Study on Mechanical Properties of Simply-Supported Composite Beams Considering Creep and Slip

In the current industry, steel–concrete composite beams are used in large-span bridges and super-high-rise building structures due to their excellent overall performance. Concrete’s creep slip effects combined structure can adversely affect structure, thus affecting safe use of buildings. It is necessary study mechanical properties considering slip. order further under creep–sliding coupling, this study, based on energy variational method principle, equation a beam coupling established. The second-order differential axial force derived by introducing basic assumptions. calculation formulas for force, deflection, simply-supported different loads obtained using boundary conditions. Then, effect simulated criterion ANSYS finite element software when concrete material parameters change with time. results show that both will have significant structure; more strongly studs constrain slab, greater adverse beam. formula paper consistent numerical simulation solution suitable research provide theoretical basis uniform concentrated practical engineering creep.