Shear behaviour of SFR-UHPC I-shaped beams

• A mix of short fibres and long fibres has been chosen to be added in the concrete.
• All the tested beams showed a shear failure through the web.
• The conducted tests confirm the feasibility of SFR-UHPC for I-shaped concrete beams.

The paper presents the details of an experimental study on the shear behaviour of SFR-UHPC (steel fibre-reinforced ultra-high performance concrete) I-shaped beams with or without web openings. In addition, partial replacement of shear links is investigated by comparing steel fibres with or without a single additional diagonal rebar. The object of the research was to study the shear capacity of 10 I-shaped beams made from SFR-UHPC that were tested in shear until failure with two a/dratios.