| 纵横向荷载作用下桩的工作性状研究 |
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| 引用本文： | 皇甫明,王幼青,张军. 纵横向荷载作用下桩的工作性状研究[J]. 哈尔滨工业大学学报, 2003, 35(6): 743-746 |
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| 作者姓名： | 皇甫明 王幼青 张军 |
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| 作者单位： | 1. 北方交通大学,土木工程学院,北京,100044
2. 哈尔滨工业大学,土木工程学院,黑龙江,哈尔滨,150090 |
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| 摘 要： | 为了了解承受纵向荷载和横向荷载共同作用的桩的工作性能，通过一系列模型桩试验，分析了水平荷载对竖向承载桩的桩顶沉降变形的影响，以及竖向荷载对横向承载桩的桩顶水平位移和桩身弯矩的影响．此外，运用三维有限元的方法，考虑了土体的非线性(Drucker-Prager模型)力学性能，以及在桩与土界面处设置接触面单元来考虑桩与土的滑移变形和开裂，对模型桩进行了模拟计算分析．试验及模拟分析均表明，竖向荷载对水平承载桩的影响较小，而水平荷载对竖向承载桩的影响是显著的．
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| 关 键 词： | 桩基 工作性状 水平载荷 竖向载荷 试验模型 沉降变形 水平位移 弯矩 接触面单元 Drucker－Prager模型 |
| 文章编号： | 0367-6234(2003)06-0743-04 |
| 修稿时间： | 2002-07-12 |
Behavior of pile under combined axial and lateral loading |
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| HUANG Fu ming ,WANG You qing ,ZHANG Jun. Behavior of pile under combined axial and lateral loading[J]. Journal of Harbin Institute of Technology, 2003, 35(6): 743-746 |
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| Authors: | HUANG Fu ming WANG You qing ZHANG Jun |
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| Affiliation: | HUANG Fu ming 1,WANG You qing 2,ZHANG Jun 2 |
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| Abstract: | In order to study the behavior of a single pile under combined axial and lateral loading, a series of model tests were run to investigate the effects of lateral loading on axial pile top displacements and the influence of axial loads on the lateral pile top deflections and bending moment, and the response of a single pile was analysed using three dimensional finite element analysis with nonlinear soil behavior (Drucker Prager model) and pile soil contact elements representing slippage and pile soil separation. Both tests and simulating analysis show that the effects of axial loading on the lateral bearing characteristics of pile is small and the influence of lateral loads on the axial pile is remarkable. |
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| Keywords: | model tests simulate analysis combined axial and lateral loading nonlinear property interface element load deformation curve |
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