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 journalArticlepeer-review

22 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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