Please use the following:

Floor Thickness $=0\mathrm{.}3m$

Concrete Unit Weight $=25k\frac{N}{m^3}$

Live Load $=5k\frac{N}{m^2}$

Weight of each beam $=1k\frac{N}{m}$

Weight of each girder $=2k\frac{N}{m}$

$(1)$ Draw the FBD for the beams: B$1,$ B$2,$ B$3$ and B$4$

$(2)$ Draw the FBD for the Girder G$1$

$(3)$ Calculate the total reaction for the Column C$1$