WX sxsl from support a .. X Figure (a) shows the cross-section of a built-up simply supported T-beam A-B shown in Figure (b). The distribution of the bending moment due to an applied loading is given by the equation: P M. (x 2 where: is the uniformly distributed load acting on the beam (w = 20 kN/m) P is a point load acting on the beam (P= 2 kN) 1 is the span of the beam (I= 5.8 m) is a distance measured from support A of the beam (in metres) (1) Plot the vertical shear stress distribution across the beam section at a distance x = = m from support A of the beam. 3 (ii) Determine the required maximum bolt spacing (s) if each weld has an allowable load in shear of 25 N/mm while each bolt has a shear capacity of 1.5 kN. Note: The welds are continuous along the length of the member. Ixx for the section is 2.302 x 107 mm 100 + 712 21 100 Weld 90 Bolt and nut 90 2 @ 10 mm 90 +++ 90 All dimensions in mm 1 (b)