Development and Validation of a Generalized Biaxial Hysteresis Model
Publication: Journal of Engineering Mechanics
Volume 133, Issue 2
Abstract
Biaxial flexural interaction has been known to significantly affect, in many cases magnify, structural response in the inelastic range. Compared to uniaxial cases, the distinct characteristics of biaxial hysteresis curves often observed are negative stiffness and rounded corners of the curves near the time instants of unloading. Developed based on the widely used Bouc-Wen model, this paper presents a generalized biaxial smooth hysteresis model that takes into account the commonly observed hysteretic characteristics of strength and stiffness degradation, asymmetry in ultimate positive and negative forces, pinching, and those exclusively found in biaxial interaction. The capabilities of the developed model are illustrated by comparing the model results to the results of two cyclic and two quasi-static reinforced concrete column tests.
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Acknowledgments
The first writer is grateful for the support of this collaborative study by the Australian Academy of Science under an international scientific collaboration program UNSPECIFIEDRI-82-03/04.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 133 • Issue 2 • February 2007
Pages: 141 - 152
Copyright
© 2007 ASCE.
History
Received: Oct 24, 2005
Accepted: Jul 17, 2006
Published online: Feb 1, 2007
Published in print: Feb 2007
Notes
Note. Associate Editor: George Z. Voyiadjis
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