Forensic Testing of Prestress Concrete Girders After Forty Years of Service

All across the United States, various state departments of transportation are faced with the problem of an aging infrastructure and insufficient resources to meet the needs. As a result, many bridges are being subjected to service lives that are longer than originally anticipated when originally designed. Understanding the behavior of this aging infrastructure is essential to making judicious decisions with the limited resources. In 2012, the 400 South Overpass in Orem, Utah was scheduled for replacement. This bridge had been in service for over forty years. Approximately 20 years ago the bridge was widened to allow for the increased traffic along this corridor. The decommissioned bridge allowed for a unique opportunity to study the behavior of prestressed concrete bridge girders of the same span length built in accordance to two difference codes. It is proposed to test eight bridge girders (four old and four new) to quantify the behavior. The measured behavior will then be compared with the predicted behavior according to current design standards. The accuracy of current code procedures to predict behavior of girders that have been in service for an extended period of time will be evaluated. Findings will provide tools for judicious bridge management.


    • English


    • Status: Completed
    • Contract Numbers:



    • Sponsor Organizations:

      Center for Advanced Infrastructure and Transportation

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

      Utah Department of Transportation

      4501 South 2700 West
      Project Development
      Salt Lake City, UT  United States  84114-8380
    • Project Managers:

      Szary, Pat

      Scovil, Russ

    • Performing Organizations:

      Utah State University Transportation Center

      Utah State University
      Logan, UT  United States  84322-4110
    • Principal Investigators:

      Barr, Paul

    • Start Date: 20120601
    • Expected Completion Date: 0
    • Actual Completion Date: 20131231
    • Source Data: RiP Project 31904

    Subject/Index Terms

    Filing Info

    • Accession Number: 01521847
    • Record Type: Research project
    • Source Agency: Center for Advanced Infrastructure and Transportation
    • Contract Numbers: DTRT12-G-UTC16, CAIT-UTC-004
    • Files: UTC, RiP
    • Created Date: Apr 10 2014 1:01AM