The paper presents an experimental study on shear behavior of RC beams retrofitted with Uni-Directional Narrow Fabric to improve seismic performance. Experimental parameters include the type of fiber, spacing of the fiber, and the ratio of transverse reinforcement. Also, Static loading test was performed on twelve shear-critical specimens. An experimental result were analyzed to investigate the contribution of shear strength and failure modes of the specimens retrofitted or strengthened with Uni-Directional Narrow Fabric compared to the non-retrofitted the specimen. In order to derive the shear strength model according to the spacing of the fiber, the experimental results were compared with the conventional shear strength model of RC elements retrofitted with FRP.

ABSTRACT
 1. 서 론
 2. 전단강도 및 실험 개요
  2.1 FRP 보강의 전단강도
  2.2 실험개요
 3. 실험 결과 분석
  3.1 실험결과
  3.2 전단기여분 산정
 4. 결론
 References

• 신상영(계명대학교 토목공학과) | Shin Sang-Young
• 장준호(계명대학교 건축토목학부 토목공학전공) | Chang Chun-Ho
• 김승직(계명대학교 건축토목학부 건축공학전공) | Kim Sung-Jig
• 김시윤(계명대학교 건축학과) | Kim Si-Yun
• 이재철(재원건설(주)) | Lee Jaechul