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Civil Engineering PE

Category - Struct. Loading

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Which of the following best describes the structural load-related term “racking”?

Significant vertical displacement
Significant lateral displacement
Slicing, splitting or breaking
All of the above

Explanation

Answer: B - The term “racking” is best described as significant lateral displacement. Racking results from lateral forces acting against a structure. For example, hydrostatic pressure acting against a circular underground tunnel can cause severe racking that deforms the circular shape into an oval shape. Severe winds can cause a barn structure to lean to one side.

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