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http://dx.doi.org/10.7781/kjoss.2016.28.5.355

A Study on Effective Width of Press-Braked Steel Plates with a Free Edge  

Choi, Byung Ho (Dept. of Civil & Environmental Engineering, Hanbat National University)
Cho, Kwang Il (Structure Research Group, POSCO)
Kim, Tae Bong (Dept. of Civil & Environmental Engineering, Hanbat National University)
Publication Information
Journal of Korean Society of Steel Construction / v.28, no.5, 2016 , pp. 355-363 More about this Journal
Abstract
This study numerically investigates buckling behavior of press braked steel plates with a free edge that consists of the upper flange of U-shaped box girder. Since the press-braked plates include a rounded edge, the effective width to thickness ratio of the press-braked upper flange is obscure to determine the nominal compressive strength. This study performed 3D finite element analyses to evaluate an equivalent effective width of cold-formed plate with a free edge. Through the parametric numerical analyses, the elastic buckling stresses of the rounded corner plates were compared with those of general flat plates and then, the equivalent effective width has been estimated. A comparative study with Euler buckling formula speculated in the domestic design specifications has been conducted.
Keywords
Buckling; Effective width-to-thickness ratio; Free-edge plate; Press-braked plate; Structrual Stability;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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