Explain the Strength Design (LRFD)
1. γ Factors are applied to loads and φ factors applied to resistance.
2. Unfactored service loads receive a load factor γ > 1.0
3. Resistance values receive a φ < 1.0 factor to reduce anticipated demand
γ_{u}M_{u} = 1.2*M_{DL} + 1.6*M_{LL} < φ_{n}M_{n}
Where: γ_{u}M_{u} is the factored service load
φ_{n}M_{n} is the reduced capacity
4. There are cases where load factors may be less than 1.0 when the load may 'help' the analysis.