(a) A steel truss is being designed. One of the tension members is 1200 mm long and is to carry an ultimate tension force, N* = 550 kN. Design a pair of back to back Equal Angle tension members of Grade 300PLUS steel. As shown in Figure Q2(a), these are connected back to back through a 10mm thick gusset plate so that each EA carries N*/2. There is one line of 12 mm bolts (14 mm holes) which are in double shear. Find the required Ag and section, and then check section fracture. As an initial guess, use fy = 320 MPa, fu = 440 MPa. Revise the fy value if required depending on the thickness. (b) For the end connection of the pair of Equal angles in Question 2 (a), determine the number of M12 Grade 8.8 bolts required to carry N* = 550 kN. Check for bolt shear and bearing on the 10mm thick Grade 300 gusset plate. (c) The beam in Figure Q2(c) is simply supported at A and B. It can be considered fully laterally restrained along its length which supports a distributed permanent load gk = 20 kN/m (dead weight of floor and finishes including an allowance of 1 kN/m for the steel beam itself) and a distributed variable load qk is 24 kN/m. Draw the ultimate limit state shear force and bending moment diagrams for this beam. Select a suitable Grade 350 UB section and verify it for bending and shear.