{"id":4218,"date":"2023-11-07T15:29:54","date_gmt":"2023-11-07T14:29:54","guid":{"rendered":"https:\/\/www.fensterinform.ch\/sia-20572021-glasbau-und-deren-auswirkungen-im-fensterbau-teil-2-berechnungsbeispiel-sia-260-vs-sia-331-2\/"},"modified":"2024-03-19T16:34:32","modified_gmt":"2024-03-19T15:34:32","slug":"la-fiche-technique-sia-20572021-constructions-en-verre-et-ses-con-sequences-pour-la-construction-de-fenetres-2e-partie-exemple-de-calcul-selon-la-norme-sia-260-compare-a-la-norme-sia-33","status":"publish","type":"post","link":"https:\/\/www.fensterinform.ch\/fr\/la-fiche-technique-sia-20572021-constructions-en-verre-et-ses-con-sequences-pour-la-construction-de-fenetres-2e-partie-exemple-de-calcul-selon-la-norme-sia-260-compare-a-la-norme-sia-33\/","title":{"rendered":"La fiche technique \u00abSIA 2057:2021 Constructions en verre\u00bb et ses con-s\u00e9quences pour la construction de fen\u00eatres  2e partie, exemple de calcul selon la norme SIA 260 compar\u00e9 \u00e0 la norme SIA 331"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1612px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" 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style=\"--awb-padding-right:130px;--awb-padding-left-medium:0px;--awb-padding-right-small:0px;--awb-bg-size:cover;--awb-width-large:75%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.4133333333333%;--awb-margin-bottom-large:0px;--awb-spacing-left-large:2.56%;--awb-width-medium:75%;--awb-order-medium:0;--awb-spacing-right-medium:3.4133333333333%;--awb-spacing-left-medium:2.56%;--awb-width-small:100%;--awb-order-small:1;--awb-spacing-right-small:0px;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-text fusion-title-size-one\" style=\"--awb-text-color:#e30613;--awb-margin-top:0px;--awb-margin-bottom:20px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h1 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;\">La fiche technique \u00abSIA 2057:2021 Constructions en verre\u00bb et ses cons\u00e9quences pour la construction de fen\u00eatres<\/h1><\/div><div class=\"fusion-title title fusion-title-2 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"--awb-text-color:#e30613;--awb-margin-top:0px;--awb-margin-bottom:20px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h3 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;\">2<sup>e<\/sup> partie, exemple de calcul selon la norme SIA 260 compar\u00e9 \u00e0 la norme SIA 331<\/h3><\/div><div class=\"fusion-text fusion-text-1\"><p>Cet article se r\u00e9f\u00e8re \u00e0<strong> <a href=\"https:\/\/www.fensterinform.ch\/fr\/la-fiche-technique-sia-20572021-constructions-en-verre-et-ses-con-sequences-pour-la-construction-de-fenetres\/\" target=\"_blank\" rel=\"noopener\">l\u2019article du 15.09.2023<\/a> <\/strong>et le compl\u00e8te par des exemples.<\/p>\n<\/div><div class=\"fusion-text fusion-text-2\"><p><strong>Hypoth\u00e8se de charge pour l\u2019exemple de calcul<\/strong><\/p>\n<\/div>\n<div class=\"table-1\">\n<table width=\"100%\">\n<tbody>\n<tr>\n<td align=\"left\">Site:<\/td>\n<td align=\"left\">site d\u2019exemple<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Pression dynamique:<\/td>\n<td align=\"left\">0.9 kN\/m2<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Hauteur du b\u00e2timent:<\/td>\n<td align=\"left\">15 m<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Cat\u00e9gorie de terrain:<\/td>\n<td align=\"left\">III, localit\u00e9s, champ libre<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Coefficients de pression:<\/td>\n<td align=\"left\">selon SIA 331, Tabelle 33 \u2013 43<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Charges de vent caract\u00e9ristique selon SIA 261 \/ 2013:<\/td>\n<td align=\"left\">Pression du vent car: 1.35 kN\/m\u00b2<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Charges de vent caract\u00e9ristique selon SIA 331 \/ 2012: (1.35 x 0.6 = 0.81)<\/td>\n<td align=\"left\">Pression du vent car: 0.81 kN\/m\u00b2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div class=\"fusion-text fusion-text-3\"><p><strong>Caract\u00e9ristiques de la fen\u00eatre<\/strong><\/p>\n<p class=\"Aufzhlungen\"><span lang=\"FR-CH\">Fen\u00eatre PVC \u00e0 2 vantaux cadre 2000x2300mm, hauteur de vantail 2180mm<\/span><\/p>\n<\/div>\n<div class=\"table-1\">\n<table width=\"100%\">\n<tbody>\n<tr>\n<td align=\"left\">Rigidit\u00e9 en flexion de la partie centrale<\/td>\n<td align=\"left\">= 202.86 10^8mm<sup>2<\/sup>N<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">D\u00e9formation admissible maximale du vitrage L\/200<\/td>\n<td align=\"left\">= 9.9mm<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">D\u00e9formation admissible maximale de la structure L\/200<\/td>\n<td align=\"left\">= 10.9mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div class=\"fusion-text fusion-text-4\"><p><strong>Calcul:<\/strong><\/p>\n<\/div>\n<div class=\"table-1\">\n<table width=\"100%\">\n<tbody>\n<tr>\n<td align=\"left\">Calcul selon SIA 331 <strong>avec<\/strong> coefficient de r\u00e9duction \u03a80 = 0,6<\/td>\n<td align=\"left\"><\/td>\n<\/tr>\n<tr>\n<td align=\"left\">D\u00e9formation existante du vitrage<\/td>\n<td align=\"left\">8.9mm = o.k.<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">D\u00e9formation existante de la structure<\/td>\n<td align=\"left\">10.8mm = o.k.<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Calcul selon SIA 260 <strong>sans<\/strong> coefficient de r\u00e9duction \u03a80 = 0,6<\/td>\n<td align=\"left\"><\/td>\n<\/tr>\n<tr>\n<td align=\"left\">D\u00e9formation existante du vitrage<\/td>\n<td align=\"left\"><strong>14.8mm = pas en ordre<\/strong><\/td>\n<\/tr>\n<tr>\n<td align=\"left\">D\u00e9formation existante de la structure<\/td>\n<td align=\"left\"><strong>18.0mm = pas en ordre<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div class=\"fusion-text fusion-text-5\"><p><strong>Conclusion:<\/strong><\/p>\n<p>Calcul de la construction selon SIA 331 = en ordre<\/p>\n<p>Calcul de la construction selon SIA 260 = pas en ordre<\/p>\n<\/div><div class=\"fusion-text fusion-text-6\" style=\"--awb-text-transform:none;\"><p><strong>Le calcul de la structure ne doit pas \u00eatre effectu\u00e9 selon la norme SIA\u00a0331 pour le support de vitrage !<\/strong><\/p>\n<p>Options:<\/p>\n<ul>\n<li>Renforcer la structure jusqu\u2019\u00e0 ce que la d\u00e9formation au niveau du support du bord du vitrage ne soit pas inf\u00e9rieure \u00e0 L\/200 (selon SIA 260).\n<ul>\n<li>Verre avec structure renforc\u00e9e = VST int\u00e9rieur \/ ext\u00e9rieur 5mm<\/li>\n<\/ul>\n<\/li>\n<li>Calculer le vitrage comme \u00e9tant maintenu sur 2 c\u00f4t\u00e9s, uniquement en bas et en haut !\n<ul>\n<li>Si le vitrage est seulement maintenu sur 2c\u00f4t\u00e9s = Verre de s\u00e9curit\u00e9 tremp\u00e9 (VST) int\u00e9rieur \/ ext\u00e9rieur 15\u00a0mm<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Dans la plupart des cas, renforcer le vitrage maintenu sur 2 c\u00f4t\u00e9s de sorte \u00e0 supporter les charges ne fait pas sens sur le plan \u00e9conomique.<\/p>\n<p><strong>Exemple<\/strong><\/p>\n<p>Avec les m\u00eames hypoth\u00e8ses de charge et caract\u00e9ristiques structurelles, mais avec une hauteur de vantail de seulement 1780mm, le calcul de la d\u00e9formation donne un r\u00e9sultat positif selon la norme SIA 260 et donc aussi selon la norme SIA 331.<\/p>\n<p><strong>Dans ce cas, la v\u00e9rification de l\u2019aptitude \u00e0 l\u2019emploi peut \u00eatre effectu\u00e9e selon la norme SIA\u00a0331. Toutefois, la d\u00e9formation de la structure ne doit pas \u00eatre inf\u00e9rieure \u00e0 L\/200, calcul\u00e9e selon la norme SIA\u00a0260!<\/strong><\/p>\n<p>Conclusion simplifi\u00e9e, sans validit\u00e9 g\u00e9n\u00e9rale:<\/p>\n<p>Pour les fen\u00eatres \u00e0 hauteur de plafond, l\u2019aptitude \u00e0 l\u2019emploi de la construction de fen\u00eatre enti\u00e8re (verre et structure) doit g\u00e9n\u00e9ralement \u00eatre calcul\u00e9 selon la norme SIA 260. Pour les fen\u00eatres d\u2019all\u00e8ge, le calcul de la structure peut en g\u00e9n\u00e9ral \u00eatre effectu\u00e9 selon la norme SIA 331, car elles n\u2019atteignent normalement pas L\/200 <em>(cela ne s\u2019applique pas aux hauteurs de b\u00e2timent &gt;25m ni aux \u00e9tages de b\u00e2timent avec q<sub>p0 <\/sub>&gt;0.9kN\/m2).<\/em><\/p>\n<p>Remarque finale:<\/p>\n<p>Le calcul de la statique du verre doit toujours \u00eatre effectu\u00e9 et document\u00e9 selon la norme SIA 260.<\/p>\n<p>Vous avez des questions sur ce sujet ou vous avez besoin de soutien technique pour votre projet?<\/p>\n<p><a href=\"https:\/\/www.fensterinform.ch\/fr\/lequipe\/\" target=\"_blank\" rel=\"noopener\"><strong>Nos experts<\/strong><\/a> se tiennent \u00e0 votre disposition pour vous conseiller<\/p>\n<\/div><ul style=\"--awb-line-height:37.4px;--awb-icon-width:37.4px;--awb-icon-height:37.4px;--awb-icon-margin:15.4px;--awb-content-margin:52.8px;\" class=\"fusion-checklist fusion-checklist-1 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