ВПЛИВ КОНСТРУКТИВНИХ ОСОБЛИВОСТЕЙ НА НАПРУЖЕНО-ДЕФОРМОВАНИЙ СТАН СПЕЦІАЛЬНИХ ОБОЛОНКОВИХ СИСТЕМ

Abstract

The article is devoted to the roofing and structures, in the form of special shell systems made of thin-walled cold-deformed profiles. The geometric characteristics of the main supporting element of the discussing systems are refined. Numerical modeling and analysis of the stress-strain state of the shell systems under consideration from various loads and their combinations, has been carried out. On the basis of the calculations and analysis, the critical loads of stability loss of a flat bending shape are determined, and also the criteria for the strength of the structures. The research was conducted on the basis of a finite element model verified by the full-scale experiment and taking into account the sequence of erection of systems, that is, under the condition that the designed structure works as the single- and as the three-layer system.