{"id":1163,"date":"2014-09-23T08:13:51","date_gmt":"2014-09-23T08:13:51","guid":{"rendered":"https:\/\/www.prensoland.com\/fr\/machinery-for-manufacturing-prestressed-concrete-equipment-for-lifting-and-transporting\/"},"modified":"2016-12-05T14:05:02","modified_gmt":"2016-12-05T13:05:02","slug":"machinerie-pour-fabriquer-des-poutrelles-et-des-dalles-en-beton-precontraint","status":"publish","type":"post","link":"https:\/\/www.prensoland.com\/fr\/machinerie-pour-fabriquer-des-poutrelles-et-des-dalles-en-beton-precontraint\/","title":{"rendered":"Machinerie pour fabriquer des poutrelles et des dalles en b\u00e9ton pr\u00e9contraint"},"content":{"rendered":"<div><strong>Dans l\u2019installation de pr\u00e9contraints pour fabriquer des poutrelles et des dalles en b\u00e9ton pr\u00e9contraint, il est indispensable que l&#8217;int\u00e9rieur de l\u2019entrep\u00f4t dispose de ponts roulants appropri\u00e9s afin d&#8217;effectuer les t\u00e2ches de levage et de transport. \u00a0<\/strong><\/div>\n<div><\/div>\n<div>En effectuant le projet d&#8217;installation, il faudra analyser et \u00e9tudier \u00e0 fond les op\u00e9rations \u00e0 mener par les \u00e9quipements de transport, qui seront les suivantes :<\/div>\n<div><\/div>\n<div>&#8211; Levage et transport pour le changement de piste des diff\u00e9rentes machines : la machine \u00e0 mouler, la d\u00e9coupeuse, la machine \u00e0 nettoyer les pistes, etc.<\/div>\n<div>&#8211; Le transport du b\u00e9ton depuis le groupe de malaxage vers la machine \u00e0 mouler.<\/div>\n<div>&#8211; Extraction, transport et gerbage des pi\u00e8ces fabriqu\u00e9es, au moyen de pinces ou d&#8217;autres syst\u00e8mes.<\/div>\n<div>&#8211; Travaux auxiliaires : transports et d\u00e9placements des rouleaux en armatures dans les bobineuses et cages bobineuse.<\/div>\n<div><\/div>\n<div>Ainsi et en fonction des travaux que doit effectuer le pont roulant et du niveau d&#8217;automatisation de l&#8217;usine, il faudra d\u00e9terminer :<\/div>\n<div><\/div>\n<div>&#8211; Le nombre de ponts roulants n\u00e9cessaires.<\/div>\n<div>&#8211; Le placement : \u00e0 un ou deux niveaux.<\/div>\n<div>&#8211; La vitesse o\u00f9 les vitesses (rapide et lente)<\/div>\n<div>&#8211; Le trajet : s&#8217;il doit se limiter \u00e0 la longueur de l\u2019entrep\u00f4t ou s&#8217;il doit se prolonger vers l&#8217;ext\u00e9rieur pour des op\u00e9rations de stockage.<\/div>\n<div>&#8211; La hauteur ou le gabarit afin de permettre le passage des machines et des cubilots de transport de b\u00e9ton vers la machine \u00e0 mouler.<\/div>\n<div>&#8211; La capacit\u00e9 ad\u00e9quate de levage de charges.<\/div>\n<div>&#8211; Le syst\u00e8me de contr\u00f4le, il peut se faire par console, contr\u00f4le semi-automatique, par radio contr\u00f4le, etc.<\/div>\n<div><\/div>\n<div>Par ailleurs, il est important que chaque usine de pr\u00e9contraints poss\u00e8de les \u00e9quipements de levage et de transport appropri\u00e9s \u00e0 leur production. Une mauvaise planification provoque g\u00e9n\u00e9ralement des temps morts inutiles, des augmentations de la main-d\u2019\u0153uvre et des retards dans la production ; ce sont des effets n\u00e9gatifs et la plupart du temps ils sont difficilement rectifiables.<\/div>\n<div><\/div>\n<div>Au cours du transport du b\u00e9ton, il est \u00e9galement essentiel d&#8217;\u00e9viter les transferts de b\u00e9ton dans la mesure du possible, les secousses dans le transport ou les d\u00e9chargements par vibrations, \u00e9tant donn\u00e9 que ces op\u00e9rations peuvent produire des d\u00e9sagr\u00e9gations, l\u2019assise ou des compactages pr\u00e9matur\u00e9s du b\u00e9ton.<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Dans l\u2019installation de pr\u00e9contraints pour fabriquer des poutrelles et des [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":1160,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":{"0":"post-1163","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-non-classifiee","9":"post-with-thumbnail","10":"post-with-thumbnail-icon"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Machinerie pour fabriquer des poutrelles et des dalles en b\u00e9ton pr\u00e9contraint<\/title>\n<meta name=\"description\" content=\"Dans l\u2019installation de pr\u00e9contraints pour fabriquer des poutrelles et des dalles en b\u00e9ton pr\u00e9contraint\" \/>\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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