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ABSTRACT
Tanks are building structures that are used mainly for capturing and treating water but also other liquids. Different materials and shapes are used for their construction, also the use of tanks can be different. The floor plan shapes of the tanks depend mainly on the purpose of use, on the technological process taking place in the tank, and the method of construction as well. The most common floor shapes of tanks are rectangular, polygonal, circular, or other.
Tanks with a circular floor plan are advantageous from both the static, but also an economic point of view. The construction of the bottom depends on the properties of the subsoil, groundwater, exploitation and dimensions of the tank, and due to the stored liquid. The thickness of the bottom depends on the compressibility of the soil.
In this paper, the wall of a concrete cylindrical tank is assessed for different types of support, for different load cases using the RFEM computer program. Gradually, the volume of water in the tank, and the depth of immersion of the tank into the foundation soil will change. Extremes will be considered, full tank not buried - empty tank completely buried, but also other load combinations. In the case of foundation soil, a one-parameter subsoil model is considered, for which it is necessary to calculate the compressibility coefficient of the subsoil.
Finally, a comparison and selection of the design of the tank foundation, which is the most advantageous for the given construction, is given.
Keywords: FEM, foundation soil, tank cylindrical
INTRODUCTION
Tanks serve as reservoirs for various liquids, semi-liquid masses, or bulk materials, and volatile substances. The use of these building structures is in various areas: in construction, in the chemical, food and other industries, also in agriculture, but they can be used for the supply of drinking, industrial or fire water.
The floor plan is influenced not only because of the use of the tank, but also by the dimensions, the method of construction and the material used for construction. Regarding the materials, we know masonry, steel and concrete tanks, while concrete (plain, reinforced concrete, prestressed) is used most often.
Water retention tanks are usually rectangular or circular in plan and are covered by a ceiling. Depending on the...