Figura

A _i

Gx_i

Gy_i

A _i . Gx_i

A _i . Gy_i

1

3900

30

72,5

117000

282750

2

4800

60

20

288000

96000

3

1950

80

61,667

156000

120250

4

1000

20

72,5

20000

72500

A=

9650

EGx=

150

EGy=

81,667

Sy=

541000

Sx=

426500

Gx =

56,062

Gy =

44,197

[L] = cm

07/04/2005

Figura

b

h

1

60

65

2

120

40

3

60

65

4

40

25

Figura

Ixx_i

Iyy_i

Ixy_i

1

21872500

4680000

8482500

2

2560000

23040000

5760000

3

7873125

12870000

9408750

4

5308333

533333

1450000

Ixx=

26.997.292

Iyy=

40.056.667

Ixy=

22.201.250

Ixg=

8.147.318

Iyg=

9.727.029

Ixyg=

-1.709.268

tg(2a) =

-2,1640253

a =

-32,599128

a =

57,400872

tg(b)=

0,71467527

b =

35,5524545

Del Fliess: Pág 205

tg(b) = Ixx - tg(u)*Ixy

Ixy - tg(u)*Iyy