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将有限元法引入结构稳定极限荷载分析中，从分析梁单元非线性几何方程入手，由其切线刚度矩阵的一般形式推导建立几何非线性劲度矩阵的具体形式，并实现对几种常见荷载的等效处理．根据分析结果，运用圆弧长法的数学策略，设计了计算程序，算例表明该程序运行结果良好．
The finite element method is introduced into structural stability limit load analysis. Starting from the analysis of the nonlinear geometric equations of beam elements, the specific form of the geometric nonlinear stiffness matrix is deduced from the general form of its tangent stiffness matrix, and the realization of several common loads is realized. Equivalent processing. According to the results of the analysis, using the mathematical method of the arc length method, a calculation program was designed. An example shows that the program runs well.