PRETENSIONED GIRDER DESIGN

THIS COMPUTER PROGRAM DESIGNS PRETENSIONED, PRESTRESSED GIRDERS, TYPE I THROUGH IV, FOR EITHER DRAPED OR STRAIGHT STRANDS USING INPUT PARAMETERS SUCH AS BEAM TYPE, WIRE SIZE, SPAN LENGTH, AND GIRDER SPACING AS DESCRIBED BY THE ENGINEER. IT COMPUTES THE REQUIRED NUMBER OF STRANDS AND PROCEEDS TO DESIGN THE GIRDER FOR STANDARD AASHO HIGHWAY LOADINGS PLUS SPACIAL LOADING. IT DRAPED STRANDS ARE REQUIRED TO KEEP STRESSES WITHIN ALLOWABLE LIMITS, THE PROGRAM WILL DRAPE THE STRANDS AT THE 1/3 POINTS OF THE BEAM. THE PROCESS IS AN ITERATIVE ONE, AND STRANDS ARE ADDED UNTIL A SATISFACTORY GIRDER IS DESIGNED, OR UNTIL THE LARGEST WIRE SIZE (9/16 INCH-270 KSI) HAS BEEN EXHAUSTED. PROVISION HAS BEEN MADE FOR A UNIFORM LOAD, SUCH AS A CURB LOAD. THE PROGRAM CHECKS THE BEAM UNDER ULTIMATE LOAD, COMPUTES HORIZONTAL SHEAR AND REQUIRED STIRRUP SPACING, PRINTS OUT DEFLECTIONS UNDER INITIAL AND FINAL CONDITIONS. /FHWA/

  • Corporate Authors:

    Federal Highway Administration

    Office of Implementation, 1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Fryer, R
  • Publication Date: 1971-5

Media Info

  • Pagination: 100 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00208060
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: FHWA-RD-72- 17 Final Rpt.
  • Files: TRIS, USDOT
  • Created Date: Apr 17 1976 12:00AM