外框六边形单元网格在某高层建筑结构中的设计与应用
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丁洁民,陆秀丽,居炜,吴宏磊(同济大学建筑设计研究院(集团)有限公司, 上海 200092)[摘要]同济逸仙大厦工程采用了新型的六边形单元网状钢结构外筒钢筋混凝土筒体的混合结构体系,对该种新型结构体系的受力特点进行了分析研究,包括六边形外框网格结构在重力荷载下的静力分析,地震作用下内、外筒的内力分配以及静力推覆下的塑性发展,同时对网格结构中Y形复杂节点加劲肋的布置进行了详细的有限元分析。[关键词]高层结构; 六边形网格结构; Y形节点中图分类号:TU398+.9文献标识码:A文章编号:1002848X(2013)12000104Structural design and application of hexagonal grid structure in a highrise buildingDing Jiemin, Lu Xiuli, Ju Wei, Wu Honglei(Tongji Architectural Design (Group) Co., Ltd., Shanghai 200092, China)Abstract:A new type of hexagonal grid steel tube and reinforced concrete core structural system is used in Tongji Yixian project. Some mechanical characteristics of this new structural system were analyzed and researched, including static analysis under gravity, the lateral force distribution between internal and external core under earthquake and the plastic development by pushover analysis. Meanwhile, the arrangement of ribbed stiffener of complex Yshape joints in the hexagonal grid structure was conducted by finite element analysis.Keywords:highrise building; hexagonal grid structure; Yshape joint作者简介:丁洁民,博士,教授,博士生导师,Email:djm@tjadri.com。参考文献[1]吕西林主编. 超限高层建筑工程抗震设计指南[S]. 上海:同济大学出版社,2005.[2]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.[3]逸仙路25号地块项目高层建筑结构抗震分析与设计送审报告[R].上海:同济大学建筑设计研究院(集团)有限公司(TJAD),2008.