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Finite Element Modelling of Reinforced Concrete Beams Strengthened with Different Configuration of Carbon Fiber Sheets


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DOI: https://doi.org/10.15866/irece.v10i4.16870

Abstract


The influence of carbon fiber sheets’ orientation angle in strengthened reinforced concrete beams is investigated in this research. Experimental and numerical programs are conducted in order to study the flexural behaviour of RC beams strengthened with carbon fiber sheets fixed to the beam surface inducing different orientation angles of 0°, 45°, 60° and 90°. Finite element models are developed in ABAQUS and ANSYS and then they are verified using the experimental results of the test specimens. A comparison is made between the experimental and the numerical results. Both finite element models are able to predict the experimental load-deflection response and the crack pattern of the test specimens with reasonable accuracy. The results have shown that carbon fiber orientation angle has a significant influence on the flexural response of reinforced concrete beams. The best performance is obtained with 45˚ inclined carbon fiber sheets. Furthermore, a parametric study is performed in order to investigate the influence of carbon fiber sheets orientation angle, sheet depth and sheet thickness on the behaviour of strengthened reinforced concrete beams.
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Keywords


Finite Element; CFRP; Angles; ABAQUS; Reinforced Concrete (RC) Beams; Strengthening; ANSYS

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References


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