A numerical method of analysis is developed for the study of the collapse behaviour of indeterminate concrete structures with limited ductility. The method is applied to indeterminate concrete beams in a numerical study of the minimum ductility requirements for structures designed by current code methods which allow redistribution of the elastic moments. Ductility limits are expressed in terms of a ductility factor F as well as the reinforcing index q and the factor ku, which defines the depth of the neutral axis in a section at ultimate moment. The fall- off in collapse load, which occurs when there is insufficient ductility to allow full plastic hinge action, is also studied. A simple expression for the loss in load capacity (as compared with the full plastic collapse load) is derived from the numerical results. (Author/TRRL)

  • Corporate Authors:

    University of Adelaide

    Department of Civil and Environmental Engineering
    Adelaide, South Australia  Australia  5005
  • Authors:
    • WARNER, R F
    • Yeo, M F
  • Publication Date: 1984-1

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 28 p.
  • Serial:
    • Issue Number: R61

Subject/Index Terms

Filing Info

  • Accession Number: 00387183
  • Record Type: Publication
  • Source Agency: ARRB
  • Report/Paper Numbers: Monograph
  • Files: ITRD, TRIS, ATRI
  • Created Date: Aug 30 1984 12:00AM