(招商局地产控股股份有限公司  深圳 518067)
［提要］  基于共同作用理论，结合实际工程，采用有限元法对核心筒下桩承台基础的荷载分担比例及受力特点进行了较为详细的计算和分析。依据分析得到的规律对常规设计方法进行了优化。证明考虑上部结构承台桩土共同作用来设计核心筒下桩承台基础是合理的，也是必要的。可供类似工程设计参考。
［关键词］  核心筒  桩承台基础  共同作用  荷载分担  优化设计  整体弯矩  有限元分析
Optimizing Design of Pileraft Foundation Under Core Tube Based on Cooperative Effect Theory/Jiang Shan(China Merchants Real Estate (Shenzhen)Co.,LTD.,Shenzhen 518067,China)
Abstract:Based on the theory of cooperative effect,combining with a practicality engineering, the participance in load and the loadingcarrying characteristic of the pileraft foundation under core tube are analyzed by finite element method. It has proved to be reasonable and necessary to design the pileraft foundation under core tube considering the theory of upside structureraftpilesoil interaction, and the results can be reference to foundation design of similar engineering.
Keywords:core tube; pileraft foundation; interaction; participance in load; optimizing design; integral moment