Nonlinear Interaction Analysis On The Structure-Foundation-Soil System

With the rapid development of high building, the problem of interaction between structure and foundation has been thought much of in the project for recent a few decades. In fact, this problem is a problem of structure and limitless field.The coupling method of finite and infinite is presented in this thesis to solve material nonlinear problem of limitless field, by combining with the principle of finite elements with that of infinite elements as well as elastic-plastic incremental theory. Furthermore, a large-scale calculating program for solving plane nonlinear problem is developed in FORTRAN, which use five-node, six-node mapping infinite elements coupling with their corresponding isoparametric finite elements.Finally, combined with project example, this thesis got conclusions as follow:1 Through the calculate model, which disperse the structure and anear area with finite elements and distant area with infinite elements, we can get...