{"id":5108,"date":"2016-07-18T15:47:35","date_gmt":"2016-07-18T13:47:35","guid":{"rendered":"http:\/\/www.renforcement-planchers.com\/?p=5108"},"modified":"2016-07-18T15:47:35","modified_gmt":"2016-07-18T13:47:35","slug":"renforcement-des-dalles-contribution-de-linterface","status":"publish","type":"post","link":"https:\/\/tecnaria.com\/fr\/renforcement-des-dalles-contribution-de-linterface\/","title":{"rendered":"Renforcement des dalles : contribution de l’interface"},"content":{"rendered":"

Dans le cas du renforcement des dalles, lorsqu’il n’est pas possible d’\u00e9valuer a priori l’apport de r\u00e9sistance offert par la rugosit\u00e9 de la surface \u00e0 relier, l’intervention d’un connecteur devient tr\u00e8s importante. En effet, il est bien connu que le glissement entre les parties composant l’\u00e9l\u00e9ment structurel r\u00e9duit la capacit\u00e9 portante et augmente son aptitude \u00e0 la d\u00e9formation.<\/em><\/p>\n

Lorsque deux couches de b\u00e9ton sont coul\u00e9es en des temps diff\u00e9rents, cela peut g\u00e9n\u00e9rer une r\u00e9sistance au glissement naturel r\u00e9sultant des irr\u00e9gularit\u00e9s de la surface \u00e0 consolider. Cette tension tangentielle, \u00e0 elle seule, n’est cependant pas en mesure d’assurer la pleine collaboration. Ce n’est qu’en pr\u00e9sence d’un connecteur sp\u00e9cifique qu’il sera possible de tenir compte d’une contribution fournie par la coh\u00e9sion entre les mat\u00e9riaux. Pour simplifier, il est possible de classer les surfaces comme suit\u00a0:<\/p>\n

Rugosit\u00e9 de la surface dans le renforcement des dalles<\/h2>\n

A) Tr\u00e8s lisse<\/strong>\u00a0: en cas de coul\u00e9e sur coffrage lisse.
\nB) Lisse<\/strong>\u00a0: cas d’un chape avec surface vibr\u00e9e simplement. C’est le cas le plus fr\u00e9quent.
\nC) Rugueux<\/strong>\u00a0: rugosit\u00e9 artificielle obtenue par des moyens m\u00e9caniques.
\nD) Dent\u00e9e<\/strong>\u00a0: sp\u00e9cialement pr\u00e9par\u00e9e et coul\u00e9e avec des \u00e9l\u00e9ments profil\u00e9s ad hoc.
\nDans le cas de briques apparentes ou de lissage friable, la contribution doit \u00eatre consid\u00e9r\u00e9e, pour ce qui est de la s\u00e9curit\u00e9, comme \u00e9tant \u00e9gale \u00e0 z\u00e9ro.<\/p>\n

\"scabra\"<\/a><\/p>\n

En outre, les propri\u00e9t\u00e9s de r\u00e9sistance et de d\u00e9formation de la liaison influent sur le fonctionnement de l’\u00e9l\u00e9ment compos\u00e9\u00a0; en particulier, la ductilit\u00e9 de la liaison constitue une caract\u00e9ristique importante car, d’une part, elle permet l’obtention de la capacit\u00e9 porteuse et de flexion maximum de la structure compos\u00e9e avant que la rupture ne se v\u00e9rifie de fa\u00e7on fragile par une crise de la liaison, d’autre part, elle influe sur les crit\u00e8res de projet, car la r\u00e9partition de l’action de cisaillement permise par la ductilit\u00e9 de la liaison permet une r\u00e9partition uniforme des connecteurs le long de l’\u00e9l\u00e9ment structurel. Ces consid\u00e9rations montrent comment, pour le renforcement des dalles, la connaissance des caract\u00e9ristiques des performances de la liaison est essentielle pour la conception et l’\u00e9valuation correctes de la fiabilit\u00e9 de l’intervention d’adaptation statique du plancher par la superposition d’une dalle.<\/p>\n

Pour la facilit\u00e9 de pose, la liaison est g\u00e9n\u00e9ralement r\u00e9alis\u00e9e au moyen de connecteurs \u00e0 ergot dont l’ancrage aux \u00e9l\u00e9ments \u00e0 relier varie en fonction du mat\u00e9riau.<\/p>\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Dans le cas du renforcement des dalles, lorsqu’il n’est pas possible d’\u00e9valuer a priori l’apport de r\u00e9sistance offert par la rugosit\u00e9 de la surface \u00e0 relier, l’intervention d’un connecteur devient tr\u00e8s importante. En effet, il est bien connu que le glissement entre les parties composant l’\u00e9l\u00e9ment structurel r\u00e9duit la capacit\u00e9 portante et augmente son aptitude […]\n","protected":false},"author":2,"featured_media":7020,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[242],"tags":[],"class_list":["post-5108","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-approfondissements-briques-et-beton"],"acf":[],"yoast_head":"\nRenforcement des dalles : contribution de l'interface - Renforcement planchers en bois, acier et b\u00e9ton<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/tecnaria.com\/fr\/renforcement-des-dalles-contribution-de-linterface\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Renforcement des dalles : contribution de l'interface - Renforcement planchers en bois, acier et b\u00e9ton\" \/>\n<meta property=\"og:description\" content=\"Dans le cas du renforcement des dalles, lorsqu’il n’est pas possible d’\u00e9valuer a priori l’apport de r\u00e9sistance offert par la rugosit\u00e9 de la surface \u00e0 relier, l’intervention d’un connecteur devient tr\u00e8s importante. En effet, il est bien connu que le glissement entre les parties composant l’\u00e9l\u00e9ment structurel r\u00e9duit la capacit\u00e9 portante et augmente son aptitude [...]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/tecnaria.com\/fr\/renforcement-des-dalles-contribution-de-linterface\/\" \/>\n<meta property=\"og:site_name\" content=\"Renforcement planchers en bois, acier et b\u00e9ton\" \/>\n<meta property=\"article:published_time\" content=\"2016-07-18T13:47:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/tecnaria.com\/wp-content\/uploads\/2015\/09\/scabra.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1023\" \/>\n\t<meta property=\"og:image:height\" content=\"726\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Alberto Rosin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Alberto Rosin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/tecnaria.com\\\/fr\\\/renforcement-des-dalles-contribution-de-linterface\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/tecnaria.com\\\/fr\\\/renforcement-des-dalles-contribution-de-linterface\\\/\"},\"author\":{\"name\":\"Alberto Rosin\",\"@id\":\"https:\\\/\\\/tecnaria.com\\\/#\\\/schema\\\/person\\\/a05dc69ec1405e951123d18726bcc2e4\"},\"headline\":\"Renforcement des dalles : contribution de l’interface\",\"datePublished\":\"2016-07-18T13:47:35+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/tecnaria.com\\\/fr\\\/renforcement-des-dalles-contribution-de-linterface\\\/\"},\"wordCount\":464,\"image\":{\"@id\":\"https:\\\/\\\/tecnaria.com\\\/fr\\\/renforcement-des-dalles-contribution-de-linterface\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/tecnaria.com\\\/wp-content\\\/uploads\\\/2015\\\/09\\\/scabra.jpg\",\"articleSection\":[\"Approfondissements Briques et B\u00e9ton\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/tecnaria.com\\\/fr\\\/renforcement-des-dalles-contribution-de-linterface\\\/\",\"url\":\"https:\\\/\\\/tecnaria.com\\\/fr\\\/renforcement-des-dalles-contribution-de-linterface\\\/\",\"name\":\"Renforcement des dalles : contribution de l'interface - Renforcement planchers en bois, acier et b\u00e9ton\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/tecnaria.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/tecnaria.com\\\/fr\\\/renforcement-des-dalles-contribution-de-linterface\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/tecnaria.com\\\/fr\\\/renforcement-des-dalles-contribution-de-linterface\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/tecnaria.com\\\/wp-content\\\/uploads\\\/2015\\\/09\\\/scabra.jpg\",\"datePublished\":\"2016-07-18T13:47:35+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/tecnaria.com\\\/#\\\/schema\\\/person\\\/a05dc69ec1405e951123d18726bcc2e4\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/tecnaria.com\\\/fr\\\/renforcement-des-dalles-contribution-de-linterface\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/tecnaria.com\\\/fr\\\/renforcement-des-dalles-contribution-de-linterface\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/tecnaria.com\\\/fr\\\/renforcement-des-dalles-contribution-de-linterface\\\/#primaryimage\",\"url\":\"https:\\\/\\\/tecnaria.com\\\/wp-content\\\/uploads\\\/2015\\\/09\\\/scabra.jpg\",\"contentUrl\":\"https:\\\/\\\/tecnaria.com\\\/wp-content\\\/uploads\\\/2015\\\/09\\\/scabra.jpg\",\"width\":1023,\"height\":726},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/tecnaria.com\\\/fr\\\/renforcement-des-dalles-contribution-de-linterface\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/tecnaria.com\\\/fr\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Renforcement des dalles : contribution de l’interface\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/tecnaria.com\\\/#website\",\"url\":\"https:\\\/\\\/tecnaria.com\\\/\",\"name\":\"Renforcement planchers en bois, acier et b\u00e9ton\",\"description\":\"Rinforzo solai e connettori per acciaio, legno e calcestruzzo\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/tecnaria.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/tecnaria.com\\\/#\\\/schema\\\/person\\\/a05dc69ec1405e951123d18726bcc2e4\",\"name\":\"Alberto Rosin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/40642ba39b2fe7297b4e52cbecacaf3901392a426fbd482477865ccb3ab3ff46?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/40642ba39b2fe7297b4e52cbecacaf3901392a426fbd482477865ccb3ab3ff46?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/40642ba39b2fe7297b4e52cbecacaf3901392a426fbd482477865ccb3ab3ff46?s=96&d=mm&r=g\",\"caption\":\"Alberto Rosin\"},\"url\":\"https:\\\/\\\/tecnaria.com\\\/fr\\\/author\\\/albros\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Renforcement des dalles : contribution de l'interface - Renforcement planchers en bois, acier et b\u00e9ton","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/tecnaria.com\/fr\/renforcement-des-dalles-contribution-de-linterface\/","og_locale":"fr_FR","og_type":"article","og_title":"Renforcement des dalles : contribution de l'interface - Renforcement planchers en bois, acier et b\u00e9ton","og_description":"Dans le cas du renforcement des dalles, lorsqu’il n’est pas possible d’\u00e9valuer a priori l’apport de r\u00e9sistance offert par la rugosit\u00e9 de la surface \u00e0 relier, l’intervention d’un connecteur devient tr\u00e8s importante. En effet, il est bien connu que le glissement entre les parties composant l’\u00e9l\u00e9ment structurel r\u00e9duit la capacit\u00e9 portante et augmente son aptitude [...]","og_url":"https:\/\/tecnaria.com\/fr\/renforcement-des-dalles-contribution-de-linterface\/","og_site_name":"Renforcement planchers en bois, acier et b\u00e9ton","article_published_time":"2016-07-18T13:47:35+00:00","og_image":[{"width":1023,"height":726,"url":"https:\/\/tecnaria.com\/wp-content\/uploads\/2015\/09\/scabra.jpg","type":"image\/jpeg"}],"author":"Alberto Rosin","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Alberto Rosin","Dur\u00e9e de lecture estim\u00e9e":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/tecnaria.com\/fr\/renforcement-des-dalles-contribution-de-linterface\/#article","isPartOf":{"@id":"https:\/\/tecnaria.com\/fr\/renforcement-des-dalles-contribution-de-linterface\/"},"author":{"name":"Alberto Rosin","@id":"https:\/\/tecnaria.com\/#\/schema\/person\/a05dc69ec1405e951123d18726bcc2e4"},"headline":"Renforcement des dalles : contribution de l’interface","datePublished":"2016-07-18T13:47:35+00:00","mainEntityOfPage":{"@id":"https:\/\/tecnaria.com\/fr\/renforcement-des-dalles-contribution-de-linterface\/"},"wordCount":464,"image":{"@id":"https:\/\/tecnaria.com\/fr\/renforcement-des-dalles-contribution-de-linterface\/#primaryimage"},"thumbnailUrl":"https:\/\/tecnaria.com\/wp-content\/uploads\/2015\/09\/scabra.jpg","articleSection":["Approfondissements Briques et B\u00e9ton"],"inLanguage":"fr-FR"},{"@type":"WebPage","@id":"https:\/\/tecnaria.com\/fr\/renforcement-des-dalles-contribution-de-linterface\/","url":"https:\/\/tecnaria.com\/fr\/renforcement-des-dalles-contribution-de-linterface\/","name":"Renforcement des dalles : contribution de l'interface - Renforcement planchers en bois, acier et b\u00e9ton","isPartOf":{"@id":"https:\/\/tecnaria.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/tecnaria.com\/fr\/renforcement-des-dalles-contribution-de-linterface\/#primaryimage"},"image":{"@id":"https:\/\/tecnaria.com\/fr\/renforcement-des-dalles-contribution-de-linterface\/#primaryimage"},"thumbnailUrl":"https:\/\/tecnaria.com\/wp-content\/uploads\/2015\/09\/scabra.jpg","datePublished":"2016-07-18T13:47:35+00:00","author":{"@id":"https:\/\/tecnaria.com\/#\/schema\/person\/a05dc69ec1405e951123d18726bcc2e4"},"breadcrumb":{"@id":"https:\/\/tecnaria.com\/fr\/renforcement-des-dalles-contribution-de-linterface\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/tecnaria.com\/fr\/renforcement-des-dalles-contribution-de-linterface\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/tecnaria.com\/fr\/renforcement-des-dalles-contribution-de-linterface\/#primaryimage","url":"https:\/\/tecnaria.com\/wp-content\/uploads\/2015\/09\/scabra.jpg","contentUrl":"https:\/\/tecnaria.com\/wp-content\/uploads\/2015\/09\/scabra.jpg","width":1023,"height":726},{"@type":"BreadcrumbList","@id":"https:\/\/tecnaria.com\/fr\/renforcement-des-dalles-contribution-de-linterface\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/tecnaria.com\/fr\/"},{"@type":"ListItem","position":2,"name":"Renforcement des dalles : contribution de l’interface"}]},{"@type":"WebSite","@id":"https:\/\/tecnaria.com\/#website","url":"https:\/\/tecnaria.com\/","name":"Renforcement planchers en bois, acier et b\u00e9ton","description":"Rinforzo solai e connettori per acciaio, legno e calcestruzzo","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/tecnaria.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Person","@id":"https:\/\/tecnaria.com\/#\/schema\/person\/a05dc69ec1405e951123d18726bcc2e4","name":"Alberto Rosin","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/secure.gravatar.com\/avatar\/40642ba39b2fe7297b4e52cbecacaf3901392a426fbd482477865ccb3ab3ff46?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/40642ba39b2fe7297b4e52cbecacaf3901392a426fbd482477865ccb3ab3ff46?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/40642ba39b2fe7297b4e52cbecacaf3901392a426fbd482477865ccb3ab3ff46?s=96&d=mm&r=g","caption":"Alberto Rosin"},"url":"https:\/\/tecnaria.com\/fr\/author\/albros\/"}]}},"_links":{"self":[{"href":"https:\/\/tecnaria.com\/fr\/wp-json\/wp\/v2\/posts\/5108","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tecnaria.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tecnaria.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tecnaria.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/tecnaria.com\/fr\/wp-json\/wp\/v2\/comments?post=5108"}],"version-history":[{"count":1,"href":"https:\/\/tecnaria.com\/fr\/wp-json\/wp\/v2\/posts\/5108\/revisions"}],"predecessor-version":[{"id":5109,"href":"https:\/\/tecnaria.com\/fr\/wp-json\/wp\/v2\/posts\/5108\/revisions\/5109"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tecnaria.com\/fr\/wp-json\/wp\/v2\/media\/7020"}],"wp:attachment":[{"href":"https:\/\/tecnaria.com\/fr\/wp-json\/wp\/v2\/media?parent=5108"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tecnaria.com\/fr\/wp-json\/wp\/v2\/categories?post=5108"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tecnaria.com\/fr\/wp-json\/wp\/v2\/tags?post=5108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}