Repairable Precast Bridge Bents for Extreme Events

For conventional RC bridges, the columns are usually the main source of ductility during an earthquake. Minor damages can be repaired but excessive damages such as core crushing, bar buckling, and/or bar fracture are hard to repair. Even though current practice is successful in attaining the no-collapse objective, a new design paradigm is needed to minimize bridge damage incorporating low- to no-damage techniques. The benefit can be enhanced if those low-damage technologies are combined with precast techniques to accelerate bridge construction. The main goal of the proposed pilot and feasibility work is to develop new details for precast bridge columns, which significantly accelerate bent construction and minimize the post-earthquake column damage to a few hairline cracks. The only component that is allowed to damage is detachable exposed reinforcement in the column plastic hinges. The exposed bars can be quickly replaced with new ones after extreme events, if needed.

Language

  • English

Project

  • Status: Active
  • Funding: $134444
  • Contract Numbers:

    69A3551947137

  • Sponsor Organizations:

    Transportation Infrastructure Durability & Life Extension

    Washington State University
    Civil & Environmental Engineering
    Pullman, Washington  United States  99164

    South Dakota State University, Brookings

    Department of Civil and Environmental Engineering
    P.O. Box 2219
    Brookings, SD  United States  57007

    Office of the Assistant Secretary for Research and Technology

    University Transportation Centers Program
    Department of Transportation
    Washington, DC  United States  20590
  • Managing Organizations:

    Transportation Infrastructure Durability & Life Extension

    Washington State University
    Civil & Environmental Engineering
    Pullman, Washington  United States  99164
  • Project Managers:

    Kline, Robin

  • Performing Organizations:

    South Dakota State University, Brookings

    Department of Civil and Environmental Engineering
    P.O. Box 2219
    Brookings, SD  United States  57007
  • Principal Investigators:

    Tazarv, Mostafa

  • Start Date: 20210522
  • Expected Completion Date: 20220522
  • Actual Completion Date: 20220522
  • USDOT Program: University Transportation Centers
  • Subprogram: Transportation Infrastructure Durability & Life Etension

Subject/Index Terms

Filing Info

  • Accession Number: 01773724
  • Record Type: Research project
  • Source Agency: National Center for Transportation Infrastructure Durability and Life-Extension
  • Contract Numbers: 69A3551947137
  • Files: UTC, RIP
  • Created Date: Jun 4 2021 1:12PM