15 ft 5. Select the lightest W12, 15 ft long, Fy = 50 ksi steel beam-column for the first-order loads and moments shown in the Figure. The column is part of a braced frame system. Assume Cb-1.0. Do the caculations only for LRFD. Answer: W 12 X 96 T Pp - 125 k PL = 85 k Mox 140 ft-k Mpy = 22 ft-k MLx = 70 ft-k MLY = 16 ft-k Mpx=100 ft-k MDy = 16 ft-k Pp=125 k PL-85 k MLX - 50 ft-k MLy = 12 ft-k