A SOLUTION TO CRACKING AND STRESSES CAUSED BY DOWELS AND TIE BARS

Dowel and tie-bar problems are discussed, and it is shown how they can be easily and economically overcome by using square bars with a clip-on plastic sheath having compressible material on its sides. Using a square bar instead of a round bar provides total vertical load transfer while allowing a compressible material to attach to the side of the bar. The compressible material needs to be attached to one side of the bar along its full length or two opposite sides of the bar for half the bar length. The compressible side material also solves the problem of misalignment. Other advantages are also noted. The creation of the tie-bar rather than the dowel, and the attaching compressible side material are described, as well as the installation procedure. Corrosion protection and other related advantages are pointed out.

Media Info

  • Features: Figures;
  • Pagination: p. 40-45
  • Serial:
    • Concrete International
    • Volume: 13
    • Issue Number: 7
    • Publisher: American Concrete Institute (ACI)
    • ISSN: 0162-4075

Subject/Index Terms

Filing Info

  • Accession Number: 00611175
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 31 1991 12:00AM