Earticle

초록

영어

In these days, carbon fiber-reinforced polymer (CFRP) has been widely used for retrofitting and/or strengthening structural elements in structure. However, there are not enough test data to predict the long-term performance of the retrofitted structures exposed to weathering. The purpose of this study is to evaluate the effect of freezing and thawing on the structural performance of reinforced concrete (RC) beams strengthened in shear with carbon fiber sheet and plate. Seven small-scale RC beams (100 ㎜ × 100 ㎜ × 400 ㎜) were strengthened with CFRP in shear, subjected to up to 400 cycles freezing and thawing from -18～4℃, and tested to failure in four-point bending. The test data also indicated that no significant damage to carbon fiber sheet and plate strengthened concrete beams had occurred because of 400 cycles freezing and thawing.

목차

Abstract
 1. 서론
 2. 실험
  2.1 실험체 계획
  2.2 사용재료
  2.3 시험체 제작, 가력 및 측정장치
 3. 실험결과
  3.1 균열 및 최종파괴양상
  3.2 하중-변위 관계
  3.3 콘크리트 변형 특성
 4. 결론
 참고문헌

저자

• 방술규 [ Park, Sool-Kyu | 충남대학교 대학원 석사과정 ]
• 송선화 [ Song, Seon-Hwa | 충남대학교 대학원 석사과정 ]
• 김선우 [ Kim, Sun-Woo | 충남대학교 대학원 박사과정 ]
• 서수연 [ Seo, Soo-Yeon | 충주대학교 건축공학과 교수, 공학박사 ]
• 최기봉 [ Choi, Ki-Bong | 경원대학교 건축학과 교수, 공학박사 ]
• 윤현도 [ Yun, Hyun-Do | 충남대학교 건축공학과 교수, 공학박사 ]

참고문헌