Experimental and theoretical evaluation of punching strength of steel fiber reinforced concrete slabs
- Citation:
- Experimental and theoretical evaluation of punching strength of steel fiber reinforced concrete slabs, Gouveia, Nuno D., Lapi Massimo, Orlando Maurizio, Faria Duarte M. V., and Ramos António M. P. , Structural Concrete, Volume 19, Issue 1, Number 1, p.217-229, (2018)
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.
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