In Typical Strength Design Practice, for components not traditionally governed by wind force effects, the ___ and ___ Load Combinations should not govern.

• A. Strength I and II
• B. Strength III and V
• C. Strength II and IV
• D. Strength I and III

Answer: (B)

The key idea is that not every component in abridge is controlled by wind effects, so you don’t check it against load cases that are driven by wind. In typical strength design, certain load combinations are created specifically to represent wind-dominated or wind-affected demands. For parts that aren’t traditionally governed by wind, those wind-focused combinations should not control the design because they would overstate the demand and lead to unnecessary overdesign. The two combinations that explicitly account for wind effects are the ones that should be avoided for such components, so the correct choice is the pair that represents the wind-influenced sets.