Bridge Load Testing Bridges 1-450N, 486N, 487N, 487S, 489S, 492S Route 13 Part I

Six diagnostic load tests were conducted November of 1999 on five of Delaware's bridges. The purpose of the tests was to evaluate the load carrying capacity of the short span slab bridges. One of the primary variables quantified was the transverse load distribution of the superstructure. Another very important variable was the longitudinal load distribution caused by the underlying concrete slab and fill. The results of from the test indicate that the peak live-load strains were in all cases less than 10% of what was currently being predicted by the existing BRASS model (which is based on typical assumed parameters). The results also indicate better transverse load distribution. Revised bridge load ratings were computed based upon only the improved transverse load distribution by incorporating the experimental distribution factors into existing BRASS files. The resulting ratings are better in all cases.


    • English


    • Status: Completed
    • Sponsor Organizations:

      Delaware Department of Transportation

      P.O. Box 778
      Dover, DE  United States  19901
    • Performing Organizations:

      Delaware Center for Transportation

      University of Delaware
      Newark, DE  United States  19716
    • Principal Investigators:

      Finch, William

      Shenton, Harry

      Chajes, Michael

    • Start Date: 19991101
    • Expected Completion Date: 0
    • Actual Completion Date: 20020630
    • Source Data: RiP Project 18351

    Subject/Index Terms

    Filing Info

    • Accession Number: 01459859
    • Record Type: Research project
    • Source Agency: Delaware Department of Transportation
    • Files: RiP, STATEDOT
    • Created Date: Jan 3 2013 1:14PM