Critical Loads of Columns with Pinned Supports
Calculate the critical load Pcr for a W 8 ×35 steel column (see figure) having length L = 24 ft and E= 30 ×106 psi under the following conditions:
(a) The column buckles by bending about its strong axis (axis 1-1), and
(b) the column buckles by bending about its weak axis (axis 2-2). In both cases, assume that the column has pinned ends.