Research Article
Jan 1977
Prediction of Hysteresis of Reinforced Concrete Members
Publication: Journal of the Structural Division
Volume 103, Issue 1
Abstract
The endochronic theory for inelasticity and failure, previously established, is used to predict the response of reinforced concrete beams in cyclic bending at large strains. Cross sections are assumed to remain plain and are subdivided in slices. Existing bending theories must be enhanced by inclusion of transverse normal strain as a third variable, in addition to curvature and transverse shear angle. The forces in stirrups bring concrete under confining hydrostatic pressure, and, according to endochronic theory, this greatly increases ductility and strength and suppresses strain-softening. The theory is applicable to any history of bending moment, shear force, and axial force, and allows the necessary cross-sectional area of stirrups to be calculated. It is most remarkable that a number of test data have been correctly predicted without having to adjust any of the material parameters determined previously from tests of plain concrete. The endochronic theory represents not merely a descriptive model, but a prediction method.
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Published In
Journal of the Structural Division
Volume 103 • Issue 1 • January 1977
Pages: 153 - 167
Copyright
© 1977 American Society of Civil Engineers.
History
Published in print: Jan 1977
Published online: Feb 1, 2021
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Authors
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Zdeněk P. Bažant, M.ASCE
Prof. of Civ. Engrg., Northwestern Univ., Evanston, Ill.
Parameshwara D. Bhat
Grad. Student; Northwestern Univ., Evanston, Ill.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.