Stress and Strain in Curved Noncracked Concrete Members
Publication: Journal of Structural Engineering
Volume 120, Issue 2
Abstract
A method of analysis of instantaneous and time‐dependent stresses and strains in prestressed noncracked cross sections of curved members is presented. The procedure is an extension of an existing method of analysis that applies to straight members. The analysis is based on the assumptions that plane cross sections remain plane after deformation and that stress‐strain relations for concrete and steel are linear. After prestress transfer, the changes at any fiber in concrete and steel strain are equal. Effects of creep and shrinkage of concrete and relaxation of prestressed steel are accounted for, without the need to precede the analysis by an estimate of prestress loss.
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References
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Ghali, A. (1986). “A unified approach for serviceability design of prestressed and nonprestressed concrete structures.” PCI J., 31(2), 118–137.
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Ghali, A., and Favre, R. (1986). Concrete structures: Stress and deformations. Chapman and Hall, New York, N.Y.
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Ghali, A., and Trevino, J. (1987). “Relaxation of steel in prestressed concrete.” PCI J., 30(5), 82–94.
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Timoshenko, S. (1946). Strength of materials Part II. 2nd Ed., Van Nostrand, 71.
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Trost, H. (1967). “Auswirkungen des Superpositionspringzips auf Kriechen und Relaxations Probleme bei Beton and Spannbeton.” Beton and Stahlbetonbau, 62(10), 230–238.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 120 • Issue 2 • February 1994
Pages: 527 - 537
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Feb 1, 1993
Published online: Feb 1, 1994
Published in print: Feb 1994
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