To maintain the tension force of PS members is a very important issue for the safety of PSC structures. In practice many cases of corrosions and tensile force reduction in PC tendons, however, are reported from various causes. In the near future, thus the estimation of tensile forces in PC tendons would be major work of maintaining PSC structures. In this study, the approach using magnetic characteristics of PC tendons to estimate tensile force was investigated. Using simple but reasonable test procedures, the possibility of the approach like this was verified.

• 곽임종(한국건설기술연구원 인프라구조연구실 수석연구원, 공학박사) | Kwahk, Im Jong 교신저자
• 이정우(한국건설기술연구원 인프라구조연구실 전임연구원) | Lee, Jung Woo
• 김병화(경남대학교 토목공학과 조교수, 공학박사) | Kim, Byeong Hwa
• 조창빈(한국건설기술연구원 인프라구조연구실 연구위원, 공학박사) | Joh, Changbin