Validation of a Modified Steel Bar Model Incorporating Bond-Slip for Seismic Assessment of Concrete Structures
Publication: Journal of Structural Engineering
Volume 138, Issue 11
Abstract
In this paper the implementation and validation of a modified steel bar model including bond-slip of longitudinal bars that was proposed in a companion paper is discussed. The model is developed on the key assumption of linear slip field along the steel bar with different configurations at the ends of the bar. The simplified model is capable of predicting the axial slip displacement with suitable accuracy compared with a refined model but with considerably fewer computational steps. The proposed model avoids nested iterations in the context of fiber model discretization of a section that requires the representation of all actions in terms of stress and strain. The model is applied to two component tests—one with poor and another with improved reinforcing detailing. Findings from the simulations indicate that the proposed model is more suitable for use in connections with poor detailing and pronounced slip in the plastic hinge zones.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 138 • Issue 11 • November 2012
Pages: 1351 - 1360
Copyright
© 2012 American Society of Civil Engineers.
History
Received: Jun 15, 2011
Accepted: Feb 17, 2012
Published online: Feb 22, 2012
Published in print: Nov 1, 2012
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