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ND<br />
NDE<br />
Nó “D” Forças Verticais (V) Forças Verticais (H)<br />
NDB<br />
ΣFV = 0 ΣFH = 0<br />
NDB-NDE.sen36,87°-NDF=0 -NDE.cos36,87°-NDC = 0<br />
6,75-(-22,5).sen36,87°-NDF=0 -NDE.cos36,87°-18 =0<br />
6,75+13,5-NDF=0 NDE = -18÷cos36,87°<br />
NDF = 20,25 KN NDE = -22,5 KN<br />
Nó “E” Forças Verticais (V) Forças Verticais (H)<br />
NEC<br />
22,5).cos36,87° = 0<br />
NDB<br />
NDF NDE NDF<br />
NED<br />
NEC NED<br />
VE<br />
ΣFV = 0 ΣFH = 0<br />
VE+NEC+NED.sen36,87° = 0 HE+NED.cos36,87° = 0<br />
20,25+(-6,75)+(-22,5).sen36,87° = 0 HE+(-<br />
20,25-6,75-13,5 = 0 HE = 18 KN Ok<br />
0 = 0<br />
Nó “F” Forças Verticais (V) Forças Verticais (H)<br />
ND<br />
NDE<br />
HE H<br />
VE<br />
NFD NFD<br />
VF<br />
HF<br />
VF<br />
ΣFV = 0 ΣFH = 0<br />
NFD-VF = 0 -HF = 0<br />
NED<br />
HE confirmada<br />
HF<br />
20,25-20,25 = 0 HF = 0 Ok<br />
35
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