GFRP와 철근 보강근으로 복합 휨보강된 보 시험체의 구조성능 평가

Evaluation of Structural Capacity for Concrete Beams Reinforced Simultaneously with GFRP and Steel rebar

The purpose of this study is to evaluate structural performance of concrete beam reinforced simultaneously with GFRP and steel rebar. Because the GFRP has lower elastic modulus than steel or CFRP, serviceability for concrete structure can be an issue. According to the test result, the hybrid reinforced specimen showed better stiffness improvement than the specimen reinforced with only GFRP rebar. From an additional research on design parameter and reliability analysis, the field adaptability can be proved.