The usual method for determining the in-plane buckling strength of steel trusses consists of determining the buckling loads for the individual compression members with an assumed degree of fixity at ends of each member. This report shows that a steel truss can buckle not only through the buckling of one of its compression members, but also through the instability of a joint. It also shows that the end fixities of various members of a truss, which are a non-linear function of applied loads, cannot be determined in isolation, i.e., without considering the whole truss. A computer program based on the proposed iterative technique is presented to determine the load-carrying capacity of steel trusses as it is determined by the buckling of the truss in its own plane. The report contains listings of the program together with the data input instructions. Comparisons of the program results with model test results and with results from another published method are presented to verify the validity of the program. /Author/

  • Corporate Authors:

    Ontario Ministry of Transportation & Communic, Can

    1201 Wilson Avenue
    Downsview, Ontario M3M 1J8,   Canada 
  • Authors:
    • Csagoly, P
    • Bakht, B
  • Publication Date: 1978-8

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 41 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00183668
  • Record Type: Publication
  • Report/Paper Numbers: RR 218
  • Files: TRIS
  • Created Date: Dec 12 1978 12:00AM