摘要
介绍了对上海市区的典型软土地铁车站结构进行的振动台模型试验 ,及根据试验数据建立的地铁车站地震响应的分析理论和计算方法进行的研究及其取得的成果 .内容包括模型试验的种类及其目的、模型土动力特性的确定及其模拟方法、模型箱构造的特点及其模拟技术、动力分析的计算原理与方法 ,以及对试验数据进行的拟合分析及其结果 .采用拉格朗日差分法对振动台模型试验进行了数值拟合分析 ,计算结果表明土体和结构模型的加速度响应 .
This paper describes not only the shaking table test on subway stations in soft soil,but the research and achievements of the analysis theory and numerical method about the seismic behavior of station structures.What is presented in the paper includes the types and targets of model test;the method of determining and simulating the dynamic properties of model soil; the style of model box and the method of simulating it;and the theory and method of dynamic numerical simulation of model test.The numerical simulation of model test is performed based on the Lagrangian difference algorithm.It is shown that the acceleration history of soil and station structure,the dynamic soil pressure on the structure and the strain of structure is consistent with the results of the test.
出处
《同济大学学报(自然科学版)》
EI
CAS
CSCD
北大核心
2003年第10期1135-1140,共6页
Journal of Tongji University:Natural Science
基金
上海市重点学科建设资助项目
关键词
软土地铁车站
振动台模型试验
地震响应
动力数值方法
subway station in soft soil
shaking table test
seismic behavior
dynamic numerical method