Finite Element Modelling of Polypropylene Fibre Reinforced Concrete Beams Reinforced with Steel under Bending
Abstract
Application of the fibre-reinforced concrete has manifested a wider acceptability over time for its contribution towards significantly improving the flexural performance of structural members. A lot of work has been done to understand the influence of fibres on the mechanical and structural behaviour of reinforced concrete. Towards this end, several researchers have experimentally investigated the residual flexural strength to characterize the fibre-reinforced concrete. The number of influencing parameters to be investigated through experiments is mostly limited because of the time and cost implications. Consequently, validation of the experimental investigations through analytical models and further utilizing these models to study the behaviour in greater detail is a viable option for researchers. As part of this work, an analytical investigation has been performed to investigate the performance of full-scale polypropylene fibre-reinforced concrete beams. The models have been validated through comparison with the observed performance during an experimental investigation where tests on twelve full-scale FRC beams were performed. Three-dimensional finite element models of the beams under 4-point loading were prepared and the post-cracking flexural performance of FRC beams has been investigated by varying the dosage of polypropylene fibres obtained from shredding medical face masks.
Keywords
Fibre reinforced polymers Polypropylene Residual flexural strength Finite element Constitutive model
References
- bass, W., Khan, M. I. & Mourad, S. 2018. Evaluation of mechanical properties of steel fiber reinforced concrete with different strengths of concrete. Construction and Building Materials, 168, 556-569.
- Al Marahla, R. H. & Garcia-Taengua, E. (2021). Sensitivity of the flexural performance of glass and synthetic FRC to fibre dosage and water/cement ratio. In P. Serna, A. Llano-Torre, J.R. Martí-Vargas & J. Navarro-Gregori (Eds.), Fibre Reinforced Concrete: Improvements and Innovations (pp.301-312).Cham. Springer International Publishing
- Al Marahla, R. H., Shehzad, M. K., & Garcia-Taengua, E. (2023). Flexural and deflection behaviour of synthetic fibre reinforced concrete beams reinforced with glass fibre reinforced polymers bars under sustained service load. Structures, 946-955.
Details
| Primary Language | English |
|---|---|
| Subjects | Environmental and Sustainable Processes |
| Journal Section | Articles |
| Authors | |
| Early Pub Date | December 25, 2023 |
| Publication Date | December 30, 2023 |
| Published in Issue | Year 2023Volume: 26 |
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