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Advances in Concrete Construction Volume 19, Number 1, January 2025 , pages 1-14 DOI: https://doi.org/10.12989/acc.2025.19.1.001 |
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Influence of fiber reinforcement on compressive, flexural and shear responses in pre-stressed concrete beams: An experimental investigation |
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Kaifeng Xing and Peng Chen
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| Abstract | ||
| Inclusion of fiber reinforcement significantly influences the load-deformation response of pre-stressed concrete beams, more specifically the flexural and shears behavior. Although significant studies have been performed in the past on fiber reinforced ordinary concrete beams, investigation on pre-stressed concrete beams is rather limited. The current work involves conducting extensive laboratory model tests wherein the inter-relationship between the proportion of fiber reinforcement and the flexural and shear behavioural trends of pre-stressed concrete beams. The fibers used are two types: steel and macro-synthetic. The fibers at selected proportion by volume is included in the concrete members and a series of tests including compressive strength, fracture behaviour analysis, shear resistance testing and flexural behaviour testing. The experimental results indicated that addition of fibers increased the compressive strength from 4.2% to 23.8%, flexural strength from 6.9% to 14.5%, and restriction to shear cracks in terms of width and extent. A set of important conclusions were drawn from the entire work. | ||
| Key Words | ||
| fiber reinforcement; flexural strength; hybrid fibers; pre-stressed concrete; shear behaviour | ||
| Address | ||
| School of Architecture and Civil Engineering, Huang Shan University HuangShan City, Anhui Province,245041, China. | ||
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