THIN ALUMINUM SHEAR WEBS

THE BEHAVIOR OF ALUMINUM THIN-WEB GIRDERS IN SHEAR, WHEN LOADED IN EXCESS OF THE BUCKLING VALUE, IS STUDIED. THE EQUATIONS AND SIMPLIFIED DESIGN CHARTS PRESENTED TAKE INTO ACCOUNT THE EFFECT OF FLEXURAL RIGIDITY OF THE FLANGES ON THE STRENGTH OF THE WEB, STIFFENERS, AND FASTENERS. DEVELOPING THE ULTIMATE STRENGTH EQUATION, IT IS ASSUMED THAT THE STRESS DISTRIBUTION IN THE WEB IS THE SUM OF A COMPONENT OF PURE SHEAR EQUAL TO THE SHEAR BUCKLING VALUE PLUS TWO COMPONENTS OF TENSION STRESSES, ONE ORIENTED AT AN ANGLE OF 45 DEG, THE OTHER ORIENTED AT AN ANGLE CALCULATED AS THOUGH THE FLANGES WERE COMPLETELY FLEXIBLE. THE RELATIVE MAGNITUDE OF THE TWO TENSION COMPONENTS DEPENDS ON FLANGE FLEXIBILITY. ULTIMATE FAILURE IS ASSUMED TO OCCUR WHEN THE COMBINED STRESS STATE CAUSES YIELDING OF THE WEB. THE EFFECT OF WEB BUCKLES ON THE APPEARANCE OF THE GIRDER IS ALSO CONSIDERED. THE CALCULATED RESULTS ARE COMPARED WITH EXPERIMENTAL DATA FOR THIN-WEB ALUMINUM GIRDERS. /ASCE/

• Supplemental Notes:
  • Vol 97, No ST 4, PROC PAPER 8048, PP 1021-1038, 10 FIG,
• Authors:
  • Sharp, M L
  • Clark, J W
• Publication Date: 1971-4

Media Info

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

Subject/Index Terms

• TRT Terms: Aluminum; Buckling; Flanges; Flexure; Girders; Shear strength; Stiffness; Stresses; Tension; Ultimate strength; Webbing
• Old TRIS Terms: Yield
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00209406
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 22 1971 12:00AM