Finite Element Analysis of Dynamic Behavior of CFRP Reinforced Concrete Frame

At present, the research on the performance of CFRP reinforced concrete structures at home and abroad mainly focuses on the ductility of individual members, especially FRP reinforced beams and columns, while the research on the ductility and seismic performance of FRP reinforced concrete frame structures is relatively less. Firstly, the finite element model of the shaking table test scale model of CFRP reinforced concrete frame structure is established by using SAP2000 finite element analysis software. Then, the non-linear dynamic time-history load condition is defined for the model, and the dynamic elastic-plastic time-history analysis is carried out to obtain the acceleration response and displacement response of the model under different levels of earthquake. The results show that the CFRP reinforced concrete frame structure is damaged and its stiffness deteriorates seriously. The lateral deformation of the structure is mainly caused by the bending deformation of the beam and column, while the lateral displacement of the column caused by the axial deformation is relatively small.