Curvature Ductility Factor of Rectangular Sections Reinforced Concrete Beams
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.
[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 française, 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.
[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 française, 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.
@article{"International Journal of Architectural, Civil and Construction Sciences:56692", author = "Y. Si Youcef and M. Chemrouk", title = "Curvature Ductility Factor of Rectangular Sections Reinforced Concrete Beams", 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 = "Ductility, beam, reinforced concrete, seismic code,
relationship, time bending, resistance, non-linear behavior.", volume = "6", number = "11", pages = "960-6", }