NONNUNIFORM TORSION OF STEEL BEAMS IN INELASTIC RANGE

TESTS ON FIVE 6 INC. X 6 IN. ROLLED WIDE-FLANGE STEEL BEAMS OF 76 IN. LENGTH WERE PERFORMED BY SUBJECTING THEM TO CONCENTRATED TORQUES IN THE SPAN. THE TESTS WERE CARRIED TO VERY LARGE ANGLES OF TWIST AND IN ONLY ONE OF THEM WAS FAILURE ACHIEVED BY TENSILE RUPTURE. A THEORETICAL ANALYSIS, BASED ON THE ELASTIC PLASTIC THEORY, SHOWED GOOD CORRELATION WITH THE EXPERIMENTAL RESULTS IN THE PREDICTION OF THE TORQUE AT WHICH GENERAL SOFTENING OF THE SYSTEM SET IN. THE LARGE POST MECHANISM STRENGTH IS SHOWN TO BE ATTRIBUTABLE TO STRAIN-HARDENING AND MEMBRANE EFFECTS. /ASCE/

• Supplemental Notes:
  • Vol 958 No ST 128 PROC PAPERS 69648 PP 2813-2829, 20 FIG, 2
• Authors:
  • Farwell, C R
  • Galambos, T V
• Publication Date: 1969-12

Media Info

• Serial:
  • Journal of the Structural Division
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Beams; Concrete tests; Elasticity (Mechanics); Flexural strength; Steel; Strain hardening; Structural engineering; Structural tests; Theory; Torque; Torsion
• Old TRIS Terms: Elastic theory
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00209139
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 24 1970 12:00AM