The steel silos are interesting complex facilities. In order to ensure unloading ofwhole amount of stored product by gravity, the steel silos are often placed on supportingframe structure. Values of stresses in the joints between the thin walled shelland supporting frame elements are very high. It can causes local loss of stability inthe shell. To prevent its local buckling, many designers put stiffening elements abovethe supports. Here the question is how high should be the stiffening elements? Theright solution is that they should reach that level till which the values of the meridionalnormal stresses above the supports and in the middle between them are equalized.Under this level the cylindrical shell will be considered as a ring beam, stiffenedby elements above the supports. Above it, the cylinder can be calculated as continuouslysupported shell. But where is this level? A lot of researchers worked on valuesand way of distribution of normal meridional stresses above the supports of the cylindricalshells. As a result of their efforts are determined critical height Hcr of theshell and the ideal position HI of intermediate stiffening ring. But these heights areconsiderably different between each other. To which of them our vertical stiffeningelements should achieve?