| 控制差异沉降的复合桩基设计方法及有限元分析 |
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| 引用本文： | 乔志炜,黄广龙. 控制差异沉降的复合桩基设计方法及有限元分析[J]. 苏州科技学院学报(工程技术版), 2005, 18(4): 57-61 |
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| 作者姓名： | 乔志炜 黄广龙 |
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| 作者单位： | 南京工业大学,土木工程学院,江苏,南京,210009 |
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| 摘 要： | 目前以变形为控制条件的复合桩基设计理论是桩筏基础研究中的热点问题，而人为合理的调整地基土刚度和桩基支承刚度的方法是控制复合桩基差异沉降的有效手段之一。在考虑上部结构、基础和地基共同作用的基础上，利用有限元方法对竖向荷载作用下复合桩基的沉降进行了计算分析，讨论了设置变刚度垫层、改变桩长、桩径、桩距及布桩方式对基础差异沉降和内力的影响，对实际工程设计具有指导意义。
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| 关 键 词： | 复合桩基 差异沉降 共同作用 变刚度 有限元法 |
| 文章编号： | 1672-0679(2005)04-0057-05 |
| 修稿时间： | 2005-09-15 |
Finite Element Analysis for Composite Pile Foundation to Control the Differential Settlement |
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| QIAO Zhi-wei,HUANG Guang-long. Finite Element Analysis for Composite Pile Foundation to Control the Differential Settlement[J]. Journal of University of Science and Technology of Suzhou:Engineering and Technology, 2005, 18(4): 57-61 |
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| Authors: | QIAO Zhi-wei HUANG Guang-long |
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| Abstract: | For composite pile foundation,differential settlement controlling becomes more and more important now.And adjusting the rigidity of subsoil and piles is one of the significant ways to make the settlement balanced.Considering the interaction on superstructure-pile foundation-ground,the finite element method is used to calculate the settlement in this paper,showing how the changing stiffness of piles and the existence of variable stiffness cushion influence the differential settlement,which may be a guide to the design of actual projects. |
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| Keywords: | composite pile foundation differential settlement interaction variation rigidity finite element method |
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