Fluid - Structure - Soil Interaction of Cylindrical Liquid Storage Tank Subjected to Horizontal Earthquake Loading

Shallow founded tanks are strategic structures used to store a variety of kind of liquids. The fluid develops hydrodynamic effect on solid domain of container during an earthquake. This paper provides the theoretical background for numerical model on seismic response of fluid-structure-soil interaction. The Finite Element Method (FEM) was used for seismic response of shallow founded cylindrical container. The Fluid- Structure-Soil interaction of shallow founded tank was analysed according to theories of I. Limit States - the ultimate limit state (ULS) and II. Limit States - the serviceability limit state (SLS) pursuant to EN 1997-1. Summary of the results: the maximum rotation of foundation is growing with the reduction of the stiffness of the subsoil and the vertical and horizontal bearing capacity depends on the strength properties of the subsoil

Strength Tests of Concrete Specimen Exposed to an Aggressive Environments

The paper presents the results of static tests of the concrete beams exposed to the aggressive environment in the agricultural building. The long-term effect of an aggressive environment was expected. The aim of analysis was to evaluate the condition of the ceiling panels. Static tests have provided information on the possible modulus of elasticity and the classes of concrete used to make the beams. The concrete beams with higher structure porosity and lower bulk density showed lower strength values and lower modulus of elasticity values. The knowledge gained from the analysis of beams will be used for comparison with the results obtained from the ceiling panels

Parametric simulation of ceiling panels exposed to aggressive environments

The subject matter of the contribution is findings obtained from a parametric simulation of ceiling panels behaviour under a change of determined parameters. The optional parameters included concrete strength, reinforcement cross-section area, and concrete covering. The experiment investigated an impact of the given parameters changes onto the element resistance which was evaluated on the basis of the ultimate state of usability, namely from the point of view of crack checking and deflection measuring. Panel behaviour was presented by a load-deflection relation and crack topograph

Selected findings from parametric studies determining the resistance of concrete panels in real terms

In the article selected results of parametric analysis of lightened reinforced concrete panels used in agricultural objects are presented. The aim of the analysis was to devise a parametric model that can be later on used for the simulation of behaviour of real ceiling panels when changing predefined parameters