Approximations are derived for the section properties required for the calculation of the elastic critical loads of monosymmetric I-beams and are found to be related to the ratio of compression flange and section minor axis second moments of area. Approximations are obtained that are applicable to I-sections with unequal and lipped flanges and that are in close agreement with accurate calculations of the monosymmetry section properties made for a wide range of cross sections. An improved design rule is proposed for the elastic critical stress of a monosymmetric I-beam. A comparison is made of the results obtained using the proposed rule and the present rules of the AS 1250, BS 449, and AISC Specification. (ASCE)

  • Corporate Authors:

    American Society of Civil Engineers

    345 East 47th Street
    New York, NY  United States  10017-2398
  • Authors:
    • Kitipornchai, S
    • Trahair, N S
  • Publication Date: 1980-4

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: p. 941-957
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00314601
  • Record Type: Publication
  • Report/Paper Numbers: ASCE 15406 Proceeding
  • Files: TRIS
  • Created Date: Oct 27 1980 12:00AM