ELIMINATION OF DRAPED STRANDS IN PRESTRESSED CONCRETE GIRDERS

The object of the tests reported was to study and ascertain the effects of the elimination of draped strands in prestressed concrete girders. Specifically, the elimination of draped strands is accomplished through the use of straight strands having certain unbonded lengths thus creating so-called phantom draped strands. The unbonded lengths were obtained through the use of plastic tubing, often referred to as blanketing. The effect of these phantom draped strands on the flexural strength and behavior of prestressed concrete bridge girders was the essence of this investigation. Specimens tested included half-scale Type III AASHO girders and full-size Type II AASHO girders. The specimens were all loaded statically in flexure. Direct considerations of shear and fatigue were not a part of this investigation.

• Supplemental Notes:
  • Prepared in cooperation with Louisiana Dept. of Highways, Baton Rouge.
• Corporate Authors:

  Tulane University

  Department of Civil Engineering, 206 Civil Engineering Building
  New Orleans, LA  United States  70118

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Louisiana Department of Highways

  P.O. Box 44245, Capitol Station
  Baton Rouge, LA  United States  70804
• Authors:
  • Dane III, J
  • Bruce, RNJ
• Publication Date: 1975-1

Media Info

• Pagination: 164 p.

Subject/Index Terms

• TRT Terms: Cracking; Flexural strength; Girder bridges; Girders; Loads; Plastics; Prestressed concrete; Prestressing; Reinforcing materials; Shear strength; Static loads; Tubing
• Uncontrolled Terms: Prestressing strands
• Old TRIS Terms: Blanketing; Plastic tubing; Static loading; Stranding; Strands
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00093631
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FHWA-RD-75-S0399 Final Rpt., TR-107
• Contract Numbers: 1(12), 736-01-65
• Files: NTIS, TRIS, USDOT, STATEDOT
• Created Date: Feb 4 1976 12:00AM