1) Caracteristici sectiune:Cazuri de verificare:

ti (mm) 8hi (mm) 1200t1 (mm) 16

16

235

2) Dimensionare tronson inferior

Coef de pondereb= 0.4634308511 Dimensionare:d= 12.417144907 N coresp (KN) 1045.5r= -3.144780585 M max (KN) 2396.7s= -5.217918883

3) Coef de distributie a mat in sectiune:

β 1.9432913475

0.5388.6582695

400

91.493702125

200

4) Aleg b rigidizare si t rigidizare:Aleg :br 120tr 10Verific br/tr < 14 Ԑ 12

5) Arie sectiune tronson inferior :A= 37600

6) Moment de inertie

10658.338133

727.650133337) Raze de giratie:

iy 532.41566442iz 139.11289359

8) Moment de …

t2≥t1 (mm)

fy (N/mm² )

β₁ Ԑ (0.4; 0.8)

Aleg β₁ =b₁ necb₁ ef

b₂ nec

b₂ ef

Iy x 10 ⁶ x 10 ⁶Iz x 10 ⁶ x 10 ⁶

15.054149906

9) Verificarea de zveltete:10170

li= 10170ly = 2.5*li 25425

47.754042 λlt

73.1060920210) Verificarea de rezistenta:

Nrd (KN) 8836Mrd (KN) 3537.7252279

VERIFICAREA: 0.6401551102 < 1 se verifica <1nu se verifica >1

Ԑ=1 impus (se calculeaza daca e diferit)

φy 0.7048751001

φz 0.9447326406

φ lt 0.7331988894

λy barat 0.5085085933λz barat 0.7784697265λ lt barat 0.545204264

M2= 781.7M1= 1655.2

ψ (=M2/M1) 0.4722692122 conditie: ψapartine (-1,1)c 1.315912203 conditie: c <2.70

Iw 270831989.56 (tronson inferior) sauIr 2264533.3333E (N/mm²) 210000G (N/mm²) 81000

VERIFICARE DE ZVELTETE:Pt y 0.685432683797143 < SAU = 1Pt Z 0.816848154094037 < sau =1

Wy x 10 ⁶ x 10 ⁶

lz = l inferior (mm)

λ y < λ a=120

λ z < λ a=120

χ yχ z

χ lt

x 10 ⁶

VerificareCazuri de verificare: N (KN) 1522.3 Iz (tronson inferior)

M (KN) 1655.2

51.20013243

30.066257226 25.993041.1567042824

0.8382215283 Cmy=Cmlt 0.788908 conditie >/= 0.4

0.6756784473 Kyy 0.83838 < sau = 0.886197

0.8173697565 Kzy 0.981584 > sau = 0.976343

2.70832E+14