IMPLEMENTATION PACKAGE FOR CAMBER AND DEFLECTION BEHAVIOR OF PRESTRESSED CONCRETE BEAMS

TO EVALUATE DESIGN PARAMETERS FOR LOCAL CONDITIONS TO BE USED IN THE PREDICTION OF TIME-DEPENDENT DEFORMATIONS, PRACTICAL DESIGN PROCEDURES FOR COMPUTING THE DEFLECTION OF PRESTRESSED CONCRETE MEMBERS ARE PRESENTED. SHORT-TIME AND LONG-TIME DEFLECTIONS OF NON-COMPOSITE AND COMPOSITE PRESTRESSED CONCRETE BEAMS ARE INCLUDED. EVALUATION PARAMETERS SUCH AS CONCRETE STRNGTH, MODULUS OF ELASTICITY, SHRINKAGE AT ANY TIME, AND CREEP ARE SUMMARIZED AS ARE THE STANDARD CONDITIONS. CAMBER AND DEFLECTION ARE DISCUSSED AND A MATHEMATICAL MODEL OF DEFLECTIONS IS PRESENTED. THE INFLUENCE OF NON-PRESTRESSED REINFORCEMENT AND COMPOSITE PRESTRESSED CONCRETE BEAMS ARE DETAILED. THE LOSS OF PRESTRESS IS DISCUSSED. SIMPLY SUPPORTED PRESTRESSED CONCRETE BEAMS WERE USED TO INVESTIGATE THE CAMBER, DEFLECTION, CAMBER RECOVERY, AND DEFLECTION RECOVERY BEHAVIOR IN ORDER TO ASSESS THE TIME DEPENDENT CHARACTERISTICS. SHRINKAGE AND CREEP TEST RESULTS ARE PRESENTED. TYPICAL CAMBER AND DEFLECTION HISTORY ARE GRAPHICALLY REPRESENTED AND MATHEMATICAL EXPRESSIONS WHICH MODEL DEFLECTION BEHAVIOR ARE PROPOSED. THE DERIVATION OF SHRINKAGE WARPAGE FOR REINFORCED CONCRETE MEMBER WITH ECCENTRIC TENSIONING REINFORCEMENT IS PRESENTED IN AN APPENDIX WHICH ALSO INCLUDES A DISCUSSION OF LOSS OF PRESTRESS ACCORDING TO AASHO.

  • Corporate Authors:

    Hawaii Department of Transportation

    869 Punchbowl Street
    Honolulu, HI  USA  96813-5097
  • Publication Date: 1972-8

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 32 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00209897
  • Record Type: Publication
  • Files: TRIS, STATEDOT
  • Created Date: Sep 28 1973 12:00AM