Cyclically and biaxially loaded reinforced concrete slender columns

Document Type

Article

Publication Date

5-1-2000

Abstract

The objective of this column study is to explore and examine the behavior of various cyclic compressive load levels on the ultimate strength, deflection, and moment-curvature characteristics of reinforced concrete slender columns with bidirectional eccentricities. Furthermore, a part of this research is to develop a numerical analysis that can simulate the behavior of reinforced concrete columns under combined biaxial bending and cyclic axial compression. For the experimental study, 4 ft long reinforced concrete columns are tested under cyclic axial compression with bidirectional eccentricities. The main parameters of the column tests were the bidirectional eccentricities and its angle to the reference axis. The load pattern considered in this experimental study was cyclical, and the applied load was a full loading of cycles that was loading up to the envelope curve and then unloading down to nearly zero stress level It should be noted that the cyclic axial compressive load with bidirectional eccentricities considered was in the longitudinal direction, but not in the transverse direction, with respect to the column axis. The experimental ultimate load, load-deflection, and moment-curvature curves are compared with the prediction from a computer model developed in the present study.

Identifier

0034191702 (Scopus)

Publication Title

ACI Structural Journal

ISSN

08893241

First Page

444

Last Page

454

Issue

3

Volume

97

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