The Basis Of. Raft Finite Element Analysis

In this paper, it describes the finite element model of the raft foundations and its implement in detail based on the finite element analysis method Yet it discusses how to apply the object-oriented to achieve practice preliminary.This paper starts with the present situation of the building software. And it introduces all kinds of internal and external practical software concerning raft foundation used in nowadays. Then it detailed summaries the analysis of the finite element method on the raft foundation model and realizes the section programming of the finite element analysis software of the raft foundations. Furthermore it provides the relevant flowchart. It also essentializes common numerical analytic method. It especially puts forward a quadratic "X" pattern for the automatic meshing algorithm.With the deep development of object-oriented, it gradually becomes a new tendency that the object-oriented is used in the analytic design of the finite element software. It will make good use of the existing software resources when using the language of the object-oriented as the managing of the FORTRAN programming. The author spends some time working on it and puts forward some fundamental classes.This paper puts the designing idea of the finite element software into the concrete projects. It compares some different subgrade models and gets some useful conclusions for the project practice. The practical quality of this idea is tested in this way.It will become the real programming with little revising of the flowchart in this paper. And it prepares a good foundation of the further development of the software in the future.