{"id":2389,"date":"2020-04-07T20:54:37","date_gmt":"2020-04-07T20:54:37","guid":{"rendered":"https:\/\/protasoftware.com\/fr\/wiki\/effets-de-deplacement-lateral-3d-dans-un-batiment-a-plusieurs-etages\/"},"modified":"2020-04-07T20:54:37","modified_gmt":"2020-04-07T20:54:37","slug":"effets-de-deplacement-lateral-3d-dans-un-batiment-a-plusieurs-etages","status":"publish","type":"wiki","link":"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/effets-de-deplacement-lateral-3d-dans-un-batiment-a-plusieurs-etages\/","title":{"rendered":"Effets de d\u00e9placement lat\u00e9ral 3D dans un b\u00e2timent \u00e0 plusieurs \u00e9tages"},"content":{"rendered":"<h6><strong>R\u00e9sum\u00e9<\/strong><\/h6>\n<h3>Comprendre le d\u00e9placement lat\u00e9ral sous charges verticales<\/h3>\n<p>De nombreuses structures se d\u00e9placent lat\u00e9ralement sous des charges verticales (gravitaires). Ce d\u00e9placement reste g\u00e9n\u00e9ralement faible. Il peut pourtant modifier nettement les <strong>diagrammes de moments<\/strong> attendus dans les poutres. Ces modifications peuvent affecter le comportement et la s\u00e9curit\u00e9 de la structure. L\u2019ing\u00e9nieur doit donc int\u00e9grer le d\u00e9placement lat\u00e9ral dans ses calculs.<\/p>\n<h3>Effets du d\u00e9placement lat\u00e9ral sous charges verticales<\/h3>\n<p>Le d\u00e9placement lat\u00e9ral sous charges verticales touche plusieurs \u00e9l\u00e9ments de la structure :<\/p>\n<ol>\n<li><strong>Poutres<\/strong> : les changements des diagrammes de moments peuvent entra\u00eener des r\u00e9partitions d\u2019efforts inattendues.<\/li>\n<li><strong>Poteaux et voiles<\/strong> : les efforts axiaux et les moments dans les poteaux et les voiles peuvent varier fortement. Sans prise en compte, une instabilit\u00e9 est possible.<\/li>\n<\/ol>\n<p>Ignorer ces effets peut nuire \u00e0 l\u2019efficacit\u00e9 de la structure. Dans les cas extr\u00eames, il peut provoquer une ruine.<\/p>\n<h3>Importance des cas de charges fictives<\/h3>\n<p>Pour tenir compte du d\u00e9placement lat\u00e9ral, l\u2019ing\u00e9nieur v\u00e9rifie les combinaisons de charges incluant des <strong>cas de charges fictives<\/strong>. Ces cas simulent de faibles forces lat\u00e9rales, appliqu\u00e9es dans le sens du d\u00e9placement naturel de la structure. Ils garantissent :<\/p>\n<ul>\n<li>Une repr\u00e9sentation fid\u00e8le du comportement de la structure sous chargement combin\u00e9.<\/li>\n<li>Des marges de s\u00e9curit\u00e9 suffisantes dans le calcul, pour \u00e9viter les d\u00e9formations ou efforts impr\u00e9vus.<\/li>\n<li>La conformit\u00e9 aux codes de structure et aux bonnes pratiques.<\/li>\n<\/ul>\n<h3>Qui doit prendre en compte les cas de charges fictives ?<\/h3>\n<p>Les ing\u00e9nieurs et projeteurs de b\u00e2timents \u00e0 plusieurs \u00e9tages, ou d\u2019autres structures sensibles au d\u00e9placement lat\u00e9ral, doivent int\u00e9grer des cas de charges fictives \u00e0 leur calcul. Cette pratique est essentielle pour les structures hautes, \u00e9lanc\u00e9es ou flexibles. Le d\u00e9placement naturel y est plus marqu\u00e9.<\/p>\n<h3>Applications concr\u00e8tes<\/h3>\n<p>D\u00e9couvrez comment les ing\u00e9nieurs utilisent <strong>ProtaStructure<\/strong> pour traiter le d\u00e9placement lat\u00e9ral et am\u00e9liorer la pr\u00e9cision du calcul :<\/p>\n<ul>\n<li>Consultez notre <a href=\"https:\/\/protasoftware.com\/community\/projects-gallery\/\" target=\"_new\" rel=\"noopener\"><strong>Galerie de projets<\/strong><\/a> pour des exemples concrets.<\/li>\n<li>Parcourez nos <a href=\"https:\/\/protasoftware.com\/community\/client-success\/\" target=\"_new\" rel=\"noopener\"><strong>T\u00e9moignages clients<\/strong><\/a> pr\u00e9sentant des r\u00e9alisations innovantes.<\/li>\n<\/ul>\n<h3>Int\u00e9r\u00eat de prendre en compte le d\u00e9placement lat\u00e9ral dans le calcul<\/h3>\n<p>En int\u00e9grant le d\u00e9placement lat\u00e9ral sous charges verticales et les cas de charges fictives, l\u2019ing\u00e9nieur peut :<\/p>\n<ul>\n<li>Am\u00e9liorer la pr\u00e9cision des calculs d\u2019efforts et de moments dans les \u00e9l\u00e9ments de structure.<\/li>\n<li>Accro\u00eetre la s\u00e9curit\u00e9 et la stabilit\u00e9 des poutres, poteaux et voiles.<\/li>\n<li>Garantir la conformit\u00e9 aux codes et normes de calcul, et r\u00e9duire les risques pendant la construction et l\u2019exploitation.<\/li>\n<\/ul>\n<p>\t\t\t<a href=\"https:\/\/cdn.protasoftware.com\/documents\/whitepaper\/protastructure-design-guide-3d-sway-effects-of-multi-storey-building.pdf\" target=\"_blank\" rel=\"noopener\"><br \/>\n    Ouvrir le document<br \/>\n<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>R\u00e9sum\u00e9 Comprendre le d\u00e9placement lat\u00e9ral sous charges verticales De nombreuses structures se d\u00e9placent lat\u00e9ralement sous des charges verticales (gravitaires). Ce d\u00e9placement reste g\u00e9n\u00e9ralement faible. Il&hellip;<\/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":[32],"whitepaper_topic":[],"whitepaper_product":[],"whitepaper_type":[],"class_list":["post-2389","wiki","type-wiki","status-publish","hentry","category-building-analysis"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.9 (Yoast SEO v27.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>D\u00e9placement lat\u00e9ral sous charges verticales : effets et solutions<\/title>\n<meta name=\"description\" content=\"Comprenez comment le d\u00e9placement lat\u00e9ral sous charges verticales affecte poutres et poteaux. 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