LATERAL TORSIONAL BUCKLING TESTS ON REDUCED SCALE WELDED STEEL BRIDGE GIRDERS. REPORT 1: RESULTS AND EVALUATION OF TESTS

Lateral torsional buckling is a major influence on the design of I-Section beams and girders. Investigations of available beam buckling data suggests that welded beams will possess lower lateral buckling strengths than comparable rolled section beams. Twelve tests have been carried out on laterally unbraced welded steel beams typical of those used in UK bridge work. Preliminary evaluation of the test results was carried out using the procedures of the draft part 3 BS 5400. Strict use of the basic procedures is shown to underestimate the experimental strengths for all but the most stocky beams, whilst use of the most "accurate" procedures leads to significant over-estiminates in most cases. (TRRL)

• Corporate Authors:

  Sheffield University, England

  Department of Civil and Structural Engineering
  Sheffield,   England 
• Authors:
  • Oheachteirn, P
  • Nethercot, D A
• Publication Date: 1982-9

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: 42 p.

Subject/Index Terms

• TRT Terms: Accuracy; Beams; Bridges; Buckling; Girder bridges; I beams; Loads; Metal bridges; Steel; Steel bridges; Strength of materials; Stresses; Test procedures; Tests; Torsion tests; Welding
• Uncontrolled Terms: Lateral; Lateral loads
• ITRD Terms: 3472: Beam; 3455: Bridge; 5522: Buckling; 5567: Load; 9074: Side; 4542: Steel; 5544: Strength (mater); 5575: Stress (in material); 6255: Test; 3852: Welding
• Subject Areas: Bridges and other structures; Design; Geotechnology; Highways; Materials; I24: Design of Bridges and Retaining Walls; I34: Steels and Metals;

Filing Info

• Accession Number: 00372560
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Report/Paper Numbers: Monograph
• Files: ITRD, TRIS
• Created Date: May 31 1983 12:00AM