Benefits of concentrated slab reinforcement and steel fibers on performance of slab-column connections

Peter J. McHarg, William D. Cook, Denis Mitchell, Young Soo Yoon

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Six two-way slab-column specimens, designed to fail in punching shear, were tested. The parameters investigated were the placement of steel fiber-reinforced concrete (SFRC) in the slab, and the concentration of slab reinforcement around the column. The effects of these parameters on the punching shear capacity, negative moment cracking, and stiffness of the two-way slab specimens were investigated. Currently, there is no beneficial effect in the 1993 ACI Code for using fiber-reinforced concrete or concentrated slab reinforcement near the column in the calculation for the punching shear resistance. The beneficial effects of concentrating the slab reinforcement near the column and of using fiber-reinforced concrete are demonstrated.

Original languageEnglish
Pages (from-to)225-234
Number of pages10
JournalACI Structural Journal
Volume97
Issue number2
Publication statusPublished - 2000 Mar

Keywords

  • Crack width and spacing
  • Ductility
  • Fiber-reinforced concretes
  • Punching shear
  • Steels
  • Stiffness
  • Strains
  • Strength

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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