在偶然荷载作用下框架结构的多目标优化设计

The multi-objective optimal design on frame structure under the function of accidental loading

根据现行的混凝土结构设计规范和实际受力状态建立数学模型,以结构的造价最小、应变能最大两个相互矛盾的函数为多目标函数,考虑强度、刚度、挠度等为约束条件,对偶然荷载作用下的框架结构进行了优化,使结构的可靠性和经济性达到统一。

According to the current concrete structure design criterion and the actual load bearing to build a mathematical models. As the small- est cost of structure, the biggest strain capacity, these two contradictional functions to be the multi-objective functions. To consider the inten- sity, stiffness, flexibility and so on to be the constraint condition. Optimization of the frame structure under the function of accidental loading and attaining the unity of structure＇s reliablity and economy.