The composite structure has unique mechanical characteristics mainly due to being made and loaded in two stages. In order to further study the properties of the composite structure in two-stage loading, the finite element analysis based on ABAQUS is performed. The nonlinear properties are considered to simulate reinforcement and concrete, the coupling cell which is consistent with Houde formulation is used to define the bond-slip relation between rebar and concrete, the ideal elastic-plastic spring and contact surface which is consistent with Coulomb and combined with Slave-surface and Master-...
