Behavior of straight skewed I-girder bridge with skew index approaching 0.3
Kamath, Ajit Manohar
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Refined methods of analysis – 2D grid, plate and eccentric beam or 3D FEA – often are employed for design of I-girder bridges having significant skew. Traditionally, many of these structures have been designed using 1D line girder analysis (LGA). This research presents results from comparative parametric 3D FEA and LGA on a suite of 26 bridges that have a skew index up to and slightly larger than 0.3. Results of the comparative studies are presented for various key response quantities. Recommendations are provided for application of 1D LGA to the design of skewed I-girder bridge structures.