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Title: Finite element modelling of a cold curved steel plate girder
Authors: Rishmany, Jihad 
Tawk, Issam 
Gergess, Antoine 
Affiliations: Department of Mechanical Engineering 
Department of Mechanical Engineering 
Department of Civil and Environmental Engineering 
Keywords: Cold bending
Steel girder
Finite element
Lateral offsets
Residual stresses
Plastic strains
Subjects: Flanges
Issue Date: 2017
Part of: Inrternational journal of structural engineering
Volume: 9
Issue: 1
Start page: 1
End page: 25
Cold bending is a cost-effective solution that is sometimes used for curving structural steel girders. Current usage for bridge structures is limited to projects that fall outside the jurisdiction of AASHTO (American Association of State Highway and Transportation Officials) because of the lack of technical knowledge surrounding this technique. This paper presents results from a three-dimensional finite element model to assess the structural behavior exhibited by steel girders during bending for a proprietary cold curving system. A non-linear FE model is validated against measured data obtained from a previously tested girder. The FE model is extended to explore the performance of all structural components of the girder during bending such as deformations in flanges and web, residual stresses and plastic strains. Findings from this paper provide a framework for accurately predicting the cold bent geometry and how to incorporate residual stresses and plastic strains in the design of curved girders.
Type: Journal Article
Appears in Collections:Department of Mechanical Engineering

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