ELASTIC BEHAVIOR OF TAPERED MONOSYMMETRIC I-BEAMS

The simultaneous differential equations for bending out of the plane of symmetry and for torsion of tapered monosymmetric I-beams are derived by considering the flange displacements. It is found that these equations are not independent because the shear center and the longitudinal centroidal axes are not parallel and it is concluded that torsion is always accompanied by bending out of the plane of symmetry. The bending and torsion equations simplify considerably for the particular case of tapered monosymmetric I-beams of constant depth. The elastic stability of tapered monosymmetric simply supported I-beams of constant depth with central concentrated loads acting in the plane of the webs is also investigated both theoretically and experimentally. The governing differential equations for bending and torsion are solved numerically by the method of finite integrals.

• 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: 1975-8

Media Info

• Features: Appendices; Figures; References;
• Pagination: 17 p.
• Serial:
  • Journal of the Structural Division
  • Volume: 101
  • Issue Number: ST8
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Bending; Differential equations; I beams; Mechanical elasticity; Numerical analysis; Tapered traffic lanes; Torsion
• Old TRIS Terms: Monsymmetry; Taper
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00125432
• Record Type: Publication
• Report/Paper Numbers: ASCE #11479 Proceeding
• Files: TRIS
• Created Date: Nov 5 1975 12:00AM