3- The pin-jointed space frame shown in Figure 6 is assumed to have concentrated loads acting at point A. Determine the internal and direction of force in all members using the method of tension coefficients. ( E = 210 kN/mm3 and cross-sectional area in all members = 4,000 mm2).
0.6m
0.6M
.451Y
HOe
3M
Figure 6