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

• Geotechnical Engineering • Previous Articles     Next Articles

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. 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

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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

CLC Number: 

  • TU 473.1
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