Abstract
Tied arch effect accelerates shear strength of RC beams especially in case shear span-depth ratio is small, while unbonded members and plate embedded member sometimes have higher shear capacity even in short beam range. This phenomenon can be estimated by 2-dimentional analysis. In this study, to simplify and clarify that mechanism, diagonal crack path is focused on because that should affect on tied arch system. Consequently, estimation method of shear capacity of RC members containing Artificial Crack Device or un-bonded zone is developed. Hence, applicability of proposed method is verified and discussed with normal RC members, un-bonded members and ACD embedded members.
