Soil-Structure Interaction of Cylindrical RC Tank of Variable Wall Thickness under the Constant Thermal Loading
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Submission date: 2020-04-09
Final revision date: 2020-07-09
Acceptance date: 2020-07-13
Publication date: 2020-12-11
Archives of Civil Engineering 2020;66(4):269-285
An effective method for the analysis of soil-structure interaction including the behaviour of cylindrical storage tank with varying wall thickness under the action of constant thermal loading is presented. Elastic half-space and the Winkler model have been used for the description of subsoil. The soil-structure interaction is described by using the power series. A computational example of reinforced concrete tank loaded with constant temperature is given. The analysis of a hydrostatically loaded cylindrical tank performed for the model incorporating elastic half-space shows decrease of radial displacements as well as substantial changes in the distribution of bending moments when compared to the Winkler foundation. Additionally, local increase of subsoil reaction around the slab circumference is observed for the case of elastic half-space, in contrast to the Winkler model. However, in the case of a tank loaded with constant temperature, the solutions for both subsoil models do not differ significantly.
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