RIGID-PLASTIC THEORY V TRUS ANALOGY METHOD FOR CALCULATING THE SHEAR STRENGTH OF REINFORCED CONCRETE BEAMS

A comparison is made between the web crushing strengths of reinforced concrete beams predicted by a model based on the theory of plasticity and by a variable-angle truss model. The theory of plasticity model assumes rigid-plastic behaviour of the constituent materials, whereas the variable-angle truss model incorporates their actual stress-strain characteristics. It is shown that neglect of the deformations in the web steel prior to yielding and in the concrete prior to crushing leads to a high prediction for both the amount of web reinforcement required for a balanced section and the ultimate capacity of a section which is over-reinforced for shear. However, both approaches yield the same capacity for a section which is under-reinforced for shear.(a) (TRRL)

  • Availability:
  • Corporate Authors:

    Cement and Concrete Association

    Wexham Spring
    Slough SL3 6PL, Buckinghamshire,   England 
  • Authors:
    • Campbell, T I
    • Chitnuyanondh, L
    • Batchelor, B H
  • Publication Date: 1980-3

Media Info

  • Features: Figures; References;
  • Pagination: p. 39-44
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00319543
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Feb 6 1981 12:00AM