난연성 FRP패널을 이용한 철근콘크리트 보의 휨 보강성능 평가

다국어 초록 (Multilingual Abstract)

The purpose of this study is to evaluate the flexural strengthening performances of the reinforced concrete flexural members strengthened by iFRPP(incombustible Fiber Reinforced Polymer Panel). The bond characteristics of iFRPP on the concrete were estimated to acquire the effective bond length for strengthening of RC members through various bonding tests. Also, full-scale RC beams strengthened by iFRPP were tested monotonically to evaluate the strengthening effects of iFRPP on the RC beams. The main variables of the six test specimens were the thickness of iFRPP and bond length.<br/>
From the test results, it was found that the failure mode of RC beams strengthened by iFRPP was governed by the fracture of iFRPP, and flexural strengthening effects of iFRPP on the RC beams are proportional to the thickness of iFRPP. Therefore, the bond strength of 5.0kgf/㎠ and the partial reduction factor of 0.9 for the strengthening design of RC beam is proposed in this study.

목차 (Table of Contents)

• Abstract
  
• 1. 서론
  
• 2. 재료실험
  
• 3. iFRPP의 인장전단 부착강도 실험
  
• 4. 난연성 FRPP 보강공법의 휨 보강성능실험
  
• 5. iFRPP 보강공법의 설계용 부착강도
  
• 6. iFRPP의 부분감소계수
  
• 7. 결론
  
• 8. 참고문헌

참고문헌 (Reference)

1 반병렬, "탄소섬유쉬트의 보강량 및 정착 길이가 RC보의 휨거동에 미치는 영향" 579-584,

2 유영찬 외, "탄소섬유쉬트와 콘크리트의 부착강도 실험연구" 13 (13): 168-174, April2001

3 최기선 외, "탄소섬유쉬트로 보강된 RC보의 휨 부착성능에 관한 실험적 연구" 997-1002,

4 신영수 외, "탄소섬유쉬트로 밑면 보강된 철근콘크리트 보의 구조적 거동" 249-257, 1995.8.

5 대한건축학회, "콘크리트 구조물의 보수 보강" 1997

6 한국건설기술연구원, "건축구조물 보수보강 공법의 성능평가에 관한 연구" 2000.11

7 Alfarabi Sharif, "Strengthening of Initially Loaded Reinforced Concrete Beams Using FRP Paltes" ACI 91 (91): Mar-Apr.1994.

8 Philip A. Ritchie, "External reinforcement of concrete beams using fiber reinforced plastics" ACI July-Aug.1991

9 ACI Committee 440 Draft, "'Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthenings Concrete Structures" 79-, 2000