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Bridge on the II/369 road
Gratza, Jonáš ; Požár, Michal (referee) ; Panáček, Josef (advisor)
The content of the thesis is solved by a road bridge on one span. The bridge is on the road II / 369 across the river Branná. In this work we were drawn from three studies which option was selected No.1. It is post-tensioned plate-grinder construction. Static model with Load Model and its effects was solved in Scia Engineer 15.2. Opinion are processed manually, according to EC. Wind load, snow and horizontal forces from traffic were neglected.
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Analysis and design of a multi-storey reinforced concrete load-bearing structure
Fojtek, František ; Laníková, Ivana (referee) ; Šimůnek, Petr (advisor)
The diploma thesis deals with the analysis of the behavior of a multi-storey reinforced concrete load-bearing structure. The building is designed as a monolithic skeleton. The main load-bearing structure of the building consists of transverse frames, which are connected by beams, on which a continuous ceiling slab is placed. The rigidity of the building is ensured by a reinforced concrete core. The building is based on the base plate. The design analysis was performed by the finite element method in the SCIA 21.1 program. The structure is designed and assessed according to ČSN EN 1992-1-1.
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The manufacturing of the aluminium-zinc coated steel sheet transformer
Sykáček, Jiří ; Šlais, Miroslav (referee) ; Císařová, Michaela (advisor)
The project developed in within the framework of Magister ´s studies of field M-STM is elaborated to meet customer requirements for manufacture of transformer station, which is intended for use in photovoltaic power station. Design and drawing documentation were prepared using 3D CAD System Solid Edge. Self-supporting frame of the transformer station welded from separate parts made from alu/zinc plates is in the form of a technological unit, which is equiped with electrical technology needed for safe and failure-free operation of the power station. It deals with technology of components production, including subsequent process of hard soldering and surface finishing. As the best solution was chosen processing of forming punching and using brake press. Chosen production methods are assessed not only form point of view of used technology, including the technical pitfalls associated with processing of alu/zinc plates, but also in terms of economic costs of manufacture throughout the transformer station. The forming processes are made using punching press TRUMPF TC200R, with rated shear force of 165 kN and brake press URSVIKEN Optiflex with rated compressive force 1 300 kN. Forming tools are optimally selected according to parameters of different types of parts. Finally, it compares the technical-economic aspects of production transformer station made of alu/zinc plates compared with whole-concrete construction of the station using bell-casting method.
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Highway bridge over the II/464 road
Mezera, David ; Koláček, Jan (referee) ; Panáček, Josef (advisor)
The content of the thesis is to solve the relocation of the II / 464 road. It is a bridge with one field of post-tensioned concrete. 3 studies were designed, one of which was elaborated within the framework of this thesis. Was selected option no. 3 double plate-grinder construction. The static model was created in Scia Engineer 2.15 and reports were processed manually, according to EC. The effects of wind, snow, acceleration and braking forces have been neglected.
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Stress-strain analysis of screw-bone system used in a plate-fixation of fractures
Kalnický, Jakub ; Valášek, Jiří (referee) ; Marcián, Petr (advisor)
In the field of orthopaedics and traumatology, a whole series of problems appear related to fracture fixation by means of various types of plates. Appropriate application of the plate is the difficult task that a doctor needs to deal with in the operating room. Regarding mechanics, the number of screws and their spacing have a major impact on the healing process. If there are too many screws or lack of them, the fracture does not heal properly. This can lead to implant failure. This work deals with stress-strain analysis of screws and bone tissue with a fracture fixed by LCP. It deals with the influence of different geometrical configurations of the screws on the stress, deformation and strain of the system. For this purpose, the computational modelling was used by means of the finite element method. Two computational models have been created, on which different screw arrangement was analysed. The first computational model represents diaphysis of the femur that is at the beginning of the healing process. For the four load models and eleven geometric configurations and number of the screws, a total of 44 computations were performed. The second computational model represents the distal part of the femur. Femoral geometry model was created based on CT (computed tomography) examination, geometric model of the plate was created by 3D scanning. Deformations and stresses were compared in the three geometric configurations of the screws during the healing process.
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Solution technology of cooling tower component
Dobiáš, Radek ; Kubík, Roman (referee) ; Kalivoda, Milan (advisor)
The content of this diploma thesis is solution of production technology of cooling tower component. A model the cooling tower according to customer specifications is designed. There are selected 2 plates from steel construction that will be machined by plasma cutting. The technology of production of the plates is also proposed. Technical and economic evaluation of production compares 2 versions of plate production using unconventional metal cutting methods.
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Analysis and design of a multi-storey reinforced concrete load-bearing structure
Fojtek, František ; Laníková, Ivana (referee) ; Šimůnek, Petr (advisor)
The diploma thesis deals with the analysis of the behavior of a multi-storey reinforced concrete load-bearing structure. The building is designed as a monolithic skeleton. The main load-bearing structure of the building consists of transverse frames, which are connected by beams, on which a continuous ceiling slab is placed. The rigidity of the building is ensured by a reinforced concrete core. The building is based on the base plate. The design analysis was performed by the finite element method in the SCIA 21.1 program. The structure is designed and assessed according to ČSN EN 1992-1-1.
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Computational tool for a stress-strain analysis of the mechanically loaded circular and annular plate
Dohnal, Jakub ; Majer, Zdeněk (referee) ; Ševeček, Oldřich (advisor)
The bachelor's thesis primarily deals with the creation of a computational tool for stress-strain analysis of rotationally symmetric circular and intercircular plates. The commercial software MATLAB and its component APP DESIGNER were used for this purpose. The program uses analytical relationships of general solid mechanics to solve differential equations for several types of plates and loads. Part of the bachelor thesis is also a parametric study comparing the outputs of analytical and numerical model based on the finite element method, aimed at identifying the practical application of the analytical solution and its accuracy for a particular case of the plate.
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