Civil engineeringQUESTION $2$

Determine the maximum stress in the column for the given steel frame illustrated in the

following figure. Assume $=5\%.$

$E=2\mathrm{.}1e5\frac{N}{m}{m}^2$

$I=(2880N)c{m}^4$

$G=9\mathrm{.}81\frac{m}{se{c}^2}$

$F(t)=(900N)sin5\mathrm{.}3t$

$W=(67500N)$ Newton