Allowable Stress vs Strength Design: Where Limit States Fit
Allowable stress design checks service-level demand against a reduced allowable resistance, while strength design checks factored demand against nominal resistance reduced by a strength factor. Limit-state design is the broader idea of verifying every condition that would make a structure unacceptable, including collapse, excessive deflection, cracking, fatigue and instability. It is therefore misleading to treat … Read more