FATIGUE TESTS OF HYBRID PLATE GIRDERS UNDER COMBINED BENDING AND SHEAR

THREE HYBRID PLATE GIRDERS WERE TESTED IN COMBINED BENDING AND SHEAR. BOTH FATIGUE AND STATIC ULTIMATE TESTS WERE PERFORMED. THE FLANGES WERE OF A514 STEEL AND THE WEBS WERE OF A36 STEEL. THE STRESS RANGE IN THE FLANGES WAS 25 KSI WITH THE FLANGE STRESS FLUCTUATING FROM 25 KSI TO 50 KSI. THE ONLY VARIABLE WAS THE TRANSVERSE STIFFENER LENGTH. FROM THE TESTS IT IS CONCLUDED THAT THE U-SHAPED CRACKS THAT FORMED UNDER THE STIFFENERS IN ONE GIRDER WERE NOT FATAL AND THAT HYBRID PLATE GIRDERS UNDER COMBINED BENDING AND SHEAR HAVE A SHORTER FATIGUE LIFE THAN THE SAME GIRDERS UNDER PURE BENDING. FROM THE STATIC ULTIMATE TESTS IT IS CONCLUDED THAT BASLER'S TENSION FIELD THEORY CAN BE USED TO PREDICT THE ULTIMATE LOAD OF HYBRID PLATE GIRDERS UNDER COMBINED BENDING AND SHEAR. /AUTHOR/

• Supplemental Notes:
  • Res Rpt 96-2, PP 1-49, 29 FIG, 3 TAB, 8 REF
• Corporate Authors:

  University of Texas, Austin

  Center for Highway Research, 200 West 21st Street
  Austin, TX  United States  78712
• Authors:
  • Fielding, D J
  • Toprac, A A
• Publication Date: 1967-7

Subject/Index Terms

• TRT Terms: Bending; Breaking loads; Cracking; Fatigue tests; Plate girders; Shear strength; Steel; Stiffeners (Plates); Stresses
• Uncontrolled Terms: Hybrids
• Old TRIS Terms: Baslers tension theory; Stiffeners
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00208803
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 9 1994 12:00AM