Two impact studies on a small-span, composite girder highway bridge have given widely scattered impact fractions. Field strains were used to measure maximum mid-span bending moments for 170 trucks in normal traffic, and these were compared with equivalent static values computed from axle weights measured by a weighbridge. Large impact values occurred for both light and heavy vehicles and were repeated in two independent series of tests. The scatter of the results suggests that impact is vehicle dependent, and that it may vary with suspension geometry. Possible causes of high impact are discussed.


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    Title :

    Impact Studies on a Small Composite Girder Bridge


    Contributors:

    Publication date :

    1984


    Size :

    40 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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