【摘要】 基于作者所编制的凯威特型单层网壳优化设计软件（ＳＳＳＡＯＰ）的优化设计方案，采用非线性有限元分析方法，并利用荷载增量迭代法对已优化设计的网壳进行非线性分析，计算其安全储备，得出可靠度指标，以此来评价该方案的优劣更多还原

【Abstract】 Based on the optimization design method of software "SSSAOP" developed by the authors for optimization design of monolayer network shell, employing the analysis method of finite elements, and further using the iteration with load increment, the nonlinearity of optimally designed network shell is analysed, the shell’s safety factor is determined, and the index of its reliability is obtained which is to be used to evaluate the quality of this scheme.更多还原