【摘要】 本文结合二汽试车场单层穹顶网壳屋盖这一工程实例，首先对方案阶段可能采用的两种网格划分，即联方网格穹顶和凯威特穹顶的稳定承载力作了比较。其次对决定采用的联方网格型方案进行了理想情形及具有初始安装缺陷情形下的弹性及弹塑性全过程分析。最后给出了该结构的稳定设计安全储备，并对网壳设计提出了一些建议。更多还原

【Abstract】 Taking a single-layer lattice dome roof structure for a car test room with a diameter of 40m as an example,the non-linear behavior and ultimate loading capacity of two kinds of structures,i.e.the lamella dome and kiewitt dome were first analyzed in this paper.Then the elastic and elastoplastic analyses of the stability behavior for the selected lamella dome with and without initial geometric imperfection have been examined and the stability safety factor was given. Lastly,some suggestions for the structural design have been proposed.更多还原