基于部分剪力连接模型的压型钢板-混凝土连续组合板极限承载力分析
- 摘 要
-
(清华大学土木工程系结构与振动教育部重点实验室,北京 100084)[摘要]基于部分剪力连接模型,利用结构力学的基本原理,同时考虑了各种因素的影响,对不同工况作用下的连续组合板的极限承载力计算方法进行了推导。与国内外的连续组合板试验结果的对比表明,提出的计算方法能够较为准确地计算连续组合板的极限承载力。通过改变不同的参数,对影响连续组合板极限承载力的主要参数进行了分析,提出了实际工程中宜遵循的原则。最后给出了实用的设计表达式。[关键词]连续组合板;压型钢板;极限承载力;部分剪力连接模型Analysis of ultimate capacity of continuous profiled steel sheet-concrete composite slab based on partial connection modelNie Jianguo, Wang Yuhang(Department of Civil Engineering,Key Laboratory Structural Engineering and Vibration of China Education Ministry,Tsinghua University,Beijing 100084,China)Abstract:Analysis of the ultimate capacity of continuous composite slab is made based on partial connection model and principle of structure mechanism. Variable load conditions and parameters are considered. Comparisons between experimental results and theoretical results show that the proposed method is accurate for calculating the ultimate capacity of continuous composite slab. The main effects on ultimate capacity of continuous composite slab are analyzed by changing variable parameters. Some proposals are advised for practical design and the design method is proposed.Keywords:continuous composite slab; profiled steel sheet; ultimate capacity; partial connection model国家自然科学基金资助项目(50438020)。作者简介:聂建国, 教授, 博士生导师, 教育部长江学者特聘教授, Email: niejg@mail.tsinghua.edu.cn。参考文献[1]聂建国, 余志武. 钢-混凝土组合梁在我国的研究及应用[J]. 土木工程学报,1999(2).[2]DANIELS B J,CRISINEL M. Composite slab behavior and strength analysis. part 2:comparisons with test results and parametric analysis[J]. Struct. Engrg., ASCE, 1993, 119 (1):36-49.[3]PORTER M L,EKBERG C E. Behavior of steel-deck-reinforced slabs[J]. Struct. Engrg., ASCE, 1977, 103(3): 663-667.[4]左莹. 压型钢板-混凝土组合板的研究[D]. 北京: 清华大学,2007.[5]黄亮. 缩口型压型钢板-混凝土组合板的试验研究[D]. 北京: 清华大学,2005.[6]易卫华. 闭口型压型钢板-混凝土组合板的试验研究[D]. 北京: 清华大学, 2003.[7]JOHNSON R P. Composite Structures of Steel and Concrete, Volume 1, Beams, Slabs, Columns and Frames for Buildings[M]. Oxford: Blackwell Scientific Publication, 1994.[8]M PATRICK. A new partial shear connection strength model for composite slabs[J]. Journal of the Australian Institute of Steel Construction,1990,24(3):2-16.[9]聂建国, 沈聚敏, 余志武. 考虑滑移效应的钢-混凝土组合梁变形计算的折减刚度法[J]. 土木工程学报,1995(6): 11-17.[10]聂建国, 刘明, 叶列平. 钢-混凝土组合结构[M]. 北京:中国建筑工业出版社, 2005.[11]龙驭球, 包世华. 结构力学教程[M]. 北京:高等教育出版社,1999.[12]陈世鸣. 压型钢板-混凝土组合楼板的承载能力研究[J]. 建筑结构学报, 2002, 23(3):19-26.[13]LEE L, QUEK S, ANG K. Moment redistribution in continuous profiled steel-concrete composite slabs[J]. Magazine of Concrete Research, 2001, 53(5):301-309.