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http://dx.doi.org/10.7781/kjoss.2014.26.2.091

Flange Local Buckling(FLB) for Flexural Strength of Plate Girders with High Performance Steel(HSB 800)  

Kim, Jeong Hun (Power Transmission Laboratory, Korea Electric Power Research Institute)
Kim, Kyoung Yul (Power Transmission Laboratory, Korea Electric Power Research Institute)
Lee, Jeong Hwa (Department of Civil, Environmental & Architectural Engineering, Korea University)
Kim, Kyung Sik (Department of Civil Engineering, Cheongju University)
Kang, Young Jong (School of Civil, Environmental & Architectural Engineering, Korea University)
Publication Information
Journal of Korean Society of Steel Construction / v.26, no.2, 2014 , pp. 91-103 More about this Journal
Abstract
High performance steel for bridges(HSB 800) with a minimum tensile stress of 800MPa was recently developed. However, the study for local buckling behavior of plate girders considering interactive effects of flanges and webs is still insufficient. In this study, the flange local buckling(FLB) strength of plate girders with HSB 800 was evaluated by nonlinear finite element analysis. The flanges and webs of plate girders having I-section were modeled as 3D shell elements in the nonlinear analysis. Initial imperfection and residual stress were imposed on the plate girder. The high performance steel was modeled as a multi-linear material. Thus, parametric study of compression flanges with a compact, noncompact and slender web was performed. The flange local buckling behavior of plate girders was analyzed, and the nonlinear analysis results were compared with the nominal flexural strength of both AASHTO LRFD(2012) and KHBDC LSD(2012) codes.
Keywords
Flange local buckling(FLB); Interactive effect of flange and web; High performance steel(HSB 800); Plate girder; Flexural strength; Nonlinear finite element analysis;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
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