基于广义位移模型的大直径桩体结构单元内力分析  

ANALYSIS OF THE INTERNAL FORCES OF LARGE-DIAMETER PILE ELEMENT BASED ON THE GENERALIZED FREEDOM METHOD

作　　者：廖雄华[1] 王蕾笑 周健[1] 

机构地区：[1]同济大学地下建筑与工程系,上海200092 [2]长春市政工程设计院,长春130041

出　　处：《工业建筑》2001年第10期34-36,53,共4页Industrial Construction

基　　金：国家自然科学基金重点资助项目 (编号 :5 973 8160 )

摘　　要：以广义位移法数值模型为基础 ,给出了桩 土相互作用数值分析有限元程序中大直径桩体结构单元的内力分析算法。对典型工况下大直径单桩的内力数值分析表明 ,大直径桩体结构的几何尺寸以及梁柱结构特性对桩 土相互作用的力学机制影响很大 。A scheme for the computation of internal forces of large diameter pile has been devised in this paper on the basis of the generalized displacement model. The numerical results of large diameter pile under typical load case suggest that the dimension and structural mechanical characteristic of the large diameter pile can exert very strong influence on the pile soil interaction, hence it is an nonnegligible factor that should be taken seriously in the design of the pile foundation.

关 键 词：大直径桩 FEM 广义位移法 内力 

分 类 号：TU473.12[建筑科学—结构工程]