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.

Experimental and theoretical evaluation of punching strength of steel fiber reinforced concrete slabs / Gouveia, Nuno D.; Lapi, Massimo; Orlando, Maurizio; Faria, Duarte M. V.; Ramos, António M. P.. - In: STRUCTURAL CONCRETE. - ISSN 1751-7648. - ELETTRONICO. - -(2017), pp. 1-13. [10.1002/suco.201700136]

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

Massimo Lapi;Maurizio Orlando;
2017

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.
-
1
13
Gouveia, Nuno D.; Lapi, Massimo; Orlando, Maurizio; Faria, Duarte M. V.; Ramos, António M. P.
File in questo prodotto:
File Dimensione Formato  
AS5612206507827201510816838329_content_1 (1).pdf

Accesso chiuso

Descrizione: Articolo principale
Tipologia: Pdf editoriale (Version of record)
Licenza: DRM non definito
Dimensione 5.2 MB
Formato Adobe PDF
5.2 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2158/1102342
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 27
  • ???jsp.display-item.citation.isi??? 24
social impact