Compute the dimensions of the rectangle shown in Fig. (b) that has the same k¯x and k¯y as the W8 × 67 section in Fig. (a). (See Prob. 9.13 for properties of W8 × 67.)
Answer: b = 7.35 in., h = 12.87 in
Extracted text: Figure (a) shows the cross section of a column that uses a structural shape known as W8 x 67 (wide-flange beam, nominally 8 in. deep, weighing 67 Ib/ft). The American Institute of Steel Construction Structural Steel Handbook lists the following cross-sectional properties: A = 19.7 in.?, I, = 272 in.“, and 1, = 88.6 in. 0.933 in. Web 9 in. 0.575 in. Flange -8.287 in. (a) (b) Fig. Pg.13-P9.15