Kopņu aprēķins

Pārbaude.
∑Fy = N6-7 + N6-9*sin18,43+N6-5*sin18,43=0
142,57-54,67-88,1=0
-0,2≈0

∑Fx = -N6-4+N6-8-N5-6*cos18,43+N6-9*cos18,43=0
-736,2+835,8+164,06-264,1=0
-0,44≈0

∑Fy = -N1-3*sinα-N3-2+N3-5*sinα-N3-4*sinα-P=0
∑Fy =156,7-20-122,84+34,04-48=0
-0,1≈0

∑Fx = -N1-3*cosα+N3-4*cosα+N3-5*cosα=0
∑Fx =940,43-207,29-737,25=0
-1,11≈0…