Impact of geometrical dimensions on the shear behaviour of UHPC deep beams reinforced with steel and synthetic fibres
Abstract
Ultra-high-performance concrete (UHPC) is recognized for its exceptional strength, durability, and versatility in engineering applications, making it a reliable composite in the construction industry. The incorporation of fibres into UHPC enhances its mechanical properties. Non-metallic fibres offer a promising alternative to steel fibres due to their resistance to corrosion. While much research has focused on the shear behaviour of UHPC reinforced with steel fibres, there is a notable gap in understanding the impact of non-metallic fibres. This study aims to address this gap by comparing the influence of synthetic fibres to steel fibres on the shear behaviour of UHPC through numerical modelling. Finite element analysis (FEA) was conducted to simulate the shear behaviour of UHPC deep beams, incorporating 5D steel fibre, hooked-end steel fibres and Forta-Ferro (FF) synthetic fibres. The analysis was performed using the concrete damage plasticity (CDP) model within the ABAQUS software. To validate the finite element model (FEM), three deep beam specimens with varying dimensions, previously tested, were selected for comparison with experimental data. Key parameters investigated included fibre type and geometric dimensions, with an analysis of load-deflection curves, crack patterns, shear span-to-depth ratios ( λ ), length-to-depth ratios ( l / d ), and width-to-depth ratios ( b / d ) on shear capacity and mid-span deflection. Research findings indicate that, from a design perspe…
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Basalt fibers have less environmental impact in production than synthetic fibers.
“In addition, they have less environmental effects in their production as opposed to synthetic fibers and are therefore environmentally friendly [25].”
From Stress–Strain State and Strength of Fiber-Reinforced Concrete Beams with Basalt, Steel, and Polypropylene Fibers (2026) · cites this paper as [25]
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Martazaev, A., & Razzakov, S. (2026) · Construction Materials · doi:10.3390/constrmater6020019 · Cited by 3 · see citing works
- Authors
- Mirzaaghabeik, H., Mashaan, N. S., & Shukla, S. K.
- Venue
- Structures
- Publisher
- Elsevier BV
- Published
- 2025-08
- Volume
- 78
- Pages
- 109260
- ISSN
- 2352-0124
- Cited by
- 15
- References
- 0
- Language
- en
- Licence
- Funders
- Edith Cowan University
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