昆明欣都龙城超高层塔楼结构设计与分析
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商黔建,罗强军(云南怡成建筑设计有限公司, 昆明 650118)[摘要]欣都龙城超高层塔楼采用混合框架-型钢混凝土核心筒-伸臂桁架的混合结构体系。利用避难(设备)层,共设置3道加强层以提高结构整体抗侧刚度,加强层同时设置伸臂桁架与腰桁架。采用两个相互独立的不同力学模型的软件对关键部位与构件进行了精细分析与性能设计,对结构整体进行了弹性和弹塑性动力时程分析,保证抗震设防目标与多道防线的实现。并对高烈度区超高层结构设计提出了建议。[关键词]超高层建筑; 加强层; 混合结构; 抗震性能化设计; 竖向变形差中图分类号:TU318 文献标识码:A 文章编号:1002-848X(2013)16-0068-05Structural design and analysis of Xindu Loong City super-tall building in KunmingShang Qianjian, Luo Qiangjun(Yunnan Yicheng Architectural Design Co., Ltd., Kunming 650118, China)Abstract: Xindu Loong City super-tall building adopts hybrid structural system of concrete-filled steel column and steel beam frame-steel reinforced concrete core wall-outriggers. To enhance the lateral stiffness, 3 strengthened stories with outriggers and belt trusses are set. Precise analysis and performance design of critical parts and members were carried out by 2 independent softwares. Elastic analysis and elastic-plastic dynamic time-history analysis of the structure were conducted to fulfill the seismic performance objectives and seismic fortification requirements. Design suggestions are provided for super-tall structures in high-level earthquake fortification zones.Keywords: Super-tall building; strengthened story; hybrid structure; performance-based seismic design; vertical deformation difference作者简介:商黔建,学士,高级工程师,一级注册结构工程师,Email:shangqianjian@sina.cn。参考文献[1]GB 50011—2001建筑抗震设计规范[S]. 2008年版. 北京:中国建筑工业出版社,2008.[2]建质[2006]220号. 超限高层建筑工程抗震设防专项审查技术要点[S].[3]JGJ 3—2002高层建筑混凝土结构技术规程[S]. 北京:中国建筑工业出版社,2002.[4]束伟农,高建民,宋玲,等. 深圳南山中心区T106-0028地块中A座超高层结构设计与研究[J]. 建筑结构,2009,39(12):127-131.[5]CECS 230:2008 高层建筑钢混凝土混合结构设计规程[S]. 北京:中国计划出版社,2008.[6]魏琏,王森. 建筑抗震设计的屈服判别法及其工程应用[J]. 建筑结构,2006,36(6):13-17.