ELASTIC BUCKLING STRENGTH OF BURIED FLEXIBLE CULVERTS

Buckling of buried flexible culverts is defined as the loss of resistance to flexural deformations. Alternative theories are described. Then the procedures used by the most common current design codes are summarized and their limitations explained. The continuum theory is proposed as the best available approach to evaluate the buckling strength of buried flexible culverts because it most realistically models the soil properties and geometry. The suggested means of applying the continuum theory is presented. Example calculations show how the continuum theory results compare with those of existing codes. A major conclusion is that the substantial reduction in stability as structure size increases, as indicated by most approaches, is not correct according to the continuum theory. Commonly used theories are shown to be very conservative in most cases compared with the continuum theory. However, in some cases, for example shallow burial, the reverse may be true.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1988/1191/1191-007.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=ELASTIC+BUCKLING+STRENGTH+OF+BURIED+FLEXIBLE+CULVERTS&author=I.+Moore&author=E.+Selig&author=A.+Haggag&publication_year=1988
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309048028
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1191, Culverts and Tiebacks. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Moore, Ian D
  • Selig, Ernest T
  • Haggag, Atef
• Publication Date: 1988

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 57-64
• Monograph Title: Culverts and tiebacks
• Serial:
  • Transportation Research Record
  • Issue Number: 1191
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Buckling; Classical field theory; Corrugated metal culverts; Geometry; Properties of materials; Soil structure interaction; Soils; Theory
• Uncontrolled Terms: Soil properties; Structural stability
• Subject Areas: Bridges and other structures; Geotechnology; Highways; Materials; I20: Design and Planning of Transport Infrastructure;

Filing Info

• Accession Number: 00490127
• Record Type: Publication
• ISBN: 0309048028
• Files: TRIS, TRB, ATRI
• Created Date: Dec 31 1989 12:00AM