BUCKLING OF ELASTICALLY SUPPORTED CONTINUOUS COLUMNS, INCLUDING HAND DESIGN OF GRIDS OF COLUMNS AND SUPPORTING BEAMS

Exact methods are given for finding the lowest elastic critical load of a continuous column with elastic supports, and for finding stiffness to represent the out of plane support which the columns of a grid of beams and columns receive from the beams. The beams and columns of the grid need not be identical, uniform or evenly spaced. However, the flexural rigidity distribution for one beam must follow from that of any other beam by scaling, and the column flexural rigidities (and axial forces) must be similarly interrelated. The exact methods require a computer. Therefore design curves and approximate methods are also given. Hence hand calculations can be used to obtain out of plane grid buckling loads or to design grids with required buckling loads. The column methods apply regardless of the source of the elastic supports, and the beam methods apply when the supported columns are replaced by suitably interrelated structures. (Author/TRRL)

Media Info

  • Features: Figures; References;
  • Pagination: p. 223-244
  • Serial:
    • Volume: 69

Subject/Index Terms

Filing Info

  • Accession Number: 00325421
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Report/Paper Numbers: Part 2
  • Files: ITRD, TRIS
  • Created Date: Apr 15 1981 12:00AM