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An Analytical Study of Flange Local Buckling of Horizontally Curved I-Girders for Estimate Resonable Stress Gradient
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 Title & Authors
An Analytical Study of Flange Local Buckling of Horizontally Curved I-Girders for Estimate Resonable Stress Gradient
Kim, Hee-Soo; Lee, Kee-Sei; Lee, Jeong-Hwa; Choi, Jun-Ho; Kang, Young-Jong;
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 Abstract
Horizontally curved I-girders are subjected to not only bending moments but also torsional moments. The torsional moment of the plate girder is addition of St. Venant torsion and non-uniform torsion. In the flange of I-shaped plate girder, a kind of open-section, the normal stresses is not distributed uniformly due to the non-uniform torsion. Because of that, one of compression flange tip can be yielded faster than the flange of general straight girder. In other words, the flange local buckling strength is decreased when the girder has initial curvature. In this paper, the numerical analysis is conducted to investigate the average stresses in flange for curved girders. The subtended angle and slenderness ratio are taken as parameters.
 Keywords
Curved I-girder;Flange local buckling;Stress gradient;
 Language
Korean
 Cited by
 References
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