Answer Happy

Column CD in the unbraced frame is oriented with major-axis bending and is a W12x106. Using the Direct Analysis Method, determine the maximum required moment Mr the column can resist if, based on a 2nd-order analysis, Pr = ( 165 ) kips. Use minor-axis buckling for the axial load capacity in Table 4-1a, and Lb = 20 ft and Cb = (1.066 ) for the bending moment capacity in Table 3-10 I -
13 ft D 20 ft 7/12 С 71172 28 ft + 28 ft