{"id":29128,"date":"2026-01-30T12:21:00","date_gmt":"2026-01-30T11:21:00","guid":{"rendered":"https:\/\/biblus.accasoftware.com\/ptb\/?p=29128"},"modified":"2026-01-30T12:21:05","modified_gmt":"2026-01-30T11:21:05","slug":"como-calcular-a-espessura-da-laje-de-piso","status":"publish","type":"post","link":"https:\/\/biblus.accasoftware.com\/ptb\/como-calcular-a-espessura-da-laje-de-piso\/","title":{"rendered":"Como calcular a espessura da laje de piso"},"content":{"rendered":"<p class=\"sommario\">Calcular a espessura da laje de piso \u00e9 essencial j\u00e1 na fase de pr\u00e9-dimensionamento. Aqui est\u00e3o as espessuras com base nos principais tipos<\/p>\n<p><!--more--><\/p>\n<p>Qu\u00e3o espesso \u00e9 um piso? Qual \u00e9 a espessura m\u00ednima de um piso em concreto armado?<\/p>\n<p>Se voc\u00ea deseja ter uma ideia geral sobre o pr\u00e9-dimensionamento de um piso, leia este artigo. Essas informa\u00e7\u00f5es podem ajud\u00e1-lo na fase inicial do projeto para avaliar rapidamente a viabilidade da interven\u00e7\u00e3o, os custos aproximados, o volume e a altura total do edif\u00edcio, etc.<\/p>\n<p>Se, por outro lado, voc\u00ea j\u00e1 est\u00e1 mais avan\u00e7ado no projeto e precisa calcular com precis\u00e3o a espessura do piso de acordo com as prescri\u00e7\u00f5es normativas e obter toda a documenta\u00e7\u00e3o necess\u00e1ria para autorizar a interven\u00e7\u00e3o, voc\u00ea deve necessariamente usar um <a class=\"textualLink_edilus\" href=\"https:\/\/www.accasoftware.com\/ptb\/software-calculo-estrutural\" target=\"_blank\" rel=\"noopener\">software de c\u00e1lculo estrutural<\/a>.<\/p>\n<div id=\"attachment_26499\" class=\"wp-caption aligncenter\" style=\"width: 810px;\">\n<p><img decoding=\"async\" class=\"aligncenter wp-image-26499 size-full lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2024\/05\/EdiLus-view3D.jpg\" alt=\"EdiLus vista 3D -espessura da laje de piso\" width=\"800\" height=\"427\" aria-describedby=\"caption-attachment-26499\" \/><noscript><img decoding=\"async\" class=\"aligncenter wp-image-26499 size-full lazyload\" src=\"https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2024\/05\/EdiLus-view3D.jpg\" alt=\"EdiLus vista 3D -espessura da laje de piso\" width=\"800\" height=\"427\" aria-describedby=\"caption-attachment-26499\" \/><\/noscript><\/p>\n<p id=\"caption-attachment-26499\" class=\"wp-caption-text\">EdiLus &#8211; Vista 3D<\/p>\n<\/div>\n<h2 id=\"espessura-da-laje-de-piso\">Espessura da laje de piso<\/h2>\n<p>Existem muitos tipos de lajes classific\u00e1veis com base nos materiais de constru\u00e7\u00e3o (a\u00e7o, madeira, concreto armado, etc.), na fun\u00e7\u00e3o (cobertura, entrepisos, etc.) ou na tipologia construtiva (concretadas in loco, pr\u00e9-fabricadas, etc.). Portanto, a espessura n\u00e3o pode ser a mesma em todos os casos e varia tamb\u00e9m com base no v\u00e3o que a laje deve cobrir, na tipologia construtiva, na resist\u00eancia dos materiais, nas cargas previstas no projeto (acidentais, permanentes, etc.), nas prescri\u00e7\u00f5es normativas, etc.<\/p>\n<p>Antes de chegar \u00e0 espessura, vamos fazer um breve resumo dos <strong>tipos de lajes<\/strong> mais comuns:<\/p>\n<ul>\n<li><strong>laje de lajota cer\u00e2mica<\/strong>;\n<ul>\n<li>concretadas in loco;<\/li>\n<li>com vigotas pr\u00e9-fabricadas e blocos cer\u00e2micos intercalados;<\/li>\n<li>com lajes em concreto armado e blocos de enchimento;<\/li>\n<li>com pain\u00e9is pr\u00e9-fabricados;<\/li>\n<li>tipo SAP (com vigotas pr\u00e9-fabricadas de cer\u00e2mica e concreto armado);<\/li>\n<\/ul>\n<\/li>\n<li><strong>madeira<\/strong>;\n<ul>\n<li>com estrutura simples;<\/li>\n<li>com estrutura dupla;<\/li>\n<li>com estrutura tripla;<\/li>\n<li>com caix\u00f5es;<\/li>\n<li>madeira laminada;<\/li>\n<li>madeira maci\u00e7a;<\/li>\n<\/ul>\n<\/li>\n<li><strong>a\u00e7o<\/strong>;\n<ul>\n<li>com vigotas;<\/li>\n<li>perfis e lajotas;<\/li>\n<li>chapa perfilada;<\/li>\n<\/ul>\n<\/li>\n<li><strong>concreto armado<\/strong>;\n<ul>\n<li>com laje maci\u00e7a;<\/li>\n<li>alveolares;<\/li>\n<\/ul>\n<\/li>\n<li><strong>mistos<\/strong>\n<ul>\n<li>concreto armado e concreto pr\u00e9-moldado;<\/li>\n<li>etc.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2 id=\"calculo-da-espessura-da-laje-de-piso\">C\u00e1lculo da espessura da laje de piso<\/h2>\n<p>Dado que a espessura da laje depende de uma variedade de fatores, vamos analisar, a t\u00edtulo exemplificativo, os mais comuns e ver como calcular a espessura m\u00ednima de uma laje para cobrir um v\u00e3o m\u00e9dio de 5 m, a fim de garantir estabilidade e seguran\u00e7a. Vamos considerar as dimens\u00f5es de refer\u00eancia da estrutura principal da laje, deixando de lado todas as camadas funcionais e de acabamento (contrapisos, isolamentos, rebocos, pisos, etc.) que devem ser avaliadas separadamente.<\/p>\n<p>Antes de prosseguir, no entanto, \u00e9 importante ressaltar que o que se segue \u00e9 uma avalia\u00e7\u00e3o preliminar e que, para dimensionar corretamente uma laje, levando em considera\u00e7\u00e3o todas as caracter\u00edsticas e vari\u00e1veis envolvidas, \u00e9 sempre aconselh\u00e1vel recorrer ao uso de um <a class=\"textualLink_edilus\" href=\"https:\/\/www.accasoftware.com\/ptb\/software-calculo-estrutural\" target=\"_blank\" rel=\"noopener\">software de c\u00e1lculo estrutural<\/a>. Dessa forma, voc\u00ea trabalha com seguran\u00e7a e gera automaticamente toda a documenta\u00e7\u00e3o necess\u00e1ria para obter permiss\u00f5es e autoriza\u00e7\u00f5es antes de iniciar os trabalhos.<\/p>\n<p>De qualquer forma, a fase de pr\u00e9-dimensionamento \u00e9 muito importante ao trabalhar em um projeto estrutural, pois constitui o ponto de partida do projeto, fase preliminar \u00e0 cria\u00e7\u00e3o do modelo 3D, realizado com um software de c\u00e1lculo estrutural.<\/p>\n<p>Obviamente, os resultados preliminares obtidos do pr\u00e9-dimensionamento devem ser devidamente verificados pelo software de c\u00e1lculo estrutural. Avaliar espessuras e dimens\u00f5es das se\u00e7\u00f5es aumentar\u00e1 significativamente a probabilidade de atender a todas as verifica\u00e7\u00f5es de resist\u00eancia e deforma\u00e7\u00e3o, reduzindo as altera\u00e7\u00f5es no modelo 3D durante a fase de projeto.<\/p>\n<div id=\"attachment_32494\" class=\"wp-caption aligncenter\" style=\"width: 810px;\">\n<p><img decoding=\"async\" class=\"aligncenter wp-image-32494 size-full lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2024\/05\/solaio-in-ferro-voltine.jpg\" alt=\"espessura da laje de piso\" width=\"800\" height=\"450\" aria-describedby=\"caption-attachment-32494\" \/><noscript><img decoding=\"async\" class=\"aligncenter wp-image-32494 size-full lazyload\" src=\"https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2024\/05\/solaio-in-ferro-voltine.jpg\" alt=\"espessura da laje de piso\" width=\"800\" height=\"450\" aria-describedby=\"caption-attachment-32494\" \/><\/noscript><\/p>\n<p id=\"caption-attachment-32494\" class=\"wp-caption-text\">Laje com vigotas<\/p>\n<\/div>\n<h3>Laje de lajota cer\u00e2mica<\/h3>\n<p>A laje cer\u00e2mica \u00e9 caracterizada por um conjunto de vigotas de concreto armado alternadas com fileiras de lajotas com a \u00fanica fun\u00e7\u00e3o de aligeiramento.<\/p>\n<p>A espessura total da laje deve levar em considera\u00e7\u00e3o os seguintes limites:<\/p>\n<ul>\n<li><strong>h tot = hs+hp &gt; 16 cm<\/strong>. Esta rela\u00e7\u00e3o \u00e9 obtida somando a altura m\u00ednima das lajotas comerciais hp (geralmente 12 cm) \u00e0 espessura m\u00ednima da laje hs, que \u00e9 de 4 cm;<\/li>\n<li><strong>h tot &gt; L\/25<\/strong> . Onde L representa o v\u00e3o da \u00fanica campata.<\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-32016 size-full lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2024\/05\/sezione-solaio.jpg\" alt=\"espessura da laje de piso\" width=\"481\" height=\"139\" \/><noscript><img decoding=\"async\" class=\"aligncenter wp-image-32016 size-full lazyload\" src=\"https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2024\/05\/sezione-solaio.jpg\" alt=\"espessura da laje de piso\" width=\"481\" height=\"139\" \/><\/noscript><\/p>\n<p>Neste caso, calculando a espessura da laje igual ou superior a <strong>1\/25 do v\u00e3o <\/strong>e considerando um v\u00e3o m\u00e9dio de 5 metros, podemos dizer que a <strong>espessura de uma laje de lajota cer\u00e2mica \u00e9 de aproximadamente 20 cm<\/strong>.<\/p>\n<p>Al\u00e9m disso, \u00e9 importante considerar que:<\/p>\n<ul>\n<li>a <strong>base da se\u00e7\u00e3o das vigotas<\/strong> n\u00e3o deve ser inferior a <strong>1\/8<\/strong> do seu v\u00e3o (i) e, de qualquer forma, n\u00e3o inferior a 8 cm. No caso de produ\u00e7\u00e3o em s\u00e9rie em f\u00e1brica de pain\u00e9is completos de laje, a base m\u00ednima das vigotas pode ser reduzida para 5 cm;<\/li>\n<li>o <strong>v\u00e3o entre vigotas<\/strong> (i) deve ser sempre inferior a <strong>15 vezes<\/strong> a espessura da laje (hs);<\/li>\n<li>a <strong>espessura m\u00ednima da laje<\/strong> do piso n\u00e3o deve ser inferior a <strong>4 cm<\/strong>;<\/li>\n<li>a <strong>largura m\u00e1xima da lajota<\/strong> n\u00e3o deve exceder <strong>52 cm<\/strong>.<\/li>\n<\/ul>\n<h3>Laje de a\u00e7o<\/h3>\n<p>As estruturas de a\u00e7o geralmente t\u00eam se\u00e7\u00f5es menores em compara\u00e7\u00e3o com o concreto armado. De fato, uma laje com v\u00e3o entre 4 e 5 metros, com perfis de a\u00e7o a cada 80\/100 cm e contrapiso superior, pode ter perfis com cerca de <strong>12 cm de altura, para uma espessura total entre 15\/18 cm<\/strong>. A espessura aumenta tamb\u00e9m com base na tipologia construtiva, como no caso de lajes com chapa perfilada.<\/p>\n<div id=\"attachment_32495\" class=\"wp-caption aligncenter\" style=\"width: 810px;\">\n<p><img decoding=\"async\" class=\"aligncenter wp-image-32495 size-full lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2024\/05\/solaio_lamiera_grecata_acciaio_tecraria.jpg\" alt=\"espessura da laje de piso\" width=\"800\" height=\"450\" aria-describedby=\"caption-attachment-32495\" \/><noscript><img decoding=\"async\" class=\"aligncenter wp-image-32495 size-full lazyload\" src=\"https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2024\/05\/solaio_lamiera_grecata_acciaio_tecraria.jpg\" alt=\"espessura da laje de piso\" width=\"800\" height=\"450\" aria-describedby=\"caption-attachment-32495\" \/><\/noscript><\/p>\n<p id=\"caption-attachment-32495\" class=\"wp-caption-text\">Laje de a\u00e7o com chapa perfilada<\/p>\n<\/div>\n<h3>Laje de madeira<\/h3>\n<p>A laje de madeira pode ter diferentes tipos, mas geralmente \u00e9 composta por uma estrutura principal de vigas, eventualmente com uma estrutura secund\u00e1ria e elementos de fechamento como:<\/p>\n<ul>\n<li>caibros;<\/li>\n<li>assoalho;<\/li>\n<li>vigotas de cer\u00e2mica;<\/li>\n<li>lajes de pedra;<\/li>\n<li>lajotas;<\/li>\n<li>etc.<\/li>\n<\/ul>\n<p>A tipologia escolhida tamb\u00e9m afetar\u00e1 o c\u00e1lculo, pois influenciar\u00e1 a carga pr\u00f3pria da estrutura da laje.<\/p>\n<p>Nas mesmas condi\u00e7\u00f5es que as de a\u00e7o, as lajes de madeira precisam de vigas com altura de <strong>23 cm<\/strong> a cada 1,30\/1,40 metros aproximadamente, vigotas e contrapiso sobreposto, para uma <strong>espessura<\/strong> <strong>total entre 32\/35 cm<\/strong>.<\/p>\n<p>Para reduzir a se\u00e7\u00e3o resistente do elemento estrutural principal, \u00e9 uma boa pr\u00e1tica posicionar as vigas principais ao longo do lado mais curto do ambiente a ser coberto e gerar um momento fletor inferior.<\/p>\n<div id=\"attachment_26500\" class=\"wp-caption aligncenter\" style=\"width: 810px;\">\n<p><img decoding=\"async\" class=\"aligncenter wp-image-26500 size-full lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2024\/05\/wood-floor-stratigraphy.jpg\" alt=\"espessura da laje de piso\" width=\"800\" height=\"490\" aria-describedby=\"caption-attachment-26500\" \/><noscript><img decoding=\"async\" class=\"aligncenter wp-image-26500 size-full lazyload\" src=\"https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2024\/05\/wood-floor-stratigraphy.jpg\" alt=\"espessura da laje de piso\" width=\"800\" height=\"490\" aria-describedby=\"caption-attachment-26500\" \/><\/noscript><\/p>\n<p id=\"caption-attachment-26500\" class=\"wp-caption-text\">Estratigrafia da laje de madeira<\/p>\n<\/div>\n<p>A metodologia de avalia\u00e7\u00e3o preliminar pode ser estendida a todos os elementos estruturais (pilares, vigas emergentes, etc.).<\/p>\n<p>Obviamente, os valores calculados na fase de pr\u00e9-dimensionamento podem ser otimizados e reduzidos se todas as verifica\u00e7\u00f5es feitas pelo software forem satisfat\u00f3rias.<\/p>\n<p>Para projetar uma laje com um software 3D para c\u00e1lculos estruturais, recomendo que voc\u00ea assista a estes <strong>tutoriais em v\u00eddeo<\/strong> que mostram os passos a seguir e o guiam no projeto.<\/p>\n<div class='avia-iframe-wrap'><iframe title=\"V\u00eddeo Tutorial de EdiLus - C\u00e1lculo dos pavimentos de bet\u00e3o armado - ACCA software\" width=\"1500\" height=\"844\" src=\"https:\/\/www.youtube.com\/embed\/lhgy7MrFxEE?feature=oembed&#038;enablejsapi=1\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<div class=\"international-product-banner-desktop\" style=\"text-align: center;\"><a class=\"product-banner-link\" href=\"https:\/\/www.accasoftware.com\/ptb\/software-calculo-estrutural\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"\/wp-content\/themes\/enfold-child\/img\/banner_prodotto\/edilus-ptb.jpg\" alt=\"Edilus\" width=\"728\" height=\"160\" \/><noscript><img decoding=\"async\" class=\"lazyload\" src=\"\/wp-content\/themes\/enfold-child\/img\/banner_prodotto\/edilus-ptb.jpg\" alt=\"Edilus\" width=\"728\" height=\"160\" \/><\/noscript><\/a><\/div>\n<p>&nbsp;<\/p>\n<div class=\"international-product-banner-mobile\" style=\"text-align: center;\"><a class=\"product-banner-link\" href=\"https:\/\/www.accasoftware.com\/ptb\/software-calculo-estrutural\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"\/wp-content\/themes\/enfold-child\/img\/banner_prodotto_mobile\/edilus-ptb.jpg\" alt=\"Edilus\" width=\"600\" height=\"500\" \/><noscript><img decoding=\"async\" class=\"lazyload\" src=\"\/wp-content\/themes\/enfold-child\/img\/banner_prodotto_mobile\/edilus-ptb.jpg\" alt=\"Edilus\" width=\"600\" height=\"500\" \/><\/noscript><\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Calcular a espessura da laje de piso \u00e9 essencial j\u00e1 na fase de pr\u00e9-dimensionamento. Aqui est\u00e3o as espessuras com base nos principais tipos<\/p>\n","protected":false},"author":54,"featured_media":29129,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_data_scadenza_evento":"","_evento_nome":"","_evento_data":"","_evento_luogo":"","_evento_cta":"","keyword_en":"","keyword_es":"","keyword_fr":"","keyword_de":"","keyword_ptb":"espessura da laje de piso","_note_content":"<table dir=\"ltr\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\" data-sheets-root=\"1\"><colgroup><col width=\"47\" \/><col width=\"543\" \/><col width=\"93\" \/><\/colgroup>\r\n<tbody>\r\n<tr>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;EN&quot;}\">EN<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;floor slab thickness&quot;}\">floor slab thickness<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:3,&quot;3&quot;:40}\">40<\/td>\r\n<\/tr>\r\n<tr>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;EN&quot;}\">EN<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;standard floor slab thickness&quot;}\">standard floor slab thickness<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:3,&quot;3&quot;:40}\">40<\/td>\r\n<\/tr>\r\n<tr>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;EN&quot;}\">EN<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;how thick are floor slabs&quot;}\">how thick are floor slabs<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:3,&quot;3&quot;:20}\">20<\/td>\r\n<\/tr>\r\n<tr>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;EN&quot;}\">EN<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;how thick is a floor slab&quot;}\">how thick is a floor slab<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:3,&quot;3&quot;:20}\">20<\/td>\r\n<\/tr>\r\n<tr>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;EN&quot;}\">EN<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;second floor slab thickness&quot;}\">second floor slab thickness<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:3,&quot;3&quot;:20}\">20<\/td>\r\n<\/tr>\r\n<tr>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;EN&quot;}\">EN<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;standard thickness of second floor slab&quot;}\">standard thickness of second floor slab<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:3,&quot;3&quot;:20}\">20<\/td>\r\n<\/tr>\r\n<tr>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;EN&quot;}\">EN<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;thickness of a floor slab&quot;}\">thickness of a floor slab<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:3,&quot;3&quot;:20}\">20<\/td>\r\n<\/tr>\r\n<tr>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;EN&quot;}\">EN<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;thickness of floor slab&quot;}\">thickness of floor slab<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:3,&quot;3&quot;:20}\">20<\/td>\r\n<\/tr>\r\n<tr>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;EN&quot;}\">EN<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;typical floor slab thickness&quot;}\">typical floor slab thickness<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:3,&quot;3&quot;:20}\">20<\/td>\r\n<\/tr>\r\n<tr>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;EN&quot;}\">EN<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;minimum thickness of floor slab&quot;}\">minimum thickness of floor slab<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:3,&quot;3&quot;:10}\">10<\/td>\r\n<\/tr>\r\n<tr>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;FR&quot;}\">FR<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;dalle de sol \u00e9paisseur&quot;}\">dalle de sol \u00e9paisseur<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:3,&quot;3&quot;:0}\">0<\/td>\r\n<\/tr>\r\n<tr>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;PTB&quot;}\">PTB<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;espessura da laje de piso&quot;}\">espessura da laje de piso<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:3,&quot;3&quot;:20}\">20<\/td>\r\n<\/tr>\r\n<tr>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;PTB&quot;}\">PTB<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;espessura da laje piso&quot;}\">espessura da laje piso<\/td>\r\n<td data-sheets-value=\"{&quot;1&quot;:3,&quot;3&quot;:20}\">20<\/td>\r\n<\/tr>\r\n<tr>\r\n<td 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