LATERAL-TORSIONAL BUCKLING OF NONPRISMATIC I-BEAMS

The authors of this technical paper develop a finite-element formulation for the lateral-torsional buckling analysis of nonprismatic I-beams. The formulation can be used to analyze continuous I-beams with a linear or quadratic taper within acceptable accuracy. The influence of warping deformations of the section and location of the member loads at different cross-section points are included in the formulation. Finite-element solution convergence is examined based on available experimental and numerical results. A parametric study on the lateral-torsional buckling strength is performed for different forms and degrees of taper, loading, and support conditions for single-span and two-span continuous beams. The buckling strength of beams with various degrees of taper and number of spans are also studied.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339445
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Gupta, P
  • Wang, S T
  • Blandford, G E
• Publication Date: 1996-7

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 748-755
• Serial:
  • Journal of Structural Engineering
  • Volume: 122
  • Issue Number: 7
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9445
  • Serial URL: http://ascelibrary.org/loi/jsendh

Subject/Index Terms

• TRT Terms: Buckling; Finite element method; Formulations; I beams; Loads; Parametric analysis; Structural supports; Tapered traffic lanes; Torsion
• Uncontrolled Terms: Lateral loads; Loading
• Old TRIS Terms: Supports; Taper
• Subject Areas: Bridges and other structures; Data and Information Technology; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00728769
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 29 1996 12:00AM