{"id":24902,"date":"2026-09-01T13:37:23","date_gmt":"2026-09-01T11:37:23","guid":{"rendered":"https:\/\/incoperfil.com\/?post_type=guia-tecnica&#038;p=24902"},"modified":"2026-09-17T11:22:02","modified_gmt":"2026-09-17T09:22:02","slug":"20-plancher-collaborant-integre-dans-une-structure-metallique","status":"publish","type":"guia-tecnica","link":"https:\/\/incoperfil.com\/fr\/guia-tecnica\/20-plancher-collaborant-integre-dans-une-structure-metallique\/","title":{"rendered":"20.Plancher collaborant int\u00e9gr\u00e9 dans une structure m\u00e9tallique"},"content":{"rendered":"<p data-start=\"198\" data-end=\"575\">Le plancher collaborant int\u00e9gr\u00e9 dans une structure m\u00e9tallique consiste \u00e0 disposer la dalle mixte \u00e0 l\u2019int\u00e9rieur de la hauteur des poutres m\u00e9talliques, de mani\u00e8re \u00e0 ce qu\u2019une partie de l\u2019\u00e9paisseur du plancher soit int\u00e9gr\u00e9e \u00e0 la structure porteuse. Cette solution permet d\u2019optimiser la hauteur libre utile du b\u00e2timent, tout en maintenant les performances structurelles du syst\u00e8me.<\/p>\n<p data-start=\"577\" data-end=\"951\">Pendant la <a class=\"decorated-link\" href=\"https:\/\/incoperfil.com\/fr\/guia-tecnica\/6-phases-du-plancher-collaborant-coffrage-et-phase-mixte\/\" target=\"_new\" rel=\"noopener\" data-start=\"588\" data-end=\"689\">phase de coffrage<\/a>, la t\u00f4le collaborante agit comme un \u00e9l\u00e9ment r\u00e9sistant, supportant le poids du b\u00e9ton frais ainsi que les charges d\u2019ex\u00e9cution. Une fois le b\u00e9ton durci, l\u2019ensemble acier-b\u00e9ton fonctionne comme une dalle mixte conform\u00e9ment au mod\u00e8le de calcul d\u00e9fini dans le projet.<\/p>\n<h2 data-section-id=\"1lda2l8\" data-start=\"953\" data-end=\"996\">Types de planchers collaborants int\u00e9gr\u00e9s<\/h2>\n<p data-start=\"998\" data-end=\"1041\">Il existe deux configurations principales :<\/p>\n<h3 data-section-id=\"13glxq4\" data-start=\"1043\" data-end=\"1080\">1. Plancher partiellement int\u00e9gr\u00e9<\/h3>\n<p data-start=\"1082\" data-end=\"1431\">Dans cette configuration, la couche de compression et les <a class=\"decorated-link\" href=\"https:\/\/incoperfil.com\/fr\/guia-tecnica\/14-types-darmatures-dans-le-plancher-collaborant\/\" target=\"_new\" rel=\"noopener\" data-start=\"1140\" data-end=\"1248\">armatures de moments n\u00e9gatifs<\/a> restent continues au-dessus des poutres. En phase mixte, un comportement continu du plancher peut \u00eatre pris en compte, ce qui am\u00e9liore la rigidit\u00e9 globale et r\u00e9duit les d\u00e9formations.<\/p>\n<h3 data-section-id=\"1nmx8di\" data-start=\"1433\" data-end=\"1467\">2. Plancher totalement int\u00e9gr\u00e9<\/h3>\n<p data-start=\"1469\" data-end=\"1761\">La couche de compression est interrompue par les poutres m\u00e9talliques, le plancher se comportant comme une dalle simplement appuy\u00e9e en phase mixte. Cette solution maximise la hauteur libre, bien qu\u2019elle pr\u00e9sente un comportement structurel moins efficace que la solution partiellement int\u00e9gr\u00e9e.<\/p>\n<p data-start=\"1763\" data-end=\"1935\">Dans les deux cas, pendant la phase de coffrage, la t\u00f4le est interrompue au droit des poutres. Le calepinage habituel correspond donc \u00e0 des t\u00f4les couvrant une seule trav\u00e9e.<\/p>\n<h2 data-section-id=\"15w3b16\" data-start=\"1937\" data-end=\"1965\">Crit\u00e8res de mise en \u0153uvre<\/h2>\n<p data-start=\"1967\" data-end=\"2097\">Afin de garantir le bon comportement structurel et la faisabilit\u00e9 constructive, les aspects suivants doivent \u00eatre pris en compte :<\/p>\n<h3 data-section-id=\"5p6k5a\" data-start=\"2099\" data-end=\"2143\">1. \u00c9paisseur de la couche de compression<\/h3>\n<p data-start=\"2145\" data-end=\"2247\">Dans les solutions partiellement int\u00e9gr\u00e9es, il convient de garantir une \u00e9paisseur suffisante afin de :<\/p>\n<ul data-start=\"2249\" data-end=\"2369\">\n<li data-section-id=\"1v9q6xl\" data-start=\"2249\" data-end=\"2309\">garantir la continuit\u00e9 des armatures de moments n\u00e9gatifs ;<\/li>\n<li data-section-id=\"1fwgu60\" data-start=\"2310\" data-end=\"2369\">respecter l\u2019enrobage minimal exig\u00e9 par la r\u00e9glementation.<\/li>\n<\/ul>\n<p><\/p>\n<p data-start=\"2371\" data-end=\"2473\">L\u2019\u00e9paisseur n\u00e9cessaire d\u00e9pendra du type de treillis soud\u00e9 et du diam\u00e8tre des armatures mises en place.<\/p>\n<h3 data-section-id=\"1sf3yv5\" data-start=\"2475\" data-end=\"2510\">2. Espace libre pour le montage<\/h3>\n<p data-start=\"2512\" data-end=\"2783\">Un espace libre suffisant doit \u00eatre pr\u00e9vu pour permettre la mise en place et la fixation des t\u00f4les entre les poutres, y compris l\u2019acc\u00e8s des outils. Il est g\u00e9n\u00e9ralement recommand\u00e9 de pr\u00e9voir une marge verticale minimale afin de faciliter l\u2019installation sans interf\u00e9rences.<\/p>\n<h3 data-section-id=\"t4b38p\" data-start=\"2785\" data-end=\"2829\">3. Appui minimal selon la r\u00e9glementation<\/h3>\n<p data-start=\"2831\" data-end=\"3213\">Conform\u00e9ment \u00e0 la norme UNE-EN 1994-1-1 (article 9.2.3), il convient de garantir l\u2019<a class=\"decorated-link\" href=\"https:\/\/incoperfil.com\/fr\/guia-tecnica\/18-appuis-du-plancher-collaborant-sur-la-structure\/\" target=\"_new\" rel=\"noopener\" data-start=\"2914\" data-end=\"2994\">appui minimal<\/a> de la t\u00f4le et de la section de b\u00e9ton. Cet aspect est particuli\u00e8rement important dans les planchers int\u00e9gr\u00e9s, car la longueur de la t\u00f4le est conditionn\u00e9e par l\u2019espace disponible pour son introduction entre les profil\u00e9s.<\/p>\n<p data-start=\"3215\" data-end=\"3367\">Si l\u2019appui s\u2019av\u00e8re insuffisant, des \u00e9l\u00e9ments auxiliaires (plats ou corni\u00e8res raidis) peuvent \u00eatre utilis\u00e9s afin de garantir la longueur d\u2019appui requise.<\/p>\n<h3 data-section-id=\"1gnzjya\" data-start=\"3369\" data-end=\"3397\">4. Complexit\u00e9 et montage<\/h3>\n<p data-start=\"3399\" data-end=\"3645\">La mise en \u0153uvre de planchers int\u00e9gr\u00e9s exige une planification pr\u00e9cise, car la mise en place des t\u00f4les entre les poutres augmente la complexit\u00e9 du montage par rapport \u00e0 une solution conventionnelle avec appui sur la partie sup\u00e9rieure des poutres.<\/p>\n<h2 data-section-id=\"evnem\" data-start=\"3647\" data-end=\"3683\">Profil\u00e9s collaborants compatibles<\/h2>\n<p data-start=\"3685\" data-end=\"4213\">Les profil\u00e9s <a class=\"decorated-link\" href=\"https:\/\/incoperfil.com\/fr\/profils\/inco-70-4-collaborant\/\" target=\"_new\" rel=\"noopener\" data-start=\"3698\" data-end=\"3781\"><strong data-start=\"3699\" data-end=\"3724\">INCO 70.4 Collaborant<\/strong><\/a>, <a class=\"decorated-link\" href=\"https:\/\/incoperfil.com\/fr\/profils\/inco-100-3-collaborant\/\" target=\"_new\" rel=\"noopener\" data-start=\"3783\" data-end=\"3868\"><strong data-start=\"3784\" data-end=\"3810\">INCO 100.3 Collaborant<\/strong><\/a> et <a class=\"decorated-link\" href=\"https:\/\/incoperfil.com\/fr\/profils\/inco-100-3-r-collaborant\/\" target=\"_new\" rel=\"noopener\" data-start=\"3872\" data-end=\"3961\"><strong data-start=\"3873\" data-end=\"3901\">INCO 100.3 R Collaborant<\/strong><\/a> permettent de s\u2019adapter \u00e0 diff\u00e9rentes configurations de port\u00e9e, d\u2019\u00e9paisseur et d\u2019exigences en mati\u00e8re de r\u00e9sistance au feu dans les solutions int\u00e9gr\u00e9es, toujours sous r\u00e9serve d\u2019une v\u00e9rification structurelle conform\u00e9ment \u00e0 la r\u00e9glementation en vigueur.<\/p>\n<p data-start=\"4215\" data-end=\"4353\">Tous les mod\u00e8les sont fabriqu\u00e9s en acier galvanis\u00e9 ou en zinc-magn\u00e9sium conform\u00e9ment \u00e0 la norme UNE-EN 1090-4 et disposent du marquage CE.<\/p>\n<h2 data-section-id=\"8dtpi\" data-start=\"4355\" data-end=\"4368\">Conclusion<\/h2>\n<p data-start=\"4370\" data-end=\"4744\">Le plancher collaborant int\u00e9gr\u00e9 dans une structure m\u00e9tallique constitue une solution efficace pour optimiser la hauteur libre entre les niveaux. Sa d\u00e9finition correcte n\u00e9cessite de coordonner le mod\u00e8le structurel, les appuis et l\u2019ex\u00e9cution sur chantier, en garantissant \u00e0 la fois la stabilit\u00e9 pendant la phase de coffrage et le comportement r\u00e9sistant pendant la phase mixte.<\/p>\n<h2 data-section-id=\"l59mfp\" data-start=\"4746\" data-end=\"4778\">Manuel technique d\u2019Incoperfil<\/h2>\n<p data-start=\"4780\" data-end=\"5139\">Pour la d\u00e9finition compl\u00e8te du syst\u00e8me, les crit\u00e8res de conception, les bases de calcul, les tableaux de r\u00e9sistance, les d\u00e9tails constructifs et les proc\u00e9dures de mise en \u0153uvre, consultez le <a class=\"decorated-link\" href=\"https:\/\/incoperfil.com\/fr\/documentation\/\" target=\"_new\" rel=\"noopener\" data-start=\"4971\" data-end=\"5052\">Manuel technique du plancher collaborant<\/a> d\u2019Incoperfil, disponible apr\u00e8s inscription dans la rubrique Documentation du site web.<\/p>\n<hr data-start=\"5141\" data-end=\"5144\" \/>\n<p data-start=\"5146\" data-end=\"5187\"><strong data-start=\"5146\" data-end=\"5187\">Derni\u00e8re mise \u00e0 jour : septembre 2026<\/strong><\/p>\n<p data-start=\"5189\" data-end=\"5421\" data-is-last-node=\"\" data-is-only-node=\"\">\u00a9 Incoperfil. Tous droits r\u00e9serv\u00e9s.<br data-start=\"5224\" data-end=\"5227\" \/>Le contenu technique de cet article fait partie du Manuel technique du plancher collaborant et de la documentation enregistr\u00e9e par Incoperfil aupr\u00e8s de ColorIURIS (Acte n\u00b0 1-INCOPERFIL-12.2025).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le plancher collaborant int\u00e9gr\u00e9 permet d\u2019int\u00e9grer partiellement ou totalement la dalle mixte dans la hauteur des poutres, en r\u00e9duisant l\u2019\u00e9paisseur structurelle totale et en augmentant la hauteur libre entre les niveaux, \u00e0 condition que la solution soit dimensionn\u00e9e conform\u00e9ment au sch\u00e9ma de r\u00e9sistance pr\u00e9vu.<\/p>\n","protected":false},"author":2,"featured_media":14116,"menu_order":21,"template":"","meta":{"_acf_changed":false},"categories":[1327],"tags":[],"class_list":["post-24902","guia-tecnica","type-guia-tecnica","status-publish","has-post-thumbnail","hentry","category-guides-techniques-pour-plancher-collaborant"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - 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