Ar = ( h o 2 Ar = ( h o

Ir =

(bo

Ir =

t )( h o 2 12

2

(bo

2

t )( h o 12

t )(bo 2 t )(bo 2

t)

t ) 2 0,215 r 2

3

t)

Wr =

2 2 0,215 r 2

3

Wr =

ho 2 2

h 2 0,215 r 2  o  2

2 Ir ho 2 2 Ir ho t

Ar = ( h o 2

t ) 4 0,215 r 2

t

Ar = ( h o t

t

t )(bo 2

2

0,223 r

2 0,223 r  

Ir =

(bo

Ir =

(bo

t )(bo 2 2

2

t) t)

t )( h o 2 12

t)

t )( h o 12

t)

3

3

qpp q sc

= 1 kN/m2 = 3 kN/m2.

qpp+sc

= 4 kN/m2

d = 2,44 ⇒ qpp+sc, lin = 4*2,44 = 9,76 kN/m = 9,76 N/mm

L = 6,00 m ⇒ M=9,76*6.0002/8 = 43.920.000 N*mm ⇒ KD = 1,00 Ff,dis = 7,2 MPa Wr = M/Ff

3 is = 43.920.000/7,2 = 6.1000.000 mm

bo = 115 mm h

=

6 ∗ Wreq bo

=

6 ∗ 6.1000.000 11

= 564 mm

2