The W150 x 22 A-36 steel column as shown in Figure 4 is fixed at its base. Its top is constrained to rotate about the y-y axis and free to move along the y-y axis. Also, the column is braced along the x-x axis at its mid-height. (Given: y = 250MPa & E.-200GPa). i) Determine the allowable eccentric force P that can be applied without causing the column either to buckle or yield. Use F.S. = 2.0 against buckling and F.S. = 1.7 against yielding. ii) If the allowable eccentric force P, in (a) is increased 5 kN more, determine the maximum normal stress in the column. 5 m 5 m 100 mm Figure 4