在非线性分析的基础上,基于单层网壳结构的失稳机理,根据作者提出的失稳区域跟踪与判别方法,研究了两种不同形式的单层网壳在不同矢跨比时失稳区域的分布规律,以及失稳之前的弹性变形与失稳区域之间的关系。本文的结论对于网壳结构的稳定性能研究和应用有实际意义。 Based on the non-linear analysis, based on the instability mechanism of single-layer reticulated shell structure, two different forms of single-layer reticulated shells are found to be unstable at different span ratios based on the method of tracking and discriminating instability regions proposed by the author The distribution of the area, and the relationship between the elastic deformation before instability and the area of ​​instability. The conclusion of this paper is of practical significance for the research and application of the stability of the reticulated shell structure.