CAMBER AND DEFLECTION BEHAVIOR OF PRESTRESSED CONCRETE BEAMS, PHASE II

THE RESULTS FROM EXPERIMENTAL STUDIES ON THE CAMBER AND DEFLECTION OF SIMPLY SUPPORTED RECTANGULAR PRESTRESSED CONCRETE BEAMS ARE REPORTED. THE BEAMS WERE INITIALLY LOADED FOR A PERIOD OF 450 DAYS. SUBSEQUENTLY, THE LOADS WERE REMOVED, THE BEAMS WERE LEFT WITHOUT LOADS FOR 90 DAYS, AND THEN RELOADED TO THE ORIGINAL STRESS, FOR 90 DAYS. THIS SEQUENCE WAS REPEATED FOR ANOTHER CYCLE. THE MODULUS OF ELASTICITY WAS DETERMINED AT DIFFERENT TIMES. VALUES FOR ULTIMATE SHRINKAGE STRAIN AS WELL AS ULTIMATE CREEP COEFFICIENTS ARE SUGGESTED. MATHEMATICAL MODELS FOR CREEP, CAMBER AND DEFLECTION ARE DISCUSSED. THE EFFECT OF LOADING AGE IS OBSERVED AND A STATISTICAL EVALUATION OF DEFLECTION DATA IS PERFORMED.

• Corporate Authors:

  University of Hawaii, Manoa

  Hawaii Cooperative Fishery Research Unit
  Honolulu, HI  United States  96822
• Authors:
  • Zundelevich, S
  • Hamada, C T
  • Chiu, A N
• Publication Date: 1973-6

Subject/Index Terms

• TRT Terms: Beams; Bridges; Concrete tests; Creep; Deflection; Failure; Flexural strength; Loads; Mathematical models; Modulus of elasticity; Prestressed concrete; Prestressing; Shrinkage; Statistical analysis; Strain (Mechanics); Structural tests
• Uncontrolled Terms: Loading; Strain rate
• Subject Areas: Bridges and other structures; Data and Information Technology; Highways; Materials;

Filing Info

• Accession Number: 00208099
• Record Type: Publication
• Source Agency: Hawaii Department of Transportation
• Report/Paper Numbers: Final Rpt
• Files: TRIS, STATEDOT
• Created Date: May 15 1974 12:00AM