STABILITY OF CONDUIT WALLS OF SOIL-STEEL BRIDGES

The problem of stability of the conduit walls of soil-steel structures has been examined by many investigators using either the continuum theory or the Winkler approach in which the soil media is replaced by spring supports. Because of the form of application and assumptions, the continuum analysis overestimates the buckling load while the Winkler analysis underestimates the buckling load. The present paper examines the causes of the discrepancy between the published results obtained from the contiuum and the Winkler analysis and arrives at a rationally realistic buckling formula. Furthermore, the effect of spacing between multispan conduits is examined and is taken into consideration in the modified buckling equations, which are adopted by the forthcoming Ontario Highway Bridge Design Code.

  • Availability:
  • Corporate Authors:

    National Research Council of Canada

    Research Journals
    Ottawa, Ontario K1A 0R6,   Canada 
  • Authors:
    • Abdel-Sayed, G
    • Girges, Y
  • Publication Date: 1992-6

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00624118
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Sep 3 1993 12:00AM