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本文提出一个简便方法:将地基视为弹性半空间体,用解析法求出地基的刚度矩阵;同时将框架连续化,求出其等效刚度;然后根据整体结构的微分方程,用最小二乘配点法进行计算。文中分别研究了以下三种计算模型:①不考虑框架刚度;②只考虑框架的剪切片刚度;③同时考虑框架的剪切刚度和柱的轴向刚度。并附算例以资比较。
This paper proposes a simple method: consider the foundation as an elastic half-space body, find the stiffness matrix of the foundation by analytical method; at the same time, the frame is continuous and the equivalent stiffness is obtained; then according to the overall structural differential equation, the least squares are used. Collocation method for calculation. In the paper, the following three calculation models are studied respectively: (1) without considering the frame stiffness; (2) only considering the shear stiffness of the frame; (3) considering the shear stiffness of the frame and the axial stiffness of the column. With examples to compare.