PROPOSALS FOR SERVICEABILITY LIMIT STATE DESIGN OF CONCRETE STRUCTURES REINFORCED WITH EPOXY COATED BARS

This paper reports the effects of the change in bond characteristics on flexural cracking and deflection of reinforced concrete beams. Crack width in beams reinforced with FBECR (Fusion Bonded Epoxy Coated Reinforcement) is greater than that in similar beams reinforced with ordinary ribbed bars. The extent of the difference depended on a number of factors including cover, bar diameter and reinforcement percentages. The increase is attributable to an increase in spacing of cracks together with a reduction in the tension stiffening contribution of concrete. The reduction in tension stiffening also results in an increase in deflections. It is shown that existing methods for calculation of structural behaviour at the serviceability limit state predict changes in performance with satisfactory accuracy. Proposals for modified coefficients to be used in these methods are developed to enable incorporation of findings into relevant Codes of Practice for structural design. (A) For the covering abstract see IRRD 867793.

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 1231-43

Subject/Index Terms

Filing Info

  • Accession Number: 00675082
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 1-85075-723-2
  • Files: ITRD
  • Created Date: Mar 28 1995 12:00AM