Abstract: In order to conduct research on the dynamic properties of frame joints with post-installed chemically rebar,five RC members are tested under cyclic load and constant axial,in which four of them are post-installed chemically bonded longitudinal rebar,and compares the results with one cast-in-place member.Under low frequency cyclic loading,test procedures are described,experimental data are analyzed and compared,and the effects of the embedded depth and the rebar diameter on the seismic behavior are studied.Results show that the seismic behavior can be improved for RC structure with increasing of the bond strength,including the ductility,energy dissipation,and the bearing capacity.But the embedded depth must be increased when the diameter of the rebar was raised.The research process is similar to the work during construction,so the result of the research is credible,and can be referenced during design for strengthening concrete structure.