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FAQs: What is “Distribution Factor – Line Girder Analysis”?

Question

What is “Distribution Factor – Line Girder Analysis”?

Answer

BrR contains a Distribution Factor – Line Girder Analysis feature that computes live load distribution factors. This feature allows users to analyze a bridge for both standard gage vehicles and non-standard gage vehicles. A 3D and a 2D finite element analysis of the superstructure is performed and moment and shear live load distribution factors are computed for a vehicle traveling along user-specified paths along the length of the superstructure. Moment and shear distribution factors are computed by dividing the 3D model moments and shears by the 2D model moments and shears. A traditional girderline analysis of the beam is then performed using this distribution factor(s).

 

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Non-Technical

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Created at 5/21/2013 9:24 PM by Thomason, Jamie
Last modified at 3/3/2016 1:43 PM by Uong, Ethan