{"id":942,"date":"2026-05-13T08:06:42","date_gmt":"2026-05-13T06:06:42","guid":{"rendered":"https:\/\/icab.eu\/pro\/?page_id=942"},"modified":"2026-05-13T08:15:44","modified_gmt":"2026-05-13T06:15:44","slug":"action-vent","status":"publish","type":"page","link":"https:\/\/icab.eu\/pro\/action-vent\/","title":{"rendered":"Action du vent"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Sommaire<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a05f10f7a736\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a05f10f7a736\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/icab.eu\/pro\/action-vent\/#NF_EN_1991-1-4NA_mars_2008_Actions_generales_%E2%80%93_Actions_du_Vent\" >NF EN 1991-1-4\/NA mars 2008 \nActions g\u00e9n\u00e9rales &#8211; Actions du Vent<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/icab.eu\/pro\/action-vent\/#Regions_de_vent_Eurocode_1_France_%E2%80%93_EN1991-1-4_NA_AFNOR_Pr_NF_P06-114-1NA_mars_2008\" >R\u00e9gions de vent Eurocode 1 France &#8211; EN1991-1-4 NA (AFNOR Pr NF P06-114-1\/NA mars 2008)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/icab.eu\/pro\/action-vent\/#Rugosite_du_terrain\" >Rugosit\u00e9 du terrain<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"NF_EN_1991-1-4NA_mars_2008_Actions_generales_%E2%80%93_Actions_du_Vent\"><\/span>NF EN 1991-1-4\/NA mars 2008<br \/>\nActions g\u00e9n\u00e9rales &#8211; Actions du Vent<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>Annexe nationale \u00e0 la norme europ\u00e9enne EN1991-1-4 avril 2005 (classement AFNOR P06-114-1 novembre 2005)<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Regions_de_vent_Eurocode_1_France_%E2%80%93_EN1991-1-4_NA_AFNOR_Pr_NF_P06-114-1NA_mars_2008\"><\/span>R\u00e9gions de vent Eurocode 1 France &#8211; EN1991-1-4 NA (AFNOR Pr NF P06-114-1\/NA mars 2008)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table>\n<tbody>\n<tr>\n<td>La <a href=\"http:\/\/www.icab.fr\/guide\/calc\/index.php?goto=CLIMAT\">pression dynamique<\/a> du vent est \u00e9tablie \u00e0 partir:<\/p>\n<ul>\n<li>V<sub>b,0<\/sub> <strong>valeur de base de la vitesse de r\u00e9f\u00e9rence<\/strong> en fonction des r\u00e9gions climatiques de vent d\u00e9finies dans le document d&rsquo;application nationale en France pour l&rsquo;Eurocode 1 partie 1-4;<br \/>\nNB: la carte \u00a0<a href=\"http:\/\/www.icab.fr\/guide\/nv65\/vent.html\">NV65:2009-vent<\/a> est identique pour la France m\u00e9tropolitaine \u00e0 celle de l&rsquo;Eurocode EN1991-1-4 NA:2008)<\/li>\n<li>C<sub>e<\/sub>(z) <strong>coefficient d&rsquo;exposition<\/strong> en fonction de la <a href=\"https:\/\/www.icab.eu\/guide\/eurocode\/en1991-1-4\/index.htm#rugosite\">rugosit\u00e9 de terrain<\/a> et de la hauteur z par rapport au sol<\/li>\n<li>C<sub>o<\/sub>(z) coefficient d&rsquo;orographie (C<sub>o<\/sub>&gt;1 sur les collines, montagnes, falaises)<\/li>\n<li>de la pr\u00e9sence d&rsquo;obstacles ou constructions avoisinantes de grande hauteur<\/li>\n<li>C<sub>s<\/sub>C<sub>d<\/sub> coefficient structural qui d\u00e9pend de la forme de la structure et de son comportement dynamique<\/li>\n<li>de r\u00e9ductions \u00e9ventuelles C<sub>season<\/sub>.C<sub>dir<\/sub> en fonction de la saison \u00a0et de la direction du vent<\/li>\n<\/ul>\n<p>Compl\u00e9ments d&rsquo;information:<\/p>\n<ul>\n<li>formulaire de <a title=\"calcul des pressions de vent\" href=\"http:\/\/www.icab.fr\/guide\/calc\/index.php?goto=CLIMAT\">calcul des pressions de vent selon Eurocode 1<\/a><\/li>\n<li>Carte indicative des vitesses de vent en <a href=\"https:\/\/www.icab.eu\/guide\/eurocode\/en1991-1-4\/index.htm#europe\">Europe<\/a><\/li>\n<li><i>D\u00e9termination du canton et du d\u00e9partement d&rsquo;une commune en France: <a href=\"http:\/\/www.annuaire-mairie.fr\/\" target=\"_blank\" rel=\"noopener\">http:\/\/www.annuaire-mairie.fr\/<\/a><\/i><\/li>\n<\/ul>\n<p><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/www.icab.eu\/guide\/eurocode\/en1991-1-4\/en1991-1-4_france.jpg\" width=\"813\" height=\"789\" border=\"0\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Les valeurs de base de la vitesse de r\u00e9f\u00e9rence (V<sub>b,0<\/sub> m\/s) sont:<\/p>\n<ul>\n<li>r\u00e9gion 1: 22 m\/s<\/li>\n<li>r\u00e9gion 2: 24<\/li>\n<li>r\u00e9gion 3: 26<\/li>\n<li>r\u00e9gion 4: 28<\/li>\n<li>Obsol\u00e8te: Guadeloupe: 36, Guyane: 17,\u00a0Martinique: 32,\u00a0R\u00e9union: 34<br \/>\nNB: Pour les DOM-TOM, consulter les<strong> <a href=\"https:\/\/icab.eu\/pro\/vent-cyclonique-ultramarin\/\" rel=\"bookmark\">Vents cycloniques ultramarins<\/a><\/strong><\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/www.icab.eu\/guide\/eurocode\/en1991-1-4\/ec1_vent_france_departements.jpg\" width=\"800\" height=\"1128\" border=\"0\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.icab.eu\/guide\/eurocode\/en1991-1-4\/ec1_vent_france_canton1.jpg\" width=\"800\" height=\"1066\" border=\"0\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.icab.eu\/guide\/eurocode\/en1991-1-4\/ec1_vent_france_canton2.jpg\" width=\"800\" height=\"1102\" border=\"0\" \/><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Rugosite_du_terrain\"><\/span><a name=\"rugosite\"><\/a>Rugosit\u00e9 du terrain<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Les param\u00e8tres associ\u00e9s \u00e0 la rugosit\u00e9 sont<\/p>\n<ul>\n<li>Z0 longueur de la rugosit\u00e9<\/li>\n<li>Zmin hauteur minimale en dessous de laquelle le coefficient d&rsquo;exposision Ce est constant: Ce(z)&gt;Ce(Zmin)<\/li>\n<\/ul>\n<p>Le document d&rsquo;application nationale en <b>France<\/b> EN1991-1-4 NA:2008 d\u00e9finit le coefficient d&rsquo;exposition \u00e0 partir des cat\u00e9gories de terrain.<\/p>\n<table border=\"1\">\n<tbody>\n<tr>\n<td><b>cat\u00e9gorie de terrain en France<\/b><\/td>\n<td>Z0<br \/>\n[m]<\/td>\n<td>Zmin<br \/>\n[m]<\/td>\n<\/tr>\n<tr>\n<td>0 Mer ou zone c\u00f4ti\u00e8re expos\u00e9e aux vents de mer: lacs et plans d&rsquo;eau parcourus par le vent sur une distance d&rsquo;au moins 5km<\/td>\n<td>0.005<\/td>\n<td>1<\/td>\n<\/tr>\n<tr>\n<td>II rase campagne avec ou non quelques obstacles isol\u00e9s (arbres, b\u00e2timents, etc) s\u00e9par\u00e9s les uns des autres de plus de 40 fois leur hauteur<\/td>\n<td>0.05<\/td>\n<td>2<\/td>\n<\/tr>\n<tr>\n<td>IIIa campagne avec haies; vignobles; bocage; habitat dispers\u00e9<\/td>\n<td>0.2<\/td>\n<td>5<\/td>\n<\/tr>\n<tr>\n<td>IIIb zones urbanis\u00e9e ou industrielles; bocage dense; vergers<\/td>\n<td>0.5<\/td>\n<td>9<\/td>\n<\/tr>\n<tr>\n<td>IV zones urbaines don&rsquo;t moins 15% de la surface sont recouverts de b\u00e2timents dont la hauteur moyenne est sup\u00e9rieure \u00e0 15m; for\u00eats<\/td>\n<td>1<\/td>\n<td>15<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><i>NB: la cat\u00e9gorie III Europe est interm\u00e9diaire entres les cat\u00e9gories IIIa et IIIb France.<br \/>\nLes cat\u00e9gories 0 et IV Europe sont plus s\u00e9v\u00e8res que les cat\u00e9gories 0 et IV France. La cat\u00e9gorie I n&rsquo;est pas d\u00e9finie en France.<\/i><\/p>\n<p><i>Par ailleurs, la masse volumique de l&rsquo;air d\u00e9fini en France est 1.225kg\/m3 (clause E.1.3.3); la valeur recommand\u00e9e par d\u00e9faut dans la norme europ\u00e9enne est 1.25kg\/m3 (section 4.5).<\/i><\/p>\n<p>Le document EN1991-1-4:2005 d\u00e9finit \u00e0 titre indicatif en <b>Europe<\/b> les cat\u00e9gories et param\u00e8tres de terrain (les documents d&rsquo;application nationale peuvent d\u00e9finir des param\u00e8tres diff\u00e9rents)<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.icab.eu\/guide\/eurocode\/en1991-1-4\/en1991-1-4_wind_europe_map.jpg\" width=\"657\" height=\"902\" border=\"0\" \/><\/p>\n<p>Source: <a href=\"https:\/\/www.icab.eu\/guide\/eurocode\/eurocodes_state_use.pdf\">Etat d&rsquo;application des Eurocodes<\/a>.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>NF EN 1991-1-4\/NA mars 2008 Actions g\u00e9n\u00e9rales &#8211; Actions du Vent Annexe nationale \u00e0 la norme europ\u00e9enne EN1991-1-4 avril 2005 (classement AFNOR P06-114-1 novembre 2005) R\u00e9gions de vent Eurocode 1 France &#8211; EN1991-1-4 NA (AFNOR Pr NF P06-114-1\/NA mars 2008) La pression dynamique du vent est \u00e9tablie \u00e0 partir: Vb,0 valeur de base de la [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"class_list":["post-942","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/icab.eu\/pro\/wp-json\/wp\/v2\/pages\/942","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/icab.eu\/pro\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/icab.eu\/pro\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/icab.eu\/pro\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/icab.eu\/pro\/wp-json\/wp\/v2\/comments?post=942"}],"version-history":[{"count":6,"href":"https:\/\/icab.eu\/pro\/wp-json\/wp\/v2\/pages\/942\/revisions"}],"predecessor-version":[{"id":950,"href":"https:\/\/icab.eu\/pro\/wp-json\/wp\/v2\/pages\/942\/revisions\/950"}],"wp:attachment":[{"href":"https:\/\/icab.eu\/pro\/wp-json\/wp\/v2\/media?parent=942"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}