摘要
采用换算截面法推导了冷弯C型钢-泡沫混凝土组合单向板弹性抗弯承载力的计算公式.应用数值积分方法,考虑泡沫混凝土和冷弯型钢的材料非线性本构关系,基于MATLAB编写了计算程序,得到组合单向板跨中截面弯矩-曲率(M-φ)关系全曲线.采用上述二种方法以及有限元法计算了组合楼板的弹性极限承载能力,并与试验结果进行了对比分析.结果表明,采用换算截面法计算组合楼板的弹性抗弯承载力是可行的.
The calculation formula of the flexural capacity of a composite one-way slab with cold-formed C steel-foam concrete is derived by using the conversion section method.Using numerical integration method,considering the foam concrete and cold-formed steel material nonlinear constitutive relation,based on the MATLAB computer program,get a composite one-way slab cross section bending moment-curvature(M-φ) relationship curve.Using the above two methods and finite element method,the elastic ultimate bearing capacity of composite floor slab was calculated and compared with the test results.It is shown that it is feasible to calculate the flexural capacity of composite slab by using the conversion section method.
作者
刘殿忠
贾景超
刘婉娟
LIU Dian-zhong;JIA Jing-chao;LIU Wan-juan(School of Civil Engineering,Jilin Jianzhu University,Changchun 130118,China)
出处
《吉林建筑大学学报》
2018年第6期1-6,共6页
Journal of Jilin Jianzhu University
基金
国家自然科学基金项目(51378238)
关键词
换算截面
弯矩-曲率
抗弯承载力
conversion section
moment-curvature
flexural capacity
