Experimental Design of Shear Resistance of Plastic Hinge of 500 MPa Reinforced Concrete Column

The purpose of this paper is to study whether HRB500 reinforcement can give full play to its high-strength characteristics when it is used as stirrup of frame column, analyze the degradation law and degradation mechanism of shear capacity of HRB500 reinforced concrete frame column under repeated load, discuss the influence of shear span ratio, axial compression ratio, stirrup characteristic value and other main factors on the shear performance of plastic hinge area of frame column, and on the plasticity of frame column The shear mechanism and the shear contribution of each shear component are analyzed in the hinge region.