Abstract
After Tokachioki Earthquake of 1968, the importance of shear walls has been recognized again. The other hand the revision of Japanese Building Code has made it necessary to establish the serviceable design formulas of shear walls. From the forgoing points, the ultimate shear strength of reinforced concrete walls controlled by slip failure of wall panel were formulated. The effects of the concrete strength of wall and the ratio of shear reinforcing bar in wall panel to the ultimate shear strength were discussed, comparing the semi-theoritical values with the experimental values of 38 specimens of past experiments. The formulas of ultimate shear strength modified by multiple regression analysis coincide fairly well with the values of experiments, of which the multiple correlation coefficient is 0.88. They were shown to be used as the design formulas of reinforced concrete shear walls, controlled by slip failure of wall panel, in realistic structural design.
