Practice Problem 10-3 Back | Index | Next

Given: A W12x40 wide-flange shape (A = 11.8 in2) made of ASTM A36 (E = 30 Msi) structural steel is 30 ft long and is to be used as a vertical column with the bottom end fixed and the top end pinned. The critical radius of gyration for this column is r = 1.93 in.

Req'd: Determine the critical buckling stress scr .

scr =  ksi  (1%)