摘要
通过Midas Civil有限元软件建立基于m法桩土作用有限元模型及不考虑桩土作用的两种有限元模型,对高低墩曲线梁桥的地震响应进行线性时程分析,分析了桩土作用对高低墩曲线梁桥地震响应的影响.结果表明:在桩土作用下,结构的自振周期变长,各个振型的参与质量较未考虑桩土效应时更加分散;桥墩顶部位移较未考虑桩土作用时增大,桥墩的内力响应存在复杂性,但是考虑桩土作用后两个桥墩的内力差距得到减小.
By using Midas Civil finite element software,a finite element model based on M method and a finite element model are established taking no accont of pile-soil interaction.The linear time history analysis of seismic response of curved girder bridges with high and low piers is carried out,and the effect of pile-soil interaction on seismic response of curved girder bridges with high and low piers is analyzed.The results show that under the action of pile-soil,the natural vibration period of the structure is longer,and the quality of each mode of vibration is more dispersed than that without considering the effect of pile-soil;the displacement of the top of the pier is larger than that without considering the effect of pile-soil,and the internal force response of the pier is complicated,but the internal force gap between the two piers is reduced when the effect of pile-soil is taken into account.
作者
陈磊
邓通发
李帅
常前永
CHEN Lei;DENG Tongfa;LI Shuai;CHANG Qianyong(School of Architectural and Surveying&Mapping Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China)
出处
《江西理工大学学报》
CAS
2019年第5期15-21,共7页
Journal of Jiangxi University of Science and Technology
基金
江西省教育厅科技资助项目(GJJ160620)
关键词
曲线梁桥
M法
高低墩
地震响应
时程分析
curved girder bridge
m method
high and low piers
seismic response
time history analysis
