Elevated Temperature Properties of Weathering Steel

In recent decades, bridge fires have become a major concern in the United States (U.S.) Fire hazard in bridges can result in significant economic and public losses. Traffic on fire damaged bridges is usually hard to detour and can significantly affect traffic quality in the region. Further, a severe fire may result in permanent damage or even collapse of the bridge. While the perception may be that it is unlikely that a bridge will collapse under fire, a recent nationwide survey by the New York Department of Transportation (NYDOT) has shown that nearly three times more bridges have collapsed due to fire than earthquakes. New construction of bridges often use "Weathering Steel" (also known as "Corten Steel"), which has a corrosion-retarding effect since the steel forms a protective layer on its surface under the influence of the weather. To date, no information exists on the effect of high temperature (heated and residual) on the mechanical properties of weathering steel. This proposal will develop this knowledge. There are two important reasons to know the high temperature properties of bridge steels: (a) to make a rapid post-fire assessment of a steel girder; and (b) to make informed decisions for potential heat straightening of bridge overpasses that have been affected by fire or have been impacted by a vehicle that exceeds the vertical clearance. This proposal is motivated by bridge fires, although the results can be applied to heat-straightening of impacted bridge girders as well.


  • English


  • Status: Completed
  • Contract Numbers:



  • Sponsor Organizations:

    Center for Advanced Infrastructure and Transportation

    Rutgers University
    100 Brett Rd
    Piscataway, NJ  United States  08854-8058

    New Jersey Department of Transportation

    1035 Parkway Avenue
    Trenton, NJ  United States  08625

    Research and Innovative Technology Administration

    University Transportation Centers Program
    1200 New Jersey Avenue
    Washington, DC  United States  20590
  • Project Managers:

    Szary, Pat

    Lambert, David

  • Performing Organizations:

    Princeton University

    Department of Civil Engineering
    Princeton, NJ  United States  08450
  • Principal Investigators:

    Garlock, Maria

  • Start Date: 20130101
  • Expected Completion Date: 0
  • Actual Completion Date: 20131231
  • Source Data: RiP Project 33644

Subject/Index Terms

Filing Info

  • Accession Number: 01521843
  • Record Type: Research project
  • Source Agency: Center for Advanced Infrastructure and Transportation
  • Contract Numbers: DTRT12-G-UTC16, CAIT-UTC-021
  • Files: UTC, RiP
  • Created Date: Apr 10 2014 1:01AM