Momenti Inerzia e Moduli Di Resistenza

January 4, 2024 | Author: Anonymous | Category: N/A
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Momenti di inerzia Ix e moduli di resistenza a flessione Wx di figure piane

y

y

4

l 12 3 l W x= 6 l v= 2

l

l

y

l L

v

v

l

l

y

3

v b

y

3

b ⋅h 6b2 h 2 2 2 b ⋅h W x= 2 2 6 b  h b⋅h v= 2 2  b h

y

v

x

y

3

b⋅h 36 2 b⋅h W x= 24 2 v= h 3

h

b

3

h

x

v=

x

5 3 4 h 144 15 3 W x= h 144 3 v= h 3

y

2

v

y

B

2

h  B 4 B bb  36 Bb 2 2 2 h B 4 B bb  W x= 12 B2b

5 3 4 h 144 5 3 3 W x= h 72 h v= 2

I x=

h

I x=

v

b

v

v

I x=

x

3

I x=

h

v

b

h

3

b⋅ H −h  12 3 3 b⋅ H −h  W x= 6H H v= 2

x

I x=

x

4

I x=

H h

v h

b

x

L

x

4

L −l 12  2  L4 −l 4 W x= 12L l v= 2

y

3

b⋅h I x= 12 2 b⋅h W x= 6 h v= 2

4

I x=

l

l

2 3 W x= l 12 l v= 2

y

y

L

4

l I x= 12

x

x

L l

v

x

4

L −l 12 4 4 L −l W x= 6L L v= 2 I x=

v

I x=

hb2B 3Bb

Momenti di Inerzia e Moduli di Resistenza a Flessione di figure piane

4

x

I x =0,055 h 3 W x =0,109 h v=

h 2

h

C. Napoli

y

y

4

⋅d 64 3 ⋅d W x= 32 d v= 2 I x=

4

v

x d

D

d

v

x

4

 D −d  64 4 4 D −d  W x = 32⋅D D v= 2 I x =

4

y

y

4

v

d

v=0,288 d

d

x

v

x

I x =0,07 d 3 W x =0,024 d

D

y 3

 3 b⋅h 64  2 W x = b⋅h 32 h v= 2

x

b

y

v

I x=

H h

h

v

y

B

x

b

v

v

h

h

h

H

H

x

b/2

b/2

b B

Momenti di Inerzia e Moduli di Resistenza a Flessione di figure piane

B

3

BH −bh 12 3 3 BH −bh W x= 6H H v= 2 I x=

x

H

v

3

b

3

⋅B⋅H −b⋅h  64 3 3 ⋅B⋅H −b⋅h  W x= I x= 32⋅H H v= 2 I x=

y

y x

B

4

I x =0,1098 R −r  3 3 0,238 R r  R− r − R− r Ix W x= v 3 3 R −r v=0,424 2 2 R −r

C. Napoli

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