To evaluate the efficiency of the FBG sensors encapsulated into 7-wire strand, a field test for the UHPC girder bridge was performed using both FBG sensors and the conventional strain gages. Variations of prestressing forces from FBG sensors are compared to the values from the strain gages after this test.

• 박성용(한국건설기술연구원 인프라구조연구실 연구위원, 공박) | Park, Sung Yong Corresponding Author
• 김성태(한국건설기술연구원 인프라구조연구실 수석연구원) | Kim, Sung Tae
• 김현우(한국시설안전공단 특수교유지관리센터) | Kim, Hyun Woo