Inputs
Method — ACI 318 §11.5
- Vc = 0.17·λ·√f'c·tw·d (simplified); d = 0.8·Lw.
- Vs = ρt·fy·tw·d. φVn = φ(Vc+Vs); φ = 0.75; ≤ 0.83·√f'c·tw·d.
- ρt,min = 0.0025; ρl,min = 0.0025 (0.0015 if controlled).
- Boundary element required when c > Lw/600·(δu/hw)⁻¹ (ACI 318 §18.10.6) — flagged when ρl > 0.01.
Results
Effective d—
Vc—
Vs (from ρt)—
φVn—
Vu / φVn—
Vmax (upper limit)—
Status—
Boundary Element?—