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本文提出了一个新的砼在二向受力下破坏准则，该准则和实际符合较好。分析选择了合理的钢筋砼结构非线性分析方法，编制出钢筋砼结构非线性有限元程序ＲＣＦＥＭ。用该程序分析了东江水电站坝后引水背管（钢村一钢筋砼结构）的两个模型结构，计算结果同模型试验结果吻合良好。
This paper presents a new failure criterion of concrete under two-direction force, which is in good agreement with the actual situation. Based on the analysis and selection of reasonable non-linear analysis method of reinforced concrete structure, the nonlinear finite element program RCFEM of reinforced concrete structure was prepared. The program analyzes the two model structures of the diversion dorsal pipe (Steel Village-Reinforced Concrete Structure) of the dam after Dongjiang Hydropower Station. The calculated results are in good agreement with the model test results.