António Manuel Pinho Ramos

Citation:

SFRC flat slabs punching behaviour - Experimental research, Gouveia, Nuno D., Fernandes Nelson A. G., Faria Duarte M. V., Ramos António M. P., and Lúcio Válter J. G. , Composites Part B: Engineering, Volume 63, p.161–171, (2014)

Abstract:

The use of randomly distributed steel fibres in the concrete mix improves its mechanical properties. In the particular case of a flat slab-column connection, this solution can provide slabs with an increased load capacity and deformation capacity, allowing a potential reduction of reinforcement. This work presents the experimental study of the behaviour of SFRC flat slabs up to failure under a concentrated loading, accompanied by the study of the mechanical properties of the SFRC, which consisted in three-point loading notched beams, compression and splitting tests. In this study, the hooked end steel fibre dosages varied between 0{%} and 1.25{%} by volume. Test results showed that the inclusion of steel fibres influences both slab stiffness and its load capacity. Increments of load capacity up to 64{%} were obtained in slabs with SFRC compared with the reference slab without fibres. The experimental results were compared with the predictions provided by several existing models. © 2014 Elsevier Ltd. All rights reserved.

Notes:

n/a