STATE OF THE ART REPORT ON PRESTRESS LOSSES IN POST-TENSIONED MEMBERS
This report presents a survey of the literature concerning the prestress loss characteristics of post-tensioned concrete structural members. Findings by previous researchers related to time-dependent loss components (such as creep and shrinkage of concrete and relaxation in steel), the effect of temperature, and additional losses due to post-tensioning (namely friction and anchorage take-up) are presented and discussed. Specification and code provisions currently in use are reviewed, and the inadequate nature of such provisions is cited. The need for further research is indicated in the area of prestress losses in post-tensioned concrete structural members.
- Prepared in cooperation with Pennsylvania Dept. of Transportation, Harrisburg.
Lehigh UniversityFritz Engineering Laboratory
Bethlehem, PA United States 18015
Harrisburg, PA United States 17120
Washington, DC United States 20590
- Rimbos, P
- Huang, T
- Publication Date: 1975-7
- Pagination: 66 p.
- TRT Terms: Bridges; Concrete construction; Concrete structures; Creep properties; Deflection; Friction factor; Posttensioning; Prestressed concrete; Prestressing; Reinforcing steel; Relaxation (Mechanics); Structural members; Temperature
- Uncontrolled Terms: Prestress loss
- Subject Areas: Bridges and other structures; Highways;
- Accession Number: 00143043
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: FEL-402.1 Intrm Rpt., FHWA/PA-74-3-1
- Files: NTIS, TRIS, USDOT, STATEDOT
- Created Date: Oct 6 1976 12:00AM