Abstract
This paper describes the result of crack-inducing experiment on real building RC wall. Compared to conventional crack control joints, the proposed crack control joints with crack-inducing bars was no influence by the difference of crack-inducing bars. A crack width estimation method proposed by Ohno et al. it tended to correspond roughly to the maximum crack widths of the initial material age of actual building. There was a difference between the experimental values of the crack width afterwards.