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Curvature Ductility Factor of Rectangular Sections Reinforced Concrete Beams

Authors: Y. Si Youcef, M. Chemrouk

Abstract:

The present work presents a method of calculating the ductility of rectangular sections of beams considering nonlinear behavior of concrete and steel. This calculation procedure allows us to trace the curvature of the section according to the bending moment, and consequently deduce ductility. It also allowed us to study the various parameters that affect the value of the ductility. A comparison of the effect of maximum rates of tension steel, adopted by the codes, ACI [1], EC8 [2] and RPA [3] on the value of the ductility was made. It was concluded that the maximum rate of steels permitted by the ACI [1] codes and RPA [3] are almost similar in their effect on the ductility and too high. Therefore, the ductility mobilized in case of an earthquake is low, the inverse of code EC8 [2]. Recommendations have been made in this direction.

Keywords: Relationship, Resistance, Reinforced Concrete, Ductility, Seismic Code, beam, non-linear behavior, time bending

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1334117

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References:


[1] ACI 318. ACI 318. "Building code requirements for structural concrete". 2004.
[2] EC8. Eurocode 8. Conception et dimensionnement des structures pour leur résistance aux séismes et document d'application nationale. s.l. : Normalisation fran├ºaise, Decembre 2000.
[3] RPA 99/V2003. RPA 99/V2003. "Régles Parasismiques Algeriennes". s.l. :Ministére de l'habitat D.T.R B.C 2-48, 2003.
[4] J. G. MacGREGOR. Ductility of structural elements.
[Handbook of concrete engineering]. s.l. : Mac Graw Hill, 1974. pp. 229-247.
[5] H. Nakamura, J. Niwa & T. Tanabe. An analytical evaluation of the ductility of reinforced concrete members.s.l. : Earthquake engineering, tenth world conference, 1992. pp. 4343-4348.
[6] M. M. Ziara, D. Haldane, A. S. Kuttab. Fexural behavior of beams with confinement.ACI structural journal. Jan-Feb 1995. pp. 103-114.
[7] M. S. Al-Haddad. Curvature ductility of reinforced concrete beams under low and high strain rates. ACI structural journal. Oct 1995. pp. 526-534.
[8] R. Park& D. Ruitong. Ductility of doubly reinforced concrete beams sections. ACI structural journal. March-April 1988. pp. 217-225.
[9] Pfrang et al. Pfrang E.O., Siess C.P. and Sozen M.A. Juillet "Load- Moment-Curvature Characteristics of Reinforced Cconcrete Cross Sections". s.l. : Journal of the American Concrete Institute, july 1964. Vol. 61, 7.