PSC girder bridges, widely applied to bridge and railroad bridge (25 ~ 50 m), are a type of bridge that introduces compressive force in advance to the part where tensile force of concrete is generated. The tension force for introducing the compressive force by inserting the tendon into the concrete is a key element of the structural performance in the PSC. At present, however, measurement and verification of this is indirectly managed through deflection and cracking. However, it has become more necessary to develop practical evaluation methods of prestress force of PSC bridges. In this experiment, a small scale PSC beam with various curvature radii was made. Tension force monitoring with FBG sensor and EM sensor was performed on test members using 3 point flexural loading test. The measured values of the FBG sensors and the EM sensors used in the experiment were analyzed and compared with the measured values of the load cell.

• 박영웅(부경대학교 토목공학과, 석사과정) | Park, Young Ung
• 이주석(부경대학교 토목공학과, 공학석사) | Lee, Joo Seok
• 신경준(충남대학교 토목공학과 부교수, 공학박사) | Shin, Kyung Joon
• 이성철(국제원자력대학원대학교 원자력산업학과 부교수, 공학박사) | Lee, Seong Cheol
• 이환우(충남대학교 토목공학과 교수, 공학박사) | Lee, Hwan Woo 교신저자