南京航空航天大学学报2018，Vol.50Issue(1)：131-137,7.DOI:10.16356/j.1005-2615.2018.01.019
考虑界面滑移与剪切变形的钢-混凝土组合梁解析方法
Analytical Method of Steel-Concrete Composite Beam Based on Interface Slip and Shear Deformation
摘要
Abstract
To solve the deformation and stress of the steel-concrete composite beam under the impact of interface slip and shear deformation,Timoshenko beam assumption is introduced to establish theoretical calculating model of simple steel-concrete composite beam in elastic state,w hich leads to the analytical solutions of deflection and section stress under mid-span concentrated load.By analyzing the test results of four simple composite beams with different connection degrees and comparing it with theoretical re-sults,the value and the influence on deflection of interfacial shear stiffness are discussed.Results show that(1)theoretical results and experimental data are in good agreement;(2)the interface slip increases deflection,and the interfacial shear stiffness has an obvious influence on it;(3)neglecting shear deform-ation is unsafe to some extent when calculating the deflection of the composite beam.关键词
钢-混凝土组合梁/滑移效应/剪切变形/解析计算/界面剪切刚度Key words
steel-concrete composite beams/slip effect/shear deformation/analytical calculation/inter-facial shear stiffness分类
交通工程引用本文复制引用
黄侨,李文贤,汪炳..考虑界面滑移与剪切变形的钢-混凝土组合梁解析方法[J].南京航空航天大学学报,2018,50(1):131-137,7.基金项目
国家自然科学基金(51278119)资助项目. （51278119）
