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本文采用有限元和边界元的联合解法探讨了建筑物上部结构、基础和地基的共同工作效应。地基部分,采用边界积分方程;上部结构则采用有限单元,根据二部分交接面上位移协调和力的平衡条件联合求解,在微机IBM—PC上编制了通用程序,计算所得与C.J.W.King和W.J.Larnacn用有限元等方法的结果一致。由于边界元在半无限体应用的优势,本方法具有计算精度高、运算速度抉和内存需求量少等优点。
In this paper, joint solutions of finite element and boundary element are used to explore the joint work effects of the superstructure, foundation and foundation of the building. In the foundation part, the boundary integral equation is used; in the upper structure, the finite element is used. According to the joint conditions of displacement coordination and force balance on the two parts of the interface, a general program is programmed on the computer IBM-PC. The calculation results are the same as CJWKing and WJLarnacn. The results using finite element methods are consistent. Because of the advantage of applying boundary elements in a semi-infinite body, this method has the advantages of high computational accuracy, low computational speed, and low memory requirements.