CEN/TC 250/SC 1/WG 2 - Atmospheric icing of structures
Atmospheric icing of structures
General Information
Frequently Asked Questions
CEN/TC 250/SC 1/WG 2 is a Subcommittee within the European Committee for Standardization (CEN). It is named "Atmospheric icing of structures". This committee has published 1 standards.
CEN/TC 250/SC 1/WG 2 develops CEN standards in the area of Information technology. Currently, there are 1 published standards from this subcommittee.
The European Committee for Standardization (CEN) is a public standards organization that brings together the national standardization bodies of 34 European countries. CEN provides a platform for developing European Standards (ENs) and other technical documents in relation to various products, materials, services, and processes, supporting the European Single Market.
A Subcommittee (SC) in CEN operates under a Technical Committee and focuses on a specific subset of the TC's scope. Subcommittees develop standards and technical specifications in their specialized area, reporting to their parent Technical Committee. They may also have working groups for detailed technical work.
1.1 Scope of EN 1991-1-9
(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.
1.2 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.
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