A simply supported reinforced concrete beam has an effective span of 6 m with effective depth d = 450 mm and width b = 300mm . The imposed loading is 20 kN/m and the dead load (inclusive of self-weight) is 12 kN/m. The concrete is grade C25 (f = 25 N/mm²) and high yield steel (f_{y} = 500N / m * m ^ 2) is specified.
a) Produce a sketch showing the beam span with design loading and cross section.