Abstract
In this study, a new type column base, which has high deformation capacity and high repairability, is proposed. Plastic deformation capacity of this column base is brought by the plastic deformation capacity of the angle, which is a joint element. Thus, in this column base, the part which is allowed plastic deformation is limited to the angle, and other part including the anchor bolt is kept in elastic range. The angle can be exchanged easily, when it was damaged. The deformation capacity and the repairability of this column base are verified by axial loading test of angle element and cyclic loading test of column base.