摘要
本文采用动力文克尔地基粱模型,在求得有限长桩运动微分方程通解的基础之上,导出了层状土中桩单元复刚度矩阵.提出了计算层状土中单桩动力阻抗的方法.本文方法具有单元划分简单,输入数据少,可以方便地处理不同约束条件和计算桩截面内力等优点.可以用于群桩动力阻抗及桩身内力的计算,也可以进行桩—土—桩运动相互作用分析.
The Beam-on-Dynamic-Winkler-Foundation model is used to derive the complex stiffness matrix of pile elements in layered soil, which is based on the general solution of the differential motion equation of a pile with the finite length obtained in this paper. The method for the calculation of the dynamic impedances of a single pile in layered soil is developed. The method has the advantages of being simple in dividing elements, less in inputting data and convenient in dealing with various boundary conditions and calculating internal forces of piles. It may be used for the calculation of the dynamic impedances and internal forces of pile groups, and also for the analysis of the kinematic pile-soil-pile interactions.
出处
《土木工程学报》
EI
CSCD
北大核心
1998年第5期48-55,共8页
China Civil Engineering Journal
