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Many of the shapes commonly used for columns are not slender, and the reduction factor Q will not be needed.

A W12 x 50 column is made from ASTM A572 Gr. 42 steel and has a length of 19 ft. Both ends are fixed against rotation and translation. Determine the effective slenderness ratio.

A W14 x 90 column is made from ASTM A572 Gr. 60 steel and has a length of 20 ft. The column is only supported at its ends. Both ends are fixed. Determine the elastic buckling stress, Fe, for this column.

Determine the effective length of the following column where L = 16 ft.

What is L/r?

Using the column load tables, select the lightest W14-shape with an effective length of 15 ft that will support an LRFD design load of 450 kips.

A W16 x 50 column is made from ASTM A572 Gr. 42 steel and has a length of 36 ft. The column is only supported at its ends. Both ends are fixed. Determine the design strength, φcPn, for this column. Assume the shape is nonslender.

Select the lightest HP16 column with an effective length of 15 feet that can support a dead load of 170 kips and a live load of 510 kips. Assume Fy = 50 ksi. Use ASD.

A W10 x 77 column is made from ASTM A572 Gr. 42 steel and has a length of 28 ft. The column is only supported at its ends. Both ends are pinned. Determine the nominal compressive strength, Pn, for this column. Assume the shape is nonslender.

Can a W14 x 53 column with an effective length of 12 feet support a dead load of 80 kips and a live load of 60 kips? Use LRFD.