廣州東塔結(jié)構(gòu)設(shè)計(jì)中數(shù)值優(yōu)化技術(shù)的應(yīng)用
侯勝利1，汪洋2，趙宏1
- 摘 要
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（1 奧雅納工程顧問(wèn)， 廣州 510620； 2 奧雅納工程顧問(wèn)， 深圳 518048）
［摘要］廣州東塔采用了帶伸臂桁架的巨型框架-核心筒結(jié)構(gòu)體系，巨型框架由8根巨柱和6道環(huán)桁架組成。針對(duì)塔樓結(jié)構(gòu)設(shè)計(jì)過(guò)程中遇到的技術(shù)難題，介紹了數(shù)值優(yōu)化技術(shù)的優(yōu)勢(shì)和應(yīng)用方法。采用該技術(shù)對(duì)結(jié)構(gòu)構(gòu)件的敏感性進(jìn)行分析，可迅速掌握關(guān)鍵指標(biāo)的控制因素，為設(shè)計(jì)調(diào)整指明方向。分別把結(jié)構(gòu)第一自振周期最小化和結(jié)構(gòu)材料造價(jià)最小化作為目標(biāo)函數(shù)，優(yōu)化結(jié)構(gòu)構(gòu)件的截面尺寸等屬性，成功解決了剪重比過(guò)小的難題，也有效減少了鋼材和混凝土的用量，提高了塔樓的經(jīng)濟(jì)性能。［關(guān)鍵詞］廣州東塔; 巨型框架-核心筒結(jié)構(gòu)體系; 數(shù)值優(yōu)化技術(shù); 剪重比; 結(jié)構(gòu)材料造價(jià)中圖分類(lèi)號(hào)：TU973 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2015)24-0066-06
Application of numerical optimization technique in Guangzhou East Tower structural designHou Shengli1, Wang Yang2, Zhao Hong1(1 Arup, Guangzhou 510620, China; 2 Arup, Shenzhen 518048, China)Abstract: Guangzhou East Tower adopts mega frame-corewall structural system with outriggers. The mega frame comprises 8 mega columns and 6 belt trusses. With the intention of solving the technical problems in tower structural design, the superiority and application method of numerical optimization technique were introduced. This technique was adopted in the sensitivity analysis of the structural members to achieve rapid mastery of the key control factors that provide a guidance for design adjustment. Minimizing first natural vibration period and minimizing material cost were considered as objective functions respectively to optimize the structural member sizes, which solved the problem of inadequate shear-weight ratio successfully and reduced the usages of steel and concrete effectively to increase economic performance of the tower.Keywords: Guangzhou East Tower; mega frame-corewall structural system; numerical optimization technique; shear-weight ratio; structural material cost
作者簡(jiǎn)介：侯勝利，碩士，副總工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email：sheng-li.hou@arup.com。
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