{"id":28062,"date":"2025-09-18T08:57:59","date_gmt":"2025-09-18T08:57:59","guid":{"rendered":"https:\/\/support.buildsoft.eu\/docs\/12build\/dans-le-coup\/dimensionnement-dune-poutre-continue\/conception-dune-poutre-en-acier\/"},"modified":"2026-07-13T09:39:23","modified_gmt":"2026-07-13T09:39:23","slug":"conception-dune-poutre-en-acier","status":"publish","type":"docs","link":"https:\/\/support.buildsoft.eu\/fr\/docs\/12build\/au-travail\/dimensionnement-dune-poutre-continue\/conception-dune-poutre-en-acier\/","title":{"rendered":"Conception d&rsquo;une poutre en acier"},"content":{"rendered":"\n<p style=\"font-size:16px\">Avant de commencer la conception, nous s\u00e9lectionnons la norme selon laquelle nous souhaitons effectuer les calculs :<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/09\/image-77.png\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/09\/image-77.png\" alt=\"\" class=\"wp-image-18119\" width=\"668\" height=\"113\"\/><\/a><\/figure><\/div>\n<p style=\"font-size:16px\">Les dimensions les plus \u00e9conomiques d&rsquo;une poutre en acier seront facilement d\u00e9termin\u00e9es par l&rsquo;ic\u00f4ne <img decoding=\"async\" loading=\"lazy\" width=\"28\" height=\"28\" class=\"wp-image-7380\" style=\"width: 28px;\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2022\/04\/KnpoStaal.png\" alt=\"\"\/>. La bo\u00eete de dialogue suivante appara\u00eet:<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/09\/image-79.png\"><img decoding=\"async\" loading=\"lazy\" width=\"948\" height=\"644\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/09\/image-79.png\" alt=\"\" class=\"wp-image-18122\"\/><\/a><\/figure><\/div>\n<p style=\"font-size:16px\">En appuyant sur le bouton <em>&lsquo;Analyse<\/em>&lsquo;, vous donnez \u00e0 1-2-Build l&rsquo;ordre de rechercher le profil IPE le plus optimal qui assure une r\u00e9sistance ad\u00e9quate par rapport aux charges appliqu\u00e9es (y compris son propre poids). De plus, le profil\u00e9 satisfait \u00e0 la limite de d\u00e9formation requise dans l&rsquo;\u00e9tat limite de service de votre choix. Pour cet exemple, un \u00e9tat limite de service combinaisons quasi permanentes a \u00e9t\u00e9 choisi. Apr\u00e8s plusieurs it\u00e9rations, 1\u20222\u2022Build vous pr\u00e9sentera un IPE240.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/09\/image-80.png\"><img decoding=\"async\" loading=\"lazy\" width=\"1071\" height=\"724\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/09\/image-80.png\" alt=\"\" class=\"wp-image-18123\"\/><\/a><\/figure><\/div>\n<p style=\"font-size:16px\">Si vous souhaitez une solution plus petite, cliquez \u00e0 nouveau sur l&rsquo;ic\u00f4ne <img decoding=\"async\" loading=\"lazy\" width=\"28\" height=\"28\" class=\"wp-image-7380\" style=\"width: 28px;\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2022\/04\/KnpoStaal.png\" alt=\"\"\/>. Dans la bo\u00eete de dialogue qui s&rsquo;affiche, ouvrez la liste des classes de profil disponibles et s\u00e9lectionnez la classe HEB.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/09\/image-81.png\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/09\/image-81.png\" alt=\"\" class=\"wp-image-18124\" width=\"329\" height=\"275\"\/><\/a><\/figure><\/div>\n<p style=\"font-size:16px\">1-2-Build vous proposera un HEB160.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/09\/image-82.png\"><img decoding=\"async\" loading=\"lazy\" width=\"1071\" height=\"724\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/09\/image-82.png\" alt=\"\" class=\"wp-image-18125\"\/><\/a><\/figure><\/div>\n<p style=\"font-size:16px\">La solution propos\u00e9e respecte pleinement les exigences fix\u00e9es par l&rsquo;Eurocode 3 en ce qui concerne<\/p>\n\n<ul>\n<li>la r\u00e9sistance des profil\u00e9s utilis\u00e9s<\/li>\n\n\n\n<li>la stabilit\u00e9 des barres soumises \u00e0 la pression et\/ou \u00e0 la flexion (stabilit\u00e9 au flambement et\/ou au d\u00e9versement lat\u00e9ral)<\/li>\n<\/ul>\n\n<p style=\"font-size:16px\">Les r\u00e9sultats relatifs \u00e0 la r\u00e9sistance et \u00e0 la stabilit\u00e9 sont document\u00e9s plus en d\u00e9tail \u00e0 l&rsquo;aide des ic\u00f4nes <img decoding=\"async\" class=\"wp-image-7479\" style=\"width: 30px;\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2022\/04\/KnpoWeerstand.png\" alt=\"\"\/> et <img decoding=\"async\" class=\"wp-image-7478\" style=\"width: 30px;\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2022\/04\/KnpoStabiliteit.png\" alt=\"\"\/>. Les graphiques suivants montrent que la r\u00e9sistance des sections et la stabilit\u00e9 des tiges sont inf\u00e9rieures \u00e0 100 % des valeurs autoris\u00e9es.<br\/>restent.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/09\/image-83.png\"><img decoding=\"async\" loading=\"lazy\" width=\"1071\" height=\"724\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/09\/image-83.png\" alt=\"\" class=\"wp-image-18127\"\/><\/a><\/figure><\/div><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/09\/image-84.png\"><img decoding=\"async\" loading=\"lazy\" width=\"1071\" height=\"724\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/09\/image-84.png\" alt=\"\" class=\"wp-image-18128\"\/><\/a><\/figure><\/div>\n<p>Double-cliquez sur l&rsquo;une des poutres pour voir les d\u00e9tails de la v\u00e9rification de l&rsquo;acier.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/09\/image-85.png\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/09\/image-85.png\" alt=\"\" class=\"wp-image-18129\" width=\"668\" height=\"381\"\/><\/a><\/figure><\/div>\n<p style=\"font-size:16px\">En outre, vous pouvez demander plus de r\u00e9sultats, en particulier les d\u00e9flexions de la poutre \u00e0 l&rsquo;\u00e9tat limite de service. Pour ce faire, s\u00e9lectionnez l&rsquo;ic\u00f4ne \u00ab <img decoding=\"async\" loading=\"lazy\" width=\"31\" height=\"31\" class=\"wp-image-18016\" style=\"width: 31px;\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/09\/Lesdeformationsb2.png\" alt=\"\"\/> \u00bb correspondant \u00e0 la combinaison de charges \u00ab<em>ELS QP<\/em>\u00bb afin d&rsquo;obtenir les r\u00e9sultats ci-dessous. La d\u00e9viation pr\u00e9vue pour le mod\u00e8le HEB160 propos\u00e9 est de 4 mm :<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/09\/image-86.png\"><img decoding=\"async\" loading=\"lazy\" width=\"1071\" height=\"724\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/09\/image-86.png\" alt=\"\" class=\"wp-image-18130\"\/><\/a><\/figure><\/div>","protected":false},"featured_media":0,"parent":18222,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"","doc_tag":[],"comment_count":0,"_links":{"self":[{"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/docs\/28062"}],"collection":[{"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/docs"}],"about":[{"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/types\/docs"}],"replies":[{"embeddable":true,"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/comments?post=28062"}],"version-history":[{"count":2,"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/docs\/28062\/revisions"}],"predecessor-version":[{"id":30477,"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/docs\/28062\/revisions\/30477"}],"up":[{"embeddable":true,"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/docs\/18222"}],"next":[{"title":"Conception d'une poutre en b\u00e9ton arm\u00e9","link":"https:\/\/support.buildsoft.eu\/fr\/docs\/12build\/au-travail\/dimensionnement-dune-poutre-continue\/conception-dune-poutre-en-beton-arme\/","href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/docs\/28060"}],"prev":[{"title":"Introduction des charges","link":"https:\/\/support.buildsoft.eu\/fr\/docs\/12build\/au-travail\/dimensionnement-dune-poutre-continue\/introduction-des-charges\/","href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/docs\/28058"}],"wp:attachment":[{"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/media?parent=28062"}],"wp:term":[{"taxonomy":"doc_tag","embeddable":true,"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/doc_tag?post=28062"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}