P-M Diagram for Circular Columns

(Based on AASTHO LRFD 8th Edition & ACI 318-14)

Input Parameters:


Calculated Parameters :

Gross sectional area, Ag =

Gross moment of inertia, Ig =

Total steel area, As =

Percent of steel =

Main bar spacing =

Main bar clear spacing =

Plot (Pu, Mu) for different load cases in the above chart :

Load Case Pu (kips) Mu (k-ft)