prEN 1991-1-9

Eurocode 1 - Actions on structures – Part 1-9: Atmospheric Icing on Structures

General information

00.60 Close of review   May 8, 2017


CEN/TC 250 Structural Eurocodes

European Norm


Drafting a new Eurocode EN 1991-1-9 based on ISO 12494:2001 (within the scope of Mandate M/515).

The initiative is mainly motivated by the progressive awareness and findings showing the importance of actions on structures due to atmospheric icing, especially for some type of structures (e.g. masts, towers, antennas, cables/ropes etc.) and in particular, but not only, for the Northern European Countries. On the other hand given that an ISO Standard, 12494 : 2001 refers to this topic, it is considered appropriate
to use this standard as a base for an EN Eurocode, by "transforming" it accordingly into the Eurocode format and by introducing, where possible, more recent established, at an international and national level,research results. Some parts of the existing ISO standard are more text book like” so the new Eurocode should improve simplification. The main axes of the new Eurocode part will more or less follow the structure of ISO 12494 and could be summarized as follows:
(1) Nature and types of atmospheric icing
(2) Static and dynamic actions of icing on structures
(3) Factors affecting atmospheric icing
4) Ice classes – Glaze – Rime
(5) Methods of evaluation/measurement
(6) Wind actions on iced structures
(7) Combinations of actions, including atmospheric icing

Related legislation

Legislation related to this standard


Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec

Life cycle


prEN 1991-1-9
00.60 Close of review
May 8, 2017