{"id":26261,"date":"2025-08-29T15:02:43","date_gmt":"2025-08-29T15:02:43","guid":{"rendered":"https:\/\/support.buildsoft.eu\/docs\/deformation-fissuree-a-linfini\/"},"modified":"2026-08-13T10:41:40","modified_gmt":"2026-08-13T10:41:40","slug":"deformation-fissuree-a-linfini","status":"publish","type":"docs","link":"https:\/\/support.buildsoft.eu\/fr\/docs\/diamonds\/dimensionnement-beton-arme\/calcul-de-la-fleche-fissuree\/deformation-fissuree-a-linfini\/","title":{"rendered":"D\u00e9formation fissur\u00e9e \u00e0 l&rsquo;infini"},"content":{"rendered":"<p><\/p>\n\n<p style=\"font-size:16px\">Calculer la d\u00e9formation de la fissure au temps infini :<\/p>\n\n<ul>\n<li>Cliquez sur <img decoding=\"async\" loading=\"lazy\" width=\"20\" height=\"20\" class=\"alignnone size-full wp-image-17365\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/08\/KnopBerekenGescheurde.png\" alt=\"\" \/> ou allez dans le menu <strong>\u00ab\u00a0<\/strong><em>Analyse &#8211; D\u00e9formation fissur\u00e9e<\/em><strong>\u00ab\u00a0.<\/strong> <br \/>La bo\u00eete de dialogue suivante appara\u00eet:<\/li>\n<\/ul>\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" loading=\"lazy\" width=\"433\" height=\"256\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/08\/VensterGescheurdeDoorbuiging.png\" alt=\"\" class=\"wp-image-15572\" \/><\/figure>\n\n<ul>\n<li><strong>Type d&rsquo;armature<br><\/strong>Cette option vous permet de choisir avec quelle armature la rigidit\u00e9 des sections transversales doit \u00eatre d\u00e9termin\u00e9e. Vous pouvez choisir entre :<strong><br><\/strong>\n<ul>\n<li>uniquement l&rsquo;armature th\u00e9orique (y compris l&rsquo;armature minimale)<\/li>\n\n\n\n<li>uniquement l&rsquo;armature d\u00e9finie dans la pratique<br \/>Cette option est souvent utilis\u00e9e pour v\u00e9rifier la d\u00e9formation de fissures dans des plaques d\u00e9j\u00e0 existantes, car vous pouvez entrer l&rsquo;armature appliqu\u00e9e en tant qu&rsquo;armature pratique.<\/li>\n\n\n\n<li>l&rsquo;armature th\u00e9orique (y compris l&rsquo;armature minimale) et l&rsquo;armature pratique<br \/>Il s&rsquo;agit du r\u00e9glage par d\u00e9faut.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Facteur \u03b2<br><\/strong>Ce param\u00e8tre prend en compte la nature de la charge.\n<ul>\n<li>\u03b2 = 1,0 pour une charge unique \u00e0 court terme<\/li>\n\n\n\n<li>\u03b2 = 0,5 pour les charges \u00e0 long terme et\/ou r\u00e9p\u00e9t\u00e9es.<br \/><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n<p class=\"pliststyle\">Dans la pratique, il est conseill\u00e9 de toujours utiliser 0,5, car ni les charges fixes, ni les charges de service ne sont des charges uniques et \u00e0 court terme.<\/p>\n\n<p class=\"pliststyle\" style=\"font-size:16px\">Note : Dans l&rsquo;ancienne norme ENV 1992-1-1, le facteur \u03b2 \u00e9tait divis\u00e9 en deux facteurs <sub>\u03b21<\/sub> et <sub>\u03b22<\/sub> o\u00f9 <sub>\u03b21<\/sub> prend en compte l&rsquo;adh\u00e9rence entre le b\u00e9ton et les barres. Pour les barres ayant une meilleure adh\u00e9rence, nous prenons <sub>\u03b21<\/sub> \u00e9gal \u00e0 1.<\/p>\n\n<ul>\n<li><strong>Calculer la d\u00e9formation apr\u00e8s fluage<\/strong><br \/>Cette option vous permet de prendre en compte l&rsquo;effet du fluage du b\u00e9ton. Si vous cochez cette option, le module d&rsquo;\u00e9lasticit\u00e9 du b\u00e9ton sera calcul\u00e9 comme suit :<br \/><p class=\"ql-center-displayed-equation\" style=\"line-height: 27px;\"><span class=\"ql-right-eqno\"> &nbsp; <\/span><span class=\"ql-left-eqno\"> &nbsp; <\/span><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/ql-cache\/quicklatex.com-2d62a866fc356a0843900e3398997f5c_l3.png\" height=\"27\" width=\"102\" class=\"ql-img-displayed-equation quicklatex-auto-format\" alt=\"&#92;&#091;&#36;&#69;&#95;&#123;&#99;&#44;&#105;&#110;&#102;&#125;&#61;&#92;&#102;&#114;&#97;&#99;&#123;&#69;&#95;&#123;&#99;&#44;&#50;&#56;&#125;&#125;&#123;&#49;&#43;&#92;&#118;&#97;&#114;&#112;&#104;&#105;&#32;&#125;&#36;&#92;&#093;\" title=\"Rendered by QuickLaTeX.com\"\/><\/p><br \/><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/ql-cache\/quicklatex.com-ea4b44819badec53f472a0cf6b6c8164_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#118;&#97;&#114;&#112;&#104;&#105;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"11\" style=\"vertical-align: -4px;\"\/> est le facteur de fluage d\u00e9fini dans la <a rel=\"noopener\" href=\"https:\/\/support.buildsoft.eu\/docs\/diamonds\/libraries\/material-library\/\" data-id=\"16436\" target=\"_blank\">biblioth\u00e8que des mat\u00e9riaux<\/a>. La valeur par d\u00e9faut est 2.<br \/>Dans la d\u00e9formation fissur\u00e9e \u00e0 l&rsquo;infini, on suppose que toutes les charges provoquent un fluage de 100 %. M\u00eame la partie non quasi-permanente des charges vives. Cette d\u00e9formation est donc assez conservatrice.<br \/>Si vous ne cochez pas cette option, Diamonds calculera la d\u00e9flexion instantan\u00e9e de la fissure.<\/li>\n\n\n\n<li><strong>\u00c9tendez la th\u00e9orie de la fissuration aux forces axiales<br \/><\/strong>Les contraintes de flexion provoquent des tensions. Les tensions provoquent des fissures. Les fissures diminuent la rigidit\u00e9 en flexion de l&rsquo;\u00e9l\u00e9ment.<br \/>Mais les contraintes axiales peuvent \u00e9galement provoquer des tensions et des fissures. Ils n&rsquo;affecteront pas la rigidit\u00e9 en flexion, mais la rigidit\u00e9 <strong>axiale<\/strong>!<strong><br \/>Si vous cochez cette option, la rigidit\u00e9 en flexion et la rigidit\u00e9 axiale seront toutes deux r\u00e9duites, de sorte que la fissuration, par exemple d&rsquo;un mur soumis \u00e0 une tension axiale, pourra \u00e9galement \u00eatre \u00e9valu\u00e9e.<\/strong><\/li>\n<\/ul>\n    \t\t<div class=\"hts-messages hts-messages--info  hts-messages--withtitle hts-messages--withicon \" id=\"\" style=\"\">\r\n    \t\t\t<span class=\"hts-messages__title\">More info<\/span>    \t\t\t    \t\t\t\t<p>\r\n    \t\t\t\t\t\n<ul>\n<li>All validation examples related to concrete design can are listed in <a href=\"https:\/\/support.buildsoft.eu\/knowledge-base\/intro-validation-of-diamonds\/\" target=\"_blank\" rel=\"noopener\" data-id=\"\">this article.<\/a><\/li>\n<li><a href=\"https:\/\/support.buildsoft.eu\/knowledge-base\/how-to-do-a-concrete-verification\/\" target=\"_blank\" rel=\"noopener\" data-id=\"\">This article<\/a> explains how to design for a concrete building because this article is just a small step in the process.\u00a0<\/li>\n<li>Is Diamonds giving different reinforcement amounts than ConCrete? That&rsquo;s because they use different assumptions. Read all about it <a href=\"https:\/\/support.buildsoft.eu\/knowledge-base\/why-do-concrete-and-diamonds-give-different-results\/\" target=\"_blank\" rel=\"noopener\" data-id=\"\">in this article.<\/a><\/li>\n<li>The theory behind calculating the cracked deformation is explained in <a href=\"https:\/\/www.buildsoft.eu\/en\/calculating-cracked-deflections-in-diamonds\/\" target=\"_blank\" rel=\"noopener\" data-id=\"\">this blog article<\/a>.<\/li>\n<li>The <a href=\"https:\/\/support.buildsoft.eu\/docs\/diamonds\/concrete-design\/calculation-cracked-deflection\/cracked-deflection-at-time-infinity\/\" target=\"_blank\" rel=\"noopener\" data-id=\"16868\">cracked deformation at time infinity<\/a> calculated with <img decoding=\"async\" loading=\"lazy\" class=\"img_inline alignnone size-full wp-image-17365\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/08\/KnopBerekenGescheurde.png\" alt=\"\" width=\"20\" height=\"20\" \/> will not result in the <a href=\"https:\/\/support.buildsoft.eu\/docs\/diamonds\/concrete-design\/calculation-cracked-deflection\/cracked-deflection-over-time\/\" target=\"_blank\" rel=\"noopener\" data-id=\"17009\">same cracked deformation at time infinity<\/a> calculated using <img decoding=\"async\" loading=\"lazy\" class=\"img_inline alignnone size-full wp-image-5484\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2017\/09\/KnopDoorbuigingInDeTijd.jpg\" alt=\"\" width=\"23\" height=\"24\" \/>. That&rsquo;s because both buttons use different assumptions. <a href=\"https:\/\/support.buildsoft.eu\/knowledge-base\/why-does-the-deformation-at-time-infinite-differ-from-the-deformation-calculated-in-time\/\" target=\"_blank\" rel=\"noopener\" data-id=\"\">This article<\/a> explains what those assumptions are.<\/li>\n<\/ul>\n    \t\t\t\t<\/p>\r\n    \t\t\t    \t\t\t\r\n    \t\t<\/div><!-- \/.ht-shortcodes-messages -->\r\n    \t\t\n","protected":false},"featured_media":0,"parent":26264,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","doc_tag":[],"comment_count":0,"_links":{"self":[{"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/docs\/26261"}],"collection":[{"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/docs"}],"about":[{"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/types\/docs"}],"replies":[{"embeddable":true,"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/comments?post=26261"}],"version-history":[{"count":4,"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/docs\/26261\/revisions"}],"predecessor-version":[{"id":31227,"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/docs\/26261\/revisions\/31227"}],"up":[{"embeddable":true,"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/docs\/26264"}],"wp:attachment":[{"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/media?parent=26261"}],"wp:term":[{"taxonomy":"doc_tag","embeddable":true,"href":"https:\/\/support.buildsoft.eu\/fr\/wp-json\/wp\/v2\/doc_tag?post=26261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}