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The article deals with the conduct of a numerical experiment on study of the stress-strain state of building structures according to using developed mathematical models. Research methodology consists in the use of one of the most advanced BIM technologies in the world, namely of the LIRA 10.10 software complex © 2013-2021 LIRA Soft, for creating adequate mathematical models of an industrial building taking into account the most likely difficult operating conditions: loads, seismic and operational impacts, progressive collapse. Calculations have been made progressive collapse, where the initial calculation scheme is taken as the main scheme of the shelf. To determine the most dangerous part of the building in in the event of an emergency situation, a set of calculations was carried out with the sequential removal of each support column. From the analysis of calculations, calculation schemes were determined, in which the greatest forces arise from a special combination of loads. Later, these schemes were adopted basic for emergency calculations. Conducted mathematical modeling the work of building structures in difficult chemical conditions production using modern BIM technology, such as PC LIRA 10.10, allows you to get the necessary reliable data on the operation of real buildings thanks to the use of world experience in design, construction and operation of construction structures, buildings and structures during creation software product.

The article analyzes modern methods for monitoring the technical operation of buildings and structures. Technical inspection of buildings and structures is a separate type of construction activity. The necessity for a technical survey is caused by the physical and moral deterioration of building structures and changes of terms of use, as well as the absence in building codes of an explicit account of the time factor. Ensuring the operability of structures at a specific moment of existence requires a set of measures that differ from the design, manufacture and installation of building elements associated with the creation of normal conditions for the life of enterprises in industrial buildings and structures and, above all, the safety of the operation process.  Specialists in the technical operation of buildings and structures have new tools for more accurate determination of defects and supervision of buildings and structures. The emergence and development of IT technologies, in particular, the use of mathematical, computer modeling techniques have demonstrated unprecedented opportunities for a comprehensive approach to testing the performance of buildings. Most modern methods of technical inspection of buildings do not require significant financial and labor costs; they can be directly implemented both during the planning of the facility and during its operation without reducing the bearing capacity of structures, unlike classical methods (visual, visual-instrumental, etc.). Their goal is to control the technical condition of building structures and early diagnosis of threats to the existence of the object. The integrated use of these methods at different stages of the life cycle of buildings will increase their service life and the comfort and safety of staying in them.