High‐Strength Concrete Columns Confined by Rectangular Ties
Publication: Journal of Structural Engineering
Volume 120, Issue 3
Abstract
This paper presents an experimental study of the behavior of large‐scale high‐strength concrete columns confined by rectangular ties under concentric loading. Effects of key variables such as the concrete compressive strength, the tie yield strength, the tie configuration, the transverse reinforcement ratio, the tie spacing, the longitudinal reinforcement ratio, and the spalling of the concrete cover are studied in this research program. The behavior of high‐strength concrete columns is characterized by the sudden separation of the concrete cover, leading to a loss of axial capacity before the lateral confinement becomes effective. After the concrete is completely spalled, important gains in strength, toughness, and ductility are recorded for the concrete core of well‐confined columns.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 120 • Issue 3 • March 1994
Pages: 783 - 804
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Dec 23, 1992
Published online: Mar 1, 1994
Published in print: Mar 1994
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