BUCKLING PROPERTIES OF MONOSYMMETRIC I-BEAMS

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:
  • Journal of the Structural Division
  • Volume: 106
  • Issue Number: ST5
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Buckling; Compression; Critical values; Flanges; I beams; Loads; Mechanical elasticity; Stresses; Symmetry
• Uncontrolled Terms: Critical loads
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

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