{"id":38359,"date":"2024-02-05T10:14:33","date_gmt":"2024-02-05T09:14:33","guid":{"rendered":"https:\/\/desarrollo.ypsossafety.com\/escada-com-plataforma-une-en-iso-14122-3\/"},"modified":"2026-10-30T00:59:56","modified_gmt":"2026-10-29T23:59:56","slug":"escada-com-plataforma-une-en-iso-14122-3","status":"publish","type":"post","link":"https:\/\/desarrollo.ypsossafety.com\/pt\/escada-com-plataforma-une-en-iso-14122-3\/","title":{"rendered":"Escada com plataforma: UNE EN ISO 14122-3"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">No artigo seguinte vamos continuar a analisar a Norma <a href=\"https:\/\/ypsossafety.com\/norma-une-en-iso-14122\/\" target=\"_blank\" rel=\"noreferrer noopener\">UNE EN ISO 14122<\/a>, aprofundando a parte 3, que trata de \u201cEscadas, escadas de degraus e guarda-corpos\u201d e, em concreto, vamos centrar-nos na escada com plataforma.<\/p>\n\n<p class=\"wp-block-paragraph\">Antes de entrarmos no assunto, queremos destacar dois pormenores:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>A Norma UNE EN ISO 14122 \u00e9 uma norma do tipo B, com as implica\u00e7\u00f5es que isso acarreta.<\/li>\n\n\n\n<li>Este cap\u00edtulo da Norma deve ser utilizado em conjunto com o cap\u00edtulo 1, para definir os requisitos de escadas, escadas de degraus e guarda-corpos.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\"><strong>Conce\u00e7\u00e3o de uma escada com plataforma<\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">Na hora de conceber uma escada com plataforma, \u00e9 imprescind\u00edvel ter em conta os requisitos que esta norma estabelece relativamente \u00e0 constru\u00e7\u00e3o e aos materiais a utilizar, bem como \u00e0 conce\u00e7\u00e3o e \u00e0 estrutura dos <a href=\"https:\/\/ypsossafety.com\/descansillos-moviles\/\" target=\"_blank\" rel=\"noreferrer noopener\">degraus<\/a>.<\/p>\n\n<p class=\"wp-block-paragraph\">As escadas devem ser concebidas e constru\u00eddas de modo a serem capazes de suportar as condi\u00e7\u00f5es de utiliza\u00e7\u00e3o previs\u00edveis a que v\u00e3o estar expostas e, por extens\u00e3o, os materiais com que s\u00e3o fabricadas.<\/p>\n\n<p class=\"wp-block-paragraph\">Em todo o caso, para a conce\u00e7\u00e3o de uma escada com plataforma dever-se-\u00e1 ter em conta, por um lado, os dados antropom\u00e9tricos dispon\u00edveis e, por outro, os riscos gerados pela queda de objetos atrav\u00e9s das aberturas dos degraus.<\/p>\n\n<p class=\"wp-block-paragraph\">Quando falamos de dados antropom\u00e9tricos, referimo-nos ao estudo quantitativo das caracter\u00edsticas f\u00edsicas do ser humano. A antropometria \u00e9 uma disciplina fundamental no \u00e2mbito laboral, tanto em rela\u00e7\u00e3o \u00e0 seguran\u00e7a como \u00e0 ergonomia.<\/p>\n\n<p class=\"wp-block-paragraph\">A antropometria permite criar um ambiente de trabalho adequado, possibilitando uma correta conce\u00e7\u00e3o dos equipamentos e a sua adequada distribui\u00e7\u00e3o, permitindo configurar as caracter\u00edsticas geom\u00e9tricas do posto, um bom desenho do mobili\u00e1rio, das ferramentas manuais, dos equipamentos de prote\u00e7\u00e3o individual, etc.<\/p>\n\n<p class=\"wp-block-paragraph\">No que respeita aos riscos gerados pela queda de objetos atrav\u00e9s das aberturas dos degraus, dever-se-\u00e1 rever o estabelecido na <a href=\"https:\/\/ypsossafety.com\/pasarelas-de-cruce-une-en-iso-14122-2\/\" target=\"_blank\" rel=\"noreferrer noopener\">Norma UNE ISO 14122-2:2016.<\/a><\/p>\n\n<h2 class=\"wp-block-heading\"><strong>Resist\u00eancia de uma <a href=\"https:\/\/ypsossafety.com\/escalera-vertical\/\" target=\"_blank\" rel=\"noreferrer noopener\">escada <\/a>com plataforma<\/strong><\/h2>\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"577\" height=\"1024\" src=\"https:\/\/ypsossafety.com\/wp-content\/uploads\/2024\/01\/escalera-lateral-rebrik-ouigo-2-577x1024.jpeg\" alt=\"escada com plataforma instalada num pavilh&#xE3;o\" class=\"wp-image-12313\" style=\"width:359px;height:auto\" srcset=\"https:\/\/desarrollo.ypsossafety.com\/wp-content\/uploads\/2024\/01\/escalera-lateral-rebrik-ouigo-2-577x1024.jpeg 577w, https:\/\/desarrollo.ypsossafety.com\/wp-content\/uploads\/2024\/01\/escalera-lateral-rebrik-ouigo-2-169x300.jpeg 169w, https:\/\/desarrollo.ypsossafety.com\/wp-content\/uploads\/2024\/01\/escalera-lateral-rebrik-ouigo-2-768x1364.jpeg 768w, https:\/\/desarrollo.ypsossafety.com\/wp-content\/uploads\/2024\/01\/escalera-lateral-rebrik-ouigo-2-865x1536.jpeg 865w, https:\/\/desarrollo.ypsossafety.com\/wp-content\/uploads\/2024\/01\/escalera-lateral-rebrik-ouigo-2-600x1065.jpeg 600w, https:\/\/desarrollo.ypsossafety.com\/wp-content\/uploads\/2024\/01\/escalera-lateral-rebrik-ouigo-2-64x114.jpeg 64w, https:\/\/desarrollo.ypsossafety.com\/wp-content\/uploads\/2024\/01\/escalera-lateral-rebrik-ouigo-2.jpeg 901w\" sizes=\"(max-width: 577px) 100vw, 577px\" \/><\/figure>\n<\/div>\n<p class=\"wp-block-paragraph\">A estrutura e os degraus da escada com plataforma dever\u00e3o ser concebidos para resistir satisfatoriamente \u00e0s cargas a que previsivelmente estar\u00e3o sujeitos.<\/p>\n\n<p class=\"wp-block-paragraph\">As cargas n\u00e3o ponderadas aplic\u00e1veis utilizadas para a estrutura das escadas ou escadas de degraus no \u00e2mbito industrial podem variar. As cargas n\u00e3o ponderadas esperadas devem ser definidas para cada aplica\u00e7\u00e3o.<\/p>\n\n<p class=\"wp-block-paragraph\">No m\u00ednimo, devem aplicar-se os seguintes pressupostos para cargas n\u00e3o ponderadas nos c\u00e1lculos a considerar, mas podem ser necess\u00e1rios valores mais elevados. Devem aplicar-se valores mais elevados quando for previs\u00edvel uma carga maior: para uma circula\u00e7\u00e3o pouco densa sem carga de 1,5 KN\/m<sup>2<\/sup> e para as restantes hip\u00f3teses 5 kN\/m<sup>2<\/sup>.<\/p>\n\n<p class=\"wp-block-paragraph\">Por outro lado, os degraus devem resistir \u00e0s seguintes cargas n\u00e3o ponderadas:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Se a largura livre for inferior a 1200 mm, ent\u00e3o a carga de 1,5 KN\/m<sup>2 <\/sup> deve ser repartida sobre uma superf\u00edcie de 100 mm x 100 mm, em que um limite \u00e9 o bordo do focinho do degrau, aplicada a meio da largura da escada.<\/li>\n\n\n\n<li>Se a largura livre for superior a 1200 mm, ent\u00e3o devem ser repartidas simultaneamente duas cargas de 1,5 KN\/m<sup>2 <\/sup>. Cada uma delas numa superf\u00edcie de 100 mm x 100 mm, nos pontos mais desfavor\u00e1veis, espa\u00e7ados a intervalos de 600 mm, em que um limite \u00e9 o bordo do focinho do degrau.<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">A flecha entre a estrutura que suporta os degraus e os degraus sujeitos \u00e0 carga n\u00e3o ponderada n\u00e3o deve ultrapassar o menor de qualquer destes valores: 1\/300 do v\u00e3o ou 6 mm.<\/p>\n\n<h2 class=\"wp-block-heading\"><strong>Requisitos da norma EN 14122-3<\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">A Norma UNE 14122-3 estabelece tamb\u00e9m uma s\u00e9rie de requisitos <strong>espec\u00edficos<\/strong> aplic\u00e1veis \u00e0s escadas, que resumiremos de seguida:<\/p>\n\n<ol class=\"wp-block-list\" style=\"list-style-type:lower-alpha\">\n<li>O cobertor (g) e o espelho (h) devem cumprir a seguinte f\u00f3rmula 600 \u2264 g + 2h \u2264 660 em mm<\/li>\n\n\n\n<li>O cobertor (dist\u00e2ncia t menos r) deve situar-se entre 210 mm e 310 mm<\/li>\n\n\n\n<li>A sali\u00eancia, r, do degrau deve ser \u2265 10 mm e aplica-se igualmente aos patamares<\/li>\n\n\n\n<li>No mesmo lan\u00e7o, o espelho, h, deve ser constante. Caso n\u00e3o seja poss\u00edvel, o espelho do primeiro degrau do lan\u00e7o h pode ser reduzido no m\u00e1ximo em 15 %.<\/li>\n\n\n\n<li>O degrau mais alto deve estar ao mesmo n\u00edvel que o patamar<\/li>\n\n\n\n<li>A altura livre, e, deve ser, no m\u00ednimo, de 2300 mm<\/li>\n\n\n\n<li>A largura livre da escada, w, deve ser, no m\u00ednimo, de 800 mm. Se a escada for habitualmente utilizada por v\u00e1rias pessoas em simult\u00e2neo, a largura deve ser aumentada para 1000 mm; para lan\u00e7os individuais com altura inferior a 1500 mm, a largura livre, w, pode ser reduzida de 600 mm para 500 mm. Se a utiliza\u00e7\u00e3o for ocasional, poder\u00e1 reduzir-se a largura livre, w, de 800 mm para 600 mm.<\/li>\n\n\n\n<li>No caso de um \u00fanico lan\u00e7o reto, a altura da escada n\u00e3o deve exceder 4000 mm.<\/li>\n<\/ol>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"398\" height=\"140\" src=\"https:\/\/ypsossafety.com\/wp-content\/uploads\/2024\/01\/diseno-escalera-con-plataforma.png\" alt=\"desenho de uma escada com plataforma\" class=\"wp-image-12317\" srcset=\"https:\/\/desarrollo.ypsossafety.com\/wp-content\/uploads\/2024\/01\/diseno-escalera-con-plataforma.png 398w, https:\/\/desarrollo.ypsossafety.com\/wp-content\/uploads\/2024\/01\/diseno-escalera-con-plataforma-300x106.png 300w, https:\/\/desarrollo.ypsossafety.com\/wp-content\/uploads\/2024\/01\/diseno-escalera-con-plataforma-64x23.png 64w\" sizes=\"(max-width: 398px) 100vw, 398px\" \/><figcaption class=\"wp-element-caption\"><em>Pormenor da posi\u00e7\u00e3o do degrau mais alto<\/em><\/figcaption><\/figure>\n<\/div>\n<p class=\"wp-block-paragraph\">Em pr\u00f3ximos artigos falaremos do procedimento que a norma estabelece para poder verificar o cumprimento dos requisitos de seguran\u00e7a das escadas, tema de grande import\u00e2ncia sobretudo para os fabricantes destes equipamentos.<\/p>\n\n<p class=\"wp-block-paragraph\">Esperamos que este artigo tenha sido \u00fatil para compreender os requisitos que se estabelecem para as escadas quanto \u00e0 conce\u00e7\u00e3o e ao fabrico. Se necessita de mais informa\u00e7\u00e3o sobre escadas, tipos, aplica\u00e7\u00f5es, etc., n\u00e3o hesite em contactar-nos.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>No artigo seguinte vamos continuar a analisar a Norma UNE EN ISO 14122, aprofundando a parte 3, que trata de \u201cEscadas, escadas de degraus e guarda-corpos\u201d e, em concreto, vamos centrar-nos na escada com plataforma. Antes de entrarmos no assunto, queremos destacar dois pormenores: Conce\u00e7\u00e3o de uma escada com plataforma Na hora de conceber uma [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":38364,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_breadcrumb_parent_id":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[165,162],"tags":[],"class_list":["post-38359","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-escadas-de-seguranca","category-seguranca-e-saude-no-trabalho","grve-entry-item","grve-blog-item"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - 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