Evaluation of minimum shear reinforcement requirements for higher strength concrete

Özcebe G., Ersoy U., Tankut T.

ACI Structural Journal, vol.96, no.3, pp.361-368, 1999 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 96 Issue: 3
  • Publication Date: 1999
  • Journal Name: ACI Structural Journal
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.361-368
  • Keywords: beams (supports), cracking (fracturing), ductility, high-strength concretes, shear strength, stirrups, BEAMS
  • TED University Affiliated: No


This paper presents an evaluation on the minimum shear reinforcement requirements given in the ACI, Canadian, and Turkish codes for high-strength concrete. Thirteen beams having the minimum shear reinforcement required by ACI 318-83, the Turkish Code, and the equations proposed in this paper were tested. Concrete strength varied between 60 and 80 MPa (8700 and 11,600 psi). For high-strength concrete (f′c > 69 MPa), the minimum shear reinforcement requirements of the Turkish Code and ACI 318-95 are not very different from one another. Similarly, requirements of the 1994 Canadian Code (CSA A23.3-94) are not too different from the proposed equation. In light of the test results, the adequacy of code requirements are discussed. Emphasis is given to reserve strength, ductility, and cracking.