Minimum area of shear reinforcement (beams: ACI 318)
The minimum area of shear reinforcement required, Av,min is given by1;
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Av,min |
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MAX (0.062* f`c0.5 *bw*s/ fyt , 0.35MPa*bw*s/ fyt, Av,min,u) | metric-units |
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MAX (0.75* f`c0.5 *bw*s/ fyt , 50psi*bw*s/ fyt, Av,min,u) | US-units | ||
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where |
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s |
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the spacing of the shear reinforcement along the longitudinal axis of the beam | |
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fyt |
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yield strength of transverse reinforcement | |
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Av,min,u |
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the total minimum area of the shear reinforcement calculated from
data supplied by the user i.e. maximum spacing across the beam,
minimum link diameter and number of legs. i.e. maximum spacing across the beam, minimum link diameter and number of legs |
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1 ACI 318-08, ACI 318-11, ACI 318M-08 and ACI 318M-11
Section 11.4.6.3