摘要
对进行土-结构相互作用大比例模型试验的成层土场地,在获取各层土动力特性指标的基础上,土体采用等效线性模型,进行了不同加速度峰值和不同频谱特性地震动输入下的场地三维有限元地震反应分析,研究了场地土的地震放大效应和地基的滤波效应,为进一步研究土-结构相互作用奠定了基础.
To the layered soil of dynamic soil-structure interaction large-scale model test, commonly used equivalent linearity model is chosen to consider the non-linearity of soil and the dynamic characteristics of soil are obtained, then the earthquake response of three-dimensional finite element model is analyzed under different peak acceleration and different frequency spectrum features ground motion, and the seismic amplification of sites and soil filtering effect are studied. The present work lays a foundation for further research on soil - stricture interaction.
出处
《华东交通大学学报》
2007年第1期22-26,共5页
Journal of East China Jiaotong University
基金
江西省教育厅科学技术研究项目(赣教技字[2006]304号)
关键词
地震动
放大效应
滤波效应
ground motion
amplification
filtering effect
