UNDERSTANDING THE LOSSES IN PRESTRESSING

LOSSES THAT OCCUR IN PRESTRESSED CONCRETE AND ATTEMPTS TO PLACE THEM IN PROPER PERSPECTIVE TO EACH OTHER ARE DISCUSSED. LOSS OF PRESTRESS DUE TO RELAXATION OF STEEL, SHRINKAGE, ELASTIC DEFORMATION AND CREEP IN THE CONCRETE, ANCHORAGE SLIP AND TENDON FRICTION ARE DISCUSSED; METHODS OF EVALUATING THESE LOSSES ARE PRESENTED. TEMPORARY OVERSTRESSING AND HIGHER INITIAL STRESS VALUES ARE REVIEWED AS MEANS OF REDUCING LOSSES AND EFFECTING HIGHER NET REMAINING STRESSES. /PCIJ/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08879672
• Supplemental Notes:
  • Vol 14, No 5, PP 43-53, 4 FIG, 4 TAB, 13 REF
• Authors:
  • Podolny, W
• Publication Date: 1969-10

Media Info

• Serial:
  • PRECAST/PRESTRESSED CONCRETE INSTITUTE. JOURNAL
  • Publisher: Precast/Prestressed Concrete Institute
  • ISSN: 0887-9672

Subject/Index Terms

• TRT Terms: Anchorages; Concrete; Creep; Elastic deformation; Friction; Losses; Mechanical relaxation; Prestressed concrete; Prestressing; Shrinkage; Slip (Fluid mechanics); Tendons
• Uncontrolled Terms: Slips
• Old TRIS Terms: Concrete creep
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00209184
• Record Type: Publication
• Files: TRIS
• Created Date: May 19 1970 12:00AM