Fiber-reinforced polymer (FRP) bars have advantages as a construction material, including corrosion resistance, lightweight and high tensile strength. However, FRP rebars have shortcomings, such as low elastic modulus comparing to the steel rebar. With these reasons, FRP bars have not been widely used to reinforced-concrete (RC) structures. To overcome these shortcomings, the steel-hybrid GFRP rebars were developed by the authors at Korea Institute of Civil Engineering and Building Technology (KICT). Mechanical properties of the developed steel-hybrid GFRP rebars were experimentally evaluated through this study. Both tensile and bonding tests were conducted and the mechanical performance was investigated as well as corrosion resistance. As a result of all tests, elastic modulus, tensile strength and boding strength of the steel-hybrid GFRP rebars were all improved in comparison with fully GFRP rebars.

1. 서 론
 2. STEEL-HYBRID GFRP REBAR 개발
  2.1 Steel-Hybrid GFRP Rebar 소개
  2.2 Steel-Hybrid GFRP Rebar 제작
 3. STEEL-HYBRID GFRP REBAR 역학성능평가
  3.1 인장성능(탄성계수) 평가
  3.2 부착성능 평가
  3.3 휨성능 평가
  3.4 방식성능 평가
 4. 결 론
 REFERENCES

• 서동우(한국건설기술연구원 전임연구원) | Seo Dong-Woo Corresponding author
• 박기태(한국건설기술연구원 연구위원) | Park Ki-Tae
• 유영준(한국건설기술연구원 연구위원) | You Young-Jun
• 박준석(한국건설기술연구원 박사후연구원) | Park Joon-Seok