斜拉索非线性分析的状态修正法

State Revision Method in Nonlinear Analysis of Stay Cable

Ernst公式常被用于计算斜拉索的弹性模量 ,但在某些情况下它会造成索力与索拉伸量之间关系的不闭合 .为此利用斜拉索外形与索力的协调方程 ,提出了一种适合斜拉索非线性分析的状态修正法 ,并由算例证明了此法的正确性。

The Ernst formula is usually used in calculating the elastic modulus of stay cable, but the closed relation between the tension and stretch of stay cable may be destroyed in some cases. By using the harmonic equation of the tension and shape of stay cable, a state revision method is presented for the nonlinear analysis of stay cable in this paper. The validity and practicality are shown by examples.