Chapter 11, Problem 11.6.9P

A steel column (E = 30 x 10³ ksi) with pinned ends is constructed of a W10 x 60 wide-flange shape (sec figure). The column is 24 ft long. The resultant of the axial loads acting on the column is a force P acting with an eccentricity n = 2.0 in.

1. If P = 120 kips, determine the maximum compressive stress ff^ in the column.

Determine the allowable load P_allowif the yield stress is ( ${\sigma }_{\text{y}}$

=42 ksi and the factor of safety with respect to yielding of the material is n = 2.5.