The object of research is C-shaped elements made of thin-walled cold-formed profiles. The subject of the study is the stability of C-shaped rod elements from thin-walled cold-formed profiles. Research goal: development of the calculation process by the finite element method and determination of coefficients of loss of the overall stability of thin-walled cold-formed rods. Method. A numerical-analytical research method is used to reduce the time and volume of settlement operations. The buckling coefficients are determined by finite element analysis of the buckling of the overall stability of cold-formed elements of light steel thin-walled structures using the software package. Result. This analysis results in a table of total weight coefficients for cold-formed thin-walled rods, which can be presented as a table for calculations on medical indicators—a comparative analysis of the inverse numerical-analytical calculation method with the finite element method using the computer program.

Keywords: stability, finite element method, thin-walled cold-formed profiles, steel, coefficients, software package, construction