{"id":2073,"date":"2026-04-27T11:53:25","date_gmt":"2026-04-27T11:53:25","guid":{"rendered":"https:\/\/protasoftware.com\/fr\/wiki\/charge-fictive-et-saisie-23-11-2021\/"},"modified":"2026-04-27T11:53:25","modified_gmt":"2026-04-27T11:53:25","slug":"charge-fictive-et-saisie-23-11-2021","status":"publish","type":"wiki","link":"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/charge-fictive-et-saisie-23-11-2021\/","title":{"rendered":"Charge fictive et saisie 23 11 2021"},"content":{"rendered":"
\n
\n

Cr\u00e9er les cas de charge horizontale fictive et la combinaison<\/span><\/span>
<\/h1>\n
\n
Pour ajouter une charge fictive au mod\u00e8le, les cas de charge fictive et les combinaisons de charge doivent \u00eatre g\u00e9n\u00e9r\u00e9s : Analyse > Analyse du b\u00e2timent > Pr\u00e9-analyse > Combinaisons de charge> G\u00e9n\u00e9rateur de charges > Combinaisons de charges horizontales, cochez Charge fictive.
<\/span><\/span><\/div>\n

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

<\/span><\/div>\n
Pour certains codes de calcul, comme l’Eurocode, vous pouvez ajouter une charge horizontale fictive. Cela permet de tenir compte des imperfections g\u00e9om\u00e9triques. Cochez l’option \u00ab Ajouter des combinaisons de charge fictive pour imperfection g\u00e9om\u00e9trique \u00bb. Choisissez ensuite le type de charge, verticale ou lat\u00e9rale, \u00e0 ajouter (voir ci-dessous).
<\/span><\/div>\n

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

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

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

D\u00e9finir les param\u00e8tres de calcul de la charge fictive<\/span>
<\/span><\/h1>\n<\/div>\n
Pour v\u00e9rifier ou modifier les param\u00e8tres de la charge fictive : Options<\/span> > onglet Charge lat\u00e9rale.<\/span><\/span><\/div>\n

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

\u00c9valuer la charge fictive appliqu\u00e9e<\/span>
<\/span><\/h1>\n
Pour \u00e9valuer la valeur calcul\u00e9e automatiquement, l’analyse du b\u00e2timent doit d’abord \u00eatre termin\u00e9e. <\/span>
<\/span><\/div>\n
Pour visualiser la charge fictive appliqu\u00e9e \u00e0 chaque \u00e9tage, acc\u00e9dez \u00e0 l’onglet Analyse ><\/span> Analyse du b\u00e2timent<\/span><\/span> > <\/span>Pr\u00e9-analyse<\/span><\/span> > <\/span>Charge de vent<\/span><\/b> et d’\u00e9tage<\/span><\/b>.<\/span><\/span>
<\/span><\/div>\n

<\/span><\/div>\n
\n
    \n
  1. Dans ce cas, 0,5 % du poids propre de chaque \u00e9tage est appliqu\u00e9 au centre de masse (CG) de chaque \u00e9tage.<\/span>
    <\/span><\/li>\n
      \n
    1. La valeur de Nx et Ny est obtenue \u00e0 partir de la masse de l’\u00e9tage (indiqu\u00e9e dans le rapport de comparaison des charges axiales), multipli\u00e9e par 0,5 % <\/span><\/li>\n<\/ol>\n<\/ol>\n
      \n
      <\/p>\n
      \"Info\"<\/div>\n
      Pour les Eurocodes, le facteur de charge fictive est en outre multipli\u00e9 par des facteurs calcul\u00e9s selon EN1992-1-:2004, cl. 5.2 (5), Eqn. 5.1<\/span><\/div>\n

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

      \n
      <\/p>\n
      <\/div>\n
      Les valeurs de Nx et Ny dans <\/span>\u00ab Charge de vent et d’\u00e9tage \u00bb <\/span><\/i>ne peuvent pas \u00eatre ajust\u00e9es. Vous pouvez uniquement modifier ces deux valeurs en ajustant les <\/span>\u00ab Facteurs de charge lat\u00e9rale \u00bb<\/span><\/i> dans <\/span>\u00ab Param\u00e8tres du projet \u00bb.<\/span><\/span><\/i><\/div>\n

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


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

      Visualiser graphiquement la charge fictive appliqu\u00e9e<\/span>
      <\/span><\/h1>\n
      Pour v\u00e9rifier la charge fictive appliqu\u00e9e dans l’onglet <\/span>Post-analyse > <\/span>Afficher le mod\u00e8le analytique <\/span><\/b>> cliquez sur Nx ou Ny<\/span><\/span> parmi les cas de charge.<\/span>
      <\/span><\/div>\n
      Les charges seront affich\u00e9es sous forme de charges nodales appliqu\u00e9es au centre du diaphragme de chaque \u00e9tage. <\/span><\/div>\n
      <\/div>\n<\/div>\n<\/div>\n
      <\/div>\n","protected":false},"excerpt":{"rendered":"

      Cr\u00e9er les cas de charge horizontale fictive et la combinaison Pour ajouter une charge fictive au mod\u00e8le, les cas de charge fictive et les combinaisons…<\/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":[35],"whitepaper_topic":[],"whitepaper_product":[],"whitepaper_type":[],"class_list":["post-2073","wiki","type-wiki","status-publish","hentry","category-pre-analysis"],"yoast_head":"\nCharge fictive : saisie des donn\u00e9es<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez comment d\u00e9finir la charge fictive et saisir les donn\u00e9es associ\u00e9es pour une analyse structurelle fiable et conforme aux normes en vigueur.\" \/>\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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