400 mm 1- Consider the reinforced concrete T-beam shown in figure 1. Assume that & 18 steel bars are used in the tensile part of the section. Calculate the design flexural capacity, Mn? Please draw the stress strain diagram for the T-beam. fy = X3 MPa fe =X1 MPa 800 mm 80 mm 350 mm 200 mm 318 Figure 1