EXPERIMENTAL AND ANALYTICAL STUDIES ON THE SHEAR FAILURE OF PRETENSIONED I-BEAMS UNDER DISTRIBUTED LOADING

THE FIREHOSE TECHNIQUE WAS USED TO APPLY A UNIFORMLY DISTRIBUTED LOAD TO PRETENSIONED I-BEAMS WITH UNREINFORCED WEBS TO INVESTIGATE THEIR FAILURE IN SHEAR. A SEMI-EMPIRICAL RELATIONSHIP WAS FOUND BETWEEN THE CRACKING SHEAR FORCE AND THE SPAN-TO-DEPTH RATIO, BUT THERE WAS NO CORRELATION WITH THE RATIO OF MOMENT TO SHEAR FORCE. A COMPUTER PROGRAM WAS WRITTEN TO SEARCH THE WEB FOR THE POSITION OF MAXIMUM PRINCIPAL TENSILE STRESS. THIS POSITION PROVED IN PRACTICE TO BE TOTALLY UNRELATED TO THE POSITION OF THE OBSERVED FIRST CRACKS. SUBSEQUENT STAGES OF THE ANALYSIS DEALT WITH WAYS OF TAKING INTO ACCOUNT LOCAL STRESSES CAUSED BY THE REACTION FORCES. SATISFACTORY AGREEMENT WAS OBTAINED BY USING AN APPROXIMATE ANALYTICAL TECHNIQUE IN WHICH THE REACTIONS ARE CONSIDERED AS POINT LOADS ON INFINITE WEDGES.

  • Availability:
  • Supplemental Notes:
    • APP
  • Authors:
    • Arthur, P D
    • BHATT, P
    • Duncan, W
  • Publication Date: 1973-2

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00209861
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 8 1973 12:00AM