A mixed solution of conventional design with pre-tensioned tendons was suggested by F. V. Emperger in 1939. The author proposed partial prestressing, covering many possibilities in 1941. The preferred solution is a design in which the section is in compression under frequently occurring load (which may also be dead load). Another solution relates to avoiding visible cracks under working load. (Limited prestress, Class 2 CEB). The latter was successfully introduced by British Railways in 1948 and in Germany in 1951/53. Very satisfactory fatigue tests were carried out in Liege in 1951. Previously full prestressing, at which only compressive stresses occur, was considered the only satisfactory solution; but according to Leonhardt this is a waste of energy. T.Y. Lin has the greatest practical experience with partial prestressing with his method of load counterbalancing. /Author/

  • Supplemental Notes:
    • Concrete Design: U.S. and European Practices. Proceedings of the symposium cosponsored by the American Concrete Institute, the Comite Euro-International du Beton, the Prestressed Concrete Institute, and the Federation Internationale de la Precontrainte, ACI Annual Convention, Philadelphia, 1976.
  • Corporate Authors:

    American Concrete Institute

    P.O. Box 19150, Redford Station, 22400 Seven Mile Road
    Detroit, MI  United States  48219
  • Authors:
    • Abeles, P W
  • Publication Date: 1979

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Filing Info

  • Accession Number: 00196181
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 15 1979 12:00AM