在竖向荷载作用下桩-土数值模拟与试验验证  

Numerical Modeling of Signle Pile Subjected to the Vertical and Test Proof

作　　者：段文峰[1] 金菊顺[1] 佟德生[1] 

机构地区：[1]吉林建筑工程学院土木工程系,长春130021

出　　处：《吉林建筑工程学院学报》2002年第1期11-14,共4页Journal of Jilin Architectural and Civil Engineering

摘　　要：回顾和总结了平面接触问题经典无厚度Goodman界面单元法的主导思想 ,针对竖向受力承载单桩的Q -S曲线数值分析模型 ,给出了一种轴对称等参无厚度界面元 ,以模拟两者的相互接触界面 .利用所建立的桩 -土数值模型 ,通过模型桩模拟分析 ,证明模拟分析理论与模型试验相一致 .The paper has reviewed the method of classical Goodman joint element of zero thickness.With special regard to the interface modeling in the numerical analysis of Q-S curve of single pile subject to the vertical load,a new kind of axisymetric iso-parametric interface element of zero thickness has been derived.The above research has been exercised in the numerical analysis,which was verified by the experimental model analysis on the single pile-soil system.the research work in the paper indicates that the proposed analysis method is provided a simple method to determine load bearing capacity of the single pile for practical problems,or is combined with other design methods easily to determine load bearing capacity of the single pile.

关 键 词：竖向荷载 桩-土相互作用 轴对称等参无厚度界面元 单桩Q-S曲线 试验验证 数值模拟 

分 类 号：TU473.1[建筑科学—结构工程]