In this paper a method for measuring crack of RC members by using image analysis. Targets are attached on the surface of specimen equally in longitudinal and horizontal directions. Crack widths are measured by location of the detected targets on the images. The result compares crack patterns depending on steel ratio of the RC members. In members with high steel ratio, many additional cracks occurred after the initial crack and it reached the stabilized cracking stage. In members with low steel ratio, only one additional crack occurred after the initial crack and it was confirmed that the ductility capacity was lower in the members with low steel ratio than high steel ratio.

• 윤다운(학생회원, 부산대학교 사회환경시스템공학과 석사과정, 발표자) | Yoon, Da-Woon
• 우태련(학생회원, 부산대학교 사회환경시스템공학과 석박사통합과정) | Woo, Tae-Ryeon
• 조만석(부산대학교 사회환경시스템공학과 석사과정) | Jo, Man-Seok
• 정치영(정회원, 부산대학교 지진방재연구센터 연구교수, 공학박사) | Jung, Chi-Young
• 정진환(정회원, 부산대학교 건설융합학부 교수, 공학박사) | Cheung, Jin-Hwan 교신저자