The report presents the findings of field studies into the impactive loading generated by heavy haul coal traffic on a prestressed concrete girder bridge. The studies were conducted on Denison Creek bridge in Central Queensland, which carries a single ballasted track of continuously welded rail on prestressed concrete sleepers. Various defects were cut into one rail to model real defects such as wheel flats, wheel burns on rails and broken or misaligned rails. Impacts from trains were measured via strain gauge readings taken at girder soffits. The readings show that impacts may often exceed code values. The report discusses the implications for bridge design, referring particularly to partially prestressed structures.


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    Title :

    Effects of Rail Defects on Prestressed Concrete Bridge Live Load Stresses


    Contributors:
    J. F. Muller (author) / P. F. Dux (author)

    Publication date :

    1988


    Size :

    53 pages



    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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