(同济大学土木工程学院 上海 200092)
【提要】 阐述了逆迭代法的基本过程与原理，并将其运用于预应力索结构的一类形状确定问题。逆迭
代法不仅能确定索结构预应力初始态的预应力分布，而且能确定索结构零状态的几何。通过算例可看出此方法的精确性与广泛适用性。
【关键词】 逆迭代法 形状确定 索结构
Inverse Iteration Method in Formfinding of Cable Structures/Li Guoqiang,Shen Liyuan,Luo Yongfeng(College of Civil Engineering,Tongji University,Shanghai 200092,China)
Abstract:The principle of the inverse iteration method is stated and the method is applied to one kind of formfinding process.The method can determinate not only the stress distribution in prestress state but also the initial geometry of structure in initial state.Numerical examples show the high accuracy and the universality of this method.
Keywords:inverse iteration method; formfinding; cable structures