ČSN EN 1991-1-9   (730035) Eurokód 1 - Zatížení konstrukcí - Část 1-9: Zatížení námrazou

Anotace textu normy ČSN EN 1991-1-9   (730035)

1) EN 1991-1-9 gives principles and rules to determine the values of loads due to atmospheric icing to be used for following types of structures:

- masts,

- towers,

- antennas and antenna structures,

- cables, stays, guy ropes and similar structures,

- rope ways (cable railways),

- structures for ski-lifts,

- buildings or parts of them exposed to potential icing,

- special types of structures, such as towers for transmission lines and wind turbines.

NOTE - Atmospheric icing on electrical overhead lines is covered by EN 50341-1.

2) EN 1991-1-9 specifies values for:

- dimensions and weight of accreted ice,

- shapes of accreted ice.

3) EN 1991-1-9 covers types of icing, ice loads acting on structures, and falling ice considerations.

NOTE - For wind actions on iced structures, see EN 1991-1-4.

Assumptions:

The assumptions given in EN 1990:2023, 1.2 apply.

EN 1991-1-9 is intended to be used with EN 1990 (all parts), the other parts of EN 1991 and EN 1992 (all parts) to EN 1999 (all parts) for the design of structures.