Over-height vehicle impact with bridge girders having different boundary conditions

The majority of bridges in the US were constructed using prestressed concrete systems. Collisions between over-height trucks and bridges are common accidents. Based on an unpublished survey carried out by the PI, approximately one such accident occurs weekly across the U. S. Limited research, however, carried out to investigate the performance of bridge girders subjected to impact loads. This proposal aims to investigate the performance of prestressed bridge girders subjected to vehicle collision. The research will complement an ongoing pooled-funded project carried out by the PI to investigate the same issue. This MATC-funded project focuses on the effect of the concrete deck on impact testing of prestressed girders. In particular, three prestress girders having different torsional constraints will be investigated. All girders will be laterally constrained at both ends. Furthermore, the first girder will not be constrained against any torsional rotation. The torsional rotation of the second girder will be constrained at both ends. The third specimen will consist of multiple prestressed girders connected using a rigid reinforced concrete deck. The three specimens will be subjected to impact loads that cause different levels of damage. The impact load will be imposed using a cart that slides on a rail. The tests will determine the effects of the torsional constraints on the damage level and impact forces.

Language

  • English

Project

  • Status: Active
  • Funding: $135894
  • Contract Numbers:

    69A3551747107

  • 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:

    Mid-America Transportation Center

    University of Nebraska-Lincoln
    2200 Vine Street, PO Box 830851
    Lincoln, NE  United States  68583-0851
  • Project Managers:

    Stearns, Amy

  • Performing Organizations:

    Missouri University of Science & Technology, Rolla

    Department of Engineering
    202 University Center
    Rolla, MO    65409
  • Principal Investigators:

    ElGawady, Mohamed

  • Start Date: 20220201
  • Expected Completion Date: 20230630
  • Actual Completion Date: 0
  • USDOT Program: University Transportation Centers Program
  • Source Data: RiP Project 91994-111

Subject/Index Terms

Filing Info

  • Accession Number: 01844448
  • Record Type: Research project
  • Source Agency: Mid-America Transportation Center
  • Contract Numbers: 69A3551747107
  • Files: UTC, RIP
  • Created Date: Apr 29 2022 3:33PM