7/17/2019 Momento de Inercia

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Areas Y A*Y  

Ala 4200 90 378000 -20

Viga 2800 40 112000 30

7000 490000

 Y'= 70 I

4200 160 672000 -47.2222222

5250 75 393750 37.7777778

9450 1065750

 Y'= 112.777778 I

I(1.7)/I(1.00) 4.38237705

ᵟ=Y'-Y 

7/17/2019 Momento de Inercia

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I

400 1680000 2916666.67

900 2520000

4200000 2916666.7

7116666.6667 cm4

2229.9382716 9365740.74 14329583.3

1427.1604938 7492592.59

16858333 14329583

31187916.692 cm4

ᵟ

2 A*ᵟ

2