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利用抗震结构的多目标优化设计理论，同时考虑延性及结构自振周期，对钢筋混凝土结构造价最低和延性最好的两个目标函数进行优化设计，按照现行的《混凝土结构设计规范》（ＧＢＪ１０－８９）及《建筑抗震设计规范》（ＧＢＪ１１－８９）建立了数学模型；并根据ＧＢＪ１１－８９给出的４类场地的特征周期，计算了钢筋混凝土框架结构的算例。结果表明，在抗震结构优化设计中，同时考虑结构的延性和结构的自振周期有利于结构的抗震。
Using the multi-objective optimal design theory of seismic structures, taking into account the ductility and the period of natural vibration of the structure, the two objective functions with the lowest cost and the best ductility of the reinforced concrete structures are optimally designed, in accordance with the current “Specifications for Design of Concrete Structures” (GBJ10- 89) and the “Code for Seismic Design of Buildings” (GBJ11-89) established a mathematical model; and based on the characteristics cycle of the four types of sites given in GBJ11-89, an example of a reinforced concrete frame structure was calculated. The results show that considering the structural ductility and the natural vibration period of the structure in the optimal design of the seismic structure, it is beneficial to the seismic resistance of the structure.