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Nó “1” Forças Verticais (V) Forças Verticais (H)<br />
N15<br />
N15+N16.sen45° = 0<br />
HA+N12+N16.cos45° = 0<br />
2,83).cos45° = 0<br />
ΣFV = 0 ΣFH = 0<br />
2+N16.sen45° = 0 8+N12+(-<br />
N16 = -2÷sen45° N12+8-2 = 0<br />
N16 = -2,83 t N12 = - 6 t<br />
Nó “6” Forças Verticais (V) Forças Verticais (H)<br />
ΣFV = 0 ΣFH = 0<br />
-2+N65.sen26,57°-N61.sen45°-N62-N67.sen26,57°=0 -N65.cos26,57°-<br />
N61.cos45°+N67.cos26,57°=0<br />
-2+8,94.sen26,57°-(-2,83).sen45°-N62-6,7.sen26,57°=0 -8,94.cos26,57°-(-<br />
2,83).cos45°+N67.cos26,57°=0<br />
6÷cos26,57°<br />
-2+4+2-3-N62 = 0 -8+2+N67.cos26,57° = 0<br />
N62 = 1 t N67 =<br />
N67 = 6,7 t<br />
Nó “2” Forças Verticais (V) Forças Verticais (H)<br />
0<br />
N16<br />
HA HA<br />
N12<br />
N65<br />
N61<br />
N21<br />
2<br />
N62<br />
N26<br />
N67<br />
N27<br />
N23<br />
2,23).cos26,57° = 0<br />
N15 N16<br />
N65<br />
2<br />
N61 N62 N67<br />
N26 N27<br />
N65<br />
N61<br />
N21<br />
N16<br />
N12<br />
N67<br />
N27<br />
N23<br />
ΣFV = 0 ΣFH = 0<br />
N26+N27.sen26,57° = 0 -N21+N23+N27.cos26,57° =<br />
1+N27.sen26,57° = 0 -(-6)+N23+(-<br />
15
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