{"id":37375,"date":"2026-11-07T15:35:38","date_gmt":"2026-11-07T14:35:38","guid":{"rendered":"https:\/\/starmodul.com\/?post_type=product&#038;p=37375"},"modified":"2026-11-07T15:51:39","modified_gmt":"2026-11-07T14:51:39","slug":"madre-gran-omega","status":"publish","type":"product","link":"https:\/\/starmodul.com\/pt-pt\/madre-gran-omega\/","title":{"rendered":"Madre Gran Omega em a\u00e7o galvanizado para coberturas e fachadas"},"content":{"rendered":"<div class=\"sm-omg\">\n<style>.sm-omg-q{font:600 18px\/1.3 Barlow,system-ui,sans-serif;color:#0D2148}.sm-omg-wrap{margin:0 0 10px}.sm-omg-chips{display:flex;flex-wrap:wrap;gap:6px;margin:12px 0 4px;padding:0;border:0}.sm-omg-chip{font:600 14px\/1 Barlow,system-ui,sans-serif;min-height:40px;padding:0 12px;border-radius:999px;border:1px solid #d5dbe5;background:#fff;color:#0D2148;cursor:pointer;transition:background-color .15s,color .15s,border-color 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td{background:#f7f9fb}.sm-omg-note{font-size:14px;color:#4a5568}.sm-omg-fig{margin:14px 0;max-width:560px}.sm-omg-fig img{display:block;width:100%;height:auto;border-radius:10px}.sm-omg-fig figcaption{font-size:13px;color:#4a5568;margin-top:6px}<\/style>\n<p><script>\/* sm-omg: visor 3D de la correa (model-viewer) *\/(function(C){function F(k){return C.u+k.replace(\".\",\"-\")+\".glb\"}function go(){if(document.querySelector(\".sm-omg-wrap\"))return;var g=document.querySelector(\"body.single-product .woocommerce-product-gallery\");if(!g)return;var w=document.createElement(\"div\");w.className=\"sm-omg-wrap\";var b=document.createElement(\"div\");b.className=\"sm-3d sm-pdp-3d\";var mv=document.createElement(\"model-viewer\");var a={src:F(C.d[C.def][0]),poster:C.p,alt:C.t.alt,\"camera-controls\":\"\",\"disable-zoom\":\"\",\"touch-action\":\"pan-y\",\"rotation-per-second\":\"16deg\",\"camera-orbit\":\"40deg 64deg 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go()})({\"u\":\"\/wp-content\/uploads\/2026\/11\/correa-gran-omega-\",\"p\":\"\/wp-content\/uploads\/2026\/11\/correa-gran-omega-acero-galvanizado.webp\",\"d\":[[\"50x1.5\",\"\u03a950 \u00d7 1,5\",\"54,0\",\"2,43\"],[\"100x1.5\",\"\u03a9100 \u00d7 1,5\",\"100,0\",\"3,45\"],[\"150x1.5\",\"\u03a9150 \u00d7 1,5\",\"145,5\",\"4,84\"],[\"200x1.5\",\"\u03a9200 \u00d7 1,5\",\"188,6\",\"6,27\"],[\"200x2.0\",\"\u03a9200 \u00d7 2,0\",\"189,1\",\"8,36\"],[\"250x2.0\",\"\u03a9250 \u00d7 2,0\",\"225,9\",\"9,73\"],[\"250x2.5\",\"\u03a9250 \u00d7 2,5\",\"226,4\",\"12,16\"],[\"300x2.5\",\"\u03a9300 \u00d7 2,5\",\"279,2\",\"14,60\"],[\"300x3.0\",\"\u03a9300 \u00d7 3,0\",\"279,7\",\"17,52\"]],\"t\":{\"alt\":\"Madre Gran Omega em 3D\",\"hint\":\"Arraste para rodar\",\"chips\":\"Sec\u00e7\u00e3o da madre\",\"q\":\"Pre\u00e7o sob or\u00e7amento, consoante a sec\u00e7\u00e3o e os metros\",\"cap\":\"{s} \u00b7 altura {H} mm \u00b7 {G} kg\/m \u00b7 tro\u00e7o de 1 m\"},\"def\":4});<\/script><\/div>\n<p>A madre Gran Omega \u00e9 um perfil de a\u00e7o galvanizado enformado a frio para as madres de cobertura e de fachada de pavilh\u00f5es e estruturas met\u00e1licas. Tem furos a cada 50 mm nas almas e nas abas, por isso aparafusa-se diretamente aos p\u00f3rticos, sem cantoneiras nem soldadura. Existe em 9 sec\u00e7\u00f5es, de \u03a950 a \u03a9300, e pode rodar cada uma em 3D no visualizador desta p\u00e1gina.<\/p>\n<h2>Sec\u00e7\u00f5es e propriedades<\/h2>\n<figure class=\"sm-omg-fig\"><img loading=\"lazy\" src=\"\/wp-content\/uploads\/2026\/11\/correa-gran-omega-secciones-medidas.webp\" width=\"1200\" height=\"1200\" alt=\"As 9 sec\u00e7\u00f5es da madre Gran Omega \u00e0 mesma escala, de \u03a950 a \u03a9300, com a altura e o peso por metro\" loading=\"lazy\" decoding=\"async\" title=\"\"><figcaption>As 9 sec\u00e7\u00f5es \u00e0 mesma escala. H: altura da madre.<\/figcaption><\/figure>\n<div class=\"sm-omg-tw\">\n<table>\n<thead>\n<tr>\n<th scope=\"col\">Sec\u00e7\u00e3o<\/th>\n<th scope=\"col\">Altura H (mm)<\/th>\n<th scope=\"col\">Largura (mm)<\/th>\n<th scope=\"col\">Espessura (mm)<\/th>\n<th scope=\"col\">Peso (kg\/m)<\/th>\n<th scope=\"col\">\u00c1rea (mm\u00b2)<\/th>\n<th scope=\"col\">Iy (cm\u2074)<\/th>\n<th scope=\"col\">Wy (cm\u00b3)<\/th>\n<th scope=\"col\">Iz (cm\u2074)<\/th>\n<th scope=\"col\">Wz (cm\u00b3)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u03a950 \u00d7 1,5<\/td>\n<td>54,0<\/td>\n<td>130,8<\/td>\n<td>1,5<\/td>\n<td>2,43<\/td>\n<td>307<\/td>\n<td>13,7<\/td>\n<td>4,8<\/td>\n<td>37,6<\/td>\n<td>5,8<\/td>\n<\/tr>\n<tr>\n<td>\u03a9100 \u00d7 1,5<\/td>\n<td>100,0<\/td>\n<td>130,3<\/td>\n<td>1,5<\/td>\n<td>3,45<\/td>\n<td>441<\/td>\n<td>59,5<\/td>\n<td>11,3<\/td>\n<td>47,5<\/td>\n<td>7,3<\/td>\n<\/tr>\n<tr>\n<td>\u03a9150 \u00d7 1,5<\/td>\n<td>145,5<\/td>\n<td>183,0<\/td>\n<td>1,5<\/td>\n<td>4,84<\/td>\n<td>625<\/td>\n<td>178,6<\/td>\n<td>24,8<\/td>\n<td>157,2<\/td>\n<td>17,2<\/td>\n<\/tr>\n<tr>\n<td>\u03a9200 \u00d7 1,5<\/td>\n<td>188,6<\/td>\n<td>241,2<\/td>\n<td>1,5<\/td>\n<td>6,27<\/td>\n<td>791<\/td>\n<td>373,4<\/td>\n<td>39,4<\/td>\n<td>345,1<\/td>\n<td>28,6<\/td>\n<\/tr>\n<tr>\n<td>\u03a9200 \u00d7 2,0<\/td>\n<td>189,1<\/td>\n<td>241,2<\/td>\n<td>2,0<\/td>\n<td>8,36<\/td>\n<td>1054<\/td>\n<td>479,2<\/td>\n<td>49,7<\/td>\n<td>448,2<\/td>\n<td>37,2<\/td>\n<\/tr>\n<tr>\n<td>\u03a9250 \u00d7 2,0<\/td>\n<td>225,9<\/td>\n<td>288,9<\/td>\n<td>2,0<\/td>\n<td>9,73<\/td>\n<td>1239<\/td>\n<td>818,5<\/td>\n<td>71,3<\/td>\n<td>827,8<\/td>\n<td>57,3<\/td>\n<\/tr>\n<tr>\n<td>\u03a9250 \u00d7 2,5<\/td>\n<td>226,4<\/td>\n<td>288,9<\/td>\n<td>2,5<\/td>\n<td>12,16<\/td>\n<td>1538<\/td>\n<td>965,5<\/td>\n<td>85,6<\/td>\n<td>1018,0<\/td>\n<td>70,5<\/td>\n<\/tr>\n<tr>\n<td>\u03a9300 \u00d7 2,5<\/td>\n<td>279,2<\/td>\n<td>311,3<\/td>\n<td>2,5<\/td>\n<td>14,60<\/td>\n<td>1843<\/td>\n<td>1784,6<\/td>\n<td>128,1<\/td>\n<td>1353,9<\/td>\n<td>87,0<\/td>\n<\/tr>\n<tr>\n<td>\u03a9300 \u00d7 3,0<\/td>\n<td>279,7<\/td>\n<td>311,8<\/td>\n<td>3,0<\/td>\n<td>17,52<\/td>\n<td>2224<\/td>\n<td>2086,5<\/td>\n<td>145,8<\/td>\n<td>1587,0<\/td>\n<td>102,7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"sm-omg-note\">Propriedades da sec\u00e7\u00e3o bruta, sem descontar os furos. Iy e Wy: flex\u00e3o com a carga perpendicular \u00e0 cobertura; Iz e Wz: flex\u00e3o no plano da cobertura. Nas sobreposi\u00e7\u00f5es a sec\u00e7\u00e3o \u00e9 dupla e tem o dobro da in\u00e9rcia (por exemplo, a \u03a9200 \u00d7 2,0 passa de 479,2 para 958,5 cm\u2074).<\/p>\n<h2>Como se monta<\/h2>\n<figure class=\"sm-omg-fig\"><img loading=\"lazy\" src=\"\/wp-content\/uploads\/2026\/11\/correa-gran-omega-detalle-taladros.webp\" width=\"1000\" height=\"1000\" alt=\"Pormenor da madre Gran Omega com furos ovalizados nas almas e nas abas inferiores a cada 50 mm\" loading=\"lazy\" decoding=\"async\" title=\"\"><figcaption>Furos ovalizados nas almas e nas abas inferiores, a cada 50 mm ao longo de toda a madre.<\/figcaption><\/figure>\n<ul>\n<li><strong>Aparafusada diretamente aos p\u00f3rticos:<\/strong> apoia-se nos pilares e nas asnas e fixa-se com parafusos, sem cantoneiras nem soldadura.<\/li>\n<li><strong>Furos a cada 50 mm<\/strong> nas almas e nas abas inferiores: furos ovalizados de 12 \u00d7 14 mm para parafusos M10 da classe 8.8; na \u03a9300, furos de 14 mm para M10 ou M12.<\/li>\n<li><strong>Sobreposi\u00e7\u00e3o por encaixe:<\/strong> nos apoios interm\u00e9dios uma madre encaixa dentro da seguinte e aparafusam-se juntas; assim a madre trabalha como uma viga cont\u00ednua.<\/li>\n<li><strong>Mais v\u00e3o e mais afastamento:<\/strong> permite vencer grandes v\u00e3os entre p\u00f3rticos e afastar mais as madres.<\/li>\n<\/ul>\n<h2>O que poupa<\/h2>\n<p>Com a madre Gran Omega deixam de ser necess\u00e1rios:<\/p>\n<ul>\n<li>cantoneiras de apoio das madres;<\/li>\n<li>tirantes entre madres;<\/li>\n<li>vigas de refor\u00e7o nas fachadas;<\/li>\n<li>chapa de cumeeira interior.<\/li>\n<\/ul>\n<h2>Material e normas<\/h2>\n<ul>\n<li>A\u00e7o estrutural S350GD com revestimento de zinco Z275, segundo a EN 10346.<\/li>\n<li>Marca\u00e7\u00e3o CE segundo a EN 1090-1, classe de execu\u00e7\u00e3o EXC2.<\/li>\n<li>Rea\u00e7\u00e3o ao fogo A1: o a\u00e7o n\u00e3o \u00e9 combust\u00edvel.<\/li>\n<\/ul>\n<h2>Onde se utiliza<\/h2>\n<p>Madres de cobertura e de fachada para pavilh\u00f5es industriais e agr\u00edcolas, armaz\u00e9ns, alpendres e estruturas para pain\u00e9is solares, com qualquer revestimento (painel sandu\u00edche ou chapa) e sobre estrutura de a\u00e7o, madeira ou bet\u00e3o. Se tamb\u00e9m precisa da estrutura, veja os nossos <a href=\"https:\/\/starmodul.com\/pt-pt\/pavilhoes-ipe-aparafusados\/\">pavilh\u00f5es IPE aparafusados<\/a>.<\/p>\n<h2>O que precisamos para o or\u00e7amento<\/h2>\n<ol>\n<li>O afastamento entre p\u00f3rticos e o n\u00famero de v\u00e3os.<\/li>\n<li>A largura e a inclina\u00e7\u00e3o da cobertura, ou a altura da fachada.<\/li>\n<li>O revestimento que vai usar (painel sandu\u00edche, chapa\u2026).<\/li>\n<li>A localiza\u00e7\u00e3o da obra, para ter em conta o vento e a neve da zona.<\/li>\n<\/ol>\n<p>Com estes dados ajudamos a escolher a sec\u00e7\u00e3o e a espessura e preparamos o seu or\u00e7amento.<\/p>\n<p><a href=\"https:\/\/starmodul.com\/pt-pt\/contacto\/\">Pe\u00e7a or\u00e7amento<\/a> \u00b7 WhatsApp <a href=\"https:\/\/wa.me\/34609601119\" target=\"_blank\" rel=\"noopener\">+34 609 601 119<\/a> \u00b7 Telefone <a href=\"tel:+34973228164\">+34 973 228 164<\/a><\/p>\n<h2>Perguntas frequentes<\/h2>\n<h3>\u00c9 preciso soldar?<\/h3>\n<p>N\u00e3o. A madre aparafusa-se aos p\u00f3rticos e, nas sobreposi\u00e7\u00f5es, uma madre \u00e0 outra.<\/p>\n<h3>Com que parafusos se fixa?<\/h3>\n<p>Com parafusos M10 da classe 8.8 nos furos ovalizados de 12 \u00d7 14 mm. Na \u03a9300, com M10 ou M12 em furos de 14 mm.<\/p>\n<h3>Que sec\u00e7\u00e3o preciso?<\/h3>\n<p>Depende do afastamento entre p\u00f3rticos, do afastamento entre madres e das cargas de vento e neve da zona. Envie-nos os dados e ajudamos a escolher.<\/p>\n<h3>Serve para fachada?<\/h3>\n<p>Sim. Utiliza-se como madre de cobertura e como madre de fachada.<\/p>\n<h3>Quanto custa?<\/h3>\n<p>Depende da sec\u00e7\u00e3o, da espessura e dos metros. Pe\u00e7a or\u00e7amento sem compromisso por WhatsApp ou na p\u00e1gina de contacto.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><strong>Pre\u00e7o consoante a sec\u00e7\u00e3o e os metros \u00b7 Pe\u00e7a or\u00e7amento.<\/strong> Madre em a\u00e7o galvanizado para coberturas e fachadas, em 9 sec\u00e7\u00f5es de \u03a950 a \u03a9300, furada a cada 50 mm para aparafusar diretamente aos p\u00f3rticos.<\/p>\n<p><a href=\"https:\/\/starmodul.com\/pt-pt\/contacto\/\">Pe\u00e7a or\u00e7amento<\/a> \u00b7 WhatsApp <a href=\"https:\/\/wa.me\/34609601119\">+34 609 601 119<\/a> \u00b7 Telefone <a href=\"tel:+34973228164\">+34 973 228 164<\/a><\/p>\n","protected":false},"featured_media":37376,"template":"","meta":[],"product_brand":[],"product_cat":[161],"product_tag":[],"class_list":["post-37375","product","type-product","status-publish","has-post-thumbnail","product_cat-acessorios-estruturas-metalicas","first","instock","taxable","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/starmodul.com\/pt-pt\/wp-json\/wp\/v2\/product\/37375","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/starmodul.com\/pt-pt\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/starmodul.com\/pt-pt\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":3,"href":"https:\/\/starmodul.com\/pt-pt\/wp-json\/wp\/v2\/product\/37375\/revisions"}],"predecessor-version":[{"id":37401,"href":"https:\/\/starmodul.com\/pt-pt\/wp-json\/wp\/v2\/product\/37375\/revisions\/37401"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/starmodul.com\/pt-pt\/wp-json\/wp\/v2\/media\/37376"}],"wp:attachment":[{"href":"https:\/\/starmodul.com\/pt-pt\/wp-json\/wp\/v2\/media?parent=37375"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/starmodul.com\/pt-pt\/wp-json\/wp\/v2\/product_brand?post=37375"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/starmodul.com\/pt-pt\/wp-json\/wp\/v2\/product_cat?post=37375"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/starmodul.com\/pt-pt\/wp-json\/wp\/v2\/product_tag?post=37375"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}