2. The simply supported wide-flange beam supports the loadings shown. Determine the principal stresses and maximum shear stress at points H and K. Show these stresses on a properly oriented stress element. Im 80 kN/m 60 kN 1 m 1.5 m 1.5 m 3m 200 mm 16 mm 75 mm 35 mm 9 mm 350 mm