Pr: Required axial force resistance for LRFD or ASD load combinations
Pc: Strength of axial compressive force available according to Section E
Mr: Required bending moment strength for LRFD or ASD load combinations
Mc: current bending moment strength according to Section F
Design for Axial Force and Flexural Moment
The strength calculation is made by taking into account the combined stresses created in the elements under flexural and axial force.
The superposition of the stresses only applies to similar stresses.
The superposition rule does not apply to stability losses.
Design with AISC 360-16
Equation H1.1 is used for biaxial and single symmetry axis members under the influence of axial compression and flexural moment.