M = wL²/8 | V = wL/2 | Δ = 5wL⁴/(384EI)
ACI 211 Mix Design Method | w/c = 0.45 typical for 4000 psi
q_ult = cNc + γDNq + 0.5γBNγ | Terzaghi Bearing Capacity
Q = (1.486/n) × A × R^(2/3) × S^(1/2) | Manning's Equation
AASHTO 1993 Design Guide | SN = a₁D₁ + a₂D₂m₂ + a₃D₃m₃
Recommended W-Section
W12x
φMn = φFyZx | AISC 360-16 | φ = 0.9 for flexure
Active Earth Pressure
0 psf
Total Lateral Force
0 kips
Overturning Moment
0 kip-ft
Ka = tan²(45 - φ/2) | Pa = 0.5 × γ × H² × Ka