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NED<br />
NFE<br />
NFB<br />
NBA<br />
NEA.cos22,62° = 0<br />
130).cos22,62° = 0<br />
KN<br />
ΣFV = 0 ΣFH = 0<br />
NEB+NEA.sen22,62° = 0 NEF-NED-<br />
NEB+(-130).sen22,62° = 0 NEF-0-(-<br />
NEB = 50 KN NEF = -120<br />
Nó “F” Forças Verticais (V) Forças Verticais (H)<br />
NFC<br />
NEF<br />
NFB.cos39,81° = 0<br />
NFB.cos39,81° = 0<br />
ΣFV = 0 ΣFH = 0<br />
NFC+NFB.sen39,81° = 0 -NFE-HF-<br />
NFC+(-52).sen39,81° = 0 -(-120)-160-<br />
NFC = 33,3 KN NFB = -40÷cos39,81°<br />
NFB = -52 KN<br />
Nó “B” Forças Verticais (V) Forças Verticais (H)<br />
NBE<br />
HF<br />
NBC<br />
NBF<br />
NFB NFC<br />
NBC<br />
NBA NBE NBF<br />
ΣFV = 0 ΣFH = 0<br />
+NBC.sen22,62°-NBA.sen22,62°-NBE-NBF.sen39,81°=0 -<br />
NBA.cos22,62°+NBC.cos22,62°+NBF.cos39,81° = 0<br />
NED<br />
NFE<br />
NFB<br />
NBA<br />
HF<br />
NBC<br />
NBF<br />
39
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