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Modernization of welding processes in nuclear power plants
Jochymek, Tomáš ; Slováček, Marek (referee) ; Kubíček, Jaroslav (advisor)
The theses is focused on the use of innovative welding method in the repair of the sealing surface of the valve of the Temelín nuclear power plant. After considering all the options, the use of mechanized manual TIG method was chosen for the implementation. In the experimental part, the design of the repair was made on a test sample, where the cladding was performed with a welding set from EWM. Subsequently, verification was carried out by non-destructive testing, where visual inspection, dimensional inspection and capillary testing were carried out. From the destructive testing, a macrostructure check and a Vickers hardness test were performed. As a result of the evaluation, due to the satisfactory tests and the time saving, the proposed repair technology was found to be suitable for solving the problem.
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Laser preheating during of cobalt alloy cladding
Nevřivý, David ; Slováček, Marek (referee) ; Šebestová, Hana (advisor)
In this work, the possibility of using a laser beam for local preheating in combination with the MIG method in the cladding of Stellite 6 cobalt alloy on X12Cr13 steel was investigated. The surface temperature during heating by the laser beam, the temperature cycles and the cooling rate in the heat afected zone at different beam-arc distances were measured. The patterns were assessed based on the geometry and dilution achieved. The structure was evaluated in terms of macro and microstructure. The microhardness achieved was measured for its distribution throughout the entire clad with a focus on the heat affected zone. The performance parameters of the welding source were varied to evaluate their impact on the resulting dilution and changes in the geometry of the design. To achieve higher process efficiency, the cladding speed was increased and the clads were evaluated in terms of macrostructure and resulting clads geometry.
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Static design of the structure composed of combination of steel and structural glass
Potůčková, Simona ; Melcher, Jindřich (referee) ; Karmazínová, Marcela (advisor)
The objective of the bachelor thesis is to design the load-bearing construction system and its cladding made of a combination of steel and structural glass and to verify its sufficient resistance. The object has rectangular floor plan with dimensions of 7,5x10,5 m and and its total height is 24,5 m. The building is located at the suburban area of the city Ostrava, precisely Ostrava Poruba. The construction is composed of a ground floor and six upper floors. The main load-bearing system consists of steel frame formed by six tubular columns connected beams and sway bracings ensuring the spatial rigidity of the structure. The object was designed according to currently valid standards using ULS and SLS verification.
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The warehouse in Polna - rough upper construction
Chroustovský, David ; Řihák, Pavel (referee) ; Biely, Boris (advisor)
This work includes a step of rough upper construction of warehouse in Polná. Part of this work is the construction and technology report, technical report of site facilities, design of mechanical assemblies, technological prescription for ferroconcrete skeleton, technological prescription for sandwich panel cladding, a report on the wider transport relations, a report on the protection of health and safety on site. Attachments include drawings of building equipment, layout scheme cargo trailers, assembly diagrams, calculation of weight trailers, routes wider transport relations, budget and schedule.
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Construction Project for Implementation of Industrial Hall for Automotive Industry
Světlík, Jiří ; Liška, Pavel (referee) ; Nečasová, Barbora (advisor)
This diploma thesis deals with construction technology project of a newly-built automotive industrial hall on the complex Hauk – Police nad Metují. The aim of the main construction object is to build a double aisle steel hall for industrial purposes including maisonette built-in which will become social and technical facility for prospective workers. The main construction facility is complemented by secondary structures, creating functional complex for required purposes. The thesis is focused on implementation of the main load-bearing prefabricated steel structure and cladding made of selected system. An integral part of the thesis include main technology phases realization study of the main construction object, a technological prescription filled-in with assembly drawings, a design of machine assembly including dealing with its transportation, a site equipment project, time schedules, a budget, a test and inspection plan and a security measures design for selected risks. The thesis is suplemented by a specialized section dealing with the heating of reinforced landscaping.
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Comparison of cladding by the electron beam and plasma process
Rudyk, Martin ; Mrňa, Libor (referee) ; Kubíček, Jaroslav (advisor)
This diploma thesis deals with plasma cladding and electron beam cladding. The theoretical part is divided into several chapters which is focused on description of these methods of cladding process. In the practical part the particular experiment of electron beam cladding (EBC) and plasma cladding (PC) is described. In the conclusion overall results were assessed, both methods were compared each other and possible exploitation in industry was described.
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Firehouse
Výšek, Jan ; Burianová, Lenka (referee) ; Kacálek, Petr (advisor)
Diploma thesis solves the creating of layout study and creation of documentation for the realization new fire station. In the object is contemplated with placement of regional fire brigade unit, category JPO I and volunteer firefighter unit of city together, category JPO III/1. Fire station category will be considered as P1. The object consists of two structurally and functionally different parts. The first part is made of ceramic masonry with external thermal insulation composite system. Here are located administrative and operational premises. This section has two floors. Second part is solved as single-storey skeletal system made of reinforced concrete, roofed by prestressed concrete trusses. This part contains technical facilities and a garage. The cladding of the skeletal part of building is designed by using sandwich facade panels. Object has dissected ground plan, maximum dimensions are 54,80x22,20 m. Building has no basement and is roofed by flat roofs only. Object is located in peripheral locality of the city Jaroměř. Surrounding terrain is flat. Solved area contains a few related objects.
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Construction Technological Project of a Heat Feeder in South Bohemia
Handlíř, Jan ; Hejl, Martin (referee) ; Mohapl, Martin (advisor)
The subject of the diploma thesis is a technological construction project of heat feeder on the hot water pipeline between České Budějovice and nuclear power plant Temelín. The main object is an industrial hall made of steel and brick administrative part. The hall is a steel structure clad with sandwich panels. The administrative part is single-storey building from bricks and has a flat roof. The construction also includes an access road with car park.
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Theoretical design of the steel production hall
Ratica, Filip ; Strejček, Jan (referee) ; Kalivoda, Milan (advisor)
The bachelor´s thesis contains a summary of the steel structural types of the halls and the principles of designing the steel supporting structure of the hall building. The thesis deals with the design of the layout of the hall, the individual elements of the structure, such as columns, purlins, trusses, crane runway and also roof and perimeter cladding. Furthermore, the thesis contains machining and other processes in the production of steel structural elements of the hall. And finally, the technical and economic requirements and costs of the construction of the steel hall are evaluated.
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Multifunctional Centre of Civil Activities
Novák, Pavel ; Hubáček, Petr (referee) ; Hubáčková, Blažena (advisor)
The masters thesis dealt with reconstruction of the complex military garages built in the mid 20th century. The site is located in Brno, close to Peace Square, Lerchova 915/62, Brno-Stránice, 602 00 Brno. Area of land area is 5,384.25 square meters. Reconstruction involves two detached single-storey buildings, the street Lerchova object and the object at the Valley Street. The goal is the maximum possible use of existing quality substructure, which is a combination of internal reinforced concrete frame and brick outer shell. The work is divided into a comprehensive layout of both buildings and detailed sub-project for the construction project on a subject at street Lerchova. Reconstruction of the resolves completely change the layout and especially the concept of architectural design. In terms of architecture, wider relations into account the existing development, which tries to resemble the representation. The building is at street Lerchova basement one floor, built up area is 620.5 square meters. Reconstruction of superstructure solves one floor, making new pitched roof and building a walkway that allows connection between the two objects. Revitalization is due on the requirements of the public and addresses the widespread use of indoor and outdoor spaces as much as possible. It is particularly emphasized promote leisure activities not only public, but especially young people and support for education, mental and physical, education and counseling. We can not forget easily to most complex space by persons with limited mobility.
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