{"id":2186,"date":"2026-04-27T12:19:15","date_gmt":"2026-04-27T12:19:15","guid":{"rendered":"https:\/\/protasoftware.com\/fr\/wiki\/procedure-de-calcul-et-de-modelisation-des-dalles-nervurees-ps-2022\/"},"modified":"2026-04-27T12:19:15","modified_gmt":"2026-04-27T12:19:15","slug":"procedure-de-calcul-et-de-modelisation-des-dalles-nervurees-ps-2022","status":"publish","type":"wiki","link":"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/procedure-de-calcul-et-de-modelisation-des-dalles-nervurees-ps-2022\/","title":{"rendered":"Proc\u00e9dure de calcul et de mod\u00e9lisation des dalles nervur\u00e9es \u2013 PS 2022"},"content":{"rendered":"
\n
Comme les dalles ordinaires, les dalles nervur\u00e9es\/planchers-caissons peuvent \u00eatre analys\u00e9es s\u00e9par\u00e9ment du b\u00e2timent sous G et Q, ou avec le mod\u00e8le du b\u00e2timent sous toutes les combinaisons.<\/span><\/div>\n
\n
\n <\/div>\n
\n Les dalles nervur\u00e9es\/planchers-caissons doivent \u00eatre analys\u00e9es avec l’approche EF.
<\/span>\n <\/div>\n
\n
<\/span>\n <\/div>\n<\/p><\/div>\n

Proc\u00e9dure de mod\u00e9lisation :<\/span><\/b>
<\/span><\/h1>\n
    \n
  1. \n
    \n Ins\u00e9rez des dalles nervur\u00e9es et des planchers-caissons selon les besoins. Les largeurs de poutre sont g\u00e9n\u00e9ralement de l’ordre de 800 \u00e0 1 000 mm et les hauteurs de poutre de 320 mm.
    <\/span>\n <\/div>\n<\/li>\n
  2. \n
    \n Ins\u00e9rez des bandes de dalle. La bande doit couvrir toutes les poutres nervur\u00e9es continues. En cas de discontinuit\u00e9, une nouvelle bande doit \u00eatre ins\u00e9r\u00e9e. 
    <\/span>\n <\/div>\n<\/li>\n
      \n
    1. La bande doit \u00eatre orient\u00e9e dans le sens des poutres nervur\u00e9es.
      <\/span><\/li>\n
    2. Lors du calcul, la longueur de la poutre nervur\u00e9e calcul\u00e9e d\u00e9pend de la position de la bande (poutre la plus proche de la bande). Vous pouvez donc ins\u00e9rer une bande le long de chaque poutre nervur\u00e9e, ou uniquement le long de la plus critique.<\/span><\/li>\n
    3.  La bande de dalle doit \u00eatre d\u00e9finie sur \u00ab Bande EF \u00bb, puis l’option \u00ab Bande de port\u00e9e EF \u00bb doit \u00eatre s\u00e9lectionn\u00e9e comme type de bande de dalle. (Voir la capture d’\u00e9cran ci-dessous). \n
      <\/div>\n

      <\/li>\n

    4. Lors de la cr\u00e9ation de la bande de dalle, assurez-vous que la condition D\u00e9but\/Fin correcte est s\u00e9lectionn\u00e9e. Veuillez consulter <\/span><\/span><\/font>Utilisation des bandes de dalle – Conditions aux limites<\/a> pour plus de d\u00e9tails.<\/span><\/li>\n<\/ol>\n<\/ol>\n

      Proc\u00e9dure d’analyse :<\/span><\/b><\/h1>\n
        \n
      1. \n
        \n Si la m\u00e9thode EF est privil\u00e9gi\u00e9e, effectuez d’abord une analyse de dalle EF.
        <\/span>\n <\/div>\n<\/li>\n
      2. \n
        \n Cliquez sur Calcul b\u00e9ton arm\u00e9<\/i><\/b> > Analyse des dalles nervur\u00e9es<\/i><\/b>. Cela permet de calculer les efforts internes \u00e0 partir des r\u00e9sultats EF existants.

        <\/span>\n <\/div>\n<\/li>\n
      3. Un rapport s’affiche. Il r\u00e9sume les r\u00e9sultats de l’analyse.

        <\/span><\/li>\n<\/ol>\n

        Proc\u00e9dure de calcul :<\/span><\/b><\/h1>\n
          \n
        1. \n
          \n Une fois l’analyse des dalles nervur\u00e9es effectu\u00e9e, acc\u00e9dez \u00e0 Calcul b\u00e9ton arm\u00e9<\/i><\/b> > Calcul de l’armature des poutres<\/i><\/b> > Poutres nervur\u00e9es <\/i><\/b> 
          <\/span>\n <\/div>\n<\/li>\n
        2. \n
          \n Le menu de calcul des poutres s’affiche, renseign\u00e9 avec les poutres nervur\u00e9es \u00e0 la place des poutres d’\u00e9tage. 

          <\/span>\n <\/div>\n<\/li>\n
        3. Calculez les poutres nervur\u00e9es comme d’habitude. 
          <\/span><\/li>\n
        4. Les d\u00e9tails des poutres nervur\u00e9es sont accessibles en cliquant sur le bouton Plans de d\u00e9tails<\/i><\/b>.<\/span><\/li>\n
        5. Le nombre de poutres nervur\u00e9es calcul\u00e9es est \u00e9gal au nombre de dalles nervur\u00e9es ins\u00e9r\u00e9es. 
          <\/span><\/li>\n
        6. \u00ab Quantit\u00e9 \u00bb<\/b> : cette colonne indique le nombre de poutres nervur\u00e9es par dalle. Elle est renseign\u00e9e automatiquement.<\/span><\/li>\n<\/ol>\n
          \n
          \n \"Info\"<\/p>\n
          \n Pour le calcul et la d\u00e9composition des charges sur les dalles nervur\u00e9es et les planchers-caissons, veuillez consulter 
          \n ProtaStructure – Guide de calcul des charges sur dalles nervur\u00e9es et planchers-caissons<\/a>\n <\/div>\n

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

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

          Comme les dalles ordinaires, les dalles nervur\u00e9es\/planchers-caissons peuvent \u00eatre analys\u00e9es s\u00e9par\u00e9ment du b\u00e2timent sous G et Q, ou avec le mod\u00e8le du b\u00e2timent sous toutes…<\/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":[8],"whitepaper_topic":[],"whitepaper_product":[],"whitepaper_type":[],"class_list":["post-2186","wiki","type-wiki","status-publish","hentry","category-analysis-and-design-of-slabs"],"yoast_head":"\nCalcul et mod\u00e9lisation des dalles nervur\u00e9es \u2013 PS 2022<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez la proc\u00e9dure compl\u00e8te de mod\u00e9lisation et de calcul des dalles nervur\u00e9es dans ProtaStructure PS 2022, \u00e9tape par \u00e9tape pour vos projets.\" \/>\n<meta name=\"robots\" content=\"index, follow, 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