TIME-DEPENDENT BEHAVIOR OF CONCRETE BOX GIRDER BRIDGES

Time-dependent deflections and strain histories under sustained dead load, after successively increasing overload conditions, are presented for two 1:2.82 scale reinforced concrete models of a typical two-lane prototype bridge in California having two 101.5 ft (30.9 m) spans with a single column bent at the center. The two models had the same four cell cross section but one was straight in plan, while the other was curved. The experimental data for the two bridge models are presented and compared with each other as well as with theoretical predictions. Time-dependent responses of the two bridges were quite similar. Maximum dead load deflection after 4 months and the application and removal of heavy overloads was about 4 times the initial deflection. /Author/

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  • Corporate Authors:

    American Concrete Institute

    P.O. Box 19150, Redford Station, 22400 Seven Mile Road
    Detroit, MI  United States  48219
  • Authors:
    • Scordelis, A C
    • Elfgren, L G
    • Larsen, P K
  • Publication Date: 1979-1

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Filing Info

  • Accession Number: 00193579
  • Record Type: Publication
  • Report/Paper Numbers: Symp Paper
  • Files: TRIS
  • Created Date: May 26 1979 12:00AM