{"id":204,"date":"2024-09-02T15:30:28","date_gmt":"2024-09-02T15:30:28","guid":{"rendered":"https:\/\/protasoftware.com\/fr\/blog\/protastructure-2025-ameliorations-de-calcul\/"},"modified":"2026-09-14T08:44:41","modified_gmt":"2026-09-14T08:44:41","slug":"protastructure-2025-ameliorations-de-calcul","status":"publish","type":"post","link":"https:\/\/protasoftware.com\/fr\/blog\/protastructure-2025-ameliorations-de-calcul\/","title":{"rendered":"ProtaStructure 2025 : des am\u00e9liorations de calcul qui transforment l\u2019ing\u00e9nierie structurelle"},"content":{"rendered":"

L\u2019ing\u00e9nierie structurelle exige pr\u00e9cision, adaptabilit\u00e9 et innovation. ProtaStructure 2025 apporte des am\u00e9liorations de calcul majeures qui enrichissent la bo\u00eete \u00e0 outils de l\u2019ing\u00e9nieur. Ces \u00e9volutions accroissent l\u2019efficacit\u00e9 de la conception, affinent la pr\u00e9cision des calculs et r\u00e9pondent \u00e0 des probl\u00e9matiques structurelles vari\u00e9es. Nous passons ici en revue les fonctions cl\u00e9s de ProtaStructure 2025 : combinaisons de charges fictives, dalles portant dans un sens avec \u00e9l\u00e9ments coques orthotropes, calcul des poutres alv\u00e9olaires, calcul non sismique des pannes et lisses, et bandes de dalle manuelles dans les notes de calcul.<\/p>\n

Combinaisons de charges fictives : des charges lat\u00e9rales adaptables \u00e0 chaque r\u00e9gion<\/h3>\n
\"Combinaisons
Combinaisons de charges fictives dans ProtaStructure 2025<\/figcaption><\/figure>\n

ProtaStructure 2025 propose une approche souple des combinaisons de charges fictives, applicable dans toutes les r\u00e9gions et align\u00e9e sans effort sur les r\u00e9f\u00e9rentiels locaux. L\u00e0 o\u00f9 les charges lat\u00e9rales ne sont pas pr\u00e9dominantes, les charges fictives servent de forces minimales \u00e0 certaines hauteurs d\u2019\u00e9tage. Elles correspondent g\u00e9n\u00e9ralement \u00e0 une fraction des charges permanentes et d\u2019exploitation, mais leur valeur varie selon le code retenu.<\/p>\n

ProtaStructure 2025 simplifie l\u2019op\u00e9ration. L\u2019ing\u00e9nieur applique les charges fictives \u00e0 n\u2019importe quel type de combinaison, pour chaque coefficient de cas de charge. Cette souplesse garantit le respect de dispositions normatives complexes. Ces charges aident en outre \u00e0 traiter les irr\u00e9gularit\u00e9s g\u00e9om\u00e9triques d\u2019une structure : int\u00e9gr\u00e9es \u00e0 des combinaisons pr\u00e9cises, elles rendent compte des imperfections attendues. L\u2019option \u00ab Add Notional Loads Combinations for Geometric Imperfections \u00bb permet de les appliquer aux combinaisons b\u00e9ton arm\u00e9, aux combinaisons acier, ou aux deux.<\/p>\n

La personnalisation va plus loin : l\u2019ing\u00e9nieur choisit les coefficients de combinaison et saisit ses propres coefficients de charge. Ce contr\u00f4le est pr\u00e9cieux dans les zones aux exigences de charge particuli\u00e8res, o\u00f9 chaque \u00e9l\u00e9ment structurel doit satisfaire des crit\u00e8res sp\u00e9cifiques.<\/p>\n

Dalles portant dans un sens et \u00e9l\u00e9ments coques orthotropes : une mod\u00e9lisation par \u00e9l\u00e9ments finis affin\u00e9e<\/h3>\n
\"Am\u00e9liorations
Am\u00e9liorations ProtaStructure 2025 \u2013 rel\u00e2chements de rive des dalles portant dans un sens<\/figcaption><\/figure>\n

La mod\u00e9lisation par \u00e9l\u00e9ments finis occupe une place centrale dans l\u2019analyse structurelle moderne. ProtaStructure 2025 l\u2019enrichit pour les dalles portant dans un sens. Les dalles isotropes pr\u00e9sentent classiquement un comportement bidirectionnel en \u00e9l\u00e9ments finis, ce qui convient aux dalles en b\u00e9ton arm\u00e9 coul\u00e9es en place. Les dalles portant dans un sens \u2014 pr\u00e9fabriqu\u00e9es, pr\u00e9contraintes par pr\u00e9tension ou alv\u00e9olaires \u2014 demandent en revanche un traitement diff\u00e9rent.<\/p>\n

ProtaStructure 2025 int\u00e8gre pour cela des \u00e9l\u00e9ments coques orthotropes, dot\u00e9s d\u2019un module d\u2019\u00e9lasticit\u00e9 et d\u2019un module de cisaillement plus faibles ainsi que d\u2019un rapport de compression r\u00e9ciproque r\u00e9duit dans la direction perpendiculaire. La mod\u00e9lisation des dalles portant dans un sens gagne ainsi en r\u00e9alisme.<\/p>\n

Le logiciel permet \u00e9galement d\u2019appliquer des rel\u00e2chements d\u2019extr\u00e9mit\u00e9 \u00e0 ces dalles. La fonction sert lorsque les dalles sont bloqu\u00e9es sans liaison de continuit\u00e9, ou lorsque les rives ne transmettant pas de charge ne disposent d\u2019aucun appui. En rel\u00e2chant les moments aux rives appuy\u00e9es, l\u2019ing\u00e9nieur obtient une repr\u00e9sentation fid\u00e8le du comportement r\u00e9el.<\/p>\n

Calcul des poutres alv\u00e9olaires : des capacit\u00e9s structurelles \u00e9largies<\/h3>\n

 <\/p>\n

ProtaStructure 2025 int\u00e8gre pleinement le calcul et l\u2019analyse des poutres alv\u00e9olaires. Ces poutres, dont l\u2019\u00e2me est ajour\u00e9e, gagnent en hauteur sans suppl\u00e9ment de poids. Les ing\u00e9nieurs les appr\u00e9cient pour leur efficacit\u00e9 structurelle comme pour leur aspect.<\/p>\n

Avec cette mise \u00e0 jour, la mod\u00e9lisation, l\u2019analyse, le calcul et le ferraillage des poutres alv\u00e9olaires se font directement dans ProtaStructure. Le processus devient plus fluide et mieux int\u00e9gr\u00e9. ProtaStructure 2025 fournit par ailleurs un guide de calcul complet consacr\u00e9 aux poutres alv\u00e9olaires, avec des explications claires et des consignes pratiques pour tirer le meilleur parti de la fonction.<\/p>\n

Calcul non sismique des pannes et lisses : des ajustements structurels cibl\u00e9s<\/h3>\n
\"Calcul
Calcul non sismique des pannes et lisses : des ajustements structurels cibl\u00e9s<\/figcaption><\/figure>\n

ProtaStructure 2025 permet de calculer les pannes et les lisses uniquement pour les combinaisons non sismiques. Ces \u00e9l\u00e9ments, pr\u00e9sents dans les syst\u00e8mes de toiture et de bardage, ne r\u00e9clament g\u00e9n\u00e9ralement pas de v\u00e9rification sismique dans les zones de faible activit\u00e9. ProtaStructure 2025 all\u00e8ge donc le calcul en excluant les charges sismiques.<\/p>\n

La fonction est accessible depuis la bo\u00eete \u00e0 outils, via Settings > Steel Settings > Member Design. En se concentrant sur les seuls cas de charge pertinents, l\u2019ing\u00e9nieur obtient un calcul plus direct et mieux adapt\u00e9 aux besoins du projet.<\/p>\n

Bandes de dalle manuelles dans les notes de calcul : une documentation plus compl\u00e8te<\/h3>\n
\"Calcul
Calcul du ferraillage de dalle dans ProtaStructure 2025<\/figcaption><\/figure>\n

La qualit\u00e9 de la documentation est d\u00e9terminante en ing\u00e9nierie structurelle. ProtaStructure 2025 introduit les bandes de dalle manuelles dans les notes de calcul de dalle. Les versions pr\u00e9c\u00e9dentes n\u2019y int\u00e9graient pas les armatures plac\u00e9es manuellement. Ces ajustements figurent d\u00e9sormais dans la note de calcul, dont l\u2019exhaustivit\u00e9 progresse.<\/p>\n

La fonction compte lorsqu\u2019il faut affiner une zone de dalle pr\u00e9cise, par exemple renforcer une partie particuli\u00e8re. En consignant ces d\u00e9tails dans la note de calcul, ProtaStructure 2025 fluidifie les \u00e9changes entre bureaux d\u2019\u00e9tudes, entreprises et ma\u00eetres d\u2019ouvrage : chaque aspect du calcul est document\u00e9 et compris.<\/p>\n

Conclusion<\/h4>\n

ProtaStructure 2025 marque une \u00e9volution notable des logiciels de calcul de structures. Les nouvelles fonctions apportent souplesse, pr\u00e9cision et efficacit\u00e9. Les ing\u00e9nieurs qui utilisent les combinaisons de charges fictives, mod\u00e9lisent des dalles portant dans un sens avec \u00e9l\u00e9ments coques orthotropes ou calculent des poutres alv\u00e9olaires et des pannes non sismiques y trouvent un outil indispensable.<\/p>\n

Ces mises \u00e0 jour simplifient le travail de conception tout en garantissant que les projets r\u00e9pondent aux exigences fonctionnelles. ProtaStructure 2025 s\u2019impose comme un outil essentiel de l\u2019ing\u00e9nierie structurelle moderne. Le guide de calcul ProtaStructure 2025 apporte toutes les pr\u00e9cisions utiles \u00e0 qui souhaite approfondir ces fonctions.<\/p>\n

Pour une documentation d\u00e9taill\u00e9e, rendez-vous sur le Centre d\u2019aide Prota !<\/a><\/strong><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

L\u2019ing\u00e9nierie structurelle exige pr\u00e9cision, adaptabilit\u00e9 et innovation. ProtaStructure 2025 apporte des am\u00e9liorations de calcul majeures qui enrichissent la bo\u00eete \u00e0 outils de l\u2019ing\u00e9nieur. Ces \u00e9volutions…<\/p>\n","protected":false},"author":1,"featured_media":205,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_whitepaper_youtube_videos":"","_whitepaper_youtube_url":"","_whitepaper_youtube_thumbnail":"","footnotes":""},"categories":[3],"tags":[],"content_topic":[],"content_product":[],"content_region":[],"whitepaper_topic":[],"whitepaper_product":[],"whitepaper_type":[],"class_list":["post-204","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nProtaStructure 2025 : les am\u00e9liorations de calcul<\/title>\n<meta name=\"description\" content=\"Les am\u00e9liorations de ProtaStructure 2025 renforcent l\u2019efficacit\u00e9 et la pr\u00e9cision du calcul et apportent des solutions structurelles robustes.\" \/>\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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