Flexure and Shear Interaction in Steel I-Girders
Publication: Journal of Structural Engineering
Volume 139, Issue 11
Abstract
AASHTO LRFD and AISC specifications have adopted Basler’s interaction equation, which was formulated for noncompact sections without considering shear buckling. AASHTO LRFD specifications, however, have completely neglected the interaction effect of bending on shear strength since the 3rd edition in 2004. AISC LRFD specifications followed suit with the 2005 edition. This study was aimed at investigating interaction behaviors in noncomposite I-girders and developing new interaction equations without considering shear buckling. Also, a simple and universally applicable methodology was proposed for web panels whose failures were associated with shear buckling. The interaction should not be ignored when web failures are governed by yielding because of combined bending and shear. Otherwise, the shear capacity of the web panel could be grossly overestimated, thereby compromising the safety of the girder.
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Acknowledgments
Support for this research project from the National Research Foundation of Korea, Grant No. NRF–2012R1A2A2A01003990, is gratefully acknowledged. Do Hyeong Kim, Ph.D. Student of Dongguk University, is acknowledged for his assistance in collecting and analyzing experimental test data.
References
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 139 • Issue 11 • November 2013
Pages: 1882 - 1894
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Jan 12, 2012
Accepted: Sep 25, 2012
Published online: Oct 15, 2013
Published in print: Nov 1, 2013
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