What is the difference between Limit state method and working stress method?

Question

Accepted Answer

Limit state method considers the ultimate load capacity of the structure while working stress method considers the permissible stress limit.

Limit state method is a modern approach while working stress method is an older approach.
Limit state method considers the safety of the structure against ultimate failure while working stress method considers the safety of the structure against yielding.
Limit state method uses partial safety factors while working stress method uses a factor of safety.
Limit state method is more accurate and reliable than working stress method.
Examples of Limit state method include Load and Resistance Factor Design (LRFD) and Allowable Stress Design (ASD) while examples of working stress method include Rankine's theory and Coulomb's theory.

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