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.
Sacramento, CA United States 95814
Washington, DC United States 20590
- Bezouska, T J
- Publication Date: 1975-10
- Pagination: 32 p.
- TRT Terms: Beams; Bridges; Concrete structures; Friction factor; Prestressed concrete; Prestressing; Radius; Reinforcing materials; Tendons; Tensile strength
- Old TRIS Terms: Cantilever beams; Circular prestressing
- Subject Areas: Bridges and other structures; Highways;
- 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