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Fire Performance and Post-fire Strength of Steel Plate Girder Bridges

Speaker: Jonathan Glassman, Graduate Student
Series: MMS Brown Bag Seminars
Location: Engineering Quad E219
Date/Time: Tuesday, February 5, 2013, 12:30 p.m. - 1:30 p.m.

Abstract:

When it comes to loading events, fire is not one that is traditionally associated with highway bridges. On the contrary, recent data indicates that bridge fires pose a significant threat, with approximately three times as many bridge failures due to fire as opposed to earthquakes. Bridge design specifications related to fire are very limited, as are post-fire assessment schemes to determine if a fire-damaged bridge has enough strength to resume carrying traffic. Steel plate girder bridges are particularly vulnerable to fire damage and are thus the focus of my current research. I will present recent work that examines how the phenomenon of web shear buckling may influence bridge fire performance, along with physical experiments that are being designed to study both fire performance and post-fire strength.