Abstract
This work has shown the effectiveness of coercive diagnostics. The method can be recommended as an initial examination of metal structures in order to identify problem areas and further application of traditional methods of non-destructive testing for a more in-depth examination of these areas of metal structures. Calculation models for obtaining load values in the nodes and structural elements usually do not take into account the errors of technological operations in the manufacture and subsequent assembly of metal structures. Experimental work to determine the stress-strain state of the elements of metal structures of office and residential building was carried out. The supporting steel frame of the building is made of rolled and welded profiles made of C440 steel, using the method of measuring coercive force. Stress-strain state was determined by measuring the coercive force according to the requirements of GOST R58599-2019 in zones and nodes where maximum stresses close to the yield strength of steel C440 were obtained.
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