Istrazivanja i projektovanja za privreduJournal of Applied Engineering Science


DOI: 10.5937/jaes0-34390 
This is an open access article distributed under the CC BY 4.0
Creative Commons License

Volume 20 article 956 pages: 498-510

Mervat Beramly
School of Engineering, Department of Civil Engineering, The University of Jordan, Amman, Jordan

Mutasim Abdel-Jaber
Faculty of Engineering, Department of Civil Engineering, Al-Ahliyya Amman University, Jordan. On Sabbatical leave from School of Engineering, Department of Civil Engineering, The University of Jordan, Amman, Jordan

Hasan Katkhuda*
Faculty of Engineering, Department of Civil Engineering, The Hashemite University, Zarqa, Jordan, P.O.Box 330127, 13133 Zarqa, Jordan

Nasim Shatarat
School of Engineering, Department of Civil Engineering, The University of Jordan, Amman, Jordan

Malak Al-diseet
School of Engineering, Department of Civil Engineering, The University of Jordan, Amman, Jordan

The shear behavior of reinforced concrete (RC) T-beams using externally bonded carbon fiber-reinforced polymers (CFRPs) composites is investigated experimentally and theoretically in this research. Nine RC T-beams were cast and tested under monotonic one-point loading. The variables used in this study are: the situation of specimens (strengthened or rehabilitated); type of CFRPs material (laminate or sheet); and the CFRPs configuration (inclined or horizontal). The experimental results were compared to theoretical results from nonlinear finite element (FE) models for T-beams using ABAQUS software. The experimental results showed that using different CFRPs materials in various configurations effectively improved shear capacity for strengthening and rehabilitating RC T-beams. Compared to the control beam, the three schemes used to strengthen the shear of RC T-beams were successful in increasing the maximum load capacity by a range of 13.6 to 36.4%, and by 4.6 to 27.3% for rehabilitate T-beams. The included horizontal strips of CFRPs laminates achieved the highest increase in the shear capacity for strengthened T-beams. While, for the rehabilitated T-beams the results showed that the CFRP scheme that included full wrap of the web with CFRPs sheets was the best. A good agreement was found between the experimental and theoretical results. The differences in the ultimate loads and mid-span deflections were in the range of 0.33% to 26%, and 0.32% to 6.6%, respectively.

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The authors would like to thank the dean of scientific research in the University of Jordan for partially funding the research.

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