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Atmospheric tank calculation

The water tank shown below was analyzed with ANSYS Enterprise Mechanical. Load factors and acceptance criterions was taken from Eurocode and NORSOK. 

The hydro testing case uses an overpressure of 0.01bar (1m water) in addition to the hydrostatic water pressure and weight. The hydro testing analysis did also include 50% of 100 year return period wind.

The ULS stresses in the plates and stiffeners are verified to be in compliance with to Eurocode 3 and NORSOK. The maximum deflection found in the SLS case was 13.96 mm.