Calculate the nominal flexural capacity Ms of the lightly-welded cross-section shown in Figure-1 for bending about both x-x and y-y axis. All plates are steel Grade 400 that complies with AS/NSZ3678 requirements. Note: Both Msx and Msy should be calculated. Figure-1 QUESTION 2 (Design of flexural members) (25 Marks) Determine the maximum design load of P* that can be applied on the fully laterally restrained beam shown in Figure-2. The beam cross-section is shown in Figure-2. The beam cross-section is heavilywelded and the web & flange plates are steel Grade 400 complying with AS/NSZ3678 requirements. Note: Ignore the self-weight of the beam in your calculations. The cross-section is doubly-symmetric. Figure-2 2 QUESTION 3 (Design of flexural members) (50 Marks) Determine the maximum imposed action (live load) wQ that can be applied on the beam (250UB37.3, Steel Grade 300PLUS) shown in Figure-3. The beam is under a permanent action of wG =10 kN/m as shown in Figure-3. Both permanent and imposed actions are uniform distributed loads and applied on top flange along the whole beam. The beam section at support B is partially restrained and at support D it is fully restrained. There is no lateral rotational restraint along the beam. Self-weight of the beam has been already considered in wG . Note: Only flexural strength design requirements should be considered. Assume bearing capacity of the web is adequate. Figure-3