Recommendation for Improved Steel Design (for Bridges) [B10]

This session is comprised of two presentations regarding improved design recommendations for steel bridges:

Traditionally, cross-frames for straight steel I-girder bridges have been designed with consideration of little more than wind loads and individual member slenderness criteria. This session will include a discussion of the practical implementation of Yura and Helwig's guidelines. Additionally, recent implementation of these recommendations by the NCDOT and recommendations published by the PennDOT will be presented.

Florida designers have been required to design for wind loads on partially constructed bridges since 2000 using either a reduced wind pressure or lower load factor on the wind loading included in the AASHTO Specifications. In 2015, the Florida Department of Transportation (FDOT) design requirements for wind load design were updated with revised pressure coefficients based on several years of research and wind tunnel testing. This session additionally look at the development of the current FDOT design for wind load recommendations.

This course is based on a past NASCC session.

You must purchase and pass a quiz to receive a PDH certificate for this course.

Videos

Recommendations for Improved Steel Design