{"id":2323,"date":"2026-04-27T13:04:12","date_gmt":"2026-04-27T13:04:12","guid":{"rendered":"https:\/\/protasoftware.com\/fr\/wiki\/types-d-appuis\/"},"modified":"2026-04-27T13:04:12","modified_gmt":"2026-04-27T13:04:12","slug":"types-d-appuis","status":"publish","type":"wiki","link":"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/types-d-appuis\/","title":{"rendered":"Types d’appuis"},"content":{"rendered":"
\n \n<\/div>\n\n\n\n
\n

<\/p>\n

\n Types d’appuis <\/span><\/span><\/span>
\n \n <\/div>\n<\/td>\n
\n

Chacun des six degr\u00e9s de libert\u00e9 (DOF) au n\u0153ud inf\u00e9rieur des poteaux peut \u00eatre bloqu\u00e9 ou libre. <\/span><\/span><\/span>Chaque DOF peut aussi recevoir un ressort de torsion ou un ressort axial ; l’utilisateur d\u00e9termine la valeur de ces constantes de ressort.<\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n
Pour cr\u00e9er des Types d’appuis \u00e0 assigner au n\u0153ud inf\u00e9rieur d’un poteau :<\/span><\/span><\/span>
\n \n<\/div>\n
    \n
  1. \n
    \n S\u00e9lectionnez l’option \u00ab <\/span><\/span>
    \n Types d’appuis \u00bb <\/span><\/span><\/i>
    \n dans l’onglet \u00ab <\/span><\/span>
    \n Mod\u00e9lisation<\/span><\/span><\/i>
    \n \u00bb.<\/span><\/span>
    \n \n <\/div>\n<\/li>\n
  2. \n
    \n Le formulaire \u00ab <\/span><\/span>
    \n Types d’appuis<\/span><\/span><\/i>
    \n \u00bb s’affiche. Le Type d’appui \u00ab <\/span><\/span>
    \n D\u00e9faut<\/span><\/span><\/i>
    \n \u00bb dans la liste correspond \u00e0 un encastrement complet sur chacun des six DOF. Dans ce cas, tous les poteaux et voiles au niveau S<\/i><\/span><\/span>
    \n T:01<\/span><\/span><\/i>
    \n  auront des appuis encastr\u00e9s, tandis que les autres DOF inf\u00e9rieurs des poteaux et voiles sup\u00e9rieurs resteront totalement libres.<\/span><\/span>
    \n \n <\/div>\n<\/li>\n
  3. \n
    \n Pour cr\u00e9er une condition d’appui autre que \u00ab <\/span><\/span>
    \n D\u00e9faut<\/span><\/span><\/i>
    \n \u00bb, cliquez sur le bouton \u00ab <\/span><\/span>
    \n Ajouter<\/span><\/span><\/i>
    \n \u00bb sur le m\u00eame formulaire. Une nouvelle cat\u00e9gorie d’appui avec tous les DOF bloqu\u00e9s s’ajoute en fin de liste.<\/span><\/span>
    \n \n <\/div>\n<\/li>\n
  4. \n
    \n Les six degr\u00e9s de libert\u00e9 regroupent les composantes suivantes :<\/span><\/span>
    \n \n <\/div>\n<\/li>\n
      \n
    1. \n
      \n X : d\u00e9placement selon l’axe global x.<\/span><\/span>
      \n \n <\/div>\n<\/li>\n
    2. \n
      \n Y : d\u00e9placement selon l’axe global y. <\/span><\/span>
      \n \n <\/div>\n<\/li>\n
    3. \n
      \n Z : d\u00e9placement selon l’axe global z. <\/span><\/span>
      \n \n <\/div>\n<\/li>\n
    4. \n
      \n Rotation X<\/span><\/span>
      \n \n <\/div>\n<\/li>\n
    5. \n
      \n Rotation Y<\/span><\/span>
      \n \n <\/div>\n<\/li>\n
    6. \n
      \n Rotation Z<\/span>
      <\/p>\n

      <\/span>Une case coch\u00e9e pr\u00e8s d’un DOF signifie que ce DOF est bloqu\u00e9. Si la case est d\u00e9coch\u00e9e, le champ \u00ab <\/span><\/span>
      \n Constante de ressort<\/span><\/span><\/i>
      \n \u00bb s’active. Vous pouvez saisir une constante de ressort coh\u00e9rente avec le syst\u00e8me d’unit\u00e9s en cours, ou la laisser \u00e0 z\u00e9ro pour lib\u00e9rer totalement le DOF. <\/span><\/span>\n <\/div>\n<\/li>\n<\/ol>\n

    7. \n
      \n L’utilisateur peut aussi cliquer sur l’ic\u00f4ne de la section 
      \n \u00ab Appuis rapides \u00bb <\/span>
      \n pour d\u00e9finir rapidement le type d’appui, par exemple \u00ab Encastr\u00e9 \u00bb<\/span>
      \n
      \n , \u00ab Rotule \u00bb\"\" ou \u00ab Appui simple \u00bb\"\" pour les directions X et Y.<\/span>
      \n \n <\/div>\n<\/li>\n
    8. \n
      \n Fermez la fen\u00eatre \u00ab <\/span>Type d’appui\u00bb<\/span><\/i> en cliquant sur le bouton \u00abOK\u00bb une fois le nombre ad\u00e9quat de types d’appuis cr\u00e9\u00e9.<\/span><\/span>\n <\/div>\n<\/li>\n<\/ol>\n
      \n \"\"Pour les b\u00e2timents dont les poteaux se terminent \u00e0 des niveaux de sous-sol diff\u00e9rents, cr\u00e9ez simplement un type d’appui encastr\u00e9 autre que \u00ab <\/span>D\u00e9faut<\/span><\/i>\u00bb. Assignez ensuite ce Type d’appui aux poteaux concern\u00e9s au niveau le plus bas, comme d\u00e9crit ci-dessus.<\/span><\/span>
      \n \n<\/div>\n
      \n \"\"Cette option permet aussi d’obtenir des solutions de type interaction sol-structure. Les constantes de ressort, \u00e9troitement li\u00e9es aux param\u00e8tres du sol, doivent toutefois \u00eatre choisies avec soin. Une valeur erron\u00e9e pour la constante de ressort axial affecte l’ensemble des efforts et moments de la superstructure.<\/span><\/span>
      \n \n<\/div>\n

      Appui rotule
      <\/h1>\n
      \n Il existe deux m\u00e9thodes pour d\u00e9finir une condition d’appui de poteau en rotule. Les deux donnent toutefois des r\u00e9sultats diff\u00e9rents ; l’utilisateur doit donc choisir la m\u00e9thode adapt\u00e9e \u00e0 son \u00e9l\u00e9ment. 
      \n \n<\/div>\n
        \n
      1. D\u00e9finir les Types d’appuis en condition Rotule et les appliquer aux propri\u00e9t\u00e9s du poteau.<\/li>\n<\/ol>\n
        \n
        \n
        \n \"\"<\/p>\n
        \n L’excentricit\u00e9 de la section par rapport au centre sera prise en compte et calcul\u00e9e (distance x charge axiale = moment).\n <\/div>\n

        <\/span>\n <\/div>\n<\/p><\/div>\n<\/blockquote>\n

          \n
        1. Laisser les types d’appui sur \u00ab Par d\u00e9faut \u00bb, mais r\u00e9gler le type de rotule sur \u00ab Rotule en bas \u00bb dans les propri\u00e9t\u00e9s du poteau.<\/li>\n<\/ol>\n
          \n
          \n
          \n \"\"<\/p>\n
          \n Le bas du poteau aura un moment nul, quelle que soit l’excentricit\u00e9 de la section.\n <\/div>\n

          <\/span>\n <\/div>\n

          \n \n <\/div>\n
          \n <\/div>\n<\/p><\/div>\n<\/blockquote>\n
          \n \n<\/div>\n","protected":false},"excerpt":{"rendered":"

          Types d’appuis  Chacun des six degr\u00e9s de libert\u00e9 (DOF) au n\u0153ud inf\u00e9rieur des poteaux peut \u00eatre bloqu\u00e9 ou libre. Chaque DOF peut aussi recevoir un ressort…<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"template":"","meta":{"_whitepaper_youtube_videos":"","_whitepaper_youtube_url":"","_whitepaper_youtube_thumbnail":"","footnotes":""},"categories":[48],"whitepaper_topic":[],"whitepaper_product":[],"whitepaper_type":[],"class_list":["post-2323","wiki","type-wiki","status-publish","hentry","category-structural-modelling"],"yoast_head":"\nTypes d'appuis dans ProtaStructure<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez les types d'appuis disponibles dans ProtaStructure : fixes, articul\u00e9s, \u00e0 rouleau et \u00e0 ressort, pour mod\u00e9liser les conditions aux limites.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/types-d-appuis\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Prota Software\" \/>\n<meta property=\"og:description\" content=\"D\u00e9couvrez les types d'appuis disponibles dans ProtaStructure : fixes, articul\u00e9s, \u00e0 rouleau et \u00e0 ressort, pour mod\u00e9liser les conditions aux limites.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/types-d-appuis\/\" \/>\n<meta property=\"og:site_name\" content=\"Prota Software\" \/>\n<meta property=\"og:image\" content=\"https:\/\/protasoftware.com\/wp-content\/uploads\/2026\/09\/hc-6a136f7aed54.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Prota Software\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/protasoftware.com\\\/fr\\\/support\\\/manuels-techniques\\\/types-d-appuis\\\/\",\"url\":\"https:\\\/\\\/protasoftware.com\\\/fr\\\/support\\\/manuels-techniques\\\/types-d-appuis\\\/\",\"name\":\"Types d'appuis dans ProtaStructure\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/protasoftware.com\\\/fr\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/protasoftware.com\\\/fr\\\/support\\\/manuels-techniques\\\/types-d-appuis\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/protasoftware.com\\\/fr\\\/support\\\/manuels-techniques\\\/types-d-appuis\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/protasoftware.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/hc-6a136f7aed54.png\",\"datePublished\":\"2026-04-27T13:04:12+00:00\",\"description\":\"D\u00e9couvrez les types d'appuis disponibles dans ProtaStructure : fixes, articul\u00e9s, \u00e0 rouleau et \u00e0 ressort, pour mod\u00e9liser les conditions aux limites.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/protasoftware.com\\\/fr\\\/support\\\/manuels-techniques\\\/types-d-appuis\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/protasoftware.com\\\/fr\\\/support\\\/manuels-techniques\\\/types-d-appuis\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/protasoftware.com\\\/fr\\\/support\\\/manuels-techniques\\\/types-d-appuis\\\/#primaryimage\",\"url\":\"https:\\\/\\\/protasoftware.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/hc-6a136f7aed54.png\",\"contentUrl\":\"https:\\\/\\\/protasoftware.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/hc-6a136f7aed54.png\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/protasoftware.com\\\/fr\\\/support\\\/manuels-techniques\\\/types-d-appuis\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\\\/\\\/protasoftware.com\\\/fr\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Types d’appuis\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/protasoftware.com\\\/fr\\\/#website\",\"url\":\"https:\\\/\\\/protasoftware.com\\\/fr\\\/\",\"name\":\"Prota Software\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/protasoftware.com\\\/fr\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Types d'appuis dans ProtaStructure","description":"D\u00e9couvrez les types d'appuis disponibles dans ProtaStructure : fixes, articul\u00e9s, \u00e0 rouleau et \u00e0 ressort, pour mod\u00e9liser les conditions aux limites.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/types-d-appuis\/","og_locale":"fr_FR","og_type":"article","og_title":"Prota Software","og_description":"D\u00e9couvrez les types d'appuis disponibles dans ProtaStructure : fixes, articul\u00e9s, \u00e0 rouleau et \u00e0 ressort, pour mod\u00e9liser les conditions aux limites.","og_url":"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/types-d-appuis\/","og_site_name":"Prota Software","og_image":[{"url":"https:\/\/protasoftware.com\/wp-content\/uploads\/2026\/09\/hc-6a136f7aed54.png","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_title":"Prota Software","twitter_misc":{"Dur\u00e9e de lecture estim\u00e9e":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/types-d-appuis\/","url":"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/types-d-appuis\/","name":"Types d'appuis dans ProtaStructure","isPartOf":{"@id":"https:\/\/protasoftware.com\/fr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/types-d-appuis\/#primaryimage"},"image":{"@id":"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/types-d-appuis\/#primaryimage"},"thumbnailUrl":"https:\/\/protasoftware.com\/wp-content\/uploads\/2026\/09\/hc-6a136f7aed54.png","datePublished":"2026-04-27T13:04:12+00:00","description":"D\u00e9couvrez les types d'appuis disponibles dans ProtaStructure : fixes, articul\u00e9s, \u00e0 rouleau et \u00e0 ressort, pour mod\u00e9liser les conditions aux limites.","breadcrumb":{"@id":"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/types-d-appuis\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/types-d-appuis\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/types-d-appuis\/#primaryimage","url":"https:\/\/protasoftware.com\/wp-content\/uploads\/2026\/09\/hc-6a136f7aed54.png","contentUrl":"https:\/\/protasoftware.com\/wp-content\/uploads\/2026\/09\/hc-6a136f7aed54.png"},{"@type":"BreadcrumbList","@id":"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/types-d-appuis\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"https:\/\/protasoftware.com\/fr\/"},{"@type":"ListItem","position":2,"name":"Types d’appuis"}]},{"@type":"WebSite","@id":"https:\/\/protasoftware.com\/fr\/#website","url":"https:\/\/protasoftware.com\/fr\/","name":"Prota Software","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/protasoftware.com\/fr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"}]}},"_links":{"self":[{"href":"https:\/\/protasoftware.com\/fr\/wp-json\/wp\/v2\/wiki\/2323","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/protasoftware.com\/fr\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/protasoftware.com\/fr\/wp-json\/wp\/v2\/types\/wiki"}],"author":[{"embeddable":true,"href":"https:\/\/protasoftware.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":0,"href":"https:\/\/protasoftware.com\/fr\/wp-json\/wp\/v2\/wiki\/2323\/revisions"}],"wp:attachment":[{"href":"https:\/\/protasoftware.com\/fr\/wp-json\/wp\/v2\/media?parent=2323"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/protasoftware.com\/fr\/wp-json\/wp\/v2\/categories?post=2323"},{"taxonomy":"whitepaper_topic","embeddable":true,"href":"https:\/\/protasoftware.com\/fr\/wp-json\/wp\/v2\/whitepaper_topic?post=2323"},{"taxonomy":"whitepaper_product","embeddable":true,"href":"https:\/\/protasoftware.com\/fr\/wp-json\/wp\/v2\/whitepaper_product?post=2323"},{"taxonomy":"whitepaper_type","embeddable":true,"href":"https:\/\/protasoftware.com\/fr\/wp-json\/wp\/v2\/whitepaper_type?post=2323"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}