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http://dx.doi.org/10.7781/kjoss.2013.25.2.141

Numerical Analysis of Inelastic Lateral Torsional Buckling Strength of HSB800 Steel Plate Girders with Doubly Symmetric Section  

Park, Yong Myung (School of Civil Engineering, Pusan University)
Lee, Kun Joon (School of Civil Engineering, Pusan University)
Choi, Byung Ho (School of Civil and Environmental Engineering, hanbat University)
Hwang, Min O (Research Institute of Industial Science and Technology)
Publication Information
Journal of Korean Society of Steel Construction / v.25, no.2, 2013 , pp. 141-151 More about this Journal
Abstract
In this paper, lateral-torsional buckling(LTB) strength of HSB800 steel plate girder under uniform bending moment was estimated by the nonlinear analysis. Doubly symmetric sections with slender, noncompact and compact webs were considered and the LTB strength in the inelastic range was estimated by taking initial imperfection and residual stress into account. For the numerical analysis, single-panel model and three-panel model were considered and analysis of SM490 steel plate girder was performed to judge the validity of the constructed models by comparing the results with AASHTO, AISC, Eurocode and KHBDC(LSD) codes. By using the same models, LTB strength of HSB800 girder was evaluated and it was acknowledged that the current codes can be applied to HSB800 girders with doubly symmetric section in the inelastic LTB range.
Keywords
HSB800 steel; plate girder; inelastic LTB; doubly symmetric section; single panel model; three panel model;
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Times Cited By KSCI : 3  (Citation Analysis)
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