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Experimental and theoretical evaluation of punching strength of steel fiber reinforced concrete slabs
Ist Teil von
Structural concrete : journal of the FIB, 2018-02, Vol.19 (1), p.217-229
Ort / Verlag
Weinheim: WILEY‐VCH Verlag GmbH & Co. KGaA
Erscheinungsjahr
2018
Link zum Volltext
Quelle
Wiley Online Library - AutoHoldings Journals
Beschreibungen/Notizen
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.