POST-BUCKLING BEHAVIOUR OF ELASTIC CIRCULAR ARCHES

Three circular, pin-based arches have been subjected to accurate, second-order elastic analyses in order to study their post-buckling behaviour. Two low-rise arches and one of full semi-circular shape have been studied using a discrete element technique previously developed for the numerical analysis of beam-columns. Under central point loading, the low-rise arches exhibited unstable post-buckling response whereas that of the semi-circular arch was stable. Each arch was also analysed for the case where the load was displaced slightly from the central position. The resulting load-deformation curves help understanding of the nature of equilibrium bifurcation in arches. In the process the discrete element method is confirmed as a powerful and practicable method for the analysis of arches of any shape and under any loading conditions. /Author/TRRL/

Media Info

  • Features: Figures; References;
  • Pagination: p. 283-298
  • Serial:
    • Volume: 65

Subject/Index Terms

Filing Info

  • Accession Number: 00184348
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Jan 13 1979 12:00AM