{"id":9979,"date":"2025-09-02T10:28:07","date_gmt":"2025-09-02T08:28:07","guid":{"rendered":"http:\/\/biblus.accasoftware.com\/ptb\/?p=9979"},"modified":"2025-09-08T11:09:21","modified_gmt":"2025-09-08T09:09:21","slug":"ifcrelationship-confira-a-arquitetura-do-arquivo-ifc","status":"publish","type":"post","link":"https:\/\/biblus.accasoftware.com\/ptb\/ifcrelationship-confira-a-arquitetura-do-arquivo-ifc\/","title":{"rendered":"IfcRelationship: confira a arquitetura do arquivo IFC"},"content":{"rendered":"<p class=\"sommario\">IfcRelationship \u00e8 o segundo pilar da estrutura de dados IFC. Conhe\u00e7a as diferentes tipologias de rela\u00e7\u00f5es entre as v\u00e1rias entidades e propriedades<\/p>\n<p><!--more--><\/p>\n<p>Neste artigo, vamos falar sobre o segundo pilar em que est\u00e1 baseada a estrutura de dados formato IFC (<em>Industry Foundation Classes<\/em>): <code>IfcRelationShip<\/code>, ou seja, os diferentes tipos de rela\u00e7\u00f5es dentro do formato IFC.<\/p>\n<p>Se quiser verificar na pr\u00e1tica o conceito de <code>IfcRelationship<\/code> entre entidades de um edif\u00edcio (ou partes dele), como paredes, pisos, janelas, voc\u00ea pode usar um <a href=\"https:\/\/www.accasoftware.com\/ptb\/visualizador-bim\" target=\"_blank\" rel=\"noopener\">visualizador BIM online<\/a> que permite a abertura, a an\u00e1lise e o gerenciamento de um arquivo IFC.<\/p>\n<p>Confira o artigo precedente dedicado \u00e0 &#8220;<a href=\"https:\/\/biblus.accasoftware.com\/ptb\/arquitetura-de-um-arquivo-ifc-ifcobjectdefinition\/\">Arquitetura de um arquivo IFC: IfcObjectDefinition<\/a>&#8220;.<\/p>\n<h2 id=\"arquitetura-de-um-modelo-ifc\">Arquitetura de um modelo IFC<\/h2>\n<p><span lang=\"PT-BR\">O esquema IFC pode ser considerado um sistema de armazenamento para organizar e transportar dados digitais, para aprimorar a <a href=\"https:\/\/biblus.accasoftware.com\/ptb\/formato-ifc-e-open-bim-tudo-o-que-e-preciso-saber\/\">interoperabilidade<\/a> entre diferentes atores .<\/span><\/p>\n<p><span lang=\"PT-BR\">IFC define um modelo composto por centenas de entidades organizadas de forma hier\u00e1rquica.<\/span><\/p>\n<p><img decoding=\"async\" class=\"wp-image-30331 size-full aligncenter\" src=\"https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/Esquema-Dados-Ifc-Classes.png\" alt=\"O grafico mostra a composicao do esquema de dados IFC\" width=\"800\" height=\"326\" \/><\/p>\n<p><span lang=\"PT-BR\">A l\u00f3gica do IFC est\u00e1 baseada em 3 conceitos fundamentais, que representam a pr\u00f3pria estrutura e definem:<\/span><\/p>\n<ul>\n<li><a href=\"https:\/\/biblus.accasoftware.com\/ptb\/arquitetura-de-um-arquivo-ifc-ifcobjectdefinition\/\" target=\"_blank\" rel=\"noopener noreferrer\"><code>IfcObjectDefinition<\/code><\/a>: as entidades, ou seja, objetos.<\/li>\n<li><a href=\"https:\/\/biblus.accasoftware.com\/ptb\/ifcrelationship-confira-a-arquitetura-do-arquivo-ifc\/\"><code>IfcRelationship<\/code><\/a>: as rela\u00e7\u00f5es entre as entidades.<\/li>\n<li><code>IfcPropertyDefinition<\/code>: as propriedades associadas \u00e0s entidades.<\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"wp-image-30488 size-full alignnone\" src=\"https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/Esquema-Classes-Ifc-Relationship-Relacionamentos-1.png\" alt=\"O grafico mostra um esquema da subdivisao da classe IfcRelationship\" \/><\/p>\n<h2 id=\"ifcrelationship\">IfcRelationship<\/h2>\n<p><code>IfcRelationship<\/code> descreve as diferentes tipologias de rela\u00e7\u00f5es.<\/p>\n<p>H\u00e1 5 tipos de rela\u00e7\u00f5es fundamentais dentro do modelo IFC, subtipos da classe <code>IfcRelationship<\/code>:<\/p>\n<ol>\n<li><code>IfcRelConnects<\/code> \u00e9 uma rela\u00e7\u00e3o de v\u00ednculo que conecta os objetos com base em alguns crit\u00e9rios. Por exemplo, uma laje ligada a uma viga, ou uma parede divis\u00f3ria que est\u00e1 em um pavimento.<\/li>\n<li><code>IfcRelAssociates<\/code> detecta fontes externas de informa\u00e7\u00f5es e associa elas para objetos ou defini\u00e7\u00f5es de propriedades. A rela\u00e7\u00e3o de associa\u00e7\u00e3o \u00e9 unidirecional. Por exemplo, uma biblioteca IFC externa onde foi definido o objeto, ou as informa\u00e7\u00f5es sobre classifica\u00e7\u00e3o de um espa\u00e7o espec\u00edfico dentro de um edif\u00edcio.<\/li>\n<li><code>IfcRelDecomposes<\/code> define o conceito geral de elementos compostos ou decompostos. As decomposi\u00e7\u00f5es implicam uma depend\u00eancia, ou seja, a defini\u00e7\u00e3o do conjunto depende da defini\u00e7\u00e3o das partes, e as partes dependem da exist\u00eancia do conjunto. Por isso, um item de custo pode estar compreendido em outros, bem como um quadro estrutural \u00e9 um conjunto de vigas e colunas.<\/li>\n<li><code>IfcRelDefines<\/code> permite a uma inst\u00e2ncia herdar as propriedades de uma outra. Por exemplo, janelas diferentes dentro do modelo IFC podem pertencer ao mesmo tipo (mesmo cat\u00e1logo ou produtor), ent\u00e3o \u00e9 poss\u00edvel compartilhar essas informa\u00e7\u00f5es entre as inst\u00e2ncias.<\/li>\n<li><code>IfcRelAssigns<\/code> esclarece as rela\u00e7\u00f5es que se criam quando um objeto precisar dos servi\u00e7os de outro. Por exemplo, pode-se atribuir um recurso espec\u00edfico a um objeto.<\/li>\n<\/ol>\n<p><span lang=\"PT-BR\">Cada um desses cinco tipos est\u00e1 ramificado em rela\u00e7\u00f5es adicionais (\u00e1rvores subtipos) entre objetos, tipos, propriedades, etc., como mostrado pelo gr\u00e1fico:<\/span><\/p>\n<p><img decoding=\"async\" class=\"wp-image-30468 size-full aligncenter\" src=\"https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/Subdivisao-Classes-Ifc-Relationship-Relacionamento.png\" alt=\"A imagem mostra um grafico da subdivisao da classe IfcRelationship\" \/><\/p>\n<p>Seguem alguns exemplos de rela\u00e7\u00f5es:<\/p>\n<ul>\n<li>na primeira imagem, <code>IfcRelAggregates<\/code> estabelece uma rela\u00e7\u00e3o entre <code>IfcBuilding<\/code> (edif\u00edcio) e todos os seus <strong>andares<\/strong> (<code>IfcBuildingStorey<\/code>).<\/li>\n<li>Na segunda imagem, <code>IfcRelContainedInSpatialStructure<\/code> estabelece uma rela\u00e7\u00e3o entre <code>IfcBuildingStorey<\/code> e todas as <strong>entidades<\/strong> que pertencem a ele.<\/li>\n<li>Na terceira imagem, <code>IfcRelConnectsPathElements<\/code> estabelece uma rela\u00e7\u00e3o entre duas <strong>entidades cont\u00edguas <\/strong>(paredes) contidas em <code>IfcWallStandardCase<\/code>.<\/li>\n<\/ul>\n<div id=\"attachment_24385\" style=\"width: 808px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-24385\" class=\"wp-image-24385 size-full\" src=\"https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/IfcRelAggregates.jpg.webp\" alt=\"\" width=\"798\" height=\"444\" srcset=\"https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/IfcRelAggregates.jpg.webp 798w, https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/IfcRelAggregates.jpg-300x167.webp 300w, https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/IfcRelAggregates.jpg-768x427.webp 768w, https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/IfcRelAggregates.jpg-705x392.webp 705w, https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/IfcRelAggregates.jpg-288x160.webp 288w\" sizes=\"(max-width: 798px) 100vw, 798px\" \/><p id=\"caption-attachment-24385\" class=\"wp-caption-text\"><code>IfcRelAggregates<\/code> | Rela\u00e7\u00e3o entre <code>IfcBuilding<\/code> e andares (<code>IfcBuildingStorey<\/code>)<\/p><\/div>\n<div id=\"attachment_24386\" style=\"width: 809px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-24386\" class=\"wp-image-24386 size-full\" src=\"https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/IfcRelContainedInSpatialStructure.jpg.webp\" alt=\"\" width=\"799\" height=\"444\" srcset=\"https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/IfcRelContainedInSpatialStructure.jpg.webp 799w, https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/IfcRelContainedInSpatialStructure.jpg-300x167.webp 300w, https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/IfcRelContainedInSpatialStructure.jpg-768x427.webp 768w, https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/IfcRelContainedInSpatialStructure.jpg-705x392.webp 705w, https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/IfcRelContainedInSpatialStructure.jpg-288x160.webp 288w\" sizes=\"(max-width: 799px) 100vw, 799px\" \/><p id=\"caption-attachment-24386\" class=\"wp-caption-text\"><code>IfcRelContainedInSpatialStructure<\/code> | Rela\u00e7\u00e3o entre <code>IfcBuildingStorey<\/code> e as entidades pertencentes a ele (<code>IfcDoor<\/code>, <code>IfcWallStandardCase<\/code>, <code>IfcSlab<\/code>, <code>IfcWindow<\/code>).<\/p><\/div>\n<div id=\"attachment_24387\" style=\"width: 808px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-24387\" class=\"wp-image-24387 size-full\" src=\"https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/IfcRelConnectsPathElements.jpg.webp\" alt=\"\" width=\"798\" height=\"444\" srcset=\"https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/IfcRelConnectsPathElements.jpg.webp 798w, https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/IfcRelConnectsPathElements.jpg-300x167.webp 300w, https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/IfcRelConnectsPathElements.jpg-768x427.webp 768w, https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/IfcRelConnectsPathElements.jpg-705x392.webp 705w, https:\/\/biblus.accasoftware.com\/ptb\/wp-content\/uploads\/sites\/5\/2020\/02\/IfcRelConnectsPathElements.jpg-288x160.webp 288w\" sizes=\"(max-width: 798px) 100vw, 798px\" \/><p id=\"caption-attachment-24387\" class=\"wp-caption-text\"><code>IfcRelConnectsPathElements<\/code> | Rela\u00e7\u00e3o entre duas entidades cont\u00edguas contidas em <code>IfcWallStandardCase<\/code><\/p><\/div>\n<p>&nbsp;<\/p>\n<div class=\"international-product-banner-desktop\" style=\"text-align: center;\"><a class=\"product-banner-link\" href=\"https:\/\/www.accasoftware.com\/ptb\/visualizador-bim\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"\/wp-content\/themes\/enfold-child\/img\/banner_prodotto\/usbim-browser-ptb.jpg\" alt=\"usbim-browser\" \/><\/a><\/div>\n<div class=\"international-product-banner-mobile\" style=\"text-align: center;\"><a class=\"product-banner-link\" href=\"https:\/\/www.accasoftware.com\/ptb\/visualizador-bim\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"\/wp-content\/themes\/enfold-child\/img\/banner_prodotto_mobile\/usbim-browser-ptb.jpg\" alt=\"usbim-browser\" \/><\/a><\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>IfcRelationship \u00e8 o segundo pilar da estrutura de dados IFC. Conhe\u00e7a as diferentes tipologias de rela\u00e7\u00f5es entre as v\u00e1rias entidades e propriedades<\/p>\n","protected":false},"author":34,"featured_media":36785,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"keyword_en":"","keyword_es":"","keyword_fr":"","keyword_de":"","keyword_ptb":"","_note_content":"","footnotes":""},"categories":[5319],"tags":[5255,1946,5258,5400,5419],"class_list":["post-9979","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bim-e-educacao-formacao","tag-acca-viewer","tag-newsletter-136","tag-newsletter-296","tag-newsletter-394","tag-newsletter-412"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.8 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>IfcRelationship: confira a arquitetura do arquivo IFC - BibLus<\/title>\n<meta name=\"description\" content=\"IfcRelationship \u00e8 o segundo pilar da estrutura de dados IFC. 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