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Punching Shear

Check two-way punching shear capacity of a slab around a square or rectangular column per ACI 318 §22.6.

Inputs

Method — ACI 318 §22.6
  • b₀ = 2(c1+d) + 2(c2+d) for interior; reduced perimeter for edge/corner.
  • vc = min[ 0.33·λ·√f'c, (0.17 + 0.33/β)·λ·√f'c, (0.083 + 0.083·αs·d/b₀)·λ·√f'c ].
  • φVc = 0.75·vc·b₀·d. Compare with Vu.

Results

b₀ (perimeter)
vc1 0.33√f'c
vc2 (β term)
vc3 (αs term)
vc governing
φVc
DCR Vu/φVc
Status