{"id":24751,"date":"2023-01-23T11:59:47","date_gmt":"2023-01-23T10:59:47","guid":{"rendered":"https:\/\/biblus.accasoftware.com\/en\/?p=24751"},"modified":"2023-03-14T14:22:55","modified_gmt":"2023-03-14T13:22:55","slug":"ifc-4-3-the-openbim-standard-also-for-infrastructure-possible-applications","status":"publish","type":"post","link":"https:\/\/biblus.accasoftware.com\/en\/ifc-4-3-the-openbim-standard-also-for-infrastructure-possible-applications\/","title":{"rendered":"IFC 4.3, the openBIM standard also for infrastructure. Possible applications"},"content":{"rendered":"

Finally it is possible to manage and model infrastructures (bridges, rail networks, roads, etc.) with openBIM standards, IFC 4.3 and operational tools<\/p>\n

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With the new version I FC 4.3, the construction sector makes a significant leap forward towards the digitalization of infrastructure<\/strong> in openBIM<\/strong> format.<\/p>\n

The new bSI (buildingSMART International<\/a>) standard has been created to extend the benefits of the IFC also to so-called “horizontal resources”<\/em> and linear infrastructures, such as roads, railway tracks, bridges, aqueducts.<\/p>\n

With the innovative tools<\/em> that I will introduce shortly, generating IFC 4.3 models of existing infrastructures will be possibile. Thanks to digital technologies (laser scanners, LiDAR, drones and photogrammetry) it becomes possible to apply Scan To BIM processes<\/a>, i.e. reverse engineering operations,<\/em> which allow to recreate digital models in open standard formats (openBIM) also for infrastructures.<\/p>\n

This is a long-awaited step forward, which finally facilitates interoperability between vertical BIM (buildings) and horizontal BIM, extending the use of the IFC format and the benefits of openBIM, also to infrastructures.<\/p>\n

This article will introduce some new software and tools within the bSI working group, with the aim of testing and producing the operating instructions on the modeling of the new IFC 4.3 standard.<\/p>\n

In the final part of the article, it will be possible for you to navigate the model of a bridge (the Acerno viaduct) directly from your browser thanks to an IFC viewer online<\/a>.<\/p>\n

The evolution of the IFC<\/h2>\n

Before starting, it is advisable to make a very brief introduction on the IFC format, to better specify what is meant by IFC 4.3.<\/p>\n

The IFC (Industry Foundation Classes<\/em>) is an open, non-proprietary format, developed to define the geometric and alphanumeric information of buildings, prefabricated products, electrical systems, etc. and support the exchange activities among construction sector professionals, throughout the entire life cycle of the work.<\/p>\n

The IFC format is used by designers, suppliers and contractors to exchange data<\/strong>, even among users using different software. It represents, in fact, the common language, the standard for the transmission of information.<\/p>\n

It is important to establish in first place, the Model View Definition<\/em> (MVD) and the file format to be used.<\/p>\n

Model View Definitions<\/em> (MVDs) are subsets (or intelligent filters) of the IFC schema that define what data model information should be included. If you want to know exactly what a Model View Definition is, read the article <\/em>“Model View Definition <\/em>(MVD) and BIM data interchange”<\/a>.<\/p>\n

The first version of the IFC, IFC 1.0<\/strong>, came into use for the first time in 2000. Since that date, the IFC format has undergone a number of evolutions.<\/p>\n

After the release of IFC 2\u00d73<\/strong>, buildingSMART began work on the new version of the IFC 2\u00d74<\/strong> format, better known as IFC 4, released on March 12, 2013 and made official by the ISO16739 :2013<\/strong> standard.<\/p>\n

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The evolution of IFC standard<\/p><\/div>\n

As the original name suggests, IFC 4 is not a completely new scheme but rather an improvement on the quality of the existing IFC 2\u00d73 format.<\/p>\n

In summary, the improvements provided by IFC version 4 are described by buildingSMART as<\/p>\n