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Experimental determination of the hydrodynamic load of the flooded bridge model
Naiser, Dominik ; Hrdlička, Libor (referee) ; Zubík, Pavel (advisor)
The diploma thesis deals with experimental determination of hydrodynamic load on the overflowed bridge deck model. In the first part of the thesis the author describes the analysis of the problem together with the basic physical laws and principles that are used or assumed in the measurement itself. In the second part the author describes the measurements in the laboratory of the Faculty of Civil Engineering and its gradual processing. At the end of the work are described the results of measurement, their comparison with numerical modeling, other authors and their possible use in practice.
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Reconstruction III/00222 between road II/425 and Ladná
Navrátilová, Pavlína ; Loučka, Miroslav (referee) ; Matuszková, Radka (advisor)
The subject of this work is the proposal of reconstruction of the existing road III / 00222 according to the amended ČSN 73 6101. This reconstruction is limited in space. The study includes the design of new design elements and the design of a new bridge structure under which the railway tracks are located. The content of the thesis is a complete reconstruction of the road and the design of the bridge structure.
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Diagnostics of the bridge structure
Wünsche, Dominik ; Cikrle, Petr (referee) ; Kocáb, Dalibor (advisor)
The diploma thesis deals with the issue of bridge strustures, especially their diagnostics and evaluation. The work consists of two parts, theoretical and practical. The theoretical part deals with the basic description and division of bridge structures, brigde inspections and test methods, especially those that were used in the thesis during bridge inspections. The practical part includes a visual inspection of two bridges, their description, detection of faults and defects and their documentation. In the practical part, the basic maretial characteristics of concrete bridges were determined, the condition of structures was assessed and a proposal for the elimination of failures and defects was developed. In the end, the work deals with the evaluation of both bridges.
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Comparison of assessment of the state of bridges in Germany and the Czech Republic
Víša, Ondřej ; Stehlík, Michal (referee) ; Cikrle, Petr (advisor)
With the increasing age, amount and demands on the quality of bridges, the role of assessing their condition is increasingly important both in the Czech Republic and in Germany. This bachelor thesis compares the general state of bridges in both countries in its theoretical part; furthermore it compares the standards, terminology, the way of keeping record and evaluation. The practical part is reserved for survey and assessment of a bridge in Germany and for comparison purposes also in the Czech Republic. In its end the thesis summarizes the most fundamental differences between Czech and German methods.
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Relocation of roads II / 431 and III / 4317 near the village of Kojátky
Janko, Vojtěch ; Loučka, Miroslav (referee) ; Matuszková, Radka (advisor)
The aim of this thesis is the relocation of roads II/431 and III/4317 near Kojátky village. This is due to the unsuitable layout of current routes which were poorly arranged because of too many horizontal and vertical curves with small radius. Another reason was a bad technical state of bridge structures, one of them was in serious disrepair. The project deals with the relocation of current roads to more suitable routes including the option allowing access to the nearby estates and the connection to the existing cart tracks. The project also addresses two bridge structures across the streams.
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Stress and deformation analyses of the bridge near the Jedov mill
Hort, Michal ; Kovář, Jaroslav (referee) ; Fuis, Vladimír (advisor)
Bridges serve to many people every day, so it is necessary to be concerned about theirsafety. Analysis of bridge superstructures are used to increase their safety - and this is also the mainsubject of this thesis. Specifically, it is the analysis of the pedestrian bridge located near Jedov Mill on the Oslava river. For the stress and strain calculations, the method of joints is used, and that iscompared with the finite element method. During the comparison of the methods which hadbeen used, it was found, that the method of joints is suitable for identifying critical points, but cannot accurately determine stress values. While the finite element method can both, identify critical locations and determine the exact stress values. These calculations determinedthe critical locations on the footbridge, which are in the outmost members of the structure. By enlarge their cross-section would increase the safety of the structure. Among the critical trusses do not belong trusses damaged by the footbridge crash. The safety factor of the pedestrian bridge to the elasticity limit state, which is k = 1.74, provides a sufficient reserve for the further use of the footbridge, even if the cross-sections of the above mentioned members are not increased.
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Vybrané geodetické činnosti při monitoringu a realizaci dálničních mostů
URBAN, Josef
This thesis deals with the monitoring of the bridge object SO211 on the D3 0310/II Hodějovice - Třebonín highway. The observed bridge structure was measured by precise levelling in stages within one year approximately every two months, while it was determined whether there were any limit deviations, therefore a change of position. The work is divided into theoretical and practical parts. In the theoretical part there are described basic information about geodetic devices and there are also explained the measuring methods. The practical part contains a description of the object including how its local measurement network was created. The main part is then the processing of the measured values, which are compared with each other in program Microsoft Excel, where graphs are created for individual stems. Finally, all measured points are evaluated and compared with each other and with the standards for limit deviations.
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Diagnostics of the bridge structure
Wünsche, Dominik ; Cikrle, Petr (referee) ; Kocáb, Dalibor (advisor)
The diploma thesis deals with the issue of bridge strustures, especially their diagnostics and evaluation. The work consists of two parts, theoretical and practical. The theoretical part deals with the basic description and division of bridge structures, brigde inspections and test methods, especially those that were used in the thesis during bridge inspections. The practical part includes a visual inspection of two bridges, their description, detection of faults and defects and their documentation. In the practical part, the basic maretial characteristics of concrete bridges were determined, the condition of structures was assessed and a proposal for the elimination of failures and defects was developed. In the end, the work deals with the evaluation of both bridges.
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Relocation of roads II / 431 and III / 4317 near the village of Kojátky
Janko, Vojtěch ; Loučka, Miroslav (referee) ; Matuszková, Radka (advisor)
The aim of this thesis is the relocation of roads II/431 and III/4317 near Kojátky village. This is due to the unsuitable layout of current routes which were poorly arranged because of too many horizontal and vertical curves with small radius. Another reason was a bad technical state of bridge structures, one of them was in serious disrepair. The project deals with the relocation of current roads to more suitable routes including the option allowing access to the nearby estates and the connection to the existing cart tracks. The project also addresses two bridge structures across the streams.
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Experimental determination of the hydrodynamic load of the flooded bridge model
Naiser, Dominik ; Hrdlička, Libor (referee) ; Zubík, Pavel (advisor)
The diploma thesis deals with experimental determination of hydrodynamic load on the overflowed bridge deck model. In the first part of the thesis the author describes the analysis of the problem together with the basic physical laws and principles that are used or assumed in the measurement itself. In the second part the author describes the measurements in the laboratory of the Faculty of Civil Engineering and its gradual processing. At the end of the work are described the results of measurement, their comparison with numerical modeling, other authors and their possible use in practice.
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