摘要
将地震作用下土体的反应看作是随机过程 ,结合可靠性分析理论 ,在考虑了地震荷载作用期间土体超孔隙水压力产生及消散所引起再固结变形的基础上 ,建立了一个基于累积损伤模型的土体反应分析方法 .对上海地区典型的软土地层进行了计算分析 .
Combining the random process of seismic response with reliability analysis theory,a method for calculating the dynamic response and the settlement under earthquake loading is proposed based on the accumulated damage model.In this method,the failure of soil under random dynamic loading is taken as the result of damage accumulation of each grade of stress.The growth and dissipation of pore pressure under earthquake loading are also considered.A typical calculation example shows that this method can be used for the application of dynamic analysisw of saturated soft clay foundation under earthquake effect.
出处
《武汉交通科技大学学报》
2000年第6期597-601,共5页
Journal of Wuhan University of Technology(Transportation Science & Engineering)
基金
国家自然科学基金重点资助项目(批准号:59738160)。
关键词
随机过程
动力响应
累积损伤
软土地层
random process
dynamic response
accumulated damage
soft clay foundation
