Ultimate Shear Strength of Rc Beams With High Tension Shear Reinforcement and High Strength Concrete

Kokusho, Seiji; Kobayashi, Kazuo; Mitsugi, Shiro; Kumagai, Hitoshi

doi:10.3130/aijsx.373.0_83

Cited by 11 publications

(4 citation statements)

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“…To verify the accuracy of the proposed analytical model for reinforced high-strength concrete beams, 64 experimental results [24][25][26][27][28][29][30][31][32][33] with 90 • stirrups were collected. All collected specimens were failed by shear before 90% of their predicted flexural yield strength.…”

Section: Prediction Of Shear Strength Of Reinforced High-strength Concrete Beamsmentioning

confidence: 99%

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Prediction of Shear Strength of Reinforced High-Strength Concrete Beams Using Compatibility-Aided Truss Model

Kim

2021

Applied Sciences

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This study proposes an analytical model applicable to the shear analysis of reinforced high-strength concrete beams. The proposed model satisfies the equilibrium and compatibility conditions and constitutive laws of the materials. The proposed model is based on the fixed angle theory and allows the principal stress to rotate as the load increases, so that the RC beams can be analyzed more realistically. High-strength material models were used in the proposed model to consider the characteristics of high-strength concrete. The concrete shear contribution at crack surfaces was calculated from Mohr’s circle. The proposed model considers the effect of bending moment on shear by reducing the amount of longitudinal reinforcement resisting shear. To verify the accuracy of the proposed model, a total of 64 experimental results were collected from the literature. A comparison with previous experimental results confirmed that the proposed model can be predicted relatively accurately with an average of 0.98 and a coefficient of variation of 12.1%.

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Section: Prediction Of Shear Strength Of Reinforced High-strength Concrete Beamsmentioning

confidence: 99%

“…Refs. [30,31]: restrained beams with anti-symmetrical moments and rectangular section. Table 2 shows the prediction results of the analytical models.…”

Section: Prediction Of Shear Strength Of Reinforced High-strength Concrete Beamsmentioning

confidence: 99%

Prediction of Shear Strength of Reinforced High-Strength Concrete Beams Using Compatibility-Aided Truss Model

Kim

2021

Applied Sciences

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“…To check further the applicability of the proposed solution procedure, the experimental peak shear strengths of 170 RC beams [16][17][18][19][20][21][22][23][24][25][26][27][28] reported in the technical literature are compared with their corresponding predicted values obtained using both the new proposed solution procedure and the previous solution procedure of the FA-STM. It is important to note that the shear behaviour of RC beams is different from the shear behaviour of RC panels.…”

Section: Comparison Of Truss Models With Rc Beam Testsmentioning

confidence: 99%

New algorithm for fixed-angle softened-truss model

Lee¹,

Mansour²

2006

Proceedings of the Institution of Civil Engineers - Structures

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The present paper proposes a solution methodology to predict the shear stress-shear strain curves of reinforced concrete (RC) elements (panels) using a truss model. The proposed solution procedure calculates the concrete constitutive relationships by transforming the concrete stresses and strains from the principal direction of concrete stresses to the principal direction of the applied stresses. As a result, the algorithm predicts the shear responses of RC elements having a large difference between the amounts of steel in two perpendicular directions. To check the success of the proposed methodology, the experimental shear stress-strain and shear stress-normal strain curves of 12 RC elements as well as the shear strengths of 170 beams reported in the literature are compared with their corresponding predicted results using the new algorithm of the truss model. The results show that the proposed algorithm accurately predicts the variation of the concrete strain of 12 reinforced elements and the shear strength of 170 beams. INTRODUCTIONThe post-cracking behaviour of a reinforced concrete (RC) member subjected to shear and bending was first simulated by a truss model theory at the turn of the century by Ritter and Morsch. The theory assumes that the cracked concrete separates into a series of struts, so that the shear resistance of the RC member is provided by an internal truss mechanism. Along with the original truss model theory of Ritter and Morsch, many compatibility-aided truss models, such as the compression field theory (CFT, 1,2 modified compression field theory 3 (MCFT)), the rotating-angle softened-truss model (RA-STM 4 ), and the fixed-angle softened-truss model (FA-STM 5,6 ) were developed to predict the shear strengths as well as the deformations of RC membrane elements (panels) subjected to shear and normal stresses.

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“…The collected experimental data included 176 RC beams all having shear reinforcement [5][6][7][14][15][16][17][18][19][20][21][22][23][24][25]. The complete list of the data of the 176 RC beams is presented in Table A1 of the Appendix with the name and reference source of each specimen.…”

Section: Experimental Datamentioning

confidence: 99%

Predicting the shear strength of reinforced concrete beams using artificial neural networks

Mansour

Dicleli

Lee

et al. 2004

Engineering Structures

187

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Ultimate Shear Strength of Rc Beams With High Tension Shear Reinforcement and High Strength Concrete

Cited by 11 publications

References 0 publications

Prediction of Shear Strength of Reinforced High-Strength Concrete Beams Using Compatibility-Aided Truss Model

Prediction of Shear Strength of Reinforced High-Strength Concrete Beams Using Compatibility-Aided Truss Model

New algorithm for fixed-angle softened-truss model

Predicting the shear strength of reinforced concrete beams using artificial neural networks

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