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http://dx.doi.org/10.7781/kjoss.2014.26.2.119

A Proposal for an Evaluation of Flexural Resistance of Longitudinally Stiffened Plate Girder with Slender Web  

Park, Yong Myung (Department of Civil Engineering, Pusan National University)
Lee, Kun Joon (Department of Civil Engineering, Pusan National University)
Choi, Byung Ho (School of Civil and Environmental Engineering, Hanbat University)
Back, Sung Yong (School of Civil and Urban Engineering, Inje University)
Publication Information
Journal of Korean Society of Steel Construction / v.26, no.2, 2014 , pp. 119-132 More about this Journal
Abstract
In this paper, a series of numerical analyses were performed to evaluate the flexural resistance of steel plate girder with longitudinally stiffened and slender web. The SM490 steel was adopted for the study and the flexural resistances evaluated from the numerical analysis were compared with those suggested by the AASHTO LRFD and the Eurocode 3 codes, respectively. It was found that the AASHTO LRFD code could considerably underestimate the flexural resistance as the web slenderness becomes smaller. This comes from the fact that current AASHTO LRFD code does not consider a possible increase of slenderness limits for compact and noncompct web, and also an additional effect of web restraint on the rotation of compression flange in longitudinally stiffened web. Therefore, the slenderness limits of web and flange have been newly proposed for the plate girders with longitudinally stiffened web and it is analytically verified that the flexural resistance can be appropriately estimated by applying the proposed slenderness limits to the AASHTO LRFD code.
Keywords
Longitudinal stiffener; Slender web; Plate girder; Flexural strength; Slenderness limits; AASHTO LRFD;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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