银川某钢管混凝土框架-钢支撑体系塔楼结构设计
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（1 东南大学土木工程学院， 南京 210096; 2 紫杉建筑设计股份有限公司， 昆明 650051）
［摘要］银川某超高层建筑塔楼的建筑高度为219.3m，采用钢管混凝土框架-钢支撑结构体系，并采用了屈曲约束支撑作为消能减震措施。主要介绍了本工程结构体系和抗侧力体系的确定、屋顶穹拱设计、斜柱分析及抗震加强措施，并采用YJK，MIDAS/Gen软件对塔楼进行了弹性反应谱分析，补充了弹性时程分析以及动力弹塑性分析。结果显示，结构各项指标均能满足规范要求，能够实现“大震不倒”的抗震设防目标。［关键词］超高层建筑; 钢管混凝土; 超限结构; 消能减震; 屈曲约束支撑中图分类号：TU318 文献标识码：A 文章编号：1002-848X(2016)08-0013-05
Structural design of a tower with CFST frame-steel brace system in YinchuanLiu Jun1,2, Feng Chunlei2(1 School of Civil Engineering, Southeast University, Nanjing 210096, China; 2 Taxus Architects Design Co., Ltd., Kunming 650051, China)Abstract: A super high-rise building in Yinchuan has architectural height of 219.3m and adopts structural system of CFST frame-steel brace with energy dissipation measures of buckling-restrained braces. The structural system determination, lateral force resistance system determination, roof vault design, inclined column analysis and seismic strengthening measures were mainly introduced. Programs of YJK and MIDAS/Gen were applied to carry out the elastic response spectra analyses. Both elastic time-history analysis and dynamic elastic-plastic analysis were accomplished. The results show that all performances of the structure can meet the requirements of codes, and the seismic performance target of "not collapse under the rare earthquake"can be fulfilled.Keywords: super high-rise building; concrete-filled steel tube (CFST); out-of-code structure; energy dissipation; buckling-restrained brace
作者简介：刘军，硕士，一级注册结构工程师，Email：21594340@qq.com。
