基于周期约束的结构优化设计方法
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（1 同济大学建筑工程系，上海 200092；2 同济大学建筑设计研究(集团)有限公司，上海 200092）[摘要] 刚度较弱的建筑结构常常对地震作用和风荷载比较敏感。本文提出了一种基于优化准则方法的结构优化设计方法。该方法以构件尺寸为变量，在结构自振周期约束条件下，求解以最小结构重量为目标的最优解。算例表明，该优化算法有效、可靠，可以快速计算出构建单元的最优截面尺寸。[关键词] 结构优化；周期约束中图分类号：TU201.67 文献标识码：A 文章编号：1002-848X(2013)S1-0253-04通讯作者：董耀旻，Email:dongluoyaomin@qq.com。Structural optimization under period constraint for building structuresDong Yaomin1, Zhao Xin2, Tianyi Yu1(1 Department of Building Engineering, Tongji University, Shanghai 200092, China; 2 Tongji Architectural Design (Group) Co., Ltd., Shanghai 200092, China)Abstract: Building structures with weak stiffness vibration period are sensitive to seismic action and wind loading. This paper presents an optimization design method based on optimality criteria. This method takes the sizes of members as variables and the natural vibration period as constraint, aiming to find the optimal solution of minimum weight of building structure.Keywords: structural optimization; period constraint
