UNSYMMETRICALLY REINFORCED T-BEAMS SUBJECT TO COMBINED BENDING AND TORSION

THE BEHAVIOR OF WEB REINFORCED T-BEAMS, CONTAINING A DIFFERENT AMOUNT OF LONGITUDINAL STEEL IN THE BOTTOM THAN IN THE TOP AND SUBJECTED TO COMBINED BENDING AND TORSION, WAS INVESTIGATED. EIGHTEEN FULLY REINFORCED CONCRETE T-BEAMS, ALL HAVING THE SAME NOMINAL CROSS SECTION, WERE TESTED UNDER VARIOUS COMBINATIONS OF MOMENT AND TORSION. TWELVE BEAMS CONTAINED MORE LONGITUDINAL STEEL IN THE BOTTOM THAN IN THE TOP, AND SIX CONTAINED MORE LONGITUDINAL STEEL IN THE TOP THAN IN THE BOTTOM. ALL BEAMS WERE LOADED IN SMALL INCREMENTS TO ULTIMATE LOAD. FOR EACH LOAD INCREMENT CORRESPONDING ANGLES OF TWIST, BEAM DEFLECTIONS, AND REINFORCING STEEL STRAIN READINGS WERE TAKEN. CRACKS WERE NOTED AS THEY DEVELOPED, AND THE FINAL FAILURE SURFACE WAS RECORDED. METHODS ARE PRESENTED TO PREDICT THE ULTIMATE LOAD CAPACITY OF UNSYMMETRICALLY REINFORCED T-BEAMS SUBJECTED TO COMBINED BENDING AND TORSION. EXPERIMENTAL ULTIMATE LOAD INTERACTION CURVES ARE ALSO PRESENTED. /AUTHOR/

  • Authors:
    • Kirk, D W
    • Loveland, N C
  • Publication Date: 1972-8

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  • Accession Number: 00209793
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 8 1973 12:00AM