A column is fabricated by bolting a 1/4 x 6 plate to the top and bottom of a W14x257. Determine the moment of inertia about the x axis.

A W10 x 77 column is made from ASTM A572 Gr. 42 steel and has a length of 17 ft with Kx = 2.2 and Ky = 1.0. Determine the nominal compressive strength, Pn, for this column. Assume the shape is nonslender.

A W16 x 50 column is made from ASTM A36 steel and has a length of 19 ft with Kx = 2.3 and Ky = 1.0. Determine the nominal compressive strength, Pn, for this column. Assume the shape is nonslender.

A W14x257 made with A992 steel is pinned at both ends and braced in the weak direction as shown. Determine the value of the controlling slenderness ratio Lc/r. Let L1 = 31 ft, L2 = 11 ft, and L3 = 20 ft.

A column is fabricated by bolting a 1 x 6 plate to the bottom of a W14x370. Determine the distance from the bottom of the plate to the centroid of the composite cross section.

The designer should provide extra support for the weak direction of a column. Otherwise the member will be inefficient.

The shear center is the point on the cross section through which a transverse load on a beam must pass if the member is to bend without twisting.

In the first Abilene Paradox video (animated), how was the drive to Abilene described?  

A W14x257 made with A992 steel is pinned at both ends and braced in the weak direction as shown. Determine the value of the controlling slenderness ratio Lc/r. Let L1 = 31 ft, L2 = 12 ft, and L3 = 19 ft.

A W14x74 made with A992 steel is pinned at both ends and braced in the weak direction as shown. Can it support a dead load of 190 kips and a live load of 130 kips? Use ASD. Let L1 = 24.4 ft, L2 = 8.4 ft, and L3 = 16.0 ft.