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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.77 No.5
- 발행연도
- 2021.1
- 수록면
- 637 - 650 (14page)
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The paper presents an investigation of the widely varying mechanical performance and behaviour of steel and Glass Fibre Reinforced Polymer (GFRP) reinforced concrete beams using non-destructive techniques of Acoustic Emission (AE) and Digital Image Correlation (DIC) under four-point bending. Laboratory experiments are performed on both differently reinforced concrete beams with 0.33%, 0.52% and 1.11% of tension reinforcement against balanced section. The results show that the ultimate load-carrying capacity increases with an increase in tensile reinforcement in both cases. In addition to that, AE waveform parameters of amplitude and number of AE hits successfully correlates and picks up the divergent mechanism of cracking initiation and progression of failure in steel reinforced and GFRP reinforced concrete beams. AE activity is about 20- 30% more in GFRP-RC beams as compared to steel-RC beams. It was primarily due to the lower modulus of elasticity of GFRP bars leading to much larger ductility and deflections as compared to steel-RC beams. Furthermore, AE XY event plots and longitudinal strain profiles using DIC gives an online and real-time visual display of progressive AE activity and strains respectively to efficaciously depict the crack evolution and their advancement in steel-RC and GFRP-RC beams which show a close matching with the micro-and macro-cracks visually observed in the actual beams at various stages of loading.
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참고문헌 (50)
참고문헌 신청
Abouhussien, A. A. / 2015 / Evaluation of damage progression in concrete structures due to reinforcing steel corrosion using acoustic emission monitoring / J. Civil Struct. Hlth. Monit 5(5):751~765
ACI 318 / 2008 / ACI 318, Building Code Requirements for Structural Concrete and Commentary / American Concrete Institute
2006 / ACI 440.1R-06, Guide for the Design and Construction of Concrete Reinforced with FRP Bar / American Concrete Institute
Aggelis, D. G. / 2013 / Characterization of mechanical performance of concrete beams with external reinforcement by acoustic emission and digital image correlation / Constr. Build. Mater 47(1):1037~1045
Aldahdooh, M. A. A. / 2013 / Damage evaluation of reinforced concrete beams with varying thickness using the acoustic emission technique / Constr. Build. Mater 44(1):812~821
ACI 318 / 2008 / ACI 318, Building Code Requirements for Structural Concrete and Commentary / American Concrete Institute
2006 / ACI 440.1R-06, Guide for the Design and Construction of Concrete Reinforced with FRP Bar / American Concrete Institute
Aggelis, D. G. / 2013 / Characterization of mechanical performance of concrete beams with external reinforcement by acoustic emission and digital image correlation / Constr. Build. Mater 47(1):1037~1045
Aldahdooh, M. A. A. / 2013 / Damage evaluation of reinforced concrete beams with varying thickness using the acoustic emission technique / Constr. Build. Mater 44(1):812~821
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