冷弯薄壁型钢-混凝土组合楼盖构造与设计
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贾子文1，周绪红1,2，刘永健1(1 长安大学陕西省公路桥梁与隧道重点实验室， 西安 710064；2 兰州大学土木工程与力学学院， 兰州 730000)［摘要］冷弯薄壁型钢混凝土组合楼盖作为一种新型楼盖结构形式，需要从受力性能和构造方式方面进行更多的研究和认识。针对冷弯薄壁型钢混凝土组合楼盖的构造特点，从基本构件、紧固件、压型钢板与楼盖梁连接、楼盖梁腹板开孔、支座加劲件、梁与柱的安装、楼盖梁布置及支撑系统等方面，对其构造进行了详细阐述。最后，提出了冷弯薄壁型钢-混凝土组合楼盖的简化模型——T形组合梁的实用计算公式，以供工程设计参考和借鉴。［关键词］组合楼盖； 冷弯薄壁型钢； 组合梁； 构造中图分类号：TU398+.9文献标识码：A文章编号：1002848X(2013)12002005Construction and design of coldformed steel joists concrete composite floorJia Ziwen1, Zhou Xuhong1,2, Liu Yongjian1 (1 Key Laboratory for Highway Bridge and Tunnel of Shaanxi Province, Chang′an University, Xi′an 710064, China;730000, China)Abstract:The mechanical performance and construction method of coldformed steel joists concrete composite floor, which is a new floor structure system, should be more carefully studied. According to the structural characteristics of coldformed steel joists concrete composite floor, from basic components, fasteners, connection between profiled steel sheet and floor joists, holes on the web of floor joists, stiffeners of support saddle, installation method of beam and column, arrangement of floor joists, to bracing system and other aspects, the constructions were elaborated. Practical calculation formula of Tshaped composite beam, which is the simplified model of cold\|formed steel joists concrete composite floor, was put forward, some research results were supplemented for reference in project design.Keywords:composite floor； coldformed steel； composite beam； construction*国家自然科学基金项目（50578013）。作者简介：贾子文，博士后，高级工程师，Email: ziwenjia@163.com。参考文献［1］Builders’ guide to residential steel floors ［M］. U.S. Department of Housing and Urban Development Office of Policy Development and Research, 2001.［2］Standards and design guides on coldformed steel framing ［S］. American Iron and Steel Institute, Washington, D.C., 2003.［3］XU L, TANGORRA F M. Experimental investigation of lightweight residential floors supported by coldformed steel Cshape joists ［J］. Journal of Constructional Steel Research, 2007, 63(3): 422435.［4］KRAUS C A. Floor vibration design criterion for coldformed Cshape supported residential floor systems ［D］. Virginia: Virginia Polytechnic Institute and State University, Blacksburg, 1997.［5］贾子文. 冷弯薄壁型钢混凝土组合楼盖受力性能研究［D］. 西安: 长安大学, 2010.［6］贾子文, 周绪红. 冷弯薄壁型钢混凝土组合楼盖基频研究［J］. 工程力学, 2010, 27(11): 144153.［7］GB 50010─2010 混凝土结构设计规范 ［S］.北京: 中国建筑工业出版社, 2011.［8］Commentary on the standard for coldformed steel framing\|prescriptive method for one and two family dwellings［S］. AISI STANDARD, 2001.［9］LABOUBE R A, YU W W, LANGAN J E, et al. Coldformed steel webs with openings: summary report ［J］. ThinWalled Structures, 1997, 27(1): 7984.［10］STEVEN R F. The strength of stiffened CFS floor joist assemblies with offset loading//Canadian Cold Formed Steel Research Group report［R］. University of Waterloo, Waterloo, Ontario,Canada, 2003.［11］GB 50018─2002 冷弯薄壁型钢结构技术规范［S］. 北京: 中国计划出版社, 2002.
