（北京市建筑设计研究院有限公司， 北京 100045）

［摘要］昆明科技金融中心塔楼结构高度为195-8m，塔楼核心筒平面呈L形布置，分别对其结构体系方案、加强层方案、支撑布置方案及不同方案的经济技术指标进行了对比分析。最终选用了钢管混凝土框架-钢支撑结构体系这一经济合理的结构方案，沿结构高度方向布置了三道腰桁架。对结构多项指标超限情况采用基于性能化的抗震设计方法，并进行了弹性和弹塑性时程分析。结果表明，该结构体系安全可行，可满足预期的抗震性能要求。

［关键词］钢管混凝土框架-钢支撑结构； 结构选型； 水平加强层； 经济性比较

中图分类号：TU393-2文献标识码：A文章编号：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

作者简介：张万开，硕士，工程师，Email：zhangwankai@biad.com.cn。