No abstract

The use of radar interferometry to measure dynamic response is now increasingly popular. The main advantage is a measurement of displacements. In this way, we obtain direct design parameters. Interferometric radar provides a cost-effective way to monitor bridges based on dynamic displacement measurement without traffic restrictions. The advantages and disadvantages are discussed. Comparing the numerical result with the test data provides a valuable opportunity to define a useful performance indicator.

The paper deals with design of model and verification of a pile loaded by pressure. The pile is embedded in the layered ground mass. Its model has been created using the ANSYS software system. The obtained results have been compared with results of the pile loading test performed during the construction of a multifunctional building. In the conclusion the results have been presented in graphs.

The paper deals with the solution of the problem of the buildings foundation in confined spaces of urban development. The most commonly used solutions are the underground walls, which provide space for the construction pit during the construction of underground parts of buildings. They must meet certain conditions in the urban development. The paper focuses on the analysis of the interaction of wall systems (mainly sheeting structures of building pits) and the surrounding earth massif. The distribution of the contact stress influences decisively the dimensioning of the foundation structure and the assessment of the foundation soil in terms of limit states. Similarly, other load-bearing structures ensuring the stability and usability of a building have been affected by an increase in the deformation load, which may cause a noticeable increase in internal forces and bending moments, which are not normally considered or assumed in static calculations of external loads, or their determination is based on false assumptions. If the magnitude of the deformation effects is incorrectly determined, the serviceability or loss of stability of the building structure may be limited. For this reason, to ensure a reliable and economical design, it is necessary to describe as closely as possible the interaction of the foundation structure with the subsoil. A prerequisite for a correct and economical solution to the problem is to capture the physical nature of the task at all stages of the solution. The use of the possibilities provided by the mathematical apparatus of the most versatile numerical method - finite element method (FEM) also contributes significantly to a more complex analysis of the problem. The practical lining wall model of the Eurovea shopping and entertainment center in Bratislava, Slovakia has been chosen as a practical example of the calculation. The main reason was the availability of the results of available inclinometric measurements. These have been compared with the results of the structural design model. The task was to create a model of the underground (lining) wall and compare the obtained results with the inclinometric measurements on realized objects. The obtained results have been presented in graphical form.

The paper deals with dynamic analysis of a container. The analyzed structure consists of a steel support structure and a cylindrical container. The container is used for storage of road salt and other spreading materials during winter road maintenance. Three variants of support system of a structure have been analyzed. These have been introduced into the model as different boundary conditions. The modal analysis was performed, whose results are eigenfrequencies and eigenshapes of the structure. In the final part, the results obtained from the seismic analysis of the structure (displacements and internal forces) have been presented.