On the resistance of arbitrarily ring‐stiffened welded bins subject to axial compression

Ring-stiffened flat bottom tanks are widely used in many industries for the storage of liquids, such as oil, fertilizers, water, sewage and sludge. Material efficiency is achieved by combining thin plates with ring-stiffeners. When bin covered a dome or cone roof, high meridional forces due to live snow loads may trigger axial buckling shell. Ring stiffeners beneficial, not just against wind, but reduce risk stability failure silos caused compression well. This paper presents outcome parametrical study concerned most effective placement stiffening rings depending on stiffener distance, cross-sectional area slenderness cylinder. Buckling curve parameters deduced using modified capacity curve. These allow direct application analysis results hand calculation procedure that enables practitioners take into account benefits, which come ring compression.