Truck Load Distribution Behavior of the Bridge Street Bridge, Southfield, Michigan

This article presents the major results and details from a structural load test performed on Structure B of the Bridge Street Bridge Deployment Project in Southfield, Michigan. Structure B is the first prestressed concrete bridge in the U.S. to be almost entirely reinforced with carbon fiber reinforced polymer. Structure B is designed to accommodate two traffic lanes and incorporates three 68.9 ft (21 m) long, 27.9 ft (8.5 m) wide spans skewed at an angle of 15 degrees relative to the substructure. There are 12 double-tee beams (four beams per span), each incorporating internal pretensioned tendons and external post-tensioned carbon fiber composite cable tendons. The authors analyzed the measured strains and deflections from various bridge span load configurations for evaluating load distribution behavior. The authors also compared data from a laboratory test of a full-scale prototype double-tee test beam conducted prior to bridge construction with data obtained from the field load test of Structure B. The authors conclude that the three spans of the bridge exhibit similar load distribution behavior. They note that, as determined from the measured strain response in the beams, the actual distribution of the applied loads within each span in general conforms with the provisions contained in the AASHTO Specification.

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  • Authors:
    • Grace, Nabil F
    • Nacey, Richard B
    • Roller, John J
    • Bonus, Wayne
    • Navarre, Frederick C
  • Publication Date: 2005-3

Language

  • English

Media Info

  • Media Type: Print
  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: pp 76-89
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01001095
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 21 2005 11:07AM