BOND OF DEFORMED BARS TO CONCRETE: EFFECTS OF CONFINEMENT AND STRENGTH OF CONCRETE

Slippage of the beam reinforcement at beam-column connections is an important cause of damage to reinforced concrete frames under static and dynamic loads. This paper summarizes the results of an experimental study on the effects of confinement and compressive strength of concrete on the local bond stress-slip characteristics of deformed bars. The test data indicate that, as far as the bond-splitting cracks are restrained by reinforcing bars crossing these cracks, confinement of concrete has insignificant effects on the local bond behavior. The ultimate bond strength, however, increases proportionally with the square root of concrete compressive strength. An empirical model was develped for local bond stress-slip relationship of deformed bars in confined concrete.

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  http://www.concrete.org/Publications/InternationalConcreteAbstractsPortal.aspx.aspx?m=details&i=1818
• Availability:
  • Find a library where document is available. Order URL: http://www.aci-int.org/PUBS/JOURNALS/AbstractDetails.asp?srchtype=phrase&date=anytime&searchmonth=6&searchday=0&searchyear=1991&publication=Materials+Journal&volume=88&issue=3&title=BOND+OF+DEFORMED+BARS+TO+CONCRETE%3A+EFFECTS+OF+CONFINEMENT+AND+STRENGTH&
• Corporate Authors:

  American Concrete Institute

  P.O. Box 19150, Redford Station, 22400 Seven Mile Road
  Detroit, MI  United States  48219
• Authors:
  • Soroushian, P
  • Choi, K-B
  • Park, G-H
  • Asiani, F
• Publication Date: 1991-6

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 227-232
• Serial:
  • ACI Materials Journal
  • Volume: 88
  • Issue Number: 3
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-325X
  • Serial URL: https://www.concrete.org/publications/acimaterialsjournal.aspx

Subject/Index Terms

• TRT Terms: Bars (Building materials); Bonds; Concrete; Deformation; Frames; Reinforced concrete; Reinforcement (Engineering); Strength of materials; Stresses
• Uncontrolled Terms: Concrete strength; Confinement; Slippage
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00610774
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 31 1991 12:00AM