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（北京市建筑設(shè)計(jì)研究院有限公司， 北京 100045）

［摘要］昆明科技金融中心塔樓結(jié)構(gòu)高度為195-8m，塔樓核心筒平面呈L形布置，分別對(duì)其結(jié)構(gòu)體系方案、加強(qiáng)層方案、支撐布置方案及不同方案的經(jīng)濟(jì)技術(shù)指標(biāo)進(jìn)行了對(duì)比分析。最終選用了鋼管混凝土框架-鋼支撐結(jié)構(gòu)體系這一經(jīng)濟(jì)合理的結(jié)構(gòu)方案，沿結(jié)構(gòu)高度方向布置了三道腰桁架。對(duì)結(jié)構(gòu)多項(xiàng)指標(biāo)超限情況采用基于性能化的抗震設(shè)計(jì)方法，并進(jìn)行了彈性和彈塑性時(shí)程分析。結(jié)果表明，該結(jié)構(gòu)體系安全可行，可滿足預(yù)期的抗震性能要求。

［關(guān)鍵詞］鋼管混凝土框架-鋼支撐結(jié)構(gòu)； 結(jié)構(gòu)選型； 水平加強(qiáng)層； 經(jīng)濟(jì)性比較

中圖分類號(hào)：TU393-2文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2016)17-0031-05

Structural system optimization and economic comparison of Kunming Technology and Financial Center tower

Zhang Wankai, Zhen Wei, Sheng Ping, Zhao Ming, Wang Yi

(Beijing Institute of Architectural Design, Beijing 100045, China)

Abstract:Kunming Technology and Financial Center tower has structural height of 195-8m and the core-wall of the tower features L-shape in plane. Economic and technical indices of different structure schemes, waist truss schemes, outriggers schemes and brace schemes were analyzed and compared. Concrete-filled steel tubular frame-steel braced structure scheme was finally adopted for its economy and reasonability. There were three waist trusses along the structure′s height direction in this structure scheme. Performance-based seismic design method was adopted considering the condition that multiple structural indicators are out-of-code. The elastic and elastic-plastic time-history analyses were carried out. Results show that the structural system is safe and feasible and can meet the expected seismic performance requirements.

Keywords:concrete-filled steel tubular frame-steel braced structure; optimization of structural system; horizontal strengthened story; economic comparison

作者簡(jiǎn)介：張萬(wàn)開(kāi)，碩士，工程師，Email：zhangwankai@biad.com.cn。