【摘要】 将复形法引入大跨度双层柱面网壳结构的优化设计中,建立了柱面网壳结构目标函数,以网壳结构的网格尺寸、网壳厚度、网壳矢高为设计变量,以杆件的强度和最小截面尺寸为约束条件,编制了相应的程序,并进行了三圆弧网壳结构外形尺寸多种方案的优化分析,得出跨度为87m三圆弧网壳的最优网格尺寸和最优网壳厚度。更多还原

【Abstract】 It proposed that complex method could be used in the optimization design of double-layer cylindrical latticed shell,which establishes the minimum weight objective function,which takes grid size,the vault thickness,rise highness as design variables and constraints of strength and minimum cross—section.Through compiling programs and 0ptimization analyzing samples,It obtains the optimal grid size and vault thickness in the 87 meter span of cylindrical shell.更多还原