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BIMserver

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BIMserver (Open source Building Information Modelserver, formerly IFC Server) is an IFC Standard s compliant model server for the management of Building Information Modeling projects. The server software is free software.

History[edit]

The BIMserver software is developed by the Netherlands Organization for Applied Scientific Research (TNO), the Eindhoven University of Technology (TU/e), Oracle and by a smaller group of programmers consisting of Jakob Beetz, Ruben de Laat, Pim van den Helm and Léon van Berlo, project leader and founder of the project. The project was formerly called "IFC Server".

Use[edit]

As collaboration software, BIMserver enables simultaneous engineering, the distributed concurrent processing of virtual models with programs from different software vendors. The software is used in construction engineering and in the real estate industry (facility management).

The software can also be used as a product library for product suppliers of building components such as doors, windows or HVAC elements. In addition, the products can be linked as IFC models in building models, whereby a distributed building data infrastructure can be realized.

Technology[edit]

BIMserver is not a file server, but a object-relational database schemed according to IFC standards. For this a Berkeley DB from Oracle is used. The abstraction of the software architecture allows a future development also with other other database systems.

The software has a model-driven architecture and is programmed in Java, but also uses an DLL IFC engine in C++. The DLL functions of the IFC engine are available on Windows, Linux, Unix and Mac OS X on both 32- and 64-bit system tested and functional.

Interfaces[edit]

The user, rights and project management as well as the upload and download of partial and main projects takes place via a graphical user interface that can be accessed via the web browser. This is compliant with the W3C standards. To view the models in the browser, BIMserver has implemented a WebGL viewer. For this, the JavaScript library o3d by Google is used.

BIMserver has implemented a SOAP interface. Webservice uses the Building Information Exchange Protocol (BIM ExPro or BIEP), which combines Sable and oBIX. This allows projects to be displayed in a desktop software. For example, Autodesk Revit can use plug-in to exchange data with BIMserver.

There is a REST interface for incorporating information from the IFC models into other web applications. Each IFC object has its own URL and can be retrieved—either anonymously or password-protected, depending on the declaration.

Schema: BIMserver Interfaces

Functionalities[edit]

  • User Administration and Rights Management for main and subprojects.
  • Users can get information about changes in the project via RSS feeds.
  • Versioning down to IFC object level.
  • Revision Management for main and subprojects.
  • Merge from part models to a main model.
  • Geo-Localization of models using coordinates to create a GIS link.
  • Import and valid export of formats like IFC, ifcXML and ifcZIP.
  • Other export formats: Construction Operations Building Information Exchange (COBie), CityGML, Collada (eg for Google SketchUp or Blender), KML, Google Earth network link (URL for Google Earth).

Functions such as Document Management and Workflow are not implemented in BIMserver. For these functions there is a BIMserver plugin for Alfresco.

Screenshot: BIMserver Project Details Revision Management

Literature[edit]

  • Beetz, J., van Berlo, L., de Laat, R. and van den Helm, P.: "Bimserver.org - an Open Source IFC model server". In: Proc. of. 27th International Conference on Applications of IT in the AEC Industry CIB-W78. Metis, Cairo 2010. S. 1–8.

Weblinks[edit]

References[edit]



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