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ND<br />
NDB<br />
NC<br />
NEC<br />
NED<br />
NC<br />
NAD = 225÷sen36,87° NAC = 100 KN<br />
NAC = 375 KN<br />
Nó “D” Forças Verticais (V) Forças Verticais (H)<br />
ND<br />
ΣFV = 0 ΣFH = 0<br />
NDA.sen36,87°+NDC = 0 -NDA.cos36,87°-NDB+NDE = 0<br />
375.sen36,87°+NDC = 0 -375.cos36,87°-(-400)+NDE = 0<br />
NDC = -225 KN -300+400+NDE = 0<br />
NDE = -100 KN<br />
Nó “C” Forças Verticais (V) Forças Verticais (H)<br />
15<br />
NDE<br />
NCE<br />
100+100 = 0<br />
ND ND<br />
ΣFV = 0 ΣFH = 0<br />
-150-NCD-NCE.sen36,87°=0 -NCA+NCE.cos36,87°=0<br />
-150-(-225)-NCE.sen36,87°=0 -100+125.cos36,87° = 0<br />
-150+225-NCE.sen36,87° = 0 -<br />
NCE = 75÷sen36,87° 0 = 0<br />
NCE = 125 KN<br />
Nó “E” Forças Verticais (V) Forças Verticais (H)<br />
75<br />
15<br />
NC NCE<br />
NEC<br />
75<br />
ND<br />
NDB<br />
NC<br />
NEC<br />
NED<br />
ΣFV = 0 ΣFH = 0<br />
NDE<br />
NCE<br />
23
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