Review article

The article submits a theoretical substantiation of calculation of reduced cross-sections at multi-parametric loading of bar elements in designs from steel cold-formed profiles. In the substantiation, the author uses the «section» algorithm and provisions of the Eurocode regarding reduced section calculation. For simplification of solving the problems of strength and overall stability, the reduced sections are replaced with not reduced ones. For this purpose, bar elements are additionally loaded with fictitious forces compensating the reduction.