[1]沈建华,高轩能,周期源.滑移对薄壁U型钢-混凝土组合梁挠度的影响[J].华侨大学学报(自然科学版),2009,30(5):557-562.[doi:10.11830/ISSN.1000-5013.2009.05.0557]
　SHEN Jian-hua,GAO Xuan-neng,ZHOU Qi-yuan.Influence of Slip on Deflection of Cold-Formed Thin-Walled U-Section Steel-Concrete Composite Beams[J].Journal of Huaqiao University(Natural Science),2009,30(5):557-562.[doi:10.11830/ISSN.1000-5013.2009.05.0557]
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滑移对薄壁U型钢-混凝土组合梁挠度的影响()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第30卷
期数:
2009年第5期
页码:
557-562
栏目:
出版日期:
2009-09-20

文章信息/Info

Title:
Influence of Slip on Deflection of Cold-Formed Thin-Walled U-Section Steel-Concrete Composite Beams
文章编号:
1000-5013(2009)05-0557-06
作者:
沈建华; 高轩能; 周期源
华侨大学土木工程学院; 深圳市电子院设计有限公司
Author(s):
SHEN Jian-hua1;  GAO Xuan-neng1;  ZHOU Qi-yuan2
1.College of Civil Engineering, Huaqiao University, Quanzhou 362021, China; 2.Shenzhen Electronics Design Institute Co LTD, Shenzhen 518031, China
关键词:
冷弯薄壁U型钢;  组合梁;  滑移;  挠度;  折减系数
Keywords:
cold-formed thin-walled U-section steel;  composite beam;  slip;  deflection;  coefficient of reduction rigidity
分类号:
TU398.9
DOI:
10.11830/ISSN.1000-5013.2009.05.0557
文献标志码:
A
摘要:
建立薄壁U型钢-混凝土梁的挠度计算模型,推导梁的平衡微分方程,得出组合梁在不同荷载作用下的挠度计算公式.对8根组合梁进行计算,将计算结果与用现有计算方法计算的值和试验值进行比较,结果表明,薄壁U型钢-混凝土梁的滑移效应对挠度的影响较大,不能忽略不计.在相同的剪力连接件作用下,薄壁U型钢-混凝土梁的剪力连接程度比普通钢-混凝土梁低,要适当增加剪力连接件,剪力连接程度系数可从0.66提高到0.75.通过与现行钢结构设计规范公式的比较和分析,得出适合薄壁U型钢-混凝土梁挠度计算的刚度折减系数修正计算公式.
Abstract:
The deflection calculation model of cold-formed thin-walled U-section steel-concrete composite beams is established.Based on the model,an equilibrium differential equation is derived and deflection calculation formulas of the composite beams under different forms of loading are obtained,and the deflections of 8 beams are calculated.Comparing the authors’ results with the results by currently existed methods and the test data,it is shown that the influence of slip effect on deflection of the composite beams is evident and can not be ignored; the deflection calculation method proposed in this paper is accurate; the degree of shear connection is obviously lower than the conventional steel-concrete with the same shear connector.The shear connectors should be appropriately increased to get an effective shear connection and the factor of degree of shear connection would be increased from 0.66 to 0.75.By comparison with formulas of code for design of steel structures,a modified formula of the coefficient of reduction rigidity is proposed for the deflection calculation of the cold-formed thin-walled U-section steel-concrete composite beams.

参考文献/References:

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备注/Memo

备注/Memo:
福建省科技计划项目(2006H0030); 厦门市科技计划项目(3502Z20073036)
更新日期/Last Update: 2014-03-23