{"id":4878,"date":"2026-04-24T07:29:58","date_gmt":"2026-04-24T07:29:58","guid":{"rendered":"https:\/\/roadskyguardrail.com\/?p=4878"},"modified":"2026-04-24T07:43:16","modified_gmt":"2026-04-24T07:43:16","slug":"w-beam-guardrail-specifications-explained","status":"publish","type":"post","link":"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained","title":{"rendered":"Explication des sp\u00e9cifications des garde-corps \u00e0 poutre en W"},"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<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table des mati\u00e8res<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table des mati\u00e8res\"><span class=\"ez-toc-js-icon-con\"><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><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#What_is_a_W-Beam_Guardrail\" >Qu'est-ce qu'une glissi\u00e8re de s\u00e9curit\u00e9 \u00e0 poutre en W ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#Standard_W-Beam_Guardrail_Dimensions\" >Dimensions des garde-corps standard \u00e0 poutre en W<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#Common_Beam_Lengths\" >Longueurs courantes des faisceaux<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#Cross-Section_Dimensions\" >Dimensions de la section transversale<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#W-Beam_Guardrail_Thickness_Specifications\" >Sp\u00e9cifications relatives \u00e0 l'\u00e9paisseur des garde-corps \u00e0 poutrelles en W<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#Standard_Thickness_Options\" >\u00c9paisseur standard Options<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#Materials_Used_in_W-Beam_Guardrails\" >Mat\u00e9riaux utilis\u00e9s dans les garde-corps \u00e0 poutre en W<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#Common_Steel_Grades\" >Grades d'acier courants<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#Surface_Treatment_and_Corrosion_Protection\" >Traitement de surface et protection contre la corrosion<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#Hot-Dip_Galvanizing\" >Galvanisation \u00e0 chaud<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#Powder_Coating_Optional\" >Rev\u00eatement par poudre (en option)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#Major_International_Standards_for_W-Beam_Guardrails\" >Principales normes internationales pour les garde-corps \u00e0 poutre en W<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#1_North_America\" >1. Am\u00e9rique du Nord<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#2_Europe\" >2. L'Europe<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#3_Other_International_Standards\" >3. Autres normes internationales<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#Main_Components_of_a_W-Beam_Guardrail_System\" >Principaux \u00e9l\u00e9ments d'un syst\u00e8me de garde-corps \u00e0 poutre en W<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#Essential_Components\" >Composants essentiels<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#Typical_W-Beam_Guardrail_Post_Specifications\" >Sp\u00e9cifications typiques des poteaux de garde-corps \u00e0 poutre en W<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#Standard_Post_Lengths\" >Longueur standard des poteaux<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#W-Beam_vs_Thrie-Beam_Guardrail\" >Garde-corps \u00e0 poutre en W contre garde-corps \u00e0 trois poutrelles<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#W-Beam_Guardrail_Price\" >Prix des garde-corps \u00e0 poutre en W<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#Summary\" >R\u00e9sum\u00e9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\/#FAQs\" >FAQ<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n\n<p><strong><a href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam\" type=\"link\" id=\"https:\/\/roadskyguardrail.com\/w-beam\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">Garde-corps en W<\/a><\/strong> sont parmi les barri\u00e8res de s\u00e9curit\u00e9 routi\u00e8re les plus utilis\u00e9es au monde. Con\u00e7us pour rediriger les v\u00e9hicules errants, r\u00e9duire la gravit\u00e9 des accidents et am\u00e9liorer la s\u00e9curit\u00e9 le long des routes, les syst\u00e8mes de glissi\u00e8res de s\u00e9curit\u00e9 en W sont un choix standard pour les autoroutes, les ponts, les routes rurales, les parkings et les installations industrielles. Comprendre les sp\u00e9cifications des glissi\u00e8res de s\u00e9curit\u00e9 en W est essentiel pour les ing\u00e9nieurs, les entrepreneurs, les distributeurs et les ma\u00eetres d'ouvrage qui recherchent des solutions de s\u00e9curit\u00e9 routi\u00e8re conformes et fiables.<\/p>\n\n\n\n<p>Ce guide couvre les principales sp\u00e9cifications des glissi\u00e8res de s\u00e9curit\u00e9 en W, y compris les dimensions, les mat\u00e9riaux, l'\u00e9paisseur, les normes, les composants et les facteurs \u00e0 prendre en compte lors de la s\u00e9lection du syst\u00e8me appropri\u00e9 pour votre projet.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_a_W-Beam_Guardrail\"><\/span>Qu'est-ce qu'une glissi\u00e8re de s\u00e9curit\u00e9 \u00e0 poutre en W ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Une glissi\u00e8re de s\u00e9curit\u00e9 en W est une barri\u00e8re routi\u00e8re semi-rigide fabriqu\u00e9e en acier ondul\u00e9. Son profil en \u201cW\u201d distinctif - form\u00e9 par deux vagues - lui conf\u00e8re r\u00e9sistance et flexibilit\u00e9, ce qui lui permet d'absorber l'\u00e9nergie d'un impact tout en redirigeant les v\u00e9hicules vers la chauss\u00e9e.<\/p>\n\n\n\n<p>Par rapport aux barri\u00e8res rigides en b\u00e9ton, les glissi\u00e8res de s\u00e9curit\u00e9 en W offrent un \u00e9quilibre rentable entre l'absorption d'\u00e9nergie, la facilit\u00e9 d'installation et l'efficacit\u00e9 de l'entretien. Elles sont couramment install\u00e9es le long des :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Autoroutes et voies rapides<\/li>\n\n\n\n<li>Ponts et viaducs<\/li>\n\n\n\n<li>Routes de montagne et virages serr\u00e9s<\/li>\n\n\n\n<li>M\u00e9dianes et talus en bordure de route<\/li>\n\n\n\n<li>Parkings et zones industrielles<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/roadskyguardrail.com\/wp-content\/uploads\/2026\/04\/Standard-W-Beam-Guardrail-Dimensions.jpg\" alt=\"Dimensions des garde-corps standard \u00e0 poutre en W\" class=\"wp-image-4881\" srcset=\"https:\/\/roadskyguardrail.com\/wp-content\/uploads\/2026\/04\/Standard-W-Beam-Guardrail-Dimensions.jpg 600w, https:\/\/roadskyguardrail.com\/wp-content\/uploads\/2026\/04\/Standard-W-Beam-Guardrail-Dimensions-400x267.jpg 400w, https:\/\/roadskyguardrail.com\/wp-content\/uploads\/2026\/04\/Standard-W-Beam-Guardrail-Dimensions-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Standard_W-Beam_Guardrail_Dimensions\"><\/span>Dimensions des garde-corps standard \u00e0 poutre en W<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Les garde-corps en W sont fabriqu\u00e9s dans des dimensions standardis\u00e9es afin d'assurer la compatibilit\u00e9 avec les poteaux, les entretoises et les sections terminales.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Beam_Lengths\"><\/span>Longueurs courantes des faisceaux<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>4 320 mm (13 ft 6 in)<\/strong> - Longueur effective standard utilis\u00e9e dans de nombreux march\u00e9s internationaux<\/li>\n\n\n\n<li><strong>4 000 mm<\/strong> - Commun dans des projets r\u00e9gionaux sp\u00e9cifiques<\/li>\n\n\n\n<li><strong>3 810 mm (12 ft 6 in)<\/strong> - Fr\u00e9quemment utilis\u00e9 en Am\u00e9rique du Nord<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cross-Section_Dimensions\"><\/span>Dimensions de la section transversale<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Largeur du faisceau<\/strong>: 310 mm \u00e0 312 mm<\/li>\n\n\n\n<li><strong>Profondeur de la vague<\/strong>: 80 mm \u00e0 85 mm<\/li>\n\n\n\n<li><strong>Largeur de la bride<\/strong>: Environ 55 mm<\/li>\n<\/ul>\n\n\n\n<p>Ces dimensions assurent l'int\u00e9grit\u00e9 structurelle n\u00e9cessaire pour r\u00e9sister aux impacts des v\u00e9hicules tout en maintenant une d\u00e9flexion contr\u00f4l\u00e9e.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"W-Beam_Guardrail_Thickness_Specifications\"><\/span>Sp\u00e9cifications relatives \u00e0 l'\u00e9paisseur des garde-corps \u00e0 poutrelles en W<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>L'\u00e9paisseur des glissi\u00e8res de s\u00e9curit\u00e9 a une incidence directe sur la r\u00e9sistance aux chocs, la dur\u00e9e de vie et la conformit\u00e9 aux exigences du projet.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Standard_Thickness_Options\"><\/span>\u00c9paisseur standard Options<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>2,67 mm (calibre 12)<\/li>\n\n\n\n<li>2,70 mm<\/li>\n\n\n\n<li>3,00 mm<\/li>\n\n\n\n<li>3,43 mm (calibre 10)<\/li>\n\n\n\n<li>4,00 mm (pour les applications lourdes)<\/li>\n<\/ul>\n\n\n\n<p>Les \u00e9paisseurs les plus couramment sp\u00e9cifi\u00e9es sont les suivantes <strong>2,67 mm<\/strong> et <strong>3,43 mm<\/strong>. Les gabarits plus lourds offrent une meilleure durabilit\u00e9 et sont souvent choisis pour les routes \u00e0 grande vitesse, les ponts et les endroits \u00e0 haut risque.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/roadskyguardrail.com\/wp-content\/uploads\/2026\/04\/Materials-Used-in-W-Beam-Guardrails.jpg\" alt=\"Mat\u00e9riaux utilis\u00e9s dans les garde-corps \u00e0 poutre en W\" class=\"wp-image-4883\" srcset=\"https:\/\/roadskyguardrail.com\/wp-content\/uploads\/2026\/04\/Materials-Used-in-W-Beam-Guardrails.jpg 600w, https:\/\/roadskyguardrail.com\/wp-content\/uploads\/2026\/04\/Materials-Used-in-W-Beam-Guardrails-400x267.jpg 400w, https:\/\/roadskyguardrail.com\/wp-content\/uploads\/2026\/04\/Materials-Used-in-W-Beam-Guardrails-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Materials_Used_in_W-Beam_Guardrails\"><\/span>Mat\u00e9riaux utilis\u00e9s dans les garde-corps \u00e0 poutre en W<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Les glissi\u00e8res de s\u00e9curit\u00e9 \u00e0 poutre en W sont g\u00e9n\u00e9ralement fabriqu\u00e9es en acier \u00e0 haute r\u00e9sistance afin de garantir leur durabilit\u00e9, leur ductilit\u00e9 et leur r\u00e9sistance aux chocs.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Steel_Grades\"><\/span>Grades d'acier courants<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Acier Q235<\/li>\n\n\n\n<li>Acier Q345<\/li>\n\n\n\n<li>Acier ASTM A36<\/li>\n\n\n\n<li>Acier ASTM A572 Grade 50<\/li>\n\n\n\n<li>Acier S275JR \/ S355JR<\/li>\n<\/ul>\n\n\n\n<p>Le choix des mat\u00e9riaux d\u00e9pend des normes locales, des sp\u00e9cifications du projet et des conditions environnementales.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Surface_Treatment_and_Corrosion_Protection\"><\/span>Traitement de surface et protection contre la corrosion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Pour garantir des performances \u00e0 long terme dans les environnements ext\u00e9rieurs, les glissi\u00e8res de s\u00e9curit\u00e9 \u00e0 poutre en W doivent \u00eatre recouvertes d'un rev\u00eatement r\u00e9sistant \u00e0 la corrosion.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Hot-Dip_Galvanizing\"><\/span>Galvanisation \u00e0 chaud<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>La galvanisation \u00e0 chaud est la finition protectrice la plus courante.<\/p>\n\n\n\n<p>Norme de rev\u00eatement : ASTM A123, AASHTO M180, EN ISO 1461<\/p>\n\n\n\n<p>Poids typique du rev\u00eatement de zinc :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>550 g\/m\u00b2<\/li>\n\n\n\n<li>610 g\/m\u00b2<\/li>\n\n\n\n<li>900 g\/m\u00b2<\/li>\n\n\n\n<li>1 100 g\/m\u00b2<\/li>\n<\/ul>\n\n\n\n<p><strong><a href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam\" type=\"link\" id=\"https:\/\/roadskyguardrail.com\/w-beam\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">Garde-corps en W galvanis\u00e9s<\/a><\/strong> offrent une excellente r\u00e9sistance \u00e0 la rouille, \u00e0 l'humidit\u00e9, au brouillard salin et aux intemp\u00e9ries.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Powder_Coating_Optional\"><\/span>Rev\u00eatement par poudre (en option)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Pour une meilleure esth\u00e9tique ou une protection suppl\u00e9mentaire, un rev\u00eatement en poudre peut \u00eatre appliqu\u00e9 sur l'acier galvanis\u00e9. Les couleurs les plus courantes sont les suivantes :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Vert<\/li>\n\n\n\n<li>Gris<\/li>\n\n\n\n<li>Marron<\/li>\n\n\n\n<li>Couleurs de projet personnalis\u00e9es<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Major_International_Standards_for_W-Beam_Guardrails\"><\/span>Principales normes internationales pour les garde-corps \u00e0 poutre en W<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Le respect des normes reconnues est essentiel pour la s\u00e9curit\u00e9 et l'approbation du projet.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_North_America\"><\/span>1. Am\u00e9rique du Nord<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>AASHTO M180<\/strong> - Sp\u00e9cification standard pour les poutres en t\u00f4le d'acier ondul\u00e9e pour <strong><a href=\"https:\/\/roadskyguardrail.com\/fr\/\" type=\"link\" id=\"https:\/\/roadskyguardrail.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Garde-corps d'autoroute<\/a><\/strong><\/li>\n\n\n\n<li><strong>MASH<\/strong> - Manuel d'\u00e9valuation du mat\u00e9riel de s\u00e9curit\u00e9<\/li>\n\n\n\n<li><strong>ASTM A123<\/strong> - Rev\u00eatement de zinc standard<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Europe\"><\/span>2. L'Europe<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>EN 1317 - Exigences de performance des dispositifs de retenue routiers<\/li>\n\n\n\n<li>EN ISO 1461 - Rev\u00eatements galvanis\u00e9s \u00e0 chaud<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Other_International_Standards\"><\/span>3. Autres normes internationales<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>AS\/NZS 3845 (Australie\/Nouvelle-Z\u00e9lande)<\/li>\n\n\n\n<li>JT\/T 281 (Chine)<\/li>\n\n\n\n<li>RAL-RG 620 (Allemagne)<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/roadskyguardrail.com\/wp-content\/uploads\/2026\/04\/Main-Components-of-a-W-Beam-Guardrail-System.jpg\" alt=\"Principaux \u00e9l\u00e9ments d&#039;un syst\u00e8me de garde-corps \u00e0 poutre en W\" class=\"wp-image-4884\" srcset=\"https:\/\/roadskyguardrail.com\/wp-content\/uploads\/2026\/04\/Main-Components-of-a-W-Beam-Guardrail-System.jpg 600w, https:\/\/roadskyguardrail.com\/wp-content\/uploads\/2026\/04\/Main-Components-of-a-W-Beam-Guardrail-System-400x267.jpg 400w, https:\/\/roadskyguardrail.com\/wp-content\/uploads\/2026\/04\/Main-Components-of-a-W-Beam-Guardrail-System-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Main_Components_of_a_W-Beam_Guardrail_System\"><\/span>Principaux \u00e9l\u00e9ments d'un syst\u00e8me de garde-corps \u00e0 poutre en W<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Une installation compl\u00e8te de glissi\u00e8res de s\u00e9curit\u00e9 \u00e0 poutre en W comprend plusieurs composants qui fonctionnent ensemble comme un syst\u00e8me de s\u00e9curit\u00e9 int\u00e9gr\u00e9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Essential_Components\"><\/span>Composants essentiels<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Panneaux de rails en W<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/roadskyguardrail.com\/fr\/guardrail-post\" type=\"link\" id=\"https:\/\/roadskyguardrail.com\/guardrail-post\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">Poteaux en acier<\/a><\/strong> (<strong><a href=\"https:\/\/roadskyguardrail.com\/fr\/c-post\" type=\"link\" id=\"https:\/\/roadskyguardrail.com\/c-post\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">Poste C<\/a><\/strong>, <strong><a href=\"https:\/\/roadskyguardrail.com\/fr\/u-post\" type=\"link\" id=\"https:\/\/roadskyguardrail.com\/u-post\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">Poteau en U<\/a><\/strong>, <strong><a href=\"https:\/\/roadskyguardrail.com\/fr\/sigma-post\" type=\"link\" id=\"https:\/\/roadskyguardrail.com\/sigma-post\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">Poste sigma<\/a><\/strong>, ou <strong><a href=\"https:\/\/roadskyguardrail.com\/fr\/h-post\" type=\"link\" id=\"https:\/\/roadskyguardrail.com\/h-post\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">Poteau en I<\/a><\/strong>)<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/roadskyguardrail.com\/fr\/guardrail-spacer\" type=\"link\" id=\"https:\/\/roadskyguardrail.com\/guardrail-spacer\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">Blocs d'\u00e9cartement<\/a><\/strong> (acier ou composite)<\/li>\n\n\n\n<li>Casquettes de poste<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/roadskyguardrail.com\/fr\/guardrail-bolts-nuts\" type=\"link\" id=\"https:\/\/roadskyguardrail.com\/guardrail-bolts-nuts\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">Boulons et \u00e9crous de connexion<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"https:\/\/roadskyguardrail.com\/fr\/guardrail-end-terminal\" type=\"link\" id=\"https:\/\/roadskyguardrail.com\/guardrail-end-terminal\" target=\"_blank\" rel=\"noreferrer noopener\">Extr\u00e9mit\u00e9s des terminaux<\/a><\/strong><\/li>\n\n\n\n<li>Sections de transition<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/roadskyguardrail.com\/fr\/guardrail-reflector\" type=\"link\" id=\"https:\/\/roadskyguardrail.com\/guardrail-reflector\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">R\u00e9flecteurs<\/a><\/strong> (facultatif)<\/li>\n<\/ul>\n\n\n\n<p>Chaque composant doit r\u00e9pondre aux m\u00eames normes que la poutre elle-m\u00eame.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Typical_W-Beam_Guardrail_Post_Specifications\"><\/span>Sp\u00e9cifications typiques des poteaux de garde-corps \u00e0 poutre en W<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Les tailles de poteaux les plus courantes sont les suivantes<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>C-Post : <\/strong>150 \u00d7 75 \u00d7 25 \u00d7 5 mm<\/li>\n\n\n\n<li><strong>U-Post :<\/strong> 150 \u00d7 80 \u00d7 6 mm<\/li>\n\n\n\n<li><strong>Sigma Post :<\/strong> 100 \u00d7 55 \u00d7 5 mm<\/li>\n\n\n\n<li><strong>Poteau en I :<\/strong> W150 ou \u00e9quivalent<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Standard_Post_Lengths\"><\/span>Longueur standard des poteaux<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1 830 mm<\/li>\n\n\n\n<li>1 900 mm<\/li>\n\n\n\n<li>2 000 mm<\/li>\n\n\n\n<li>Longueurs personnalis\u00e9es disponibles<\/li>\n<\/ul>\n\n\n\n<p>L'espacement des poteaux est typiquement :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>1,905 m (6 ft 3 in)<\/strong> - Espacement standard<\/li>\n\n\n\n<li><strong>2.0 m<\/strong> - Fr\u00e9quent dans de nombreux projets internationaux<\/li>\n\n\n\n<li><strong>4.0 m<\/strong> - Applications sp\u00e9ciales<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"W-Beam_vs_Thrie-Beam_Guardrail\"><\/span>Garde-corps \u00e0 poutre en W contre garde-corps \u00e0 trois poutrelles<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Les glissi\u00e8res de s\u00e9curit\u00e9 en W sont les plus courantes, <strong><a href=\"https:\/\/roadskyguardrail.com\/fr\/thrie-beam\" type=\"link\" id=\"https:\/\/roadskyguardrail.com\/thrie-beam\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">Glissi\u00e8res de s\u00e9curit\u00e9 \u00e0 trois poutres<\/a><\/strong> offrent une r\u00e9sistance suppl\u00e9mentaire.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Fonctionnalit\u00e9<\/th><th class=\"has-text-align-center\" data-align=\"center\">Poutre en W<\/th><th class=\"has-text-align-center\" data-align=\"center\">Faisceau triangulaire<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Nombre d'ondes<\/td><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">3<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Largeur<\/td><td class=\"has-text-align-center\" data-align=\"center\">~312 mm<\/td><td class=\"has-text-align-center\" data-align=\"center\">~506 mm<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">La force<\/td><td class=\"has-text-align-center\" data-align=\"center\">Standard<\/td><td class=\"has-text-align-center\" data-align=\"center\">Plus \u00e9lev\u00e9<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Les syst\u00e8mes \u00e0 trois poutres sont souvent choisis lorsqu'un plus grand confinement ou une d\u00e9flexion r\u00e9duite sont n\u00e9cessaires.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"W-Beam_Guardrail_Price\"><\/span>Prix des garde-corps \u00e0 poutre en W<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Les prix des glissi\u00e8res de s\u00e9curit\u00e9 en W varient g\u00e9n\u00e9ralement entre 15 et 50 USD par m\u00e8tre pour un syst\u00e8me complet, en fonction de l'\u00e9paisseur de l'acier, des exigences de galvanisation, des normes de conformit\u00e9 et des accessoires inclus. Les commandes en gros et les conditions d'exportation FOB Chine peuvent r\u00e9duire le co\u00fbt unitaire, tandis que les \u00e9paisseurs plus importantes et les sp\u00e9cifications plus \u00e9lev\u00e9es en mati\u00e8re de rev\u00eatement de zinc augmenteront le prix total.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Summary\"><\/span>R\u00e9sum\u00e9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Les glissi\u00e8res de s\u00e9curit\u00e9 \u00e0 poutre en W jouent un r\u00f4le essentiel dans les syst\u00e8mes modernes de s\u00e9curit\u00e9 routi\u00e8re en r\u00e9duisant efficacement la gravit\u00e9 des accidents et en prot\u00e9geant \u00e0 la fois les conducteurs et l'infrastructure routi\u00e8re. Gr\u00e2ce \u00e0 leurs dimensions normalis\u00e9es, \u00e0 leur construction en acier durable et \u00e0 leurs sp\u00e9cifications internationalement reconnues, elles restent l'une des solutions de s\u00e9curit\u00e9 routi\u00e8re les plus fiables et les plus largement utilis\u00e9es dans le monde.<\/p>\n\n\n\n<p>Enfin, nous esp\u00e9rons que vous avez maintenant une bonne compr\u00e9hension des sp\u00e9cifications des glissi\u00e8res de s\u00e9curit\u00e9 \u00e0 poutre en W et que vous savez comment les dimensions et les normes appropri\u00e9es jouent un r\u00f4le cl\u00e9 dans la s\u00e9curit\u00e9 des routes. Si vous recherchez un fournisseur fiable de produits de s\u00e9curit\u00e9 routi\u00e8re pour votre projet, n'h\u00e9sitez pas \u00e0 nous contacter \u00e0 l'adresse suivante <strong><a href=\"https:\/\/roadskyguardrail.com\/fr\/contact\" type=\"link\" id=\"https:\/\/roadskyguardrail.com\/contact\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">nous contacter<\/a><\/strong> pour plus de d\u00e9tails et un devis tr\u00e8s comp\u00e9titif.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"FAQs\"><\/span>FAQ<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1777013338076\"><strong class=\"schema-faq-question\">1. Quelle est la dur\u00e9e de vie des garde-corps galvanis\u00e9s \u00e0 poutre en W ?<\/strong> <p class=\"schema-faq-answer\">Avec une galvanisation \u00e0 chaud appropri\u00e9e, les garde-corps en W peuvent durer de 20 \u00e0 30 ans en fonction des conditions environnementales.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1777013427057\"><strong class=\"schema-faq-question\">2. Quelle est la diff\u00e9rence entre les garde-corps \u00e0 poutre en W et les garde-corps \u00e0 trois poutrelles ?<\/strong> <p class=\"schema-faq-answer\">La poutre W a deux ondes et est utilis\u00e9e pour la protection standard des routes, tandis que la poutre Thrie a trois ondes et offre une plus grande r\u00e9sistance pour les ponts et les zones \u00e0 haut risque.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1777013461624\"><strong class=\"schema-faq-question\">3. Comment le prix des garde-corps \u00e0 poutre en W est-il calcul\u00e9 ?<\/strong> <p class=\"schema-faq-answer\">Le prix d\u00e9pend de l'\u00e9paisseur de l'acier, du type de rev\u00eatement, des composants du syst\u00e8me, de la quantit\u00e9 command\u00e9e et des frais d'exp\u00e9dition, g\u00e9n\u00e9ralement indiqu\u00e9s par m\u00e8tre ou par jeu.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>W-beam guardrails are among the most widely used highway safety barriers in the world. Designed to redirect errant vehicles, reduce crash severity, and improve roadside safety, W-beam guardrail systems are a standard choice for highways, bridges, rural roads, parking areas, and industrial facilities. Understanding W-beam guardrail specifications is essential for engineers, contractors, distributors, and project owners seeking compliant and reliable roadway safety solutions. This guide covers the key specifications of W-beam guardrails, including dimensions, materials, thickness, standards, components, and factors to consider when selecting the right system for your project. What is a W-Beam Guardrail? A W-beam guardrail is a semi-rigid roadside barrier made from corrugated steel. Its distinctive &#8220;W&#8221; profile\u2014formed by two waves\u2014provides strength and flexibility, allowing it to absorb impact energy while redirecting vehicles back onto the roadway. Compared with rigid concrete barriers, W-beam guardrails offer a cost-effective balance of energy absorption, ease of installation, and maintenance efficiency. They are commonly installed along: Standard W-Beam Guardrail Dimensions W-beam &#8230;<\/p>","protected":false},"author":1,"featured_media":4881,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"class_list":["post-4878","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>W-Beam Guardrail Specifications Explained - Roadsky<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"W-Beam Guardrail Specifications Explained - Roadsky\" \/>\n<meta property=\"og:description\" content=\"W-beam guardrails are among the most widely used highway safety barriers in the world. Designed to redirect errant vehicles, reduce crash severity, and improve roadside safety, W-beam guardrail systems are a standard choice for highways, bridges, rural roads, parking areas, and industrial facilities. Understanding W-beam guardrail specifications is essential for engineers, contractors, distributors, and project owners seeking compliant and reliable roadway safety solutions. This guide covers the key specifications of W-beam guardrails, including dimensions, materials, thickness, standards, components, and factors to consider when selecting the right system for your project. What is a W-Beam Guardrail? A W-beam guardrail is a semi-rigid roadside barrier made from corrugated steel. Its distinctive &#8220;W&#8221; profile\u2014formed by two waves\u2014provides strength and flexibility, allowing it to absorb impact energy while redirecting vehicles back onto the roadway. Compared with rigid concrete barriers, W-beam guardrails offer a cost-effective balance of energy absorption, ease of installation, and maintenance efficiency. They are commonly installed along: Standard W-Beam Guardrail Dimensions W-beam ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/roadskyguardrail.com\/fr\/w-beam-guardrail-specifications-explained\" \/>\n<meta property=\"og:site_name\" content=\"Nanjing Roadsky Traffic Facility Co.,Ltd (Roadsky Corporation)\" \/>\n<meta property=\"article:published_time\" content=\"2026-04-24T07:29:58+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-24T07:43:16+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/roadskyguardrail.com\/wp-content\/uploads\/2026\/04\/Standard-W-Beam-Guardrail-Dimensions.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"600\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/roadskyguardrail.com\\\/w-beam-guardrail-specifications-explained#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/roadskyguardrail.com\\\/w-beam-guardrail-specifications-explained\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\\\/\\\/roadskyguardrail.com\\\/#\\\/schema\\\/person\\\/16221aef5d23da298e3c2de708adbfa1\"},\"headline\":\"W-Beam Guardrail Specifications Explained\",\"datePublished\":\"2026-04-24T07:29:58+00:00\",\"dateModified\":\"2026-04-24T07:43:16+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/roadskyguardrail.com\\\/w-beam-guardrail-specifications-explained\"},\"wordCount\":914,\"image\":{\"@id\":\"https:\\\/\\\/roadskyguardrail.com\\\/w-beam-guardrail-specifications-explained#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/roadskyguardrail.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/Standard-W-Beam-Guardrail-Dimensions.jpg\",\"articleSection\":[\"Knowledge\"],\"inLanguage\":\"fr-FR\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/roadskyguardrail.com\\\/w-beam-guardrail-specifications-explained\",\"url\":\"https:\\\/\\\/roadskyguardrail.com\\\/w-beam-guardrail-specifications-explained\",\"name\":\"W-Beam Guardrail Specifications Explained - 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Designed to redirect errant vehicles, reduce crash severity, and improve roadside safety, W-beam guardrail systems are a standard choice for highways, bridges, rural roads, parking areas, and industrial facilities. Understanding W-beam guardrail specifications is essential for engineers, contractors, distributors, and project owners seeking compliant and reliable roadway safety solutions. This guide covers the key specifications of W-beam guardrails, including dimensions, materials, thickness, standards, components, and factors to consider when selecting the right system for your project. What is a W-Beam Guardrail? A W-beam guardrail is a semi-rigid roadside barrier made from corrugated steel. Its distinctive &#8220;W&#8221; profile\u2014formed by two waves\u2014provides strength and flexibility, allowing it to absorb impact energy while redirecting vehicles back onto the roadway. 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