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Figure Q3(a) shows a gusset plate used to connect members of a truss. А 60 kN 30° 45° D B С 36 kN 50 KN 80 kN Figure Q3(a): Forces acting on gusset plate [10] (a) Draw a vector diagram to scale of the forces acting on the gusset plate in figure Q3(a), and hence determine the magnitude and direction of the resultant force. [5] (b) Determine the stresses in member B and member C assuming that they are both L- shaped brackets made from a plate of thickness T, as in figure Q3(b), where T = 10 mm, W= 200 mm and H 300 mm. =
Figure Q3(a) shows a gusset plate used to connect members of a truss. А 60 kN 30° 45° D B С 36 kN 50 KN 80 kN Figure Q3(a): Forces acting on gusset plate [10] (a) Draw a vector diagram to scale of the forces acting on the gusset plate in figure Q3(a), and hence determine the magnitude and direction of the resultant force. [5] (b) Determine the stresses in member B and member C assuming that they are both L- shaped brackets made from a plate of thickness T, as in figure Q3(b), where T = 10 mm, W= 200 mm and H 300 mm. =