Research Article
Jul 1971
Flexural Members with Confined Concrete
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VIEW THE REPLYAuthors: Dudley Charles Kent and Robert ParkAuthor Affiliations
Publication: Journal of the Structural Division
Volume 97, Issue 7
Abstract
Existing experimental evidence for the stress-strain curve for concrete confined by transverse steel hoops or spirals is examined and used to determine the moment-curvature characteristics of flexural members with confined concrete. The stress-strain curve for confined concrete is represented by a parabola up to maximum stress, a linear falling branch followed by a straight horizontal portion. The slope of the linear falling branch is found as a function of the volume and spacing of the hoop steel and the strength of the concrete. The compressive stress block parameters for flexural members with different levels of strain at the extreme compression fiber and quantities of confining steel are found from the proposed stress-strain curve. The examination of the moment-curvature characteristics of beams with confined concrete showed that the quantity of confining steel only has a significant effect on the behavior of members with a high tension steel content and a low compression steel content.
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Published In
Journal of the Structural Division
Volume 97 • Issue 7 • July 1971
Pages: 1969 - 1990
Copyright
© 1971 American Society of Civil Engineers.
History
Published in print: Jul 1971
Published online: Feb 1, 2021
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Authors
Affiliations
Dudley Charles Kent
Programmer Analyst, Systems and Programmes Ltd, Lower Hutt, New Zealand
Robert Park
Prof. of Civ. Engrg., Univ. of Canterbury, Christchurch, New Zealand
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