Explain with a sketch, and without calculation, what type of load bar AJ is exposed to (pressure or tension). Indicate any “zero bars” in the truss and show one of them why it is a zero bar.
Figure 1. Trusses Figure 1. shows a truss composed of poles. It is stored in fixed bearing A and fixed bearing B. At the nodes N, P and R, forces act as shown in the figure. All joints are torque and friction free. Explain with a sketch, and without calculation, what type of load bar […]