Research purposes: As the structure system of the Hongqiao integrated transport center is complex, the reaction forces of the column base is much uneven and the difference of the rigidites of the foundation and structure is small,the traditional method can not reflect the actual load bearing situation. In this paper, the comparation and analyses of the traditional analysis method and calculation method for the interaction and the calculation results obtained with two method and the their reasons are made to instruct the design of the similar project.Research conclusions: The interaction method that considers the mutual influence of foundation and structure should be used for the structure with the small difference in rigidity on the base and top and largely uneven axial force of the column. The influence of the foundation on the structure is related to the stiffness of the foundation and the structure. The stronger the stiffness of the foundation is, the lower the influence is . For the structure of big column net along with filling column net used in the large integrated transport center, the influence of the deformation of the top part can not be ignored.%研究目的:针对虹桥综合交通枢纽结构体系复杂、柱底反力极不均匀、基础与结构刚度相差不大的实际情况,传统计算方法已不能反映结构的实际受力状态,特别是对上部结构影响很大,本文对基础与结构的共同作用分析方法与传统计算方法进行对比,分析结构和基础的计算结果及原因,以期找出适当的方法指导类似工程的设计.研究结论:对于基础与上部结构刚度差别不大,柱轴力极不均匀的结构,应采用考虑上部结构与基础的相互影响的共同作用方法进行分析.基础对结构的影响程度与基础、结构的相对刚度有关,基础刚度越大,影响越小.对于目前综合交通枢纽中大柱网加填充柱网的结构来说,基础的变形对上部结构的影响是不能忽略的.
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