridge; the effects of traveling wave; random seismic response; pile-soil interaction.;
- 【文献出处】 公路工程 ,Highway Engineering , 编辑部邮箱 ,2008年02期
- 【分类号】U442.55
- 【被引频次】5
- 【下载频次】84