昆明某框架-支撑筒全钢结构主楼设计
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（1 广东杭萧钢构有限公司， 珠海 519055； 2 云南省建筑工程设计院， 昆明 650000）[摘要] 昆明某改建项目主楼为高度169.9m的高层建筑，采用钢管混凝土框架-钢支撑筒结构体系，外围框架柱采用矩形钢管混凝土柱。介绍了该工程的主要特点和结构分析的有关内容，包括结构布置、抗震性能目标、多道抗震防线等内容。采用SATWE，ETABS进行多遇地震作用和风荷载作用下结构的计算分析，采用SATWE进行弹性时程分析，采用PUSH&EPDA进行罕遇地震下的静力弹塑性推覆分析（Pushover）。计算结果表明该结构满足规范的各项要求，并采取了一些构造加强措施，可供同类工程参考。[关键词] 超高层建筑;全钢结构;矩形钢管混凝土柱;性能设计;时程分析中图分类号：TU391 文献标识码：A 文章编号：1002-848X(2013)S1-0394-05作者简介：张卫东，工程师，Email：972598909@qq.com。Structure design on steel frame-steel braced core tube of twoer in KunmingZhang Weidong1，Sun Xueshui1，Guan Chao1，Wu Bo2，Yin weize1，Wang Zhongqiu1(1 Guangdong Hangxiao Stssl Structure Co. ,Ltd. , Zhuhai 519055, China; 2 Architectural of Engineering Design Institute of Yunnan Province, Kunming 650000, China)Abstract: An reconstruction in Kunming is a high-rise building of 169.9 meters high, with concrete filled steel tubular(CFST) column- steel braced core tube structue system. The main characteristic of the stucture, structural analysisi and relevant details 0f design were introduced, including the structure arrangement,anti-seismic performance targets,seismic multiple-details lines,and so on.The structure was analyzed by SATWE and STABS under frequent earthquake and wind load.The elastic time history analysis under frequent earthquake by SATWE,elastic-plastic static analysis (Pushover) and elastic-plastic dynamic analysis (EPDA) under rare earthquake by PUSH&EPDA were carried out. The results meet requirements of technical codes and some strengthening measures have also been used to ernsure the security of the structure. It can be a reference for other similar projects.Keywords: high-rise building; all-steel stucture;concrete-infilled rectangular steel tube column; performance design;time history analysis
