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Shear capacity in concrete beams reinforced by stirrups with two different inclinations
Highlights A model for estimation of shear strength in RC beams with stirrups having two different inclinations is proposed. The model is formulated on the basis of theory of plasticity and stress field approach. A numerical corroboration against experimental tests and FEM analyses is performed. Parametrical analyses shows the efficiency of double transverse-reinforcement system in enhancing RC beam shear strength.
Abstract A model for the estimation of shear capacity in Reinforced Concrete (RC) beams with web reinforcement is provided by introducing a generalization of classical plastic Nielsen’s model, which is based on the variable-inclination stress-field approach. The proposed model is able to predict the shear capacity in RC beams reinforced by means of stirrups having two different inclinations and longitudinal web bars. A numerical comparison with the results of experimental tests and those provided by a Finite Element Model (FEM) based on the well known theory of Modified Compression Field Theory (MCFT) is carried out for validating the robustness of the proposed model. Finally, a set of parametrical analyses demonstrates the efficiency of the proposed double transverse-reinforcement system in enhancing the shear capacity of RC beams.
Shear capacity in concrete beams reinforced by stirrups with two different inclinations
Highlights A model for estimation of shear strength in RC beams with stirrups having two different inclinations is proposed. The model is formulated on the basis of theory of plasticity and stress field approach. A numerical corroboration against experimental tests and FEM analyses is performed. Parametrical analyses shows the efficiency of double transverse-reinforcement system in enhancing RC beam shear strength.
Abstract A model for the estimation of shear capacity in Reinforced Concrete (RC) beams with web reinforcement is provided by introducing a generalization of classical plastic Nielsen’s model, which is based on the variable-inclination stress-field approach. The proposed model is able to predict the shear capacity in RC beams reinforced by means of stirrups having two different inclinations and longitudinal web bars. A numerical comparison with the results of experimental tests and those provided by a Finite Element Model (FEM) based on the well known theory of Modified Compression Field Theory (MCFT) is carried out for validating the robustness of the proposed model. Finally, a set of parametrical analyses demonstrates the efficiency of the proposed double transverse-reinforcement system in enhancing the shear capacity of RC beams.
Shear capacity in concrete beams reinforced by stirrups with two different inclinations
Colajanni, Piero (author) / La Mendola, Lidia (author) / Mancini, Giuseppe (author) / Recupero, Antonino (author) / Spinella, Nino (author)
Engineering Structures ; 81 ; 444-453
2014-10-06
10 pages
Article (Journal)
Electronic Resource
English
Shear capacity in concrete beams reinforced by stirrups with two different inclinations
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