Розрахунок статичної міцності опорних конструкцій баку СВБ АЕС

Safety-critical tanks (SCTs) are components of nuclear power units. For extending service life of these tanks, utmost importance calculating their strength. The purpose of this study is to assess emergency desalinated water reserve tank (EDWRT) structural elements strength and support column buckling under the following loads: roof self-weight, snow load, and wind load. The calculations were performed using two methods: analytical and numerical (finite element method with the ANSYS software). The following characteristics were determined: roof structure transverse deformations and central support column axial deformations; normal stresses; reactions and bending moments in fixations of structures. A comparison of the results from both methods validated the use of finite element models for further analysis. An essential step involves determining safety and stability factors for the structures at critical cross-sections. These factors substantiate the extension of SCT service life, and their determination methodology is outlined in the national building code DBN V.2.6-198:2014.