I design an asymmetric cross-section and get the message: "Non-designable: ER051) Moment about z‑axis on asymmetric cross-section, taper or set of members." Why?
I am designing a tapered beam and I get the message "Non-designable: ER051 Moment about z-axis on asymmetric cross-section, taper, or set of members". Why?
I am designing a set of members with a uniform, double-symmetric cross-section and I get the warning "Non-designable: ER051 Moment about z-axis on asymmetric cross-section, taper, or set of members". Why?