弹性承台─高桩基础的内力和变形  

INTERNAL FORCE AND DEFORMATION OF HIGH PILE FOUNDATION WITH ELASTIC PILE CAP

作　　者：刘利民 王建华[2] 陈竹昌[3] 刘云云[3] 

机构地区：[1]上海建工集团总公司 [2]上海交通大学 [3]同济大学

出　　处：《土木工程学报》2000年第4期80-87,共8页China Civil Engineering Journal

基　　金：国家教委博士点基金资助项目

摘　　要：以某大桥辅航道通航孔桩基础为工程原型，根据“ｍ法桩－弹性承台”计算方法编制了计算程序，通过大量的计算，研究了承台厚度、桩的布置形式、桩的出露长度等因素对弹性高承台─桩基础内力和变形的影响，揭示了各种因素对弹性高承台─桩基础内力和变形的影响都是通过改变承台刚度来实现的，并通过模型试验验证了这一规律。工程实践中，按照弹性承台来设计更加科学合理，符合实际情况。The high pile foundation of a bridge designed by the 'm' method is proposed. The pile cap is assumed as an elastic body. The internal force and deformation of a high pile foundation with a pile cap are effected by many factors. Those are the thickness of pile cap, pile arrangement, and exposed pile length. It was found that all these factors were influenced by the ri- gidity of a pile cap. It was also verified by the model test. It is more reasonable and feasible to regard the pile cap as an elas- tic body. Finally, there are some useful conclusions.

关 键 词：弹性承台 桩 布置形式 内力 变形 桩基 高桩 

分 类 号：TU473.1[建筑科学—结构工程]