PRESTRESS TENDONS ON SHORT RADIUS CURVES

This report discusses the friction factor and ultimate tensile strength achieved by multi-strand tendons stressed around short radius curves. It was found that a pre-fabricated tendon of as many as 33 one-half-inch diameter strands, stressed through 1.7 radians of arc in a 10 foot radius, can develop its normal ultimate strength. The commonly used friction factors for rigid conduit, of k=0.0002 and u=0.25 were found to be valid for this configuration with some controls. The research project has been terminated because of a change in design philosophy, and because of the permanent cancellation of the construction project which would have completed the structure to be tested.

Media Info

  • Pagination: 32 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00143039
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: CA-DOT-DS-41551759 Final Rpt., FHWA-RD-76-S0505
  • Files: NTIS, TRIS, USDOT, STATEDOT
  • Created Date: Oct 6 2003 12:00AM