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（1深圳市力鵬工程結(jié)構(gòu)技術(shù)有限公司， 深圳 518034；2深圳市力鵬建筑結(jié)構(gòu)設(shè)計(jì)事務(wù)所， 深圳 518034）

［摘要］對當(dāng)前超高層建筑伸臂加強(qiáng)層結(jié)構(gòu)設(shè)計(jì)的一些問題進(jìn)行了討論，指出了加強(qiáng)層位置和數(shù)量對超高層建筑的頂點(diǎn)位移、基本周期、頂部風(fēng)振加速度、層間位移角、框架傾覆力矩、墻體拉力等的影響。經(jīng)分析給出了結(jié)合控制目標(biāo)設(shè)置加強(qiáng)層位置和數(shù)量的選擇方法，對頂部設(shè)置加強(qiáng)層進(jìn)行討論，結(jié)果表明頂部加強(qiáng)層并非較優(yōu)選擇，同時(shí)提出了伸臂桁架構(gòu)件截面的設(shè)定方法，結(jié)合工程實(shí)例說明該方法的應(yīng)用。

［關(guān)鍵詞］伸臂加強(qiáng)層； 結(jié)構(gòu)控制目標(biāo)； 數(shù)量和位置； 頂部加強(qiáng)層； 伸臂構(gòu)件截面

中圖分類號：TU318文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2019)07-0001-08

Some issues about structural design of outrigger strengthening layer in super high-rise buildings

Wei Lian1,2, Lin Xuxin1 , Wang Sen1,2

（1 Shenzhen Li Peng Structural Engineering Technology Co., Ltd., Shenzhen 518034, China；2 Shenzhen Li Peng Building Structure Design Institute, Shenzhen 518034, China）

Abstract:Some issues in the structural design of the outrigger strengthening layer in super high-rise buildings were discussed. The influences of the quantity and location of strengthening layers of super high-rise buildings on top displacement, basic period, top wind-induced acceleration, inter-layer displacement angle, frame overturning moment and wall tension were studied. Based on the analysis, the arrangement method of the location and quantity of the strengthening layer was presented based on control goal, and the setting of the strengthening layer on the top of the super high-rise buildings was discussed. The results show that the top strengthening layer is not an optimal choice, and the setting method for cross-section of outrigger component was put forward. The application of this method was illustrated combined with practical engineering.

Keywords:outrigger strengthening layer; structural control goal; quantity and location; top strengthening layer; cross-section of outrigger component