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Flexure and Shear Interaction in Steel I-Girders
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.
Flexure and Shear Interaction in Steel I-Girders
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.
Flexure and Shear Interaction in Steel I-Girders
Lee, Sung C. (author) / Lee, Doo S. (author) / Yoo, Chai H. (author)
Journal of Structural Engineering ; 139 ; 1882-1894
2013-10-15
132013-01-01 pages
Article (Journal)
Electronic Resource
English
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