ON THE DESIGN OF PRESTRESSED FLAT PLATES

A set of simple techniques for the analysis and design of prestressed flat plate structures is presented. These are based on continuing research and observations of performance. One basis of design proposed is the direct design technique of selecting the structural parameters to meet a specified performance state. The criterion of uniform strain or zero bending at sustained loads is used and is met by placing tendons according to a simple moment model. An equation for deflection control under partial or approximate balancing is introduced. A criterion for moment-shear interaction to increase shear capacity above moment capacity is discussed and design equations are derived. The criterion of uniform strain is extended to variable thickness plates, and techniques for analysis and design of irregular plates are also described. Using these various techniques, the performance of prestressed slabs may be simply and more accurately determined and controlled, increasing their spectrum of economic spans and shapes and hence their application range. /Author/TRRL/

  • Corporate Authors:

    Commonwealth Scientific & Industrial Research Org

    314 Albert Street
    East Melbourne, Victoria,   Australia 
  • Authors:
    • Brotchie, J F
  • Publication Date: 1974

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 39 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00132646
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Monograph
  • Files: ITRD, TRIS
  • Created Date: Nov 9 1977 12:00AM