Download - Nota de Calcul
CALCUL STRUCTURI DIN METAL
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COD: STAS 10108/0-78 Calculul structurilor metalice.
TIP ANALIZA: Verificare element
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FAMILIE:
ELEMENT: 1 cececePUNCT: 1COORDONATA: x = 0.50 L = 1.50 m
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NCARCARI:
Caz ncarcare decisiv: 25 SLU/15=1*1.35 + 2*1.35 + 3*1.05 + 4*1.50 + 6*0.75 (1+2)*1.35+3*1.05+4*1.50+6*0.75
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MATERIAL
OTEL
R = 210.00 MPaRf = 126.00 MPaE = 210000.00 MPaG = 81000.00 MPa
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PARAMETRI SECTIUNE: TCAR 120x5
ht=12.0 cm
bf=12.0 cm Ay=11.440 cm2 Az=11.440 cm2 Ax=22.880 cm2
ti=0.5 cm Iy=502.600 cm4 Iz=502.600 cm4 It=775.400 cm4
t=0.5 cm Wely=83.767 cm3 Welz=83.767 cm3
Inima:h0/ti = 20.00(h0/ti)max = 168.94
Talpa:b'/t = 20.00(b'/t)max = 141.15
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FORTE INTERNE SI FACTORI
N = 9.37 kN My = -1.81 kN*m Mz = 1.43 kN*m
Mefy = -6.65 kN*m Mefz = -4.49 kN*m
Ty = 3.95 kNTz = 4.50 kN
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TENSIUNI N PUNCTE CARACTERISTICE ALE SECTIUNII
SigN = 4.10 MPa SigMy = -21.61 MPa SigMz = -17.11 MPa
Tay,max = 3.90 MPa Tauz_max = 4.44 MPa
Tauy,mid = 3.45 MPa Tauz,mid = 3.93 MPa
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PARAMETRI FLAMBAJ LATERAL:
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PARAMETRI FLAMBAJ:
Dupa axa Y: Dupa axa Z:
ly = 3.00 m Lamy = 46.68 lz = 3.00 m Lamz = 46.68
lfy = 2.19 m Fiy = 0.94 lfz = 2.19 m Fiz = 0.94
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FORMULE DE VERIFICARE:
Verificare sectiune
Inima: (h0/ti) / (h0/ti)max = 20.00/168.94 = 0.12 < 1.0; Talpa: (b'/t) / (b'/t)max = 20.00/141.15 = 0.14 < 1.0 [12,13] SECTIUNE SCURTA
(N/A + My/Wy + Mz/Wz)/(1.1*R) = 0.19 < 1.00 [8.1.3-(8.4)]
Tauy,mid/Rf = 0.03 < 1.00 [7.1.1-(7.3)]; Tauz,mid/Rf = 0.03 < 1.00 [7.1.1-(7.3)]
Verificare stabilitate element
Lamy = 46.68 < Lamy,max = 120.00 Lamz = 46.68 < Lamz,max = 120.00
[N/(Fi*A) + Mefy/(Fig*Wy) + Mefz/Wz]/R = 0.59 < 1.00 [8.2.3-(8.8)]
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Sectiune OK !!!