Recently, many researches have been conducted to use FBG seonsors in order to measure the effective prestress force in a PSC girder. FBG sensors can be useful to investigate transfer length in prestressed concrete members since they do not have any effect on the bond mechanism between a tendon and concrete. In this research, an experimental program has been conducted to measure transfer length of tendons in high strength concrete members by using FBG sensors. The test results showed that FBG sensors gave a transfer length similar to that measured by concrete surface gauges, but they gave more stable results. This research can be useful for relevant areas such as investigation on the bond mechanism of a tendon in high strength concrete members.

• 이성철(국제원자력대학원대학교, 원자력산업학과) | Lee, Seong-Cheol
• 최송이(전남대학교, 건설환경공학과) | Choi, Song-Yi
• 신경준(충남대학교, 토목공학과) | Shin, Kyung-Joon
• 김재민(전남대학교, 해양토목공학과) | Kim, Jae-Min
• 이환우(부경대학교, 토목공학과) | Lee, Hwan-Woo