A PSC girder with I-typed section is one of the most common types applied to road and rail bridges in South Korea. As public service life of PSC bridges is on increase, lots of effort has been devoted to verify safety of PSC bridges. On the safety of PSC bridges, effective prestress force is one of the most important factor. At the current time, however, indirect measurements are mostly employed to measure the effective prestress force during construction. In this study, performances of FBG and EM sensors, which can directly measure the effective prestress force, are tested and investigated. The test result can be useful to develop block-out PSC girders with FBG and EM sensors monitoring effective prestress force during service life.

• 박영웅(부경대학교, 토목공학과, 학부생) | Park, Young-Ung
• 신경준(충남대학교, 토목공학과, 부교수) | Shin, Kyung-Joon
• 이성철(국제원자력대학원대학교, 원자력산업학과, 조교수) | Lee, Seong-Cheol
• 추태헌(성환이앤씨, 이사, 공학사) | Choo, Tae-Hoen
• 이환우(부경대학교, 토목공학과, 교수) | Lee, Hwan-Woo