Publisher : The Korea Academia-Industrial cooperation Society
DOI : 10.5762/KAIS.2015.16.9.6385
Title & Authors
Interaction of Flexure-Torsional by eccentric load in horizontal curved 'I' shape girder Lim, Jeong-Hyeon; Lee, Kee-Sei; Kim, Hee-Soo; Choi, Jun-Ho; Kang, Young-Joung;
With bending moment, torsional moment due to geometric properties as "Initial curvature" acts in horizontally curved I-girder. These behavior causes the secondary effect of bending in minor-axis because of interaction between bending and torsion. The bending and torsion interaction cause a loss of load bearing capacity by induced the early inelastic or plasticity condition in curved girder. Also eccentric load by movements of traffic can increase torsion. However, Equation of interaction between bending and torsion for straight girder, not deal with characteristics of curved girder behavior in previous studies, can be overestimated for ultimate strength in horizontally curved I-girder acting vertical force. Therefore, using more rational, obvious suggestion is required when design curved girder. In this study, we identified the bending-torsional moment interaction for the horizontally curved I-girder of the eccentric load acting by FEM analysis.
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