Hybrid Bridge Bents Using Post-tensioned Precast Columns for Accelerated Bridge Construction in High Seismic Regions

Seismic resilience of bridges improves safety and livability of communities. The State of Utah is likely to experience strong earthquakes. Successful completion of the project will ensure that the proposed method of constructing bridges will improve seismic resilience of bridges for strong earthquakes thus preserving the existing transportation system. The project investigates a bridge bent with self-centering precast concrete columns for Accelerated Bridge Construction (ABC) in high seismic regions. The proposed hybrid system consists of post-tensioned precast concrete columns in a two-column bridge bent with one or two Buckling Restrained Braces (BRBs) as external energy dissipation devices. The proposed activity involves testing and analysis of a bridge bent under cyclic loads built with the proposed system. It is expected that the precast columns will remain repairable after strong earthquakes. The BRB devices could be replaced after the earthquake whereas the gravity load bearing frame should remain undamaged.

Language

  • English

Project

  • Status: Active
  • Funding: $236090
  • Contract Numbers:

    69A3551747108

  • Sponsor Organizations:

    Office of the Assistant Secretary for Research and Technology

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

    Mountain-Plains Consortium

    North Dakota State University
    P.O. Box 6050, Department 2880
    Fargo, ND  United States  58108-6050
  • Project Managers:

    Kline, Robin

  • Performing Organizations:

    University of Utah

    Department of Civil and Environmental Engineering
    110 Central Campus Drive Suite 2000
    Salt Lake City, UT  United States  84112
  • Principal Investigators:

    Pantelides, Chris

  • Start Date: 20190112
  • Expected Completion Date: 20220731
  • Actual Completion Date: 0
  • USDOT Program: University Transportation Centers Program
  • Source Data: MPC-588

Subject/Index Terms

Filing Info

  • Accession Number: 01691229
  • Record Type: Research project
  • Source Agency: Mountain-Plains Consortium
  • Contract Numbers: 69A3551747108
  • Files: UTC, RiP
  • Created Date: Jan 23 2019 12:12PM