Seismic Load Path Effects in Reinforced Concrete Bridge Columns

Research at North Carolina State University NCSU funded by the Alaska Department of Transportation (AKDOT) and Alaska University Transportation Center (AUTC) has investigated the impact of loading history on the definition of strain limit states, as well as the relationship between strain and displacement. The 2009 American Association of State Highway and Transportation Officials (AASHTO) Seismic provisions are a displacement-based document and as a consequence, accurate estimates of displacement at key performance limit states are essential. This research project is the next logical step in the study on load history where the impact of a 2-dimensional load path is investigated. The research will also include a component of study related load path effects on the stability of ductile wall piers. Presented in this proposal is background information regarding the prior study in load history conducted at NCSU, followed by a discussion of the critical issues identified in the literature regarding multi-directional loading and a proposed task-by-task approach to the research program.

  • Supplemental Notes:
    • Testing of remaining 6 columns start February 2017. Previous reports have been received. On schedule for project completion in June 2017.


  • English


  • Status: Completed
  • Funding: $335541
  • Contract Numbers:

    AUTC #14-162

  • Sponsor Organizations:

    Alaska Department of Transportation and Public Facilities

    Research & Technology Transfer
    2301 Peger Road
    Fairbanks, AK  United States  99709-5399
  • Managing Organizations:

    Alaska University Transportation Center

    University of Alaska, Fairbanks
    P.O. Box 755900
    Fairbanks, AK  United States  99775-5900
  • Project Managers:

    Morehouse, Carolyn

  • Start Date: 20150101
  • Expected Completion Date: 20170630
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01613010
  • Record Type: Research project
  • Source Agency: Alaska Department of Transportation and Public Facilities
  • Contract Numbers: AUTC #14-162
  • Files: RiP, STATEDOT
  • Created Date: Oct 7 2016 1:28PM