Minimum Shear Reinforcement av,min According to ACI 318-19, 9.6.3.4

Minimum Shear Reinforcement a_v,min According to ACI 318-19, 9.6.3.4

a_{V, \min} = \frac{A_{v}}{s} = \max [0.75 \cdot \sqrt{f_{c}^{'}} \cdot \frac{b_{w}}{f_{yt}}; 50 \cdot \frac{b_{w}}{f_{yt}}]

a_v,min	Minimum shear reinforcement
A_v	Cross-sectional area of the shear reinforcement
s	Distance of the stirrups
f'_c	Concrete compressive strength
b_w	Width of cross-section
f_y	Yield strength of reinforcing steel

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