The assessment of the physical deterioration of buildings and structures is an expensive, lengthy and to some extent subjective process. The process of making a decision on the need for repair, reconstruction or demolition of a building is stretched over time, sometimes dragging on for years. At the same time, the condition of a building or structure may undergo significant changes, and therefore, the efficiency of information is crucial. The authors of the article propose a method for assessing the physical wear of buildings and structures based on the results of thermal imaging, which allows you to accurately indicate the areas of heat loss. The building's enclosing structures combine load-bearing and heat-protective functions. The presence of defects (cracks, chips, soaking) lead to the formation of heat loss bridges, which are manifested in thermal imaging. The work is carried out both with stationary scanners and with the use of unmanned aerial vehicles. Thermal imaging should be carried out during the heating period. It is important to be able to obtain information about the presence of damage in a hard-to-reach part of buildings. When using stationary scanners, a combined assessment of the condition of the structure, including geometric parameters, is possible. The camera processing of the survey results is carried out on the basis of standard methods fixed by regulatory documents. Being an integral part of a complex of engineering surveys conducted to determine the physical wear of buildings and structures, this technique allows you to supplement the general situation analyzed when drawing up the final conclusion with quantitative data.
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