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本文提出一个超静定钢筋混凝土拱的非线性分析方法．这个方法从结构塑性分析的基本原理 出发，考虑了材料的非线性性能，采用了曲杆单元刚度矩阵，变刚度迭代法，杆件截面的数值积 分，断面最大弯矩值的计算以及应力迁移等方法对拱的受荷全过程进行了非线性分析。根据这个 计算方法，编制了相应的计算机程序并进行电算分析，其结果与实测值相比较，两者符合尚好。
This paper presents a nonlinear analysis method for statically indeterminate reinforced concrete arches. This method starts from the basic principle of structural plasticity analysis and considers the nonlinear properties of the material. The stiffness element matrix of the curved rod element, the variable stiffness iterative method, the numerical integration of the rod section, the calculation of the maximum bending moment of the section, and the stress migration are used. Methods The nonlinear analysis of the entire loading process of the arch is performed. According to this calculation method, the corresponding computer program was compiled and analyzed by computer. The results were in good agreement with the measured values.