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Complex evaluation of brittleness of selected building composites
Machačová, Denisa ; Veselý, Václav (referee) ; Keršner, Zbyněk (advisor)
Specified topic of the thesis is a multilevel evaluation of brittleness of selected building composites. The work deals with the opinions of fracture parameters of test specimens of lightweight and ordinary concrete. Specimens further differed fibres content in concrete mixtures, their type and length. The work is divided into two parts, theoretical and practical. The theoretical part conceives composite materials and introduction to fracture mechanics. The practical part describes the different steps for fracture-mechanical parameters evaluation using StiCrack and Excel Visual Basic software. The main part of the work is to evaluate the brittleness of different test specimens, taking into account the type of concrete mix and type of fibres.
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Deformation Surveying of Supporting Wall
Zbránek, Jakub ; Vitula, Alexej (referee) ; Švábenský, Otakar (advisor)
The main subject of this diploma thesis is monitoring of horizontal and vertical displacements of the supporting wall in village Smědčice. The thesis describes the whole production process, from construction of the reference net and the net of observed points to the final review. There are also displayed main theoretical basis. Final outputs of the thesis are charts, graphical sketches, tables and final word summary.
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L'analyse expérimentale des paramtres dynamiques du rail grille
Podolník, Adam ; Tomandl, Vladimír (referee) ; Smutný, Jaroslav (advisor)
In terms of deciding on the appropriate use of the railway superstructure assemblies in both the recommendations arising from the theoretical analysis (modeling), as well as recommendations obtained under static and dynamic testing of the finished product play an important role. Such tests can then be applied in the laboratory or in the field. The thesis will be devoted to operational testing of selected track grid structures in situ. For measurement purposes an appropriate measuring point will be chosen and the methodology of measurement will be proposed. In terms of track geometry sections in curves will be selected. On the basis of tests carried out dynamic parameters of structures will be determined. To their evaluation suitable mathematical system will be chosen. It assumes the use of mathematical methods in time and frequency areas. In the thesis there will also be a comparison of the parameters of the tested structures. Based on the measurements it will be a source of recommendations for the practice.
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Geodetic Deformation Measurement of Wide-Span Timber Roof Structures
Karas, Jindřich ; Švábenský, Otakar (referee) ; Bureš, Jiří (advisor)
The aim of this thesis is deformation measurement of wide-span timber roof structures of swimming pool in Brno - Kohoutovice. The thesis deals with measuring of other stage, processing of surveying data, evaluation of deformation and graphic interpretation. Results of measurements follows up two stages in years 2009 and 2010. The part of the thesis is calibration measurement of surveying instruments and used measuring accessories.
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Monitoring of Rock Blocks Movements
Nezvalová, Kristýna ; Kalvoda, Petr (referee) ; Hanzl, Vlastimil (advisor)
The thesis deals with monitoring of rock blocks movements near sinking stream Bílá voda situated near the village Holštejn in Moravian Karst. The thesis follows up results, which were gained in years 2004-2011. The aim of thesis is survey of the 16th stage in summer 2012 and 17th stage in autumn 2012, following processing of surveying data and evaluation of space movements. Achieved results are compared mutually and they are analysed towards results of previous periods. The final results are documented numerically and graphicallyl.
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Dynamic analysis of structure loaded seismic loads
Havlíková, Ivana ; Nevařil,, Aleš (referee) ; Vlk, Zbyněk (advisor)
The purpose of my master’s thesis is the solution steel hall with concrete columns, that is loaded by an earthquake. This simulation program was used RFEM. To calculate was used the spectral and temporal analysis, and that on models of structures with several combinations of materials. The analysis was performed for both the general direction of the earthquake, so for combinations of directions according to standard procedures in EC8.
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Monitoring of the Rock Blocks Movements in the Bila voda Sink
Moštěk, Václav ; Kalvoda,, Petr (referee) ; Hanzl, Vlastimil (advisor)
This thesis describes the alignment, processing and data evaluation of the 14th and 15th period (in the year 2011) of the monitoring of moving rock blocks in sagging Nová Rasovna situated near the village Holštejn, Czech Republic. These two periods are compared with each other and afterward the coordinates from 2011 are compared with coordinates from all previous periods, mainly with the zero period.
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GNSS Deformation Measurement of Railway Structure
Buday, Michal ; Bureš, Jiří (referee) ; Švábenský, Otakar (advisor)
The purpose of this thesis is to evaluate the train bridge shift using the satellite geodesy methods. Introductory part of the thesis is devoted to GNSS basis. The following part discribe work with commercial software Leica Geo Office. Results of calculations were transformed to local topocentric frame. In this frame were compared differencies between GNSS meassurment and classical terrestrial methods. Part of this thesis is to consider tropospheric refraction influence based on used tropospheric model. The end of this thesis is devoted to consider hypothesis that reference point which was considered as solid does not show trend of changing it's location. For this purpuse BERNESE GPS Software was used. GNSS meassurments were linked to the nearest points of permanent GNSS networks. Results are documented numerically and graphically.
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