LOCAL BUCKLING OF WELDED STEEL OUTSTANDS

The dissertation contains details of a theoretical analysis for predicting the load-deflection characteristics of slender simply-supported plain flat outstands (beam or column flanges, plain flat stiffeners in stiffened plating) in compression, including the effect of welding residual stresses and initial imperfections. A study of hinged plain flat outstands in compression is also described, and the results enable a design curve of strength against slenderness to be drawn. The agreement between experimental and predicted strengths is quite good. For bulb flats, high rolling residual stresses and a considerable variation in the yield stress across the section have been found. Compression tests have been conducted on bulb-flat cruciform columns to investigate the effect of different imperfection shapes on strength. The results indicate that a relaxation in the merrison fabrication tolerance could be made. Finally, a design method is presented for outstand failure in stiffened steel compression panels. /TRRL/

• Corporate Authors:

  Cambridge University, England

  Trumpington Street
  Cambridge CB2 1PZ,   England 
• Authors:
  • Rogers, N A
• Publication Date: 1975-2

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: 290 p.

Subject/Index Terms

• TRT Terms: Beams; Bridges; Buckling; Compression; Compression tests; Deflection; Design; Design methods; Forecasting; Hinges; Loads; Mathematical analysis; Steel; Stiffener plates; Strength of materials; Stresses; Theses; Thickness; Welding; Welds; Yield stress
• Uncontrolled Terms: Loading
• Old TRIS Terms: Compressive strength tests; Stiffeners; Welded steel beams
• ITRD Terms: 6471: Analysis (math); 3472: Beam; 5532: Compression; 5586: Deflection; 9011: Design (overall design); 132: Forecast; 3462: Hinge; 5567: Load; 4542: Steel; 3435: Stiffener (bridge); 5544: Strength (mater); 5575: Stress (in material); 8597: Thesis; 5933: Thickness; 3852: Welding
• Subject Areas: Bridges and other structures; Design; Geotechnology; Highways; Materials; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00133837
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Thesis
• Files: ITRD, TRIS
• Created Date: Nov 9 1977 12:00AM