STATIC TESTS ON HYBRID PLATE GIRDERS

STATIC TESTS ARE DESCRIBED OF SIX HYBRID PLATE GIRDERS COMPRISED OF A514 STEEL FLANGES AND A36 STEEL WEB. FIVE SPECIMENS WERE TESTED UNDER PURE BENDING AND ONE UNDER HIGH SHEAR. THE BENDING TESTS WERE CONDUCTED TO PROVIDE INFORMATION ON THE BUCKLING BEHAVIOR OF THE COMPRESSION FLANGE AS IT IS AFFECTED BY THE YIELDING IN THE WEB AND TO DETERMINE EXPERIMENTALLY THE ULTIMATE LOADS AND TO COMPARE THEM WITH REFERENCE VALUES COMPUTED ON THE BASIS OF ELASTIC AND PLASTIC BEAM THEORY. THE SHEAR TESTS WERE CONDUCTED TO INVESTIGATE HOW WELL THE CURRENT ULTIMATE SHEAR-STRENGTH THEORY PREDICTS THE ACTUAL STRENGTH DETERMINED BY TESTS. WEB SLENDERNESS RATIOS AND FLANGE WIDTH-TO-THICKNESS RATIOS WERE VARIABLES CONSIDERED IN THE BENDING TESTS. FOR THE SHEAR TESTS, ONLY THE TRANSVERSE STIFFENER SPACING WAS VARIED. THE BEHAVIOR OF EACH GIRDER IS DESCRIBED AND RESULTS PRESENTED. IN ALL GIRDERS, THE ULTIMATE LOAD EXCEEDED THE WEB YIELD LOAD BY A SUBSTANTIAL MARGIN, DEPENDING PRIMARILY ON THE B/T RATIO OF THE COMPRESSION FLANGE. IT WAS DETERMINED THAT TENSION-FIELD THEORY COULD BE USED TO PREDICT THE ULTIMATE LOAD FOR HYBRID GIRDERS SUBJECTED TO HIGH SHEAR. /AUTHOR/

• Supplemental Notes:
  • Res Rept No 97-IF, 69 PP, 56 FIG, 7 TAB, 8 REF
• Corporate Authors:

  University of Texas, Austin

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

Subject/Index Terms

• TRT Terms: Bend tests; Breaking loads; Flanges; Forecasting; Plate girders; Shear strength; Shear tests; Spacing; Static tests; Steel; Stiffeners (Plates); Theory; Thinness; Webbing
• Uncontrolled Terms: Hybrids; Slenderness ratio
• Old TRIS Terms: Stiffeners
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00208882
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 31 1994 12:00AM