无锡茂业城主塔楼超限高层结构设计
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(1 深圳机械院建筑设计有限公司， 深圳 518027； 2 深圳市政府投资项目评审中心， 深圳 518000)［摘要］无锡茂业城主塔楼地下2层，地上69层，大屋面结构高度291.6m，建筑高度304.1m，采用型钢混凝土柱-钢梁-钢筋混凝土内筒结构体系。设置三道加强层，伸臂桁架及腰桁架均采用钢结构，结构体系存在超高、加强层、局部楼板不连续等超限项。工程抗震采用性能化设计方法，根据超限情况，采取相应的计算分析方法及构造加强措施，既满足了抗震安全性要求，又满足建筑功能及结构经济性的要求。［关键词］超限高层建筑; 混合结构; 加强层; 钢支撑; 性能化设计中图分类号：TU318,TU973 文献标识码：A 文章编号：1002-848X(2013)22-0049-04Structural design of out-of-code high-rise building of Maoye City in WuxiTang Zenghong1, Liu Xiaochun2, Hu Ming1, Mo Deming1, Li Ronghui1(1 Shenzhen Mechinery Insiture Architectural Design Co., Ltd., Shenzhen 518027, China; 2 Shenzhen Municipal Government Investment Projects Evaluation Center, Shenzhen 518000, China)Abstract: The main tower of Maoye City in Wuxi has two levels of basement and 69 stories above ground. The structural height is 291.6m and the building height is 304.1 m. Structural system of steel reinforced concrete column-steel beam-reinforced concrete core wall is adopted. Three strengthened stories are set while outriggers and belt truss is steel structure. Out-of-code items existing in structural system include ultra-high, strengthened layers and local floor discontinuity. Performance-based seismic design method was adopted and the corresponding calculating methods and structural strengthening measures were carried out according to out-of-code condition. The above measures as a result fulfill the requirements of seismic safety, architectural function and economy.Keywords: out-of-code high-rise building; hybrid structure; strengthened story; steel brace; performance-based design作者简介：唐增洪，教授级高级工程师，Email：darby733@163.com。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］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.［3］同济大学土木工程防灾国家重点实验室. 无锡茂业城主楼刚体模型测压风洞试验机风振响应分析［R］.2008.［4］建设部建质［2006］220号. 超限高层建筑工程抗震设防专项审查技术要点［S］. 2006.
