Shear resistant capacity of steel fibres reinforced concrete deep beams: An experimental investigation and a new prediction model

Simplified shear equation of deep concrete beam considering orientation effect of opening and mechanical properties of fibre-concrete interface

“…The results also show that the model by Ref. [ 27 ] with fibres had P and F values 50% less and 258% higher than those without fibres, respectively. This indicates that the high mean squares were obtained between independent columns of predicted shear capacities and measured shear capacities.…”

“…Since the number of fibres in a unit area is known, the total number of fibres along the length of the crack was derived by Ref. [ 27 ]. This considers the width of the beam, b, the number of fibres per unit area and the length of the diagonal crack, as in Eq.…”

“…The model by Ref. [ 27 ] considered precisely the effect of shear stress along the fibre-concrete interface but did not capture the effect of the opening since the introduction of the opening, the shear flow in the shear zone changes. Stuy by Ref.…”

“…The shear model involves several shear mechanisms such as dowel action, distribution bars, compressive strength, vertical stirrup mechanism and fibres effect has recently been established by Ref. [ 27 ]. However, the model was limited to only solid deep beams.…”

Distinguished punching shear behaviour of unbonded post-tensioned concrete slab – CFT column vs reinforced concrete slab – CFT column connections

“…In Phase 2, the sample was subjected to vertical loads to collapse by using a hydraulic jack with a capacity of 500 tons. It was observed in the previous experimental investigations [25,31,32] that a loading rate of 15-30 kN/min could simulate quasi-static loading and the load-bearing resistance of the samples in those studies was similar compared to the samples in this study. This loading rate of 15-30 kN/min was, therefore, selected in this study (Fig.…”