NUMERICAL STUDY OF STRESS AND DEFORMATION IN THE CONSTRUCTION OF THE DOUBLE-LAYER ROOF FOR VERTICAL CYLINDRICAL STEEL OIL TANKS ЧИСЛЕННЫЙ АНАЛИЗ НАПРЯЖЕННО-ДЕФОРМИРОВАННОГО СОСТОЯНИЯ КОНСТРУКЦИИ СТРУКТУРНОЙ КУПОЛЬНОЙ КРЫШИ ДЛЯ РВС

The present article deals with the calculation and comparative analysis of stress and deformation in the double-layer roof for large oil tanks when using three different modules: a parallelepiped, a triangular pyramid and a rectangular pyramid. For modeling stress and deformation in the supporting elements of a dome roof the method of finite elements is the most suitable one to be applied. For the analysis and optimization of the construction of a double- layer dome roof with the diameter 60-100 meters software package SAP2000 was used, which enables optimizing structural modules, at the same time reducing the dead load, as well as the stress and deformation in the rods. The article provides information on dependence of the dead load and stress on the distance between the layers of the roof, along with the numerical values of