Performance analysis of buildings using BIM models has significantly advanced compared to traditional CAD technologies. Conventional methods primarily rely on geometric models, with data exchange between different applications occurring through graphic information exchange standards such as IGES and DXF. These standards only support the transmission and sharing of geometric data related to the project. Consequently, in practical scenarios, different models often need to be created to meet the specific requirements of various analysis software. This means that for a single building, multiple descriptions must be produced for different applications. Overall, this process is time-consuming and costly for general architectural design.
BIM has revolutionized this workflow by providing integrated models enriched with comprehensive building information. Many applications can now be directly developed on the BIM model itself, eliminating the need for extensive additional work.
For example, take REVIT, which allows multiple aspects of building performance analysis to be applied directly within the BIM model. REVIT supports the gbXML standard—an XML schema specifically designed for green building design and evaluation. The gbXML structure defines elements such as building spaces and maintenance systems, and it can integrate with services like GeoPraxis’ Green Building Studio online platform. Once a BIM model is created during the design phase, it can be submitted online, and the feedback on energy consumption and load data can be used to refine the design.
The highly integrated data model of BIM offers consistent data application interfaces across various professional fields. This consistency enables professionals from different disciplines to collaborate on a shared platform and interface during the design process, greatly enhancing the efficiency of model utilization.
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