Answer Happy

A grade S355JR steel beam is required to support the loads as shown in Figure 2 below. Lateral support to the compression flange will be provided at the position of the point loads, and the supports may be considered to be restrained against torsion. Initial calculations have shown that A 533 x 210 x 82 l-section is adequate. Ignoring the self- weight of the beam. Do the following: (30) 2.1 Draw the shear force and bending moment diagrams showing all critical values. (7) 2.2 Check shear and flexure on the critical segment B-C. (18) 2.3 Determine the magnitude of the maximum ultimate point load that could be placed on the beam directly above support D if the length of stiff bearing at the support is 100 mm. (consider yielding and crippling). (5) Dead load = 10 KN Live load = 9.5 kN Dead load = 21 kN Live load = 20 kN Dead load = 5 kN/m Live load = 2 kN/m B C 5m 2m Figure 2: Simply supported beam AL 2m [30 Marks]