The W200 x 59 A-36 steel column shown in Figure below is fixed at its base and braced at the top ...

The W200 x 59 A-36 steel column shown in Figure below is fixed at its base and braced at the top so that it is fixed from displacement, yet free to rotate about the y-y axis. Also, it can sway to the side in the y-z plane. (a) Derive Secant Formula with the effect of an eccentric loading for maximum stress in the column; (b) Determine the maximum eccentric load the column can support before it either begins to buckle or the steel yields. Take oj- 345 MPa. 200 mm 2.8 m 4 m 4 m (b) y-y axis buckling