| 偏心拔压荷载下桩筏基础设计 |
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| 引用本文： | 张武,高文生,张科,刘金砺.偏心拔压荷载下桩筏基础设计[J].建筑科学,2006,22(5):61-65. |
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| 作者姓名： | 张武 高文生 张科 刘金砺 |
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| 作者单位： | 中国建筑科学研究院,地基基础研究所,北京,100013 |
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| 摘 要： | 以工程实例说明了大偏心拉压荷载作用下,桩筏基础设计的基本要点和方法,通过应用变刚度调平布桩和桩基后压浆技术,使所有工况下的荷载中心与反力中心的间距均满足规范要求,从而在技术合理结构安全的前提下降低桩筏基础工程量,达到优化设计目的.
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| 关 键 词： | 桩筏基础 概念设计 偏心荷载 拔压荷载 变刚度 后压浆 |
| 文章编号： | 1002-8528（2006）05-0061-05 |
| 收稿时间： | 2005-07-15 |
| 修稿时间： | 2005-07-152006-03-17 |
Concept Design of Piled Raft Foundation under Eccentric Tension-compression Loads |
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| ZHANG Wu,GAO Wen-sheng,ZHANG Ke,LIU Jin-li.Concept Design of Piled Raft Foundation under Eccentric Tension-compression Loads[J].Building Science,2006,22(5):61-65. |
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| Authors: | ZHANG Wu GAO Wen-sheng ZHANG Ke LIU Jin-li |
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| Affiliation: | Institute of Foundation Engineering, China Academy of Building Research, Beijing 100013, China |
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| Abstract: | In this paper, the basic key points of the design of piled raft foundation under eccentric tension-compression loads are discussed with project instances. By the changeable-stiffness pile arrangement and post-grouting technology of piled foundation, the spaces between the center of load and reaction under all operating conditions are adjusted to meet the requirements of codes. This technique reduces the construction volume of piled raft foundation under the premise of reasonable technology and structure safety to achieve the aim of design optimization. |
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| Keywords: | piled raft foundation concept design eccentric load tension-compression load changeable stiffness post-grouting |
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