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Advances in Concrete Construction Volume 15, Number 5, May 2023 , pages 321-331 DOI: https://doi.org/10.12989/acc.2023.15.5.321 |
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Experimental-numerical study on the FRP-strengthened reinforced concrete beams with a web opening |
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Abdullah Rafiq Safiaa, Suryamani Behera, Rimen Jamatia, Rajesh Kumar and Subhajit Mondal
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| Abstract | ||
| The effect of fibre-reinforced polymer (FRP) strengthening on the behaviour of reinforced concrete (RC) beams with web openings is studied. It has been observed that the load-carrying capacity and deflection in the presence of an opening reduced by approximately 50% and 75%, respectively. Three-dimensional nonlinear finite models are first validated with the results obtained from experimental data. Thereafter, a series of parametric studies are conducted for the beam with an opening. In the study, it is observed that a square opening shape is critical in comparison to the elliptical and circular-shaped opening. The web opening located near the support is found to be critically compared to the opening in the middle of the beam. Given the critical opening shape situated at the critical location, the increase in FRP layers enhances the load-deformation behaviour of the FRP-wrapped RC beam. However, the load-deformation responses are not significantly improved beyond a certain threshold value of FRP layers. | ||
| Key Words | ||
| beam with an opening; concrete; Finite Element Analysis; FRP; strengthening | ||
| Address | ||
| "(1) Abdullah Rafiq Safiaa, Suryamani Behera, Subhajit Mondal: Department of Civil Engineering, NIT Rourkela, India; (2) Rimen Jamatia: Department of Civil Engineering, IIT Jammu, India; (3) Rajesh Kumar: Department of Civil Engineering, BITs Pilani, India." | ||
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