Closedform Solution of Composite Beam Considering Interfacial Slip Effects

Abstract:

Based on Goodman model,which is used for simulating the contact surface between beams,this paper presents an analysis of the relationship interfacial slip of composite beam,internal force,deflection and load in elastic state.For the simplysupported and cantilever beams subjected to variety of loads,the impacts on deformation due to the interfacial slip are considered through the “additional slip bending moment”.This theoretical formula can describe the law of slip,deflection and sectional stress distribution.The closedform solutions are then validated by means of finite element analysis.All the theoretical formula in the paper which reflects the structural mechanism can simplify calculation of interfacial slip effects of composite beam.