Calculate the cold and fire calculations if the beam span, width and depth are 12 m, Im and 1.5 m, respectively. The bottom cover is 40 mm and the each bar diameter is 20 mm for 10 bars. The dead and live loads are 8 kN/m and 4 kN/m, respectively. The density of plasterboard is 8 kN/m?. In addition, the plaster compressive strength is 18 MPa and the steel yield stress is 150 MPa with strength reduction factor of 0,9.