桩(土)与承台组合结构罚有限元分析

桩(土)与承台组合结构罚有限元分析 English Version

1.Department of Geotechnical Engineering Tongji University Shanghai 200092 China 2.Pudong Road Bridge Col. Ltd. Shanghai 201203 China

摘要: 采用板模拟承台、实体单元模拟桩与土 ,通过建立连接板单元与三维实体单元的罚单元解决了两个不同单元连接问题 ,数值检验证明所建罚单元能有效确保不同单元连接处的位移协助问题。在此基础上计算了带台单桩的蠕变沉降、桩身轴力与桩侧摩阻力 ,得到了一些有益的结论
- 板单元 /
- 三维实体单元 /
- 罚单元
Abstract: The 3DFEM software has been developed for pile foundation. The solid element has been employed to simulate soil and pile,and plate element is used to simulate platform of pile foundation.Penalty element is used to guarantee the harmony of displacement on the nodes which belong to not only solid element but also plate element. The numerical check has proved that the built penalty element is quite effective. On the above base, the software has been employed to analyze the creep settlement, axial stress and friction stress of pile foundation,and some useful conclusions have been drawn.
- plate element /
- solid element /
- penalty eleme