【摘要】 应用非线性稳定分析的基本原理,采用Newton-Raphson法结合弧长控制法计算结构的平衡路径,并以柱子为例,具体计算了3种不同初始几何缺陷下,构件非线性屈曲承载力的具体数值,分析了实际工程中对构件初始缺陷进行严格控制的必要性。更多还原

【Abstract】 The fundamental principle of analysis of nonlinear bulking stability is applied. The equilibrium path is obtained by using Newton-Raphson method and arc-length method. The load-carrying capacity of nonlinear bulking is calculated for a column with three types of initial imperfections, and the result indicates that the control of initial imperfection is necessary for all structures.更多还原