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Efficient columns

The radius of gyration in the Y-Y axis would be equal to that in the X-X axis in an ideally efficient column. Which of the following sections are most appropriate for both heavy loads and for which many beam connections will be necessary?
A. pipe column
B. square tube column
C. wide-flange column
D. C-shape channel
E. WT shapes

AnswerC. wide-flange column. Pipe & square tube columns are more ideal shapes, but are appropriate for light to moderate loads. The radius of gyration of wide-flange shapes can be nearly or close to equal.

ARE 4.0 exam prep: SS

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