Analysis of the shear strength of hybrid materials bars in reinforced concrete beams without stirrups

Shoeib, Ata El-kareim; EL-Hashmy, Awad M.; Arafa, Ahmed; Sedawy, Ahmed S.

doi:10.1016/j.matpr.2021.10.273

Cited by 1 publication

(4 citation statements)

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“…The default iterative method (Newton-Raphson) analyzes the numerical solution with suitable load and displacement convergence criteria. This default method breaks the load steps into several sub-steps and updates the stiffness matrix of the nonlinear solution for all iterations (Shoeib et al, 2022;Wolanski, 2004;Vasudevan and Kothandaraman, 2014a, b). The numerical analysis is continuous until a predefined load and displacement convergence criteria are satisfied.…”

Section: E C 5 Youngs Modulus Of Concrete In Mpamentioning

confidence: 99%

“…A 3D solid cushion and support plates are modeled using SOLID185. It is an eight-node element with x, y and z translational DOF per node (Xiaoming et al ., 2012; Shoeib et al ., 2022). The compressive nonlinear stress-strain behavior of concrete is modeled by the Desayi and Krishnan constitutive law as given in equation (1) (Hussein et al ., 2021; Ozcan et al ., 2009).…”

Section: Numerical Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The authors stated that the FE models satisfactorily captured the load-deflection history and cracked patterns identical to the tested beam. Numerical models are constructed to verify their experimentally tested hybrid steel−FRP RC beams for shear behavior (Shoeib et al ., 2022). The authors concluded that the hybrid beams predict the load-deflection curve, crack formation and propagation and failure models similar to the experimental beam.…”

Section: Introductionmentioning

confidence: 99%

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Computational modeling and simulations for predicting the nonlinear responses of reinforced concrete beams

Pandimani¹

2023

MMMS

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PurposeThe ultimate capacity and ductility behavior of a reinforced concrete (RC) beam generally depends on its constituent material properties. This study aims to use ANSYS to accentuate the nonlinear parametric finite element (FE) simulations of RC sections under monotonic loading.Design/methodology/approachThe concrete matrix and steel reinforcement are the primary constituent materials of RC beams. The material properties such as tensile reinforcement area, tensile bars yield strength, concrete compressive strength and strain rate in tensile reinforcement at nominal strength have significantly influenced the ultimate response of RC beams. Therefore, these intensive parameters are considered in this study to ascertain their effect on the RC beam's ultimate behavior. The nonlinear response up to the ultimate load capacity and the crack evolutions of RC beams are predicted efficiently.FindingsThe parametric study reveals that increasing the tensile steel reinforcements (from Ast = 213–857 mm2) significantly improves the ultimate load capacity by 229% and yield deflections by 20%. However, it declines the ultimate deflection by 47% and ductility by 56% substantially. Varying the strain limit (?tn = 0.010–0.0015) of tensile reinforcement has proficiently increased the ultimate load-resisting capacity by 20%, whereas the ductility declined by 62%. When the concrete strength increases (from fck = 25–65 MPa), the cracking load increases profoundly by 51%, whereas the ultimate capacity has found an insignificant effect.Originality/valueThe load-deflection response plots extracted from the proposed numerical model exhibit satisfactory accuracy (less than 9% deviation) against the experimental curves available in the literature, which emphasizes the proficiency of the proposed FE model.

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Section: E C 5 Youngs Modulus Of Concrete In Mpamentioning

confidence: 99%