悬索结构计算中的关键问题探讨

Numerical models and comparison of cable element in cable structure

总结了目前索系结构分析中应用的索单元有限元模型的种类及其优缺点,通过不同类型的单元对小垂度和中等垂度的悬索问题进行了分析。结果表明,中等垂度内的悬索结构使用直线型单元进行分析可以满足工程要求,使用高精度单元意义不大。

Various of cable elements and corresponding advantages ＆ disadvantages are generalized and comparised with each other. Two typical exaples are analysed with different types of elements. The results demonstrate the straight rod element can be used to analyse cable structures of medium - scale sag ratio. The straight rod element can satisfy engineering requirement, multi - node elements are not important and necessary for the engineering computation of cable structures of medium - scale sag ratio.