Abstract: In order to investigate the seismic behavior and shear bearing capacity of HRB600 high strength bar concrete beam-column joints reinforced by steel fiber， a quasi-static test of 10 beam-column edge joints was carried out. The influence of axial compression ratio， shear compression ratio， stirrup ratio， concrete type and reinforced range of steel fiber concrete on the seismic behavior index of HRB600 reinforced concrete beam and column joints was studied. The results show that the hysteresis curve of the HRB600 reinforced concrete beam-column joint with overall/local steel fiber is fuller， the rate of stiffness degradation is slower， and the energy consumption is higher. The steel fiber reinforced concrete can significantly improve the failure mode of the specimen and reduce the cumulative damage of the joints. When the formula of “Code for Seismic Design of Buildings” is used to calculate the shear bearing capacity of HRB600 high strength bar concrete beam-column joints reinforced by steel fiber， it is more conservative for specimens with a lower stirrup ratio， closer to the experimental value for high stirrup ratio. The predictions calculated by ACI 352—02 have a higher safety margin than the predictions given by “Code for Seismic Design of Buildings”.

Key words: beam-column joint, HRB600 high strength bar, steel fiber concrete, quasi-static test, seismic behavior