Practical Aspects of the Use BIM Technology for Existing Buildings

In the analysis process enabling the renovation of existing facilities, the use of BIM technology becomes more and more common. It results from the increasingly widespread dissemination of IT solutions, which can be successfully used in situations where it is necessary to implement new concepts of using objects, but also when it is necessary to quickly adapt the structure to different load conditions. At the time of making the decision to implement the reconstruction of buildings, it may turn out that the use of BIM technology to create a full digital model will be one of the better-used investment funds in correlation with the effect of final solutions. In the work, research was undertaken to determine in which types of objects measurable effects can be obtained from the use of new technology. This is extremely important when making the decision about the need to incur additional expenses to perform the necessary macroscopic research and sometimes outlets of the existing structure in a manner adequate to the possibility of later use in the process of creating a numerical model. A different issue is the undoubted usefulness in obtaining new opportunities when used for historic buildings, whose period of use should practically be unlimited The article will specify the possibilities of using BIM in the processes of building identification and construction structures, as well as the necessary data to be obtained during the preparatory works. Model solutions will be discussed, enabling the use of multi-criteria analysis of the selection of the most optimal solutions during the renovation process. Performing the above work by building a numerical model of the facility allows at each stage of verification by authorized persons inventoried solutions and enables tracking and changes in the situation of identified exceptions in relation to parameters determined at the initial stage. The work will be summarized by the results of the conducted analyzes with an indication of the utilitarian aspects of the completed research.