Abstract
There are about 200 operating mines in Ukraine, most of which have not been reconstructed for more than 20 years. Modern anthropogenic and ecological impacts are caused by local technogenic catastrophes and the global ecological crisis. The statistical data on the safety of Ukrainian mines were considered. A literary analysis has been made of advanced expertise in the technical state assessment of the building structures. The purpose of the study is to make optimal decisions when constructing, operating and maintaining the buildings. The procedure for assessing the building state is the result of research, the purpose of which is to develop a technique for reliable and operational assessment of the building structures technical state. In this paper, a technique is proposed for inspecting the constructions and assessing their technical state. The maximum efforts in elements of the adapted frame were used for checking calculations and constructional design. The obtained calculation results were used in determining the sufficiency of existing cross section value of the structure elements. According to the calculation results, a conclusion has been made that hardness, stability and rigidity of the frame elements as a whole are ensured; further operation of the building structures is possible providing for the project development to strengthen building structures and to implement the design solutions at the construction site. In order to ensure the continued normal operation, it is necessary to develop a project for strengthening the structures, as well as a project for fire protection of building structures.
Highlights
Ukraine is the first in Europe and the eighth in the world in terms of geological reserves of fossil coal
Modern anthropogenic impact and ecological damage, conditioned by local technogenic catastrophes [1, 2] and the global ecological crisis, evidence that the current ecosystems state constitutes a significant threat to all mankind [3 – 5]
As it can be seen from the above analysis, the issues of technical regulation of both building structures and the building as a whole in order to avoid mistakes during the inspection, evaluation of the technical state of building structures and restoration of the serviceability of existing structures, as well as predicting the technical state and possible destruction after exposure to high temperatures, is an actual scientific and technical problem, the solution of which will positively affect the main indicators of fire statistics
Summary
Ukraine is the first in Europe and the eighth in the world in terms of geological reserves of fossil coal. The work [8] summed up the engineering assessment study of the degree of thermal damage to reinforced concrete structures. The assessment of the existing buildings state with the use of non-destructive testing method is studied in [10]. In the work [13], a review is represented of the principles and practices of assessing the state of existing reinforced concrete structures, as well as a technique of work to assess the technical state before repairing, from the point of view of an expert. To assess the technical state of buildings and their structures, the methods of risk analysis can be used. These methods can be used for pricing the construction according to the state, age and use. The procedure for assessing the state of a building is a result of the original study, the purpose of which was to develop a technique for reliable, but quick assessment of the assets state, which should be made before they are acquired or the main decisions on their reconstruction are made
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