THE STATISTICAL VARIATION OF THE BUCKLING STRENGTHS OF COLUMNS

Many tests have been undertaken to determine the variation of column maximum strength for different conditions of buckling, namely elastic, elastic-plastic and plastic. Model mild steel columns of rectangular cross-section were used, groups of tests being performed at various slenderness ratios from 40 to 220. The variation of maximum strength was found to be dependent on slenderness ratio, with the greatest scatter of maximum strength occurring in the region of the slenderness ratio where there is a transition from elastic to plastic buckling. It is shown that these results can be predicted if the imperfection parameter of the column is known. A similar scatter of maximum strengths has been found by the European convention of the Association of Metal Construction, working with full-size mild steel members. A method of obtaining design curves is proposed, based on the probability of failure. (A). /TRRL/

Media Info

  • Features: Figures; References;
  • Pagination: p. 109-125
  • Serial:
    • Volume: 61

Subject/Index Terms

Filing Info

  • Accession Number: 00137501
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Oct 6 1976 12:00AM