带空腹箱形钢桁架的连体结构设计
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（苏州设计研究院股份有限公司， 苏州 215021）［摘要］西交利物浦大学研发楼为平面及竖向特别不规则的结构。针对二、三层平面⑥～⑨轴间大跨度连廊，采用一端带滑动支座的空腹箱形钢桁架，以充分发挥空间桁架优势，满足建筑立面效果和净高要求；对于四层平面以上高位转换连体结构，通过多软件的比较分析、弹性时程分析、弹塑性静力分析、关键构件抗震性能化设计，并采取相应抗震措施，分析结果表明结构具有充分的抗震能力。［关键词］大跨度； 空腹桁架； 箱形桁架； 滑动支座； 高位转换； 连体结构中图分类号：TU318文献标识码：A文章编号：1002-848X(2013)20-0059-05Structural design of connected structure with hollow box steel trussZhang Min, Miao Pingzhou（Suzhou Institute of Architectural Design Co., Ltd., Suzhou 215021, China）Abstract: Scientific Research Building of Xi’an Jiaotong Liverpool University is serious irregular in planar and vertical arrangement. For structural design of large-span corridor from axis 6 to axis 9 between story 2 and 3, hollow box steel truss with sliding bearing at one end was used to take fully advantage of the spatial truss and meet the need of elevation effects and story height. Different programs were applied to analyze the connected structure with high-located transfer story, and results of elastic time-history analysis, elastic-plastic static analysis and so on were compared. Performance-based seismic design and seismic details design were applied in key members design. Conclusions indicate that this structure has sufficient seismic capacity.Keywords: large-span; vierendeel truss; box truss; sliding bearing; high-located transfer story; connected structure作者简介：张敏，教授级高级工程师，一级注册结构工程师，副总工程师，Email:min.zhang@siad-c.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—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］GB 50017—2003 钢结构设计规范［S］. 北京:中国计划出版社，2003.［4］陈绍蕃. 钢结构设计原理［M］. 2版. 北京:中国建筑工业出版社，1998.［5］李国强. 多高层建筑钢结构设计［M］. 北京:中国建筑工业出版社，2004.
