{"id":1941,"date":"2025-04-07T09:25:57","date_gmt":"2025-04-07T09:25:57","guid":{"rendered":"https:\/\/protasoftware.com\/fr\/wiki\/guide-de-calcul-protastructure-comparaison-protastructure-etabs\/"},"modified":"2025-04-07T09:25:57","modified_gmt":"2025-04-07T09:25:57","slug":"guide-de-calcul-protastructure-comparaison-protastructure-etabs","status":"publish","type":"wiki","link":"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/guide-de-calcul-protastructure-comparaison-protastructure-etabs\/","title":{"rendered":"Guide de calcul ProtaStructure – Comparaison ProtaStructure ETABS"},"content":{"rendered":"

Introduction<\/h3>\n

Le \u00ab Guide de calcul ProtaStructure \u2013 Comparaison ProtaStructure ETABS \u00bb (mars 2025) compare deux logiciels de r\u00e9f\u00e9rence en ing\u00e9nierie des structures : ProtaStructure et ETABS. Il porte sur l’analyse sismique d’un b\u00e2timent en b\u00e9ton arm\u00e9 de 15 \u00e9tages, conforme \u00e0 l’ASCE 7-16. Le guide traite des m\u00e9thodes de mod\u00e9lisation, de la d\u00e9finition des param\u00e8tres sismiques et de la comparaison des performances.<\/p>\n

Mod\u00e8le analytique et description du b\u00e2timent<\/h3>\n

ProtaStructure et ETABS ont mod\u00e9lis\u00e9 le m\u00eame b\u00e2timent, afin de garantir des r\u00e9sultats impartiaux. La structure comprend des \u00e9l\u00e9ments courants : dalles en b\u00e9ton arm\u00e9, poutres et voiles. Les analyses restent ainsi coh\u00e9rentes.<\/p>\n

D\u00e9finition des charges et param\u00e8tres sismiques<\/h3>\n

Les deux logiciels appliquent l’ASCE 7-16 pour d\u00e9finir les cas de chargement sismique. Ils d\u00e9finissent des param\u00e8tres tels que les acc\u00e9l\u00e9rations spectrales (Ss pour les p\u00e9riodes courtes et S1 pour les p\u00e9riodes longues), les coefficients de site (Fa et Fv) et la cat\u00e9gorie de calcul sismique D. ProtaStructure couvre plus en d\u00e9tail les exigences du spectre sismique vertical.<\/p>\n

R\u00e9sultats comparatifs de la comparaison ProtaStructure ETABS<\/h3>\n

Les deux programmes concordent \u00e9troitement pour les masses d’\u00e9tage, les poids sismiques et les efforts tranchants \u00e0 la base. Les \u00e9carts sur les caract\u00e9ristiques modales restent faibles, autour de 1 \u00e0 1,5 %. Les variations du calcul de l’effort tranchant \u00e0 la base sont d’environ 2 %. La coh\u00e9rence entre les logiciels est forte.<\/p>\n

D\u00e9placements des n\u0153uds et efforts internes<\/h3>\n

La comparaison r\u00e9v\u00e8le de faibles \u00e9carts sur les d\u00e9placements des n\u0153uds, la r\u00e9ponse des voiles et les efforts internes des poutres. Ces variations proviennent surtout des techniques de mod\u00e9lisation de chaque logiciel et de la discr\u00e9tisation du maillage.<\/p>\n

Sensibilit\u00e9 du maillage et analyse du s\u00e9isme vertical<\/h3>\n

ProtaStructure propose des fonctions avanc\u00e9es de raffinement du maillage, qui am\u00e9liorent l’analyse sismique verticale. Un maillage plus fin r\u00e9partit les charges avec plus de pr\u00e9cision. Les r\u00e9sultats pour les effets du s\u00e9isme vertical sont plus fiables.<\/p>\n

Conclusion<\/h3>\n

ProtaStructure et ETABS r\u00e9alisent tous deux des analyses sismiques fiables. ProtaStructure se distingue cependant par sa technologie de maillage avanc\u00e9e et ses outils d\u00e9taill\u00e9s de post-traitement.<\/p>\n

Ressources compl\u00e9mentaires<\/h3>\n

Vous trouverez d’autres ressources et des exemples pratiques sur la page Communaut\u00e9<\/a> de Prota Software. Cette page regroupe des enregistrements de webinaires<\/a>, une galerie de projets<\/a> et notre cha\u00eene YouTube<\/a>.<\/p>\n

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Introduction Le \u00ab Guide de calcul ProtaStructure \u2013 Comparaison ProtaStructure ETABS \u00bb (mars 2025) compare deux logiciels de r\u00e9f\u00e9rence en ing\u00e9nierie des structures : ProtaStructure…<\/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":[54],"whitepaper_topic":[],"whitepaper_product":[],"whitepaper_type":[],"class_list":["post-1941","wiki","type-wiki","status-publish","hentry","category-protastructure-design-guides"],"yoast_head":"\nGuide de calcul ProtaStructure - Comparaison ProtaStructure ETABS<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez une comparaison ProtaStructure ETABS compl\u00e8te qui analyse la performance sismique et la mod\u00e9lisation structurelle d'un b\u00e2timent de 15 \u00e9tages.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/guide-de-calcul-protastructure-comparaison-protastructure-etabs\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Prota Software\" \/>\n<meta property=\"og:description\" content=\"D\u00e9couvrez une comparaison ProtaStructure ETABS compl\u00e8te qui analyse la performance sismique et la mod\u00e9lisation structurelle d'un b\u00e2timent de 15 \u00e9tages.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/guide-de-calcul-protastructure-comparaison-protastructure-etabs\/\" \/>\n<meta property=\"og:site_name\" content=\"Prota Software\" \/>\n<meta property=\"og:image\" content=\"https:\/\/protasoftware.com\/fr\/wp-content\/uploads\/sites\/5\/2026\/09\/prota-og-default-fr.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Prota Software\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/protasoftware.com\\\/fr\\\/support\\\/manuels-techniques\\\/guide-de-calcul-protastructure-comparaison-protastructure-etabs\\\/\",\"url\":\"https:\\\/\\\/protasoftware.com\\\/fr\\\/support\\\/manuels-techniques\\\/guide-de-calcul-protastructure-comparaison-protastructure-etabs\\\/\",\"name\":\"Guide de calcul ProtaStructure - 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