A ISWB $600$@$145\mathrm{.}1$ kg$/$m is supported over a length of $5$m$.$ Its one end is fixed, and the other end is hinged. It is loaded

with a uniformly distributed load W and a concentrated load of $0\mathrm{.}5$W at $2$m from the fixed end. Find the value of W for

collapse to take place. If the load factor is $2,$ find out the value of safe working load. Given that Zxx$=3\mathrm{.}854$ x $105$ mm$3$

;

Shape Factor $=1\mathrm{.}14$ and yield Stress of the material $=250$N$/$mm$2$