PSI - Issue 36

Mykhailo Hud et al. / Procedia Structural Integrity 36 (2022) 79–86 Mykhailo Hud / Structural Integrity Procedia 00 (2021) 000 – 000

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Figure 8. Isopoly deformation of a steel cylindrical tank: a) isopoles of axial displacements ; b)isopoles of axial displacements ; c)isopoles of axial displacements ; d) isopoles of axial displacements UY; e) isopoles of axial displacements ; f) isopoles of axial displacements .a

The obtained numerical values of stresses in the elements of the steel cylindrical tank indicate that the stresses do not exceed the tensile strength, the error of the results of calculations performed by the finite element method does not exceed the limit values. 4. Conclusions There were considered the classification and basic typification of vertical cylindrical steel tanks. The basic requirements to static calculations of filled vertical cylindrical steel tanks are revealed and the analysis of the basic damages of the filled vertical steel cylindrical tanks arising owing to action of seismic is carried out. A finite-element model of a filled vertical steel cylindrical tank is developed. Using the finite element method, the calculation of the filled vertical cylindrical steel tank for the action of seismic loads was performed. Based on the SSS (stress-strain state) analysis, the magnitude and distribution of stresses and strains of a filled vertical cylindrical steel tank under the action of seismic loads are obtained. It is established that the proposed method of modeling and calculation of SSS parameters of a vertical cylindrical steel tank gives reliable results, and the calculation error does not exceed the established values. References American Welding Society, 1985.New England Water Works Association, AWWA D100-84. Barabash M.S., Kiryazev P.M., Lapenko O.I., Romashkina M.A.2019. Basics of computer modeling. A.P. Shirt. 2016.Basics of design automation in construction: a synopsis of lectures for students majoring in "Construction and Civil Engineering". Ministry of Construction of Ukraine, 20014. DBN B.2.6-198: 2014 "Steel structures. Design standards ". Ministry of Construction of Ukraine, 2006. DBN B.1.2-2: 2006. Loads and impacts: Design standards. European Committee for Standardization. 1998.Eurocode 8, “D esign provisions for earthquake resistance of structures, Part 1- General rules and Part 4 - Silos, tanks and pipelines”. Haroim, M.A., and Abdel Hafiz, E.A. 1986. A Simplified Seismic Analysis of Rigid Base Liquid Storage Tanks Under Vertical Excitations with Soil- Structure Interaction, International Journal of Soil Dynamics and Earthquake Engineering, 5 (4). 217-225. Malhotra, P. K. 1997. „ TSiew method for seismic isolation of liquid- storage tanks.” J. Earthquake Eng. Struct. Din. 839-847. American Petroleum Institute. 2003.Welded Steel Tanks for Oil Storage. API Standard 650, 7th Edition. American Water Works Association 2003. AWWA Standard for Welded Steel Tanks for Water Storage. American Society of Civil Engineers .1984. Guidelines for the Seismic Design of Oil and Gas Pipeline Systems. American Water Works Association.1985. AWWA Standard for Welded Steel Tanks for Water Storage.