Improving punching shear behavior of glass fiber-reinforced polymer reinforced slabs

Joo Ha Lee, Young Soo Yoon, William D. Cook, Denis Mitchell

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

The influence of the type of reinforcement (glass fiber-reinforced polymer [GFRP] versus steel bars) on punching shear resistance was investigated. In addition, the effects of concentrating the reinforcement in the immediate column region and the influence of using steel fiber-reinforced concrete (SFRC) in the slab were also studied. The punching shear capacity, stiffness, ductility, strain distribution, and crack control were investigated. Concentrating the slab reinforcement and the use of SFRC in the slab enhanced the punching behavior of the slabs reinforced with GFRP bars. Predictions using different design guidelines are compared to the experimental results obtained from the fiber-reinforced polymer (FRP) reinforced slabs tested in this study and those tested by other researchers. Concentrating the top mat of flexural reinforcement results in beneficial effects on punching shear strength, post-cracking stiffness, and crack control.

Original languageEnglish
Pages (from-to)427-434
Number of pages8
JournalACI Structural Journal
Volume106
Issue number4
Publication statusPublished - 2009 Jul

Keywords

  • Fiber-reinforced polymer
  • Punching shear
  • Slabs
  • Steel fibers

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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