Alabama Contractors License Practice Exam

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Study for the Alabama Contractors License Test. Prepare with quizzes featuring flashcards and multiple-choice questions, each supported by hints and explanations. Equip yourself for exam success!

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Wall ties must be used on a structural steel roof assembly when the wind uplift pressure exceeds how many pounds per square foot?

The correct answer is: 20

In structural engineering, wall ties are critical components used to stabilize and secure a building's components against wind forces. When the wind uplift pressure increases, the potential for a roof assembly to disconnect from the walls also rises. In Alabama, building codes specify that wall ties must be implemented on a structural steel roof assembly when the wind uplift pressure exceeds 20 pounds per square foot. This threshold is established to ensure the structural integrity of the building, particularly in areas prone to high winds. By using wall ties in scenarios where the uplift pressure is significant, the connections between the roof and the wall offer enhanced stability, reducing the risk of structural failure. This requirement reflects a standard practice aimed at maintaining safety and reliability in construction under adverse environmental conditions. Building codes are regularly updated to reflect advances in engineering practices and knowledge of wind forces, so understanding these thresholds is essential for any contractor engaged in construction and design.