FATIGUE TESTS OF HYBRID PLATE GIRDERS UNDER COMBINED MOMENT AND SHEAR

FOUR HYBRID PLATE GIRDERS WERE TESTED IN COMBINED BENDING AND SHEAR. THE FLANGES OF THE GIRDERS WERE OF ASTM A514 STEEL AND THE WEBS WERE OF ASTM A36 STEEL. THE TEST PANEL ASPECT RATIO ALPHA OF TWO GIRDERS WAS 0.5 WHILE THE SAME FOR THE OTHER TWO SPECIMENS WAS 1.5. FOR TWO OF THE SPECIMENS, ALPHA = 0.5 AND 1.5, THE APPLIED STRESSES FLUCTUATED FROM 25 TO 40 KSI, A STRESS RANGE OF 15 KSI. THE REMAINING TWO GIRDERS WERE SUBJECTED TO A STRESS RANGE OF 25 KSI WITH A MINIMUM FLANGE STRESS OF 25 KSI. THE TEST RESULTS INDICATED THAT HYBRID PLATE GIRDERS, UNDER COMBINED BENDING AND SHEAR, HAVE A SHORTER FATIGUE LIFE FOR A STRESS RANGE OF 25 KSI THAN THOSE SUBJECTED TO PURE BENDING. /AUTHOR/

• Supplemental Notes:
  • Res Rept 96-4, 25 PP, 9 FIG, 3 TAB, 11 REF
• Corporate Authors:

  University of Texas, Austin

  Center for Highway Research, 200 West 21st Street
  Austin, TX  United States  78712
• Authors:
  • Natarajan, M
  • Toprac, A A
• Publication Date: 1969-5

Subject/Index Terms

• TRT Terms: Bending; Bending stress; Fatigue (Mechanics); Fatigue tests; Girders; Plate girders; Ratios; Shear stress; Stresses
• Uncontrolled Terms: Aspect ratio; Fatigue life; Hybrids
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00209380
• Record Type: Publication
• Files: TRIS
• Created Date: May 3 1971 12:00AM