Shear Performance of Steel Fiber Reinforced Concrete Beams Without Stirrups: Experimental Investigation

Bui, Tan Trung; Nana, W.S.A.; Doucet-Ferru, B.; Bennani, A.; Lequay, Hervé; Limam, Ali

doi:10.1007/s40999-020-00505-8

Cited by 22 publications

(7 citation statements)

References 27 publications

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“…Nguyen et al [3] found the following results after testing sample groups constructed of SFRC with varying steel fiber contents: (i) When the steel fiber content was raised, the tensile strength of SFRC grew from 8 to 97%; (ii) Unlike traditional concrete, the addition of steel fibers enhanced the ductility response. Likewise, another research work conducted by Bui et al [4] presented that when added steel fibers splitting tensile strength and flexural tensile strength significantly increased by up to 228% and 145%, respectively. Steel fiber addition to beam structures exhibited more ductility than ordinary concrete in the post-peak stage.…”

Section: Introductionmentioning

confidence: 84%

“…Numerous researches have investigated the influence of steel fibers on the ability of concrete structures in flexural and shear capacity based on the improved ductile performance in SFRC [16][17][18][19][20][21]. Particularly, Bui et al [4] further claimed that steel fibers with a high-volume fraction of greater than 1.2% were capable of replacing stirrups to ensure shear capacity because of the similar behavior to traditional RC beams. Additionally, Kwak et al [19] investigated that beams with an a/d ratio of 2.0 failed in a combination of shear and flexure, whereas beams with a higher a/d ratio only failed by flexure.…”

Section: Introductionmentioning

confidence: 99%

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Assessing the shear behavior of steel fiber reinforced concrete beams corroded under chloride attacks

Thao

Tung

Nhan

et al. 2022

STCE

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Steel corrosion affects the failure mechanism of deteriorated reinforced concrete (RC) beams. Meanwhile, there is a lack of research on the shear behavior of corroded RC beams, particularly corroded steel fiber reinforced concrete (SFRC) beams. This paper investigates the shear behavior of corroded SFRC beams with a 1.5 shear span-to-depth ratio. All beam specimens included steel fibers with 50 kg/m3. In particular, tensile longitudinal reinforcements were subjected to a corrosion degree of 16.4%, while stirrups were subjected to an approximately 24.1% corrosion degree. These results are compared to those obtained on a non-corroded beam. The obtained results from the four-point loading tests show that the corroded SFRC beams preserve a softening behavior as opposed to the sudden shear failure of RC beams without steel fibers.

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Section: Introductionmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Assessing the shear behavior of steel fiber reinforced concrete beams corroded under chloride attacks

Thao

Tung

Nhan

et al. 2022

STCE

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“…Tests on the concrete fibre material in both structural and non-structural applications have shown it to be reliable. Ground-and pilesupported slabs, tunnel linings, different precast components, raft foundations, industrial pavement, and intricate architectural forms are some examples of steel fibre-reinforced concrete's practical applications [19].…”

Section: Introductionmentioning

confidence: 99%

Multiscale soft computing-based model of shear strength of steel fibre-reinforced concrete beams

Alzabeebee

Qiu

Nassr

et al. 2023

Innov. Infrastruct. Solut.

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Concrete is weak in tension, so steel fibres are added to the concrete members to increase shear capability. The shear capacity of steel fibre-reinforced concrete (SFRC) beams is crucial when building reinforced concrete structures. Creating a precise equation to determine the shear resistance of SFRC beams is challenging since many factors can influence the shear capacity of these beams. In addition, the precision available equations to predict the shear capacity are examined. The current research aims to examine the available equations and propose novel and more accurate model to predict the shear capacity of SFRC beams. An innovative evolutionary polynomial regression analysis (EPR- MOGA) is utilized to propose the new equation. The proposed equation offered improved prediction and increased accuracy compared to available equations, where it scored a lower mean absolute error ($$\mathrm{MAE}$$ MAE ) and root mean square error ($$\mathrm{RMSE}$$ RMSE ), a mean ($$\mu$$ μ ) close to the optimum value of 1.0 and a higher coefficient of determination ($${R}^{2}$$ R 2 ) when a comparison with literature was conducted. Therefore, the new equation can be employed to assure more resilient and optimized design calculations due to their improved performance.

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“…Bui et al (2020) [10] conducted an experimental program on four beams. They concluded that fibers with volume fraction of 1.27% (100 kg/m3) were capable to replace the traditional transverse reinforcement (stirrups).…”

Section: Introductionmentioning

confidence: 99%

Shear Strength of Fiber Reinforced Concrete (FRC) Beams without Stirrups

Shoukry

Mahmoud²,

El‐Naggar³

et al. 2023

Journal of Engineering Research

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This paper presents the results of twelve shear tests carried out on simply supported rectangular beams, with a shear span to depth ratio (a/d) of 2.4, under a single concentrated load. Six of the beams contained conventional stirrups and six beams were reinforced with steel fibers as web reinforcement. The parameters were: the effect of fiber volume content (0, 0.5, 1.0, and 1.5%), fiber type (end-hooked or corrugated), and the presence of minimum stirrups. The beam span, beam dimensions, shear span to depth ratio (a/d), and percentage of longitudinal reinforcement were all kept constant. Beam deflection, steel strains, crack propagation, and failure modes were recorded for all the tested beams. The test results showed that the shear cracking, and the ultimate shear stress increased with the increase of fiber volume content. When steel fibers with a content of 1.5% were added to the beams with minimum stirrups, the brittle shear failure was changed to ductile flexure failure. The test results were compared with some empirical equations developed to estimate the shear strength of steel fiber reinforced concrete beams without stirrups. The comparison indicated that the equations proposed by Narayanan and Darwish 1987 and Kara 2013 provided the most accurate estimation when compared to the test results.

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Shear Performance of Steel Fiber Reinforced Concrete Beams Without Stirrups: Experimental Investigation

Cited by 22 publications

References 27 publications

Assessing the shear behavior of steel fiber reinforced concrete beams corroded under chloride attacks

Assessing the shear behavior of steel fiber reinforced concrete beams corroded under chloride attacks

Multiscale soft computing-based model of shear strength of steel fibre-reinforced concrete beams

Shear Strength of Fiber Reinforced Concrete (FRC) Beams without Stirrups

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