Exterior Bridge Girder Fender System for Over-height Vehicle Impact Protection

Over-height vehicle impacts on bridges are one of the major problems for the Louisiana Department of Transportation (LADOTD), according to the Bridge Design office staff. Many impacts occur every year, with each impact often exceeding $1,000,000 in costs for girder replacement/repair. Due to the high economic loss induced by such damages, there is an immediate need to address the severity of impact damage in exterior girders. A few published studies in the literature utilized materials with energy-absorbing characteristics to design exterior girder protection systems that minimize the damage from over-height vehicle impacts; these efforts were only partially experimentally validated. While previous studies focused on the analytical evaluation of forces acting on the system and analyzing the performance of these systems when subjected to the impact loads, no extensive experimental evidence about the performance of the proposed systems is available. The objective of this study is to experimentally evaluate a protection system for bridges vulnerable to over-height vehicle impacts. Experiments will be conducted on different high energy-absorbing materials, and layered laminates will be conducted to identify the most optimal solution for exterior girder fender system. Drop-hammer impact tests will be conducted on reduced-scale specimens to validate the effectiveness of the selected fender system in a real-world scenario.

    Language

    • English

    Project

    • Status: Active
    • Funding: $134372
    • Contract Numbers:

      18STLSU12

    • Sponsor Organizations:

      Office of the Assistant Secretary for Research and Technology

      Intelligent Transportation Systems Joint Program Office
      Department of Transportation
      Washington, DC  United States  20590

      Office of the Assistant Secretary for Research and Technology

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

      Office of the Assistant Secretary for Research and Technology

      Intelligent Transportation Systems Joint Program Office
      Department of Transportation
      Washington, DC  United States  20590

      Transportation Consortium of South-Central States

      Louisiana State University
      Baton Rouge, LA  United States  70803
    • Project Managers:

      Hassan, Marwa

    • Performing Organizations:

      University of Louisiana at Lafayette

      104 University Circle
      Lafayette, LA  United States  70503
    • Principal Investigators:

      Tatar, Jovan

      Gopu, Vijaya

    • Start Date: 20180315
    • Expected Completion Date: 20190915
    • Actual Completion Date: 0
    • USDOT Program: University Transportation Centers

    Subject/Index Terms

    Filing Info

    • Accession Number: 01664066
    • Record Type: Research project
    • Source Agency: Transportation Consortium of South-Central States
    • Contract Numbers: 18STLSU12
    • Files: UTC, RiP
    • Created Date: Mar 17 2018 6:22PM