Geo-enabled Building Information Modelling to prevent overload of information and to reduce errors


State of the art


The case for a comprehensive reference to processes in building construction is clear and compelling. The physical and energetic assessment of existing buildings and correlated retrofitting strategies are usually done by different actors, based on diverse technical appreciations and judgements and in a segmented time-consuming process. By integrating information with process, the potential value of such a reference is greatly enhanced to become a key tool in driving the benefits of Building Information Modelling (BIM). As example, even although nowadays boundary conditions of any retrofitting building project can easily be acquired through imagery, point clouds and public datasets, the integration of these datasets into the daily workflows of a construction project is still a struggle. In addition to that, geothermal retrofitting in urban areas has increased complexity.


Beyond the processes, state of the art BIM of current open formats like IFC-4 cannot provide all desired features since a clear and accurate geo-positioning is required, full-time available to all operators and seamlessly linked with any evolution of the digital model. In this way, only a seamless integration of all this data can provide the right decision among all potential solutions along the geothermal facility lifespan.


The GEOFIT solution


To improve this, GEOFIT aims to take and assemble powerful tools for a better assessment, inspection and ground research tools to shorten the process and to improve accuracy. In the digital world this means that the geospatial aspect becomes crucial for geothermal retrofitting at building scale.


The adoption of a geo-enabled BIM (GEOBIM) platform, as well as a Geothermal Retrofitting Information Delivery Manual, will allow the integration of the developed Integrated Design and Delivery Solutions (IDDS) processes during any phase: Design, Construction and Operation and Facility Management operations and BIM Dimensions: Geometry, Time, Cost, Energy Efficiency and Facility Management. This gives to all stakeholders involved the opportunity of having access to that information they need whenever they need it. This means all data coming from the same source. This will not only prevent the effect of overload of information, but also the risk of non-updated data, reducing errors. Furthermore, the work done in one phase may be transferred to the following ones, even between different actors.