In order to increase ductility of R/C framed shear walls, the reinforcing method to confine the end of peripheral columns in square steel tubes and also to arrange truss type ties in wall panels are proposed. In this paper, the experimental results of compressive loading tests of wall panel elements and lateral loading tests under a constant axial load of shear walls reinforced by this method are described. The experiments conclude that the steel tube and truss type ties increased the ductility of shear walls even if the margin of the lateral load carrying capacity due to shear failure to the capacity due to flexural yielding was narrow.
