{"id":2395,"date":"2020-04-07T20:54:28","date_gmt":"2020-04-07T20:54:28","guid":{"rendered":"https:\/\/protasoftware.com\/fr\/wiki\/analyse-par-force-laterale-equivalente-selon-l-ibc\/"},"modified":"2020-04-07T20:54:28","modified_gmt":"2020-04-07T20:54:28","slug":"analyse-par-force-laterale-equivalente-selon-l-ibc","status":"publish","type":"wiki","link":"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/analyse-par-force-laterale-equivalente-selon-l-ibc\/","title":{"rendered":"Analyse par force lat\u00e9rale \u00e9quivalente selon l&rsquo;IBC"},"content":{"rendered":"<h6><strong>R\u00e9sum\u00e9<\/strong><\/h6>\n<p><strong>\u00c9tude de cas : analyse par forces lat\u00e9rales \u00e9quivalentes d&rsquo;un b\u00e2timent en b\u00e9ton arm\u00e9 de 4 \u00e9tages<\/strong><br \/>Cette \u00e9tude de cas pr\u00e9sente le calcul des forces lat\u00e9rales \u00e9quivalentes agissant sur un b\u00e2timent r\u00e9sidentiel de 4 \u00e9tages en b\u00e9ton arm\u00e9 (BA). Les proc\u00e9dures suivent les dispositions de l&rsquo;<strong>International Building Code 2018 (IBC 2018)<\/strong>. Ce code d\u00e9finit les exigences d&rsquo;analyse et de calcul des charges sismiques, afin de garantir la s\u00e9curit\u00e9 structurelle pendant un s\u00e9isme.<\/p>\n<p>La m\u00e9thode des forces lat\u00e9rales \u00e9quivalentes (ELF) est l&rsquo;une des approches les plus utilis\u00e9es pour l&rsquo;analyse sismique des b\u00e2timents de faible hauteur. Elle simplifie le calcul des charges lat\u00e9rales appliqu\u00e9es \u00e0 une structure. Les forces sismiques sont converties en forces statiques \u00e9quivalentes, r\u00e9parties sur la hauteur du b\u00e2timent. Cette \u00e9tude de cas d\u00e9taille l&rsquo;application de la m\u00e9thode ELF, \u00e9tape par \u00e9tape, \u00e0 un b\u00e2timent en b\u00e9ton arm\u00e9. Elle assure la conformit\u00e9 avec les exigences de l&rsquo;IBC 2018.<\/p>\n<h3><strong>\u00c9tapes cl\u00e9s de la d\u00e9termination des forces lat\u00e9rales \u00e9quivalentes<\/strong><\/h3>\n<ol>\n<li>\n<p><strong>Param\u00e8tres du b\u00e2timent :<\/strong><\/p>\n<ul>\n<li>Identifiez le poids sismique, la hauteur et la cat\u00e9gorie d&rsquo;occupation de la structure.<\/li>\n<li>D\u00e9terminez les facteurs sismiques propres au site, comme les coefficients d&rsquo;acc\u00e9l\u00e9ration spectrale de calcul (SDS et SD1).<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Calcul de l&rsquo;effort tranchant \u00e0 la base :<\/strong><\/p>\n<ul>\n<li>Calculez l&rsquo;effort tranchant \u00e0 la base avec l&rsquo;\u00e9quation :<br \/>V=Cs\u22c5WV = Cs cdot WV=Cs\u22c5W<br \/>o\u00f9 CsCsCs est le coefficient de r\u00e9ponse sismique et WWW le poids sismique total de la structure.<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>R\u00e9partition verticale des forces :<\/strong><\/p>\n<ul>\n<li>R\u00e9partissez l&rsquo;effort tranchant \u00e0 la base sur la hauteur du b\u00e2timent, selon les poids et les hauteurs des \u00e9tages.<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>V\u00e9rifications de conformit\u00e9 au code :<\/strong><\/p>\n<ul>\n<li>V\u00e9rifiez les r\u00e9sultats par rapport aux limites et conditions de l&rsquo;IBC 2018, notamment les limites de d\u00e9placement, les v\u00e9rifications de stabilit\u00e9 et les effets de torsion.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3><strong>Applications concr\u00e8tes<\/strong><\/h3>\n<p>La compr\u00e9hension de l&rsquo;analyse par forces lat\u00e9rales \u00e9quivalentes est essentielle pour le calcul des b\u00e2timents r\u00e9sistants aux s\u00e9ismes. Consultez la <a href=\"https:\/\/protasoftware.com\/community\/projects-gallery\/\" target=\"_new\" rel=\"noopener\">Galerie de projets<\/a> de ProtaStructure. Elle montre comment des principes de calcul sismique similaires ont \u00e9t\u00e9 appliqu\u00e9s \u00e0 des structures r\u00e9elles.<\/p>\n<p>Visitez aussi nos <a href=\"https:\/\/protasoftware.com\/community\/client-success\/\" target=\"_new\" rel=\"noopener\">T\u00e9moignages clients<\/a>. Ils montrent comment les ing\u00e9nieurs du monde entier utilisent ProtaStructure pour l&rsquo;analyse sismique pr\u00e9cise et le calcul efficace des b\u00e2timents. Ces t\u00e9moignages pr\u00e9sentent des applications pratiques des m\u00e9thodes de calcul sismique dans des projets structurels vari\u00e9s.<\/p>\n<h3><strong>Pourquoi l&rsquo;analyse pr\u00e9cise des forces lat\u00e9rales est importante<\/strong><\/h3>\n<p>L&rsquo;analyse et la r\u00e9partition correctes des forces lat\u00e9rales \u00e9quivalentes garantissent la s\u00e9curit\u00e9, la stabilit\u00e9 et la durabilit\u00e9 des structures pendant les s\u00e9ismes. Avec les recommandations de l&rsquo;IBC 2018, les ing\u00e9nieurs peuvent calculer des b\u00e2timents en b\u00e9ton arm\u00e9 qui r\u00e9sistent efficacement aux forces induites par les s\u00e9ismes, tout en respectant les exigences r\u00e9glementaires.<\/p>\n<p>\t\t\t<a href=\"https:\/\/cdn.protasoftware.com\/documents\/whitepaper\/protastructure-design-guide-ibc-equivalent-method.pdf\" target=\"_blank\" rel=\"noopener\"><br \/>\n    Ouvrir le document<br \/>\n<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>R\u00e9sum\u00e9 \u00c9tude de cas : analyse par forces lat\u00e9rales \u00e9quivalentes d&rsquo;un b\u00e2timent en b\u00e9ton arm\u00e9 de 4 \u00e9tagesCette \u00e9tude de cas pr\u00e9sente le calcul des&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":[36],"whitepaper_topic":[],"whitepaper_product":[],"whitepaper_type":[],"class_list":["post-2395","wiki","type-wiki","status-publish","hentry","category-seismic-capabilities"],"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>Analyse par force lat\u00e9rale \u00e9quivalente des b\u00e2timents en b\u00e9ton arm\u00e9 (IBC 2018)<\/title>\n<meta name=\"description\" content=\"Apprenez \u00e0 r\u00e9aliser l&#039;analyse par force lat\u00e9rale \u00e9quivalente des b\u00e2timents en b\u00e9ton arm\u00e9 selon l&#039;IBC 2018. 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