THE BEHAVIOR AT HIGH TEMPERATURE OF STEEL STRAND FOR PRESTRESSED CONCRETE

THIS PAPER DESCRIBES THE BEHAVIOR OF COMMERCIALLY AVAILABLE 7-WIRE COLD-DRAWN, STRESS-RELIEVED, UNCOATED, STEEL PRESTRESSING STRAND TESTED IN THE BARE CONDITION (NOT WITHIN CONCRETE) AT TEMPERATURES WHICH MAY BE ENCOUNTERED DURING AN ACTUAL FIRE, OR DURING A FIRE TEST CONDUCTED IN ACCORDANCE WITH ASTM E 119. INFORMATION IS PRESENTED ON THE EFFECT OF RATE OF HEATING, PROLONGED HEATING AND THE INITIAL STRESS LEVEL ON THE TEMPERATURE AT RUPTURE. THE EFFECT OF HEATING TO DIFFERENT TEMPERATURES AND RATE OF COOLING FROM THESE TEMPERATURES ON THE ULTIMATE TENSILE STRENGTH IS EVALUATED. SOME DATA ON THE LOSS OF PRESTRESSING FORCE AND ON THE PERFORMANCE OF PRESTRESSED CONCRETE BEAMS WHICH WERE SUBJECTED TO THE STANDARD FIRE TEST IN THIS LABORATORY ARE PRESENTED. /PCA/

• Authors:
  • Abrams, M S
  • Cruz, C R
• Publication Date: 0

Media Info

• Serial:
  • Portland Cement Assoc R & D Lab Bull
  • Issue Number: 0

Subject/Index Terms

• TRT Terms: Beams; Fires; High temperature; Prestressed concrete; Prestressing; Steel; Tensile strength; Testing
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00213575
• Record Type: Publication
• Source Agency: Portland Cement Association
• Report/Paper Numbers: No 134
• Files: TRIS
• Created Date: Jun 1 1970 12:00AM