Instability of Longitudinal Bars in RC Columns
Publication: Journal of Structural Engineering
Volume 114, Issue 2
Abstract
The collapse of reinforced concrete structural elements subjected to compression is linked to the instability of the reinforcement bars. This phenomenon may occur in the longitudinal region between two consecutive hoops, or may involve a number of hoops, deforming them through tension until they fail. A criterion is given which makes it possible to determine the unknown length of the region of longitudinal reinforcement involved, in relation to the geometrical and mechanical characteristics of the column. The critical load is then calculated assuming the configuration of a compressed straight bar with built‐in ends, bound on unilateral elastic supports. A comparison with the results obtained experimentally by other authors makes it possible to assess the reduction coefficient to apply to the theoretical values deduced.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 114 • Issue 2 • February 1988
Pages: 445 - 461
Copyright
Copyright © 1988 ASCE.
History
Published online: Feb 1, 1988
Published in print: Feb 1988
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