The destruction of the shear wall with the side column base deformed in the horizontal direction is assumed. The experiment of the reinforced concrete column having shear glide plane is conducted and the effects of main reinforcement pitch and hoop are examined on dowel strength in the case of using D13 as column main reinforcement. As a result, it is confirmed that the dowel strength subjected to tensile strain decreases compared to the strength subjected to no tensile strain. And it is showed that the main reinforcement pitch and hoop position influence the dowel strength subjected to tensile strain. We consider that the decrease of the dowel strength with main reinforcement subjected to tensile strain have relation to the bearing resistance of concrete.