摘要
采用动力文克尔地基梁模型,推导了层状介质中桩单元的形函数矩阵和单元刚度矩阵。提出了计算层状介质中动力相互作用因子的方法。利用桩的动力阻抗和动力相互作用因子,建立了计算层状介质中群桩竖向和摇摆动力阻抗的简化方法。文末给出了算例。
The shape function matrices and the element stiffness matrices of the pile elements in layered media are derived by adopting the Beam - On - Dynamic - Winkler - Foundation model. The method for calculation of the dyntamic interation factors in layered media is developed. A simple method for calculating the dynamic vertical and rocking impedance of the pile groups in layered media is set up by using the dynamic impedance of single piles and the dynamic interaction factors. The numerical examples are given.
出处
《土木工程学报》
EI
CSCD
北大核心
1999年第5期62-70,共9页
China Civil Engineering Journal
基金
国家教委博士点基金!(编号:9253203)
关键词
土动力学
桩基础
动力反应
层状介质
群桩
soil dynamics, dynamic interaction, dynamic response of pile foundation