Netherlands

According to Dutch National Annex NEN EN 1991-1-4/NA: 2006-12 Ontw.

Article

Commentary

4.1(1)

The value of vb.0 is taken according to the wind zone

vb.0(I)=29 m/s

vb.0 (II) =27 m/s

vb.0 (III) =24,5 m/s

 

4.2(1)P Note 1

Influence of the altitude is not considered in the Annex

 

4.2(1)P Notes 2 and 3

Using the default EN

 

4.2(1)P Note 5

 

Wind zone

K

n

I

0,2

0,5

II

0,234

0,5

III

0,281

0,5

 

4.3.1(1) Notes 1 and 2

For cr(z) see 4.3.2(1)

Orography factor co(z) inputted by the user as a constant value

 

4.3.2(1)

 

 

4.4(1) Note 2

Using the default EN

 

4.5(1) Note 1

Using the default EN

 

4.5(1) Note 2

Using the default EN