{"id":2312,"date":"2026-04-27T13:00:20","date_gmt":"2026-04-27T13:00:20","guid":{"rendered":"https:\/\/protasoftware.com\/fr\/wiki\/charges-thermiques\/"},"modified":"2026-04-27T13:00:20","modified_gmt":"2026-04-27T13:00:20","slug":"charges-thermiques","status":"publish","type":"wiki","link":"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/charges-thermiques\/","title":{"rendered":"Charges thermiques"},"content":{"rendered":"

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


<\/span><\/span><\/p>\n

<\/div>\n
<\/div>\n
           D\u00e9finir la charge thermique<\/span><\/div>\n<\/p>\n<\/td>\n
\n

Des diff\u00e9rences de temp\u00e9rature d\u00e9finies par l’utilisateur peuvent \u00eatre affect\u00e9es \u00e0 un ou plusieurs poteaux, voiles et poutres du mod\u00e8le.<\/span><\/span><\/span>
<\/span><\/p>\n

Une charge thermique de type \u00ab <\/span><\/span>axiale<\/span><\/span><\/i> \u00bb modifie la temp\u00e9rature de tout l’\u00e9l\u00e9ment selon la valeur indiqu\u00e9e. La valeur saisie doit correspondre \u00e0 une diff\u00e9rence de temp\u00e9rature. 
<\/span><\/span><\/span><\/p>\n

Une charge thermique de type \u00ab <\/span><\/span>Gradient<\/span><\/span><\/i> \u00bb correspond \u00e0 une variation de temp\u00e9rature sur la largeur ou la hauteur de l’\u00e9l\u00e9ment.<\/span><\/span><\/span>
<\/span><\/p>\n

REMARQUE : <\/span><\/b>La combinaison de charges d\u00e9finie doit inclure un cas de charge thermique pour appliquer une charge thermique.<\/span><\/i><\/span><\/span>
<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n


<\/span><\/span><\/span><\/p>\n

Pour utiliser cette fonction, l’utilisateur doit v\u00e9rifier que l’option "<\/span>Chargement thermique<\/span><\/i>" est coch\u00e9e dans "<\/span>G\u00e9n\u00e9rateur de chargement automatique"<\/span><\/i>. Cela garantit que le programme inclut les charges thermiques dans la combinaison de charges. Si cette option n’est pas coch\u00e9e, un avertissement invite l’utilisateur \u00e0 affecter des charges thermiques aux combinaisons de charges.<\/span><\/div>\n
<\/div>\n
<\/div>\n
\n

\n

Pour d\u00e9finir des charges thermiques sur les poteaux, voiles ou poutres :<\/div>\n<\/p>\n
    \n
  1. \n
    S\u00e9lectionnez
    \n les \u00e9l\u00e9ments auxquels affecter la charge. <\/div>\n<\/li>\n
  2. \n
    S\u00e9lectionnez
    \n l’option \u00ab Charges thermiques (par lot)<\/i>  \u00bb dans le menu
    \n d\u00e9roulant "Chargement" <\/i>d\u00e9roulant. <\/div>\n
    <\/div>\n<\/li>\n
  3. \n
    La
    \n \u00ab Charges thermiques (par lot) "<\/i>  bo\u00eete de dialogue s’ouvre.<\/div>\n<\/li>\n
  4. \n
    S\u00e9lectionnez
    \n un cas de charge thermique dans la liste \u00ab Cas de charge \u00bb.<\/div>\n
    \"A<\/div>\n<\/li>\n
  5. \n
    D\u00e9finissez
    \n la diff\u00e9rence de temp\u00e9rature axiale ou de gradient requise, puis
    \n choisissez les types d’\u00e9l\u00e9ments auxquels elle s’applique. <\/div>\n<\/li>\n<\/ol>\n

    \n

    \"Notes\"<\/p>\n
    Pour T (axial), une valeur positive indique une hausse par rapport \u00e0 la
    \ntemp\u00e9rature ambiante ; une valeur n\u00e9gative indique une baisse.<\/div>\n
    Pour Gradient, 2-2 d\u00e9signe l’axe fort tandis que 3-3 d\u00e9signe
    \nl’axe faible<\/div>\n<\/p>\n

    \n

    \n

               \"A<\/div>\n

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

      \n
    1. \n
      La
      \n diff\u00e9rence de temp\u00e9rature ne sera affect\u00e9e qu’aux \u00e9l\u00e9ments s\u00e9lectionn\u00e9s
      \n si vous appuyez sur le bouton \u00ab Appliquer aux \u00e9l\u00e9ments s\u00e9lectionn\u00e9s<\/i> \u00bb.<\/div>\n<\/li>\n
    2. \n
      Tous
      \n les \u00e9l\u00e9ments de l’\u00e9tage actuel re\u00e7oivent la m\u00eame diff\u00e9rence de
      \n temp\u00e9rature si l’option \u00ab Appliquer \u00e0 tous les \u00e9l\u00e9ments de l’\u00e9tage actuel<\/i> \u00bb
      \n est s\u00e9lectionn\u00e9e.<\/div>\n<\/li>\n
    3. \n
      \u00ab Appliquer
      \n \u00e0 tous les \u00e9l\u00e9ments du mod\u00e8le<\/i> \u00bb attribue la m\u00eame diff\u00e9rence de
      \n temp\u00e9rature \u00e0 tous les \u00e9l\u00e9ments du syst\u00e8me.<\/div>\n<\/li>\n
    4. \n
      Fermez
      \n le formulaire en appuyant sur le bouton \u00ab OK<\/i> \u00bb. Les valeurs
      \n saisies sont affect\u00e9es en tant que charges thermiques. Pour v\u00e9rifier s’il existe une
      \n charge thermique d\u00e9finie sur un \u00e9l\u00e9ment, survolez l’\u00e9l\u00e9ment avec la souris.
      \n La  \u00ab Fen\u00eatre d’infobulle de l’\u00e9l\u00e9ment<\/i> \u00bb affiche aussi les
      \n informations de charge thermique.<\/div>\n<\/li>\n<\/ol>\n<\/div>\n

      Pour modifier ou supprimer les charges thermiques sur les poteaux, voiles ou poutres :<\/span><\/span><\/span>
      <\/span><\/span><\/p>\n

        \n
      1. \n
        S\u00e9lectionnez le poteau, le voile ou la poutre concern\u00e9, puis rouvrez le formulaire \u00ab <\/span><\/span>Charges thermiques (par lot)<\/span><\/span><\/i> \u00bb comme d\u00e9crit ci-dessus.
        <\/span><\/span><\/div>\n<\/li>\n
      2. \n
        S\u00e9lectionnez le cas de charge dans la liste \u00ab Cas de charge \u00bb. En saisissant une valeur diff\u00e9rente dans les champs concern\u00e9s (T(axial), T 2-2(Gradient) ou T 3-3(Gradient)), vous modifiez la charge. Saisir z\u00e9ro supprime la charge. Pour que les modifications soient valides,   <\/span><\/span>il suffit d’appuyer sur le bouton \u00ab <\/span><\/span>OK<\/span><\/span><\/i> \u00bb sans changer de cas de charge<\/span><\/span><\/u> .<\/span><\/span><\/div>\n<\/li>\n<\/ol>\n

        \n

        <\/p>\n
        \"Notes\"<\/div>\n
        Effectuez la suppression ou la modification pour un seul cas de charge \u00e0 la fois.<\/span><\/div>\n

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

        <\/div>\n<\/p>\n
        \n
        <\/p>\n
        \"Info\"<\/div>\n
        Lorsque vous effectuez l’Analyse du b\u00e2timent, veuillez v\u00e9rifier que l’option <\/span>"Niveaux de plancher sans diaphragme rigide"<\/span><\/i> est coch\u00e9e. Cette op\u00e9ration s’effectue dans l’onglet <\/span>"Mod\u00e8le de dalle"<\/span><\/i> des <\/span>"Options du mod\u00e8le"<\/span><\/i> de la bo\u00eete de dialogue <\/span>"Analyse du b\u00e2timent"<\/span><\/i>.<\/span><\/div>\n

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

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

                   D\u00e9finir la charge thermique Des diff\u00e9rences de temp\u00e9rature d\u00e9finies par l’utilisateur peuvent \u00eatre affect\u00e9es \u00e0 un ou plusieurs poteaux, voiles…<\/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-2312","wiki","type-wiki","status-publish","hentry","category-structural-modelling"],"yoast_head":"\nCharges thermiques<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez comment d\u00e9finir et appliquer les charges thermiques dans ProtaStructure pour analyser les effets de dilatation sur les structures.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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