Experimental study of precast concrete components slurry anchor inserted steel reinforcement and steel plate hoop connecting column

In order to study the seismic behavior of the assembled integral type slurry anchor inserted steel reinforcement and steel plate hoop connecting column,2 assembled connecting columns and 2 cast-in-place column models and the low cyclic loading are designed and tested.The assembly connecting the column and a cast-in-place column failure mechanism,failure pattern,hysteresis curves,skeleton curves,deformation,energy dissipation capacity and ductility are also analyzed together with the study of axial compression ratio,steel plate hoop for assembling connecting column seismic performance.Experiments show that the assembly type connecting column failure mechanism and morphology and cast-in-situ concrete column have a big difference,and the plastic hinge zone develops in different directions.Axial compression ratio is assembled connecting column ductility coefficient as one of main influencing factors.The axial compression ratio is small and so is the ductility coefficient.The steel plate hoop in high shaft pressure ratio of the case can also improve the seismic effect.