TRM의 휨 보강 성능 예측에 관한 수치 해석적 연구

서지정보

· 발행기관 : 한국복합신소재구조학회
· 수록지 정보 : 복합신소재구조학회 논문집 / 8권 / 4호
· 저자명 : 정규산, 한상훈, 홍기남, 박기태, 서동우

목차

1. 서 론
2. TRM으로 휨 보강된 RC 보의 하중 예측
2.1 TRM의 부착 강도 모델을 위한 Teng 등에 의한모델 수정
2.2 감소 계수  값의 계산
2.3   를 사용한 예측 결과와 실험결과의비교
3. TRM으로 휨 보강된 RC 보의 처짐 예측
3.1 Cho 등(2015)에 의해 제안된 비선형 해석
3.2 TRM으로 휨 보강된 RC 보의 처짐 예측 결과
4. 결 론
ACKNOWLEDGMENT
REFERENCES

영어초록

Numerical analysis was performed to evaluate for reinforcing performance of RC beams in flexure strengthened with Textile Reinforced Mortar (TRM) in this study. New bond strength model for TRM based on the model proposed by Teng et al. was suggested to predict the flexural behavior of RC beams and effective stress in accordance with debonding of TRM. And reduce factor of 0.729 was suggested by investigation of results on the bending test of RC beams strengthened with TRM. Reliability of proposed bond strength model was verified through the comparisons between collected test results and predicted results about the ultimate load of RC beams occurred by debonding of TRM. The ratios of predicted results on the total experimental results, the average and coefficient of variation were 1.00 and 0.094, respectively. Also, nonlinear analysis method proposed by Cho et al. was used to predict the displacement at the cross-section of mid-span for RC beams in flexure strengthened with TRM. At the three state of the RC beams such as occurrence of initial flexural crack in tensile concrete, yield of tensile rebar, and ultimate in accordance with debonding of TRM. Displacements of beams were calculated at the three state and load-displacement curves by predicted results were compared to the collected test results.

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