【摘要】 大跨度网壳结构应用广泛,将复形法和满应力法引入大跨度三圆弧面网壳结构的优化设计中,建立了网壳结构用钢量最低为目标函数,以网壳结构的上弦杆长、网壳厚度、结点个数为形状设计变量,以杆件截面面积为尺寸设计变量,以强度稳定等为约束条件,编制了相应的程序。最后通过算例验证了该方法与程序的可行性和有效性。更多还原

【Abstract】 TThe large-span shell is widely applicable.The complex method and full-stress method are introduced in the optimization design of large-span cylindrical latticed shell,which can establish the minimum weight objective function for structural optimization of double-layer shell.Taking upper cord dimension,thickness,and numbers of glob joint as well as the area of steel tube as design variants,strength and stability become constraints.And compiles programs is made.The feasibility and availability of this method is verified by analyzing examples.更多还原