4. A W 10 X 49 is used as a 40-ft-long column. The column is assumed fixed at the bottom,

pined top and all other connections as pin connection, and its weak axis is braced at a point

22 ft up from the lower end as shown. Determine the allowable load capacity of the

W 10 x 49. Use ASTM A992 steel with Fy = 50 ksi.

Given: For W 10 x 49, Area = 14.4 in², rx = 4.35 in, and ry = 2.54 in

18 ft

22 ft

W 10 x 49 Column