Shear Strength of Beams Without Web Reinforcement Containing Deformed Bars of Different Yield Strengths

Mathey, Robert G; Watstein, D

doi:10.14359/7851

Cited by 20 publications

(2 citation statements)

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“…Since then, many researchers [9][10][11][12][13][14][15] have performed concrete beam tests. The experimental beam test used normal-strength and high-strength concrete.…”

Section: Specimens and Parametermentioning

confidence: 99%

Proposed Formula and Comparison of Shear Strengths of Reinforced Concrete Beams Under Various Codes

Rizqyani¹

2022

GEOMATE

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In the paper, the shear strength calculations were carried out in accordance with the SNI 2847:2019, ACI 318M-19, EN 1992-4, NZS 3101.2, and CSA A23.3 to predict the shear strength data from the literature. The number of data used for validation involved 129 experimental concrete beams to generate the predicted shear strengths of the corresponding various beams. After the predicted shear strength results were obtained, the next step was to compare the results of the predicted shear strength using these five available formula codes against the results of the experimental concrete beam test. This study focuses on the investigation of normal-strength and high-strength concrete beams. The comparisons were made to determine the predictive test strength based on which formula has the closest shear strength prediction to the experimental test results. A proposed formula has also been introduced to obtain a more optimal shear strength prediction. The results indicate that NZS 3101.2 provides better results compared to the other five formulations among the codes. In contrast, CSA A23.3 is the most conservative formulation. The newly developed formula is [0.66( w ) 1/3 (f c ) 0.53 +(N u /6A g )]b w d, which modifies the ACI formula, to improve the prediction and maintain it on the safe side of the majority, and the proposed formulation improves the prediction compared with others.

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“…Since then, many researchers [9][10][11][12][13][14][15] have performed concrete beam tests. The experimental beam test used normal-strength and high-strength concrete.…”

Section: Specimens and Parametermentioning

confidence: 99%

Proposed Formula and Comparison of Shear Strengths of Reinforced Concrete Beams Under Various Codes

Rizqyani¹

2022

GEOMATE

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“…In cases where the major tensile stresses in the shear region of a RC beam exceed the concrete tensile strength, diagonal cracks finally cause failure. Several experimental and theoretical studies have confirmed that the key parameters affecting the response of RC beams are the type and direction of external loads, the shape and dimensions of the specimen, the strength of the concrete and steel reinforcement, the shear span to depth ratio and the reinforcement arrangement [1][2][3][4][5][6][7][8]. Depending on the factors, the ultimate loads and failure modes can change.…”

Section: Introductionmentioning

confidence: 98%

Hybrid Fibres as Shear Reinforcement in High-Performance Concrete Beams with and without Openings

Smarzewski¹

2018

Applied Sciences

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The article presents the results of research work aimed at testing the use of hybrid steel-polypropylene fibre as a strengthening solution to upgrade reinforced high-performance concrete (HPC) beams with openings (BO1 ÷ BO3) and without (B1 ÷ B3). A total of six simply supported beams were tested under four-point bending. The test beams had a cross section of 200 × 400 mm and a total length of 2500 mm. Two square openings in each shear span were located symmetrically about the mid-point in three BO beams. Research was carried out with regard to the quantity and type of reinforcement. Beams B1 and BO1 were constructed with traditional reinforcement made of steel bars. As regards the remaining beams, instead of stirrups and compressive bars, fibre reinforcement of varying fibre volume contents was applied. In the analysis, a non-contact system for three-dimensional measurements of strain and displacement was used. Analysis of the behaviour of the beams under static load was based on the measurements of cracks, deflections and strains. The test results show that the first diagonal crack and the ultimate shear strength increase significantly as the fibre content increases. The above study showed that the hybrid fibres have a positive effect, reducing crack width and ensuring an increase in the load-bearing capacity.

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Prediction of shear strength of RC deep beams based on interpretable machine learning

Wang

Zhao

et al. 2023

Construction and Building Materials

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Shear Strength of Beams Without Web Reinforcement Containing Deformed Bars of Different Yield Strengths

Cited by 20 publications

References 0 publications

Proposed Formula and Comparison of Shear Strengths of Reinforced Concrete Beams Under Various Codes

Proposed Formula and Comparison of Shear Strengths of Reinforced Concrete Beams Under Various Codes

Hybrid Fibres as Shear Reinforcement in High-Performance Concrete Beams with and without Openings

Prediction of shear strength of RC deep beams based on interpretable machine learning

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