Moment Capacity Calculator
Calculate flexural moment capacity of rectangular and T-beam concrete sections per ACI 318.
Section Properties
in
in
PSI
ksi
sq in
sq in
in
Design Moment Capacity (phi*Mn)
209.9 ft-kip
Nominal Mn = 233.2 ft-kip | phi = 0.90
Effective Depth d
21.50"
Stress Block a
3.47"
Neutral Axis c
4.08"
Beta1
0.850
Min Reinforcement: OK
rho = 0.915% vs rho_min = 0.333%
Ductility: OK (Tension Controlled)
epsilon_t = 1.280% vs 0.5% limit
Section Analysis:
Reinforcement Ratio0.915%
Maximum Ratio2.064%
Steel Strain1.280%
Strength Reduction phi0.90