钢筋砼结构材料非线性本构关系及有限元法研究

The Study of Material Nonlinear Constitutive Equation and Finite Element Method in the Analysis of Reinforced Concrete Structures

随着工程结构问题研究发展的深入和电子计算机的迅速发展,非线性有限元法在钢筋混凝土结构分析中得到了越来越广泛的应用。与线弹性有限元法相比,非线性有限元法具有"全过程仿真"的特点。本文对钢筋砼结构材料非线性本构关系及有限元法的特点、研究进展、存在问题做了分析和评价;重点探讨了非线性分析中所使用的材料本构方程、材料非线性有限元分析方程和有限元程序的编制。最后对上述研究进行了概括并提出了应用前景。

With rapid development of engineering structure problem study and computer, nonlinear finite element method in the analysis of reinforced concrete structures （ R. C. structures） have been more and more popular. Compared with linear elasticity finite element method, nonlinear finite element method is characterized by the entire proceeding simulating. Some comments on the characters, the researching progresses and the application in projects of material nonlinear constitutive equation and finite element method of R. C. structures in this paper. The study of material nonlinear constitutive equation and material nonlinear finite element analysis equation are emphasized. Finally, the R. C. structures finite element method is summarized and＇some suggestions of the method＇ s prospect are presented in this paper.