{"id":88,"date":"2017-05-07T12:34:35","date_gmt":"2017-05-07T12:34:35","guid":{"rendered":"http:\/\/www.tetrasteel.com\/?page_id=88"},"modified":"2017-08-07T07:01:45","modified_gmt":"2017-08-07T07:01:45","slug":"sistema-nodi-sferici-tetrasteel","status":"publish","type":"page","link":"https:\/\/www.tetrasteel.com\/en\/spherical-node-tetrasteel-system\/","title":{"rendered":"Spherical-Node tetrasteel\u00ae System"},"content":{"rendered":"<p><\/p>\n<h2 style=\"text-align: center;\">Steel Space Frames with tetrasteel\u00ae System<\/h2>\n<p>Steel space frames have some interesting characteristics, including an extreme geometry adaptability &#8211; even to complex shapes &#8211; and a very low weight in relation to lights. Such characteristics could be improved thanks to the possibility of optimizing each individual rod sizing.<br \/>\nThe weight saving implies their natural predisposition to be used in earthquake zones thanks to the lower inertial forces induced by the earthquake.<br \/>\nTetrasteel space frames are supported by Tetrasolver software for structural analysis, section verification, rods and nodes optimization, drafting of CAD\/CAM files, and on-site assembly drawings.<br \/>\nA space frame is made up of spherical nodes to which the individual rods of upper and lower members and the diagonal rods are fixed with a screw. Thus, the structure appears as a sequence of square-based tetrahedrons after mounting.<br \/>\nMore specifically, nodes are made by forged steel spheres and suitable for connecting the various rods. Nodes will be drilled and threaded depending on bolt diameters.<br \/>\nThe surface in contact with the rod end will be mechanically leveled. Diameter of <a title=\"nodi sferici delle strutture reticolari spaziali\" href=\"https:\/\/www.tetrasteel.com\/il-sistema-tetrasteel\/nodi-sferici\/\">spheres<\/a> will be sized depending on structural and dimension requirements in relation to loads and structure geometry. Rods will be made by steel tubes for structural uses, and hot-forged cones will be welded to the tube ends.<\/p>\n<div id=\"attachment_480\" style=\"width: 310px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-480\" loading=\"lazy\" class=\"wp-image-480 size-medium\" title=\"nodi sferici strutture reticolari spaziali\" src=\"https:\/\/www.tetrasteel.com\/wp-content\/uploads\/2017\/05\/img-7-300x225.png\" alt=\"strutture reticolari spaziali\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.tetrasteel.com\/wp-content\/uploads\/2017\/05\/img-7-300x225.png 300w, https:\/\/www.tetrasteel.com\/wp-content\/uploads\/2017\/05\/img-7-370x278.png 370w, https:\/\/www.tetrasteel.com\/wp-content\/uploads\/2017\/05\/img-7-768x576.png 768w, https:\/\/www.tetrasteel.com\/wp-content\/uploads\/2017\/05\/img-7.png 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><p id=\"caption-attachment-480\" class=\"wp-caption-text\"><a title=\"Le strutture reticolari spaziali\" href=\"https:\/\/www.tetrasteel.com\/\">Spherical node of tetrasteel system<\/a> for building steel space frames<\/p><\/div>\n<p>Therefore, <strong>tetrasteel<sup>\u00ae<\/sup><\/strong>\u00a0construction system is made up of:<\/p>\n<ul>\n<li><a title=\"aste delle strutture reticolari spaziali\" href=\"https:\/\/www.tetrasteel.com\/il-sistema-tetrasteel\/aste\/\">Rods<\/a> are made by S235\/ S355 steel tubes of circular section; standard diameters range from a minimum size of 48mm (1.89in)to a maximum size of 324mm (12.76in), with variable thicknesses based on the structural element specific need.<\/li>\n<li><a title=\"\" href=\"https:\/\/www.tetrasteel.com\/il-sistema-a-nodi-sferici-tetrasteel\/nodi-sferici\/\">Spherical nodes<\/a> are made of hot-molded C45 steel; standard nodes have a diameter ranging between 70mm (2.76in) and 418mm (16.46in).<\/li>\n<li><a title=\"coni delle strutture reticolari spaziali\" href=\"https:\/\/www.tetrasteel.com\/il-sistema-tetrasteel\/coni\/\">Cones<\/a> are welded to the tube ends, thus enabling to reduce interferences by fixing to spherical nodes (and use smaller spherical nodes, as well).<\/li>\n<\/ul>\n<p>Connection between sphere and rod is ensured by a cheese head screw inside the tube, which fastens in the provided node hole by turning a non-threaded hex nut fixed to the screw with a pin. In compressed rods the nut will ensure the stress transfer between rods and spherical nodes. Bolts, screws and hex nuts will be sized depending on structural and dimension requirements, in relation to loads and structure geometry.<br \/>\nThe <strong>tetrasteel<sup>\u00ae<\/sup><\/strong>\u00a0system enables to build &#8211; thanks to the possibility of individually sizing each element &#8211; very statically efficient and extremely light structures with a great versatility and adaptability to complex geometries. The system is based on a total prefabrication of elements in the workshop and on-site assembly according to an accurate procedure for nodes and rods identification that enables to drastically speed up the on-site work phases.<\/p>\n<p style=\"text-align: center;\"><a title=\"Strutture reticolari spaziali a nodi sferici tetrasteel\" href=\"https:\/\/www.tetrasteel.com\/\">\n\t<div class=\"slideshow_container slideshow_container_style-light\" style=\"height: 300px; \" data-slideshow-id=\"473\" data-style-name=\"style-light\" data-style-version=\"2.3.1\" >\n\n\t\t\t\t\t<div class=\"slideshow_loading_icon\"><\/div>\n\t\t\n\t\t<div class=\"slideshow_content\" style=\"display: none;\">\n\n\t\t\t<div class=\"slideshow_view\">\n\t\t\t\t<div class=\"slideshow_slide slideshow_slide_image\">\n\t\t\t\t\t\t\t\t\t\t\t<img src=\"https:\/\/www.tetrasteel.com\/wp-content\/uploads\/2017\/05\/img-1.png\" alt=\"img 1\" width=\"800\" height=\"600\" \/>\n\t\t\t\t\t\t\t\t\t\t<div class=\"slideshow_description_box slideshow_transparent\">\n\t\t\t\t\t\t<div class=\"slideshow_title\">img 1<\/div>\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\n\t\t\t\t\t\t<div style=\"clear: both;\"><\/div><\/div><div class=\"slideshow_view\">\n\t\t\t\t<div class=\"slideshow_slide slideshow_slide_image\">\n\t\t\t\t\t\t\t\t\t\t\t<img src=\"https:\/\/www.tetrasteel.com\/wp-content\/uploads\/2017\/05\/img-2.png\" alt=\"img 2\" width=\"562\" height=\"600\" \/>\n\t\t\t\t\t\t\t\t\t\t<div class=\"slideshow_description_box slideshow_transparent\">\n\t\t\t\t\t\t<div class=\"slideshow_title\">img 2<\/div>\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\n\t\t\t\t\t\t<div style=\"clear: both;\"><\/div><\/div><div class=\"slideshow_view\">\n\t\t\t\t<div class=\"slideshow_slide slideshow_slide_image\">\n\t\t\t\t\t\t\t\t\t\t\t<img src=\"https:\/\/www.tetrasteel.com\/wp-content\/uploads\/2017\/05\/img-5.png\" alt=\"img 5\" width=\"775\" height=\"600\" \/>\n\t\t\t\t\t\t\t\t\t\t<div class=\"slideshow_description_box slideshow_transparent\">\n\t\t\t\t\t\t<div class=\"slideshow_title\">img 5<\/div>\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\n\t\t\t\t\t\t<div style=\"clear: both;\"><\/div><\/div><div class=\"slideshow_view\">\n\t\t\t\t<div class=\"slideshow_slide slideshow_slide_image\">\n\t\t\t\t\t\t\t\t\t\t\t<img src=\"https:\/\/www.tetrasteel.com\/wp-content\/uploads\/2017\/05\/img-6.png\" alt=\"img 6\" width=\"800\" height=\"600\" \/>\n\t\t\t\t\t\t\t\t\t\t<div class=\"slideshow_description_box slideshow_transparent\">\n\t\t\t\t\t\t<div class=\"slideshow_title\">img 6<\/div>\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\n\t\t\t\t\t\t<div style=\"clear: both;\"><\/div><\/div><div class=\"slideshow_view\">\n\t\t\t\t<div class=\"slideshow_slide slideshow_slide_image\">\n\t\t\t\t\t\t\t\t\t\t\t<img src=\"https:\/\/www.tetrasteel.com\/wp-content\/uploads\/2017\/05\/img-7.png\" alt=\"img 7\" width=\"800\" height=\"600\" \/>\n\t\t\t\t\t\t\t\t\t\t<div class=\"slideshow_description_box slideshow_transparent\">\n\t\t\t\t\t\t<div class=\"slideshow_title\">img 7<\/div>\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\n\t\t\t\t\t\t<div style=\"clear: both;\"><\/div><\/div>\n\t\t<\/div>\n\n\t\t<div class=\"slideshow_controlPanel slideshow_transparent\" style=\"display: none;\"><ul><li class=\"slideshow_togglePlay\" data-play-text=\"Play\" data-pause-text=\"Pause\"><\/li><\/ul><\/div>\n\n\t\t<div class=\"slideshow_button slideshow_previous slideshow_transparent\" role=\"button\" data-previous-text=\"Previous\" style=\"display: none;\"><\/div>\n\t\t<div class=\"slideshow_button slideshow_next slideshow_transparent\" role=\"button\" data-next-text=\"Next\" style=\"display: none;\"><\/div>\n\n\t\t<div class=\"slideshow_pagination\" style=\"display: none;\" data-go-to-text=\"Go to slide\"><div class=\"slideshow_pagination_center\"><\/div><\/div>\n\n\t\t<!-- WordPress Slideshow Version 2.3.1 -->\n\n\t\t\t<\/div>\n\n<\/a><\/p>\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Steel Space Frames with tetrasteel\u00ae System Steel space frames have some interesting characteristics, including an extreme geometry adaptability &#8211; even to complex shapes &#8211; and a very low weight in relation to lights. Such characteristics could be improved thanks to the possibility of optimizing each individual rod sizing. The weight saving implies their natural predisposition [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.7.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Spherical-Node tetrasteel\u00ae System - Space frame structures<\/title>\n<meta name=\"description\" content=\"tetrasteel \u00ae \u00e8 specializzata nella progettazione e produzione di strutture reticolari spaziali in acciaio, utilizzando il sistema a nodi sferici\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tetrasteel.com\/il-sistema-a-nodi-sferici-tetrasteel\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Spherical-Node tetrasteel\u00ae System - 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