Abstract
The shear resisting model for reinforced and prestressed concrete beams using steel bars has been proposed. This model is based on the shear resisting model for non-prestressed and prestressed concrete beams reinforced with FRP rods which was proposed previously by the authors. In the proposed model, the shear strengths of beams in which yielding of shear reinforcement takes place can be calculated considering equivalent stiffness of shear reinforcement. It was confirmed that the shear resisting model could predict experimental shear strengths of reinforced and prestressed concrete beams with good accuracy.