UNSYMMETRICAL PLATE GIRDERS UNDER SHEAR AND MOMENT

A METHOD OF DETERMINING THE ULTIMATE STATIC STRENGTH OF TRANSVERSELY STIFFENED PLATE GIRDERS SUBJECTED TO A COMBINATION OF SHEAR AND BENDING IS PRESENTED. THE METHOD IS APPLICABLE TO HOMOGENEOUS AND HYBRID GIRDERS WITH SYMMETRICAL OR UNSYMMETRICAL CROSS SECTION. THE ULTIMATE STRENGTH IS ASSUMED TO BE GIVEN BY THE SUM OF THREE CONTRIBUTIONS: BEAM ACTION, TENSION FIELD ACTION AND FRAME ACTION. IN THE WEB PLATE BUCKLING COMPUTATION, THE WEB IS ASSUMED TO BE FIXED AT THE FLANGES AND SIMPLY SUPPORTED AT THE STIFFENERS. THE BEHAVIOR OF A GIRDER PANEL IS DESCRIBED BY A CONTINUOUS INTERACTION CURVE WHICH IS DIVIDED INTO THREE PARTS: WEB FAILURE PORTION, COMPRESSION FLANGE BUCKLING PORTION AND TENSION FLANGE YIELD PORTION. THE THEORETICAL ULTIMATE LOADS COMPARE WELL WITH THE RESULTS OF THE AVAILABLE FIFTY-THREE TESTS ON SYMMETRICAL AND UNSYMMETRICAL PLATE GIRDERS. THE AVERAGE DEVIATION IS 5% WITH THE EXTREME DEVIATION OF 15%. /AUTHOR/

• Corporate Authors:

  Lehigh University

  Bethlehem, PA  United States  18015

  American Iron and Steel Institute

  1101 17th Street, NW, Suite 1300
  Washington, DC  United States  20036-4700

  Welding Research Council Engr Fdn

  ,    

  Pennsylvania Department of Transportation

  1215 Transportation and Safety Building
  Harrisburg, PA  United States  17120

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Chern, C
  • Ostapenko, A
• Publication Date: 0

Subject/Index Terms

• TRT Terms: Bending; Breaking loads; Cross sections; Flanges; Plate girders; Shear strength; Stiffeners (Plates); Tension; Ultimate strength; Webbing
• Old TRIS Terms: Stiffeners
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00215958
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Report/Paper Numbers: 66-3
• Files: TRIS, USDOT, STATEDOT
• Created Date: Aug 8 1971 12:00AM