Experimental and theoretical evaluation of punching strength of steel fiber reinforced concrete slabs

Nuno D. Gouveia, Massimo Lapi, Maurizio Orlando, Duarte M. V. Faria, António M. P. Ramos

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

This paper deals with the experimental and theoretical evaluation of punching shear capacity of steel fiber reinforced concrete (SFRC) slab–column connections. Five experimental specimens with a thickness of 160 mm, different fiber volume contents (0, 1.0, and 1.5%) and different flexural reinforcement ratios (0.75 and 1.5%) have been tested. The experimental results were evaluated using a physical–mechanical model based on the critical shear crack theory (CSCT). The model has given a good approximation of experimental punching shear strengths. In general, tests have highlighted a significant increase in load and deformation capacity of fiber reinforced concrete slab–column connections in comparison with reinforced concrete connections.

Original languageEnglish
Pages (from-to)217-229
Number of pages13
JournalStructural Concrete
Volume19
Issue number1
DOIs
Publication statusPublished - 1 Feb 2018

Keywords

  • CSCT
  • experimental tests
  • mechanical model
  • punching
  • SFRC

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