Design curves and formulae are presented for the calculation of deflections in reinforced concrete flexural members. These are based on the procedure given in Appendix A of cp 110 for direct calculation of curvatures and deflections due to short-term and long-term effects. Using the design curves as the basis, an estimate of the errors introduced by the simplifying assumptions presently used in deflection calculation is obtained, and the area of validity of these assumptions is defined. The need for a more realistic assessment of deflections and the use of the design curves are illustrated by an optimum design example. The advantage of the design formulae and the associated curves in deflection calculations is illustrated by considering a doubly reinforced member. /Author/TRRL/

  • Availability:
  • Corporate Authors:

    Institution of Structural Engineers

    11 Upper Belgrave Street
    London,   United Kingdom  SW1X 8BH
  • Authors:
    • Gunaratnam, D J
  • Publication Date: 1979-3

Media Info

  • Features: Figures; References;
  • Pagination: p. 79-84
  • Serial:
    • Structural Engineer
    • Volume: C57A
    • Issue Number: 3
    • Publisher: Institution of Structural Engineers
    • ISSN: 1466-5123

Subject/Index Terms

Filing Info

  • Accession Number: 00195425
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Aug 15 1979 12:00AM