The “digital twin” of an object OS the basis of an interactive monitoring system for the operation of buildings and structures

The basics of the organization of a monitoring system for ensuring the mechanical safety of structures during the operation of buildings and structures are presented, which is based on a mathematical model (“digital twin”) of the object.It is shown that the mathematical model for the organization of monitoring should be based on different approaches compared with the design model of the structure created during the development of design documentation.For monitoring purposes, the “digital twin” of an object should reflect the most likely condition of its structures, be free from assumptions that are used in the construction of a design calculation model, reflect the aIn this case, the mathematical model becomes the basis of an interactive monitoring system, which allows it to be built on the principle of a traffic light, defining an alarm criterion (yellow signal), which allows timely organizational and technical decisions to be made when a negative trend has not yet led to dangerous consequences (red signal).ctual characteristics of structural materials, actual loads and impacts recorded in the executive documentation and deviations from the project.In this case, the mathematical model becomes the basis of an interactive monitoring system, which allows it to be built on the principle of a traffic light, defining an alarm criterion (yellow signal), which allows timely organizational and technical decisions to be made when a negative trend has not yet led to dangerous consequences (red signal).The mathematical model also allows for the interpolation of discrete readings of installed sensors according to the laws of operation of the structure itself (instead of the usual proportional calculation between points), which makes it possible to verify the measurement results.In addition, it opens up the possibility of performing continuous definitions of the stress-strain state of an object, when the deformation pattern is determined photogrammetrically, and stresses are calculated using a mathematical model. The article describes the software implementing the proposed approach.