基于周期約束的結(jié)構(gòu)優(yōu)化設(shè)計方法
董耀旻1 ，趙 昕2，余天意1
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（1 同濟大學(xué)建筑工程系，上海 200092；2 同濟大學(xué)建筑設(shè)計研究(集團)有限公司，上海 200092）[摘要] 剛度較弱的建筑結(jié)構(gòu)常常對地震作用和風(fēng)荷載比較敏感。本文提出了一種基于優(yōu)化準則方法的結(jié)構(gòu)優(yōu)化設(shè)計方法。該方法以構(gòu)件尺寸為變量，在結(jié)構(gòu)自振周期約束條件下，求解以最小結(jié)構(gòu)重量為目標的最優(yōu)解。算例表明，該優(yōu)化算法有效、可靠，可以快速計算出構(gòu)建單元的最優(yōu)截面尺寸。[關(guān)鍵詞] 結(jié)構(gòu)優(yōu)化；周期約束中圖分類號：TU201.67 文獻標識碼：A 文章編號：1002-848X(2013)S1-0253-04通訊作者：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
