Bulgarian Institute for Standardization
Standards – always a step ahead
Phone: +359 2 8174 523, +359 2 8174 504
E-mail: info@bds-bg.org
1797 Sofia, 13 "Lachezar Stanchev" Str., "Izgrev" Complex
ID number: 175079183, VAT number: BG175079183
Main menu

БДС EN 1991-1-4:2005

Eurocode 1: Actions on structures - Part 1-4: General actions - Wind actions

Oct 21, 2005
Mar 28, 2008

General information

90.93     Sep 30, 2008



European Standard


English   Bulgarian  

AC:2009-отменен; AC:2010; A1:2010



Language in which you want to receive the document


(1) EN 1991-1-4 gives guidance on the determination of natural wind actions for the structural design of building and civil engineering works for each of the loaded areas under consideration. This includes the whole structure or parts of the structure or elements attached to the structure, e. g. components, cladding units and their fixings, safety and noise barriers.
(2) This Part is applicable to:
- Buildings and civil engineering works with heights up to 200 m, see also (11).
- Bridges having no span greater than 200 m, provided that they satisfy the criteria for dynamic response, see (12) and 8.2.
(3) This part is intended to predict characteristic wind actions on land-based structures, their components and appendages.
(4) Certain aspects necessary to determine wind actions on a structure are dependent on the location and on the availability and quality of meteorological data, the type of terrain, etc. These need to be provided in the National Annex and Annex A, through National choice by notes in the text as indicated. Default values and methods are given in the main text, where the National Annex does not provide information.
(5) Annex A gives illustrations of the terrain categories and provides rules for the effects of orography including displacement height, roughness change, influence of landscape and influence of neighbouring structures.
(6) Annex B and C give alternative procedures for calculating the structural factor cscd.
(7) Annex D gives cscd factors for different types of structures.
(8) Annex E gives rules for vortex induced response and some guidance on other aeroelastic effects.
(9) Annex F gives dynamic characteristics of structures with linear behaviour
(10) This part does not give guidance on local thermal effects on the characteristic wind, e.g. strong arctic thermal surface inversion or funnelling or tornadoes.
(11) Guyed masts and lattice towers are treated in EN 1993-7-1 and lighting columns in EN 40
(12) This part

Directives and Regulations

When the standard is harmonized under a directive or regulation, the word Harmonized appear. When such an inscription does not appear, it means that the standard is related to / supporting the relevant directive or regulation.


Construction products


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


БДС ENV 1991-2-4:2002


БДС EN 1991-1-4:2005
90.93 Standard confirmed
Sep 30, 2008


prБДС EN 1991-1-4 rev:2022

Related project

Adopted from EN 1991-1-4:2005