A W12 x 50 column is made from ASTM A572 Gr. 60 steel and has a length of 15 ft. The column is only supported at its ends. Both ends are fixed. Determine the nominal compressive strength, Pn, for this column. Assume the shape is nonslender.

For LRFD, the value of φc is _____.

Determine the effective length of the following column where L = 12 ft. One end is fixed. The other end is fixed against rotation but free to translate.

Determine the Euler bucking stress for a structural steel column that has a length of 12 feet and a radius of gyration of 3.6 inches.

Determine the Euler bucking stress for a structural steel column that has a length of 8 feet and a radius of gyration of 2.6 inches.

Determine the Euler bucking stress for a structural steel column that has a length of 10 feet and a radius of gyration of 3.8 inches.

A W14 x 90 column is made from ASTM A36 steel and has a length of 33 ft. The column is only supported at its ends. Both ends are fixed. Determine the allowable strength, Pn/Ωc, for this column. Assume the shape is nonslender.

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 350 kips.

From a practical standpoint, if a tension member to be analyzed can be found in the column load tables, then these tables should be used.

Select the lightest HP16 column with an effective length of 15 feet that can support a dead load of 260 kips and a live load of 780 kips. Assume Fy = 50 ksi. Use ASD.