循环荷载作用下软粘土地基的累积变形  

Accumulative Deformation of Soft Clayey Foundation under Cyclic Loads

作　　者：刘振纹[1] 秦崇仁[1] 王建华[1] 赵晓艳[2] 

机构地区：[1]天津大学建工学院,天津300072 [2]河北工业大学土木工程学院,天津300132

出　　处：《中国港湾建设》2004年第6期31-34,共4页China Harbour Engineering

基　　金：国家自然科学基金资助项目(50379035)

摘　　要：文章研究了循环荷载作用下软土地基的循环累积变形特性,将其等效为静力蠕变过程,采用拟静力的方法,建立了弹塑性的循环蠕变模型并提出了计算方法。以桶形基础为例,对循环荷载作用下软粘土地基的累积变形进行了计算、分析。The characteristics of cyclically accumulated deformation of soft soils under the action of cyclic loads are studied,which are equalized as a process of static creep.A pseudo-static elasto-plastic cyclic creep model is established and a calculation method is proposed.Taking a bucket foundation as an example,the cyclically accumulated deformation of soft soils under the action of cyclic loads in calculated and analyzed.

关 键 词：循环荷载 累积变形 等效静力蠕变 桶形基础 

分 类 号：TU471.8[建筑科学—结构工程]