ADOT Strut-and-Tie Modeling Design Guidance

The advent of strut-and-tie modeling offers an alternative bridge design that can be used in certain situations to more closely address the actual conditions a bridge will experience while in service. Cost savings may potentially result from efficiently placing reinforcing steel in the locations of the beam that need it, rather than the more uniform spacing across the concrete beam called for with more traditional designs. The placement of the steel within the concrete beam may also result in more durable concrete with fewer and less severe cracks after the bridge has been put under load; this means the safe and effective service life of the bridge is extended. Using strut-and-tie procedures offers potential advantages, many of which are general in nature and give designers significant flexibility. Often, multiple design alternatives can be developed, and each is acceptable. Thus, ADOT seeks to research and develop the guidance criteria needed to ascertain which—and when—structures would most benefit from the use of strut-and-tie modeling and incorporate those criteria into the ADOT Bridge Design Guidelines.

    Language

    • English

    Project

    • Status: Active
    • Funding: $104,405.92
    • Contract Numbers:

      SPR-782

    • Sponsor Organizations:

      Arizona Department of Transportation Research Center

      206 S. 17th Avenue
      ADOT Research Center
      Phoenix, AZ  United States  85007
    • Managing Organizations:

      Arizona Department of Transportation Research Center

      206 S. 17th Avenue
      ADOT Research Center
      Phoenix, AZ  United States  85007
    • Project Managers:

      Stone, William

    • Performing Organizations:

      Northern Arizona University

      Civil and Environmental Engineering
      PO box 15600
      Flagstaff, Arizona  United States  86011
    • Principal Investigators:

      Tuchscherer, Robin

    • Start Date: 20230731
    • Expected Completion Date: 20250701
    • Actual Completion Date: 0
    • USDOT Program: Advanced Research

    Subject/Index Terms

    Filing Info

    • Accession Number: 01831508
    • Record Type: Research project
    • Source Agency: Arizona Department of Transportation
    • Contract Numbers: SPR-782
    • Files: RIP, STATEDOT
    • Created Date: Dec 22 2021 7:19PM