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Title: Fabrication of unsymmetrical curved plate girders by cold bending
Authors: Gergess, Antoine 
Sen, Rajan
Affiliations: Department of Civil and Environmental Engineering 
Keywords: Cold bending
Design aids
Standardized procedure
Subjects: Plastics
Plate girders
Issue Date: 2005
Part of: Journal of constructional steel research
Volume: 61
Issue: 10
Start page: 1353
End page: 1372
A proprietary cold bending method was recently developed for the fabrication of the steel girders in the Miami Metromover. In an earlier paper, the authors developed a simplified analysis for this system that could be used for curving symmetrical girders. This paper extends this analysis to unsymmetrical girders typically used in bridge construction where the top flange is smaller than the bottom flange. Guidelines are proposed that set limits on the maximum load and permanent residual strains that develop during the curving operation to ensure they are within acceptable norms. These are integrated in a standardized procedure based on actual practice. A comprehensive numerical example is included to illustrate this procedure. This uses design aids specially developed to simplify calculations in the steel shop.
DOI: 10.1016/j.jcsr.2005.03.005
Ezproxy URL: Link to full text
Type: Journal Article
Appears in Collections:Department of Civil and Environmental Engineering

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