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.

• Record URL:
  https://tridurle.wsu.edu/repairable-precast-bridge-bents-for-extreme-events/

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: 20221231
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers
• Subprogram: Transportation Infrastructure Durability and Life Extension

Subject/Index Terms

• TRT Terms: Bents; Bridge design; Columns; Earthquake resistant design; Maintenance; Precast concrete
• Subject Areas: Bridges and other structures; Design; Maintenance and Preservation;

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 5 2021 5:37PM