Analysis On Steel-Concrete Composite Beam With Notched

Steel-concrete composite beam with notched is a new type of structure which developed on the basis of steel and reinforced concrete structures.This superimposed slab is made up of a concrete slab aerated concrete and a steel beam with reverse T section.Part of T steel web bend 90 to act as shear connector in a certain pitch for steel beams and concrete slab can work together.1)Through a series of experiments record the damage form of composite,deformation and the stress distribution state.After that,the bending behavior,slip effect between the steel beam and the concrete flange,and bearing characteristic of steel-concrete composite beam with notched are studied reasonably.2)Computing load-slip relationship of the whole analysis by using ANSYS,while the finite element analysis to calculate the limit load reference value as a pilot study.Based on finite element analysis data and experimental data,continue to study the shear width and height of shear parts.the shear thickness,and steel material pieces bearing capacity of bending behavior and the effective width of concrete flange.3)Based on finite element analysis data and experimental data,and then according to bearing characteristic' calculation method of the current specification,take slip effect into account and deduce the new formulas of deflection.4)In the elastic stage and plastic stage,by changing the parameters of the size of shear connectors in the finite element numerical simulation model,` and compare with the experimental results,it is found that in elastic phase the effective width is similar on the whole and accords with the experimental results well.But when in plastic phase the effective width adopted by the codes is inclined to less than the actual effective width greatly.In the end,With comparing the computed results,some simple equations which applied in the effective width of concrete flange in the elastic stage and plastic stage was suggested.