Abstract:

This paper presents the calculation and design of a horizontal steel tank (gas holder) for oil storage with a capacity of 50 m³. The aim of the work is to develop and verify the tank´s design parameters to ensure its strength, stability, and reliable operation. The main design stages are considered: determining the optimal geometric dimensions of the tank, calculating the wall thickness, checking the stability of the wall and the bottom, and analyzing the wall-to-flat bottom junction. The verification established that installing radial stiffeners on the bottom is required to ensure strength in the junction area. Steel grade VSt3sp5-2 was chosen as the main construction material. An LL-600 manhole was selected and justified for tank maintenance. The performed calculations confirm the strength and stability of all structural elements under the given operating conditions.

Keywords: flat bottom, stability analysis, strength calculation, tank design, oil storage, horizontal tank, gasholder