TORSION OF PLATE GIRDERS

ANALYTICAL AND EXPERIMENTAL RESEARCH WAS UNDERTAKEN AT LEHIGH UNIVERSITY, BETHLEHEM, PENNSYLVANIA, TO DETERMINE THE STRESS DISTRIBUTION, STIFFNESS AND STRENGTH OF BOLTED, RIVETED AND WELDED PLATE GIRDERS UNDER UNIFORM TWISTING MOMENT. SEVENTY-TWO TESTS WERE MADE ON FIFTEEN DIFFERENT SPECIMENS. ELEVEN OF THE SPECIMENS WERE FINALLY TESTED INTO THE PLASTIC RANGE. THE TESTS WERE MADE ON THE TWO MILLION INCH-POUND TORSION TESTING MACHINE. TEST VARIABLES INCLUDED THE NUMBER OF COVER PLATES, THE RIVET PITCH, VARIABLE TENSION IN BOLTS AND A VARIETY OF GIRDER CROSS-SECTION SIZES UP TO FOUR FEET IN DEPTH, WITH OR WITHOUT STIFFENERS. FORMULAS ARE PROPOSED FOR CALCULATING RIVET OR BOLT PITCH AND SIZE OF WELDS FOR THE BOLTED, RIVETED AND WELDED PLATE GIRDERS, OR WHEN RIVET PITCH OR WELD SIZE ARE GIVEN, THE TORSIONAL STIFFNESS STRENGTH CAN BE PREDICTED. EQUATIONS FOR EVALUATING THE TORSION CONSTANT OF BUILT-UP PLATES AND PLATE GIRDERS ARE DEVELOPED AND ILLUSTRATIVE EXAMPLES ARE GIVEN. EQUATIONS FOR BUILT-UP PLATES, RIVETED OR BOLTED PLATE GIRDERS, AND WELDED PLATE GIRDERS ARE RECOMMENDED FOR PRACTICAL DESIGN PURPOSES. /ASCE/

  • Supplemental Notes:
    • Vol 118 PapER NO 2549, PP 337-382
  • Authors:
    • CHANG, F K
    • Johnston, B G
  • Publication Date: 1953

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  • Accession Number: 00208521
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 10 1994 12:00AM