超高层建筑桩筏基础的桩顶反力计算研究

›› 2011, Vol. 32 ›› Issue (4): 1138-1142.

超高层建筑桩筏基础的桩顶反力计算研究

巢斯¹，赵锡宏²，张保良²，姜文辉¹，孔娟³，肖俊华⁴，袁聚云³

1. 同济大学建筑设计研究院，上海 200092；2. 上海新华国际岩土技术有限公司，上海 200092； 3. 同济大学地下建筑工程系，上海 200092；4. 山东建筑大学土木工程学院，济南 250100

收稿日期:2010-02-09 出版日期:2011-04-10 发布日期:2011-04-29
作者简介:巢斯，男，1956年生，硕士，教授级高工，总工，主要从事高层建筑和基础设计与研究

Study of computation of load on pile top of piled raft foundation for superhigh buildings

CHAO Si¹，ZHAO Xi-hong²，ZHANG Bao-liang²，JIANG Wen-hui¹， KONG Juan³，XIAO Jun-hua⁴，YUAN Ju-yun³

1. Architectural Design & Research Institute of Tongji University, Shanghai 200092, China; 2. Shanghai Xinhua International Geotechnical Engineering Co., Ltd., Shanghai 200092, China; 3. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 4. School of Civil Engineering, Shandong Architectural University, Jinan 250100, China

Received:2010-02-09 Online:2011-04-10 Published:2011-04-29

摘要/Abstract

摘要：

根据上海高88层、筏板厚度为4 m的金茂大厦和高101层、筏板厚度为4.5 m的上海环球金融中心桩筏基础的实测沉降资料，论证超高层建筑的桩筏基础为弹性体。对以上两幢超高层建筑和正在建造中的高121层、筏板厚度为6 m的上海中心大厦的桩筏基础，采用偏心受压公式和高层建筑与地基基础共同作用理论方法（混合法）进行详细对比计算，论证按弹性体计算桩顶反力的合理性，阐明《建筑桩基技术规范》（JGJ 94 – 2008）的3.1.8条的正确性和合理性。期望能够改变过去按偏心受压公式计算桩顶反力的传统观念，提高设计水平。

关键词: 超高层建筑, 桩筏基础, 桩顶反力

Abstract:

Based on the settlement data of the piled raft foundation in 88-storey, 4 m thick raft of Jinmao Building and 101-storey, 4.5m thick raft of Shanghai World Financial Center (SWFC), it is demonstrated that piled raft foundation is a real elastic body. Meanwhile, the eccentric compression formula and method on interaction between superstructure and foundation (mixed method) are used to compute the load on pile top of piled raft foundation for two superhigh buildings just mentioned and 121-stroey, 6 m thick raft of Shanghai Tower which is under construction and compare each other in detail. The computed results have shown that the mixed method used is feasible and reasonable. It is hoped that the article 3.1.3 in China Technical Code for Building Pile Foundations (JGJ 94 – 2008) can change the traditional conception to use the eccentric compression formula for computing the load on pile top of piled raft foundation.

Key words: superhigh building, piled raft foundation, load on pile top

中图分类号:

TU 473.1

巢斯，赵锡宏，张保良，姜文辉，孔娟，肖俊华，袁聚云. 超高层建筑桩筏基础的桩顶反力计算研究[J]. , 2011, 32(4): 1138-1142.

CHAO Si1，ZHAO Xi-hong2，ZHANG Bao-liang2，JIANG Wen-hui1，. Study of computation of load on pile top of piled raft foundation for superhigh buildings[J]. , 2011, 32(4): 1138-1142.

参考文献

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