无锡云蝠大厦超限高层结构设计
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孙会郎，陈建妙，冯自强（中联筑境建筑设计有限公司， 杭州 310014）［摘要］无锡云蝠大厦地下3层，地上48层，结构高度219.25m，顶部有约30m高的钢构架，总高度248.50m，采用型钢混凝土框架-钢筋混凝土核心筒结构体系，裙房与塔楼之间不设缝，设置2道加强层。采用SATWE，MIDAS Building软件进行了小震弹性计算，结果表明：结构的周期比、剪重比、层间位移角等均满足规范要求。选用7条地震波对结构进行了弹性动力时程分析、楼板舒适度验算和罕遇地震弹塑性时程分析，针对超限情况给出详细措施并采用桩端后注浆工艺减少结构的差异沉降量。［关键词］超高层建筑； 混合结构； 结构设计； 加强层； 灌注桩后注浆中图分类号：TU973.1+4 文献标识码：A 文章编号：1002-848X(2013)18-0001-07Structural design of out-of-code super high-rise building of Yunfu Mansion in WuxiSun Huilang, Chen Jianmiao, Feng Ziqiang(China United Zhujing Architecture Design Co., Ltd., Hangzhou 310014, China)Abstract: Yunfu Mansion in Wuxi, which is totally 248.50m high with a 30m high steel frame on the top, consists of three levels of basements and 48 stories above grade. The structure, which has the height of 219.25m, adopts steel reinforced concrete frame-RC core wall system. No seismic joints are set between the tower and the podium, while two strengthened-storeys with outriggers and belt trusses are set. Elastic analysis was carried out under frequent earthquake using programs as SATWE and MIDAS Building. Results show that the parameters of period ratio, shear-weight ratio and the interlayer displacement angle satisfy the requirements of the codes. Elastic time-history analysis was carried out using seven seismic waves, as well as the analysis of floor comfort degree and elastic-plastic time-history analysis under rare earthquake. Detailed measures had been provided aimed at the out-of-code factors and post grouting measures in cast-in-situ piles construction were carried out to reduce the differential settlement.Keywords: super high-rise building; hybrid structure; structural design; strengthened storey; post grouting measure in cast-in-situ pile construction作者简介：孙会郎，硕士，工程师，一级注册结构工程师，Email：huilang_sun@acctn.com。参考文献［1］GB 50223—2008 建筑工程抗震设防分类标准［S］.北京：中国建筑工业出版社，2008.［2］GB 50011—2010 建筑抗震设计规范［S］.北京：中国建筑工业出版社，2010.［3］GB 50009—2001 建筑结构荷载规范［S］.2006年版.北京：中国建筑工业出版社，2006.［4］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.［5］建质［2010］109号超限高层建筑工程抗震设防专项审查技术要点［S］.2010.
