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(1 中衡設計集團股份有限公司, 蘇州 215123;2 東南大學土木工程學院, 南京 210096)
摘要: 超高層結構設計中指標往往具有相關性,通過手動調(diào)整計算模型以實現(xiàn)結構設計的合理性和經(jīng)濟性效率較低. 通過 Grasshopper 軟件平臺二次開發(fā),編制了超高層結構參數(shù)化建模模塊,通過 OAPI 接口調(diào)用 ETABS 進行結構自動化分析設計,并采用遺傳算法實現(xiàn)了專項優(yōu)化設計. 針對采用基本遺傳算法進行結構體量大、變量多、約束條件復雜的參數(shù)化設計時計算耗時長的特點,采取多項措施對算法進行了改進,有效提高了優(yōu)化效率和穩(wěn)定性.以結構質量為優(yōu)化目標,將框架柱與剪力墻截面尺寸作為主要設計參數(shù)對某超高層結構進行參數(shù)化設計. 結果表明,優(yōu)化后的超高層結構在罕遇地震作用下具有良好的抗震性能,且結構總質量明顯降低,優(yōu)化效果顯著,驗證了本文參數(shù)化技術的可行性與可靠性.
關鍵詞: 參數(shù)化技術;超高層結構;Grasshopper 軟件;改進遺傳算法;動力彈塑性分析
中圖分類號:TU318+. 1 文獻標志碼:A 文章編號:1002-848X(2022)20-0029-09
DOI:10.19701 / j.jzjg.ZJ220006
Application of parametric technology in the design of super high-rise structures
YANG Lülei1, ZHANG Jin1,2, SUN Yibin1, WANG Hui1, GONG Minfeng1
(1 ARTS Group Co. , Ltd. , Suzhou 215123, China?2 School of Civil Engineering, Southeast University, Nanjing 210096, China)
Abstract: The indexes in the design of super high-rise structures are generally relevant. It is inefficient to manually adjuststructural calculation models to realize the rationality and economy of structural design. Based on the secondarydevelopment of Grasshopper software platform, a parametric modeling module for super high-rise structures was established,in which ETABS was called through the OAPI interface for automatic structural analysis and design, and a genetic algorithmwas used to realize the special optimization design. Considering the characteristic of long time-consuming calculation in thedesign of parametric structures with large volume, many variables and complex constraints using the basic geneticalgorithm, a number of measures were taken to improve the algorithm, which effectively improves the optimization efficiencyand stability. Taking structural mass as the optimization objective, a super high-rise structure was parametrically designedregarding section sizes of frames column and shear walls as the primary design parameters. The results show that theoptimized super high-rise structure has good seismic performance under rare earthquake, the total mass of the structure isobviously reduced, and the optimization effect is remarkable, which verifies the feasibility and reliability of theparameterization technology in this paper.
Keywords:parametric technology;super high-rise structure;Grasshopper software;improved genetic algorithm;dynamicelastic-plastic analysis
∗中衡設計集團科研項目(2021-S1):數(shù)字技術在結構設計中的應用研究.
第一作者:楊律磊,碩士,高級工程師,一級注冊結構工程師,主要從事復雜結構設計與技術研究工作,Email: yanglvlei@artsgroup. cn.
[引用本文] 楊律磊,張謹,孫意斌,等. 參數(shù)化技術在超高層結構設計中的應用[J]. 建筑結構,2022,52(20):29-37. YANG Lülei,ZHANG Jin,SUN Yibin,et al. Application of parametric technology in the design of super high-risestructures[J]. Building Structure,2022,52(20):29-37.
