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在上部结构与地基基础的共同作用分析中,如何正确估计上部结构的刚度和选择合理的地基模型是很重要的。本文就框架结构、基础、地基三个组成部分之间的共同作用机理进行了详细的探讨。对多层多跨结构与地基的共同作用进行了全面的分析,并与国外相应的研究成果作了对比。本文还选用邓肯一张非线性模型,测定了上海各典型上层的计算参数,进行了多层多跨结构与非线性地基的共同作用的初步分析,取得了一些有益的结果。
In the analysis of the interaction between the superstructure and foundation, it is very important to correctly estimate the stiffness of the superstructure and choose a reasonable foundation model. This article discusses in detail the mechanism of the interaction between the three components of the frame structure, foundation, and foundation. A comprehensive analysis of the combined effects of multi-storey multi-span structures and foundations was conducted and compared with corresponding research results from abroad. This paper also selects a nonlinear model of Duncan, determines the calculation parameters of typical upper layers in Shanghai, and conducts a preliminary analysis of the combined effects of multi-layer multi-span structure and nonlinear foundation, and has obtained some beneficial results.