Slender High-Strength Concrete Columns Subjected to Eccentric Loading
Publication: Journal of Structural Engineering
Volume 124, Issue 3
Abstract
An experimental study of the behavior of reinforced concrete columns and results of a nonlinear finite-element analysis are presented. Twelve full-scale columns with square sections were tested under eccentric monotonic loading. Effects of key parameters such as concrete strength, stirrup spacing, slenderness of the columns, and eccentricity of the applied axial load were studied. Significant gains in load capacity were obtained with increased concrete strength. The results of the finite-element analysis correlate well with the results of the tests. A parametric study was made to examine the difference in failure modes for the different concrete strengths, length-to-width ratios, and loading eccentricities. The higher compressive concrete strength was especially advantageous when the load eccentricity was small. When the eccentricity was increased, the strength of the high-strength concrete columns decreased more rapidly than that of the normal-strength columns. However, the high-strength concrete columns still exhibited a greater load capacity than the normal-strength columns.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 124 • Issue 3 • March 1998
Pages: 233 - 240
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Mar 1, 1998
Published in print: Mar 1998
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