5 lb 0.75 in. 1 in. 20° -1.5 in. --1 in- 3 in.- 5 lb Prob. 6–82

(33 %) Q2: Determine the foree in members AB. AH, and BH of the loaded truss shown below hy the method of joints. 4 m 5 m 5m 5m 30 kN 60 kN 30 kN

Design an unequal angle section to serve as a tie member of 1.6 m length in a roof truss. It has to carry an axial load of 118 kN. The gusset plate is connected to the longer leg of the angle. Also design the fillet weld. Permissible stress in weld = 108 N/mm² Permissible stress in axial tension = 150N / m * m ^ 2 Thickness (t), sectional area (A), weight/m run (w), distance of centres of gravity along x-axis and y-axis. cx and cy maximum and minimum radius of gyration f max and r min are given for some angles for design.

6-82. A 5-lb force is applied to the handles of the vise grip. Determine the compressive force developed on the smooth bolt shank A at the jaws. 0.75 in. AAAAAAAA 20° -1.5 in.1 in. 3 in. 5 lb 5 lb

2. Calculate the internal forces in the bar GF and GD in a roof truss as shownbelow. For each bar, indicate if the internal force is tensile or compressive. Usethe section method (snittmetoden). Point A has simple support and D has rollersupport.