THE DEFLEXION OF REINFORCED CONCRETE BEAMS UNDER FLUCTUATING LOAD WITH A SUSTAINED COMPONENT

An experimental investigation on reinforced beams undertaken to determine the influence of fluctuation of loading on deflexions is described. The beams were subjected to a range of loading regimes usually with a fluctuating component. A linear logarithmic relationship was found between the increase in maximum deflexion and the number of fluctuations or the length of time under load. Increases in deflexion of beams under fluctuating loads were about the same as for beams subjected to sustained load equal in magnitude to the maximum of the fluctuation. The results are related to present design criteria and methods of analysis for deflexions of reinforced concrete structures and the implications for design are discussed. (A) (TRRL)

  • Availability:
  • Corporate Authors:

    Institution of Structural Engineers

    11 Upper Belgrave Street
    London,   United Kingdom  SW1X 8BH
  • Authors:
    • Sparks, P R
    • MENZIES, J B
  • Publication Date: 1973-11

Language

  • English

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: p. 413-420
  • Serial:
    • Structural Engineer
    • Volume: 51
    • Issue Number: 11
    • Publisher: Institution of Structural Engineers
    • ISSN: 1466-5123

Subject/Index Terms

Filing Info

  • Accession Number: 00322422
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: May 21 1981 12:00AM