Precast Pier System for Accelerated Bridge Construction in Idaho

This project seeks to test a precast pier system proposed by ITD bridge engineers. The new connection is somewhat similar in appearance to the pipe-pin connection investigated by Zaghi and Saiidi (2009) and funded by Caltrans. However, it would be pipe-fix connection designed to carry full moments expected to develop at the top and bottom of the column. Researchers will compare the performance of the proposed precast pier system with the conventional cast-in-place construction. As part of the project, researchers will determine needed adjustments to cap and footing designs and detailing and, if required, assess the ductile behavior of the proposed connection. If the tests and analysis shows the performance is satisfactory, recommendations will be provided for design guidelines and details that could be then incorporated into the ITD Bridge Design Manual.


  • English


  • Status: Completed
  • Funding: $150000
  • Contract Numbers:

    RP 281

  • Sponsor Organizations:

    Idaho Transportation Department

    P.O. Box 7129, 3311 West State Street
    Boise, ID  United States  83707-1129
  • Project Managers:

    Johnson, Michael

  • Performing Organizations:

    Idaho State University, Pocatello

    921 South 8th Avenue
    Pocatello, ID  United States  83209
  • Principal Investigators:

    Mashal, Mustafa

    Ebrahimpour, Arya

  • Start Date: 20190101
  • Expected Completion Date: 20210630
  • Actual Completion Date: 20210630

Subject/Index Terms

Filing Info

  • Accession Number: 01703624
  • Record Type: Research project
  • Source Agency: Idaho Transportation Department
  • Contract Numbers: RP 281
  • Files: RIP, STATEDOT
  • Created Date: Apr 30 2019 2:51PM