Shear Capacity Contribution of Steel Fiber Reinforced High-Strength Concrete Compared with and without Stirrup

International Journal of Concrete Structures and Materials

Table 8 Summary of beam test results.

	V_cr (kN)	V_u,exp (kN)	δ_u (mm)	ε_L (mm/mm)	ε_T (mm/mm)	θ_exp (°)	Failure mode
NS-N	51.4	226.0	7.70	0.001326	–	42	Shear
105S-N	30.4	537.8	29.44	0.008573	0.002437	52	Shear
158S-N	35.8	493.7	24.50	0.003654	0.001163	47	Shear
210S-N	45.9	389.4	18.08	0.002570	0.002355	41	Shear
NS-SF	56.2	411.1	17.90	0.002362	–	38	Shear

V_cr = initial shear crack, V_{u, exp} = ultimate shear strength of experimental test, δ_u= deflection at peak load, ε_L= average maximum strain of longitudinal reinforcement measured by strain gages at bottom layer of the mod-span, ε_T= maximum strain of shear reinforcement by the strain gage at the outside of the center layer, θ_exp= measured angle of the inclination of the critical shear crack at beam mid-height.