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Heat treatment of formed parts
Poloch, Milan ; Peterková, Eva (referee) ; Lidmila, Zdeněk (advisor)
Bachelor thesis focusing on heat treatment of formed parts. The chapter of basic termsdeals with steels for forming. Concrete formability and influence on plastic deformationson steel properties, influence of chemical composition, structural composition and termomechanical conditions during deformation. In the larger parts of the thesis are carriedout heat treatment. The prohibited concepts of heat treatment are explained in the in-troductory question and some follow the basic methods and then the basic methods ofheat treatment such as annealing and tempering with tempering are explained. All ofthese technologies have their own subchapters and are illustrated and supplemented withgraphs and figures. The practical amount consists of plastic deformations of roller-shaped samples. The samples were deformed, measured hardness, heat treatment followed bymeasured hardness. Changes of mechanical properties on samples are evaluated.
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Sewage disposal plant
Doležal, Martin ; Kraut, Jan (referee) ; Šulák, Pavel (advisor)
This thesis deals with the design and static assessment of a concrete part of a sewage treatment plant. Specifically, the calculation and assessment of the base plate, external walls, internal walls and ceiling slabs, elaboration of shape and reinforcement drawings of selected structural element. The concrete part of the Sewage disposal plant is all below ground level. Static system and the calculation of internal forces was carried out in Scia Engineer 2011 - student version.
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Analysis of the surface after laser cutting
Narovec, David ; Sedlák, Josef (referee) ; Osička, Karel (advisor)
This diploma thesis discusses laser cutting and the consecutive surface treatment of cut parts. The theory of laser cutting is described in the first part of this thesis, including laser history and the laser emergence principle. Cut parameters and the influence of the laser cutting on the material are described later on. The next part describes the laser cutting technological possibilities and other laser technology utilization options are outlined. In the last theory part, metal surface treatment used in the experiment is covered. Coating thickness is evaluated in the practical part of this thesis, as well as roughness, microhardness, chemical microanalysis and metalography. The evaluation of the results achieved, and optimal surface treatment execution suggestions are addressed in the last part of this thesis.
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LAHOFER WINERY DOBŠICE
Nytrová, Bohdana ; Dvořák, Martin (referee) ; Myslín, Jiří (advisor) ; Hradil, Dušan (advisor)
The bachelor thesis designs new buildings of the Lahofer Winery in Dobšice u Znojma. It is based on a study carried out in the studio AG32. The complex will consist of production line and warehouses with the overall production of 1.000.000 bottles a year, altogether with a public and administration building where the wine will be exhibited. The building plot is located on the eastern edge of the land registered area of the nearby village Suchohrdly. The plot is undeveloped agricultural land full of vineyards, arable land and gardens. The ground plan is the most profound part of the design. The circumference of the building symbolizes a wine grape or wood-shavings which refer to a famous woodcarver Jan Lahofer whose name the winery carries. The many atriums create half-enclosed space protected from the wind and serve as handling areas of the production; a terrace or an attractive entrance. The building consists of four successive matters on two levels. The production is placed in three of them. It creates a circle on a single level so that there is a need for only one entrance to the handling area. The public part of the structure is located on a separate level perched on the slope above. It is predominantly made up of showrooms and restaurants. The accommodation units for guests and employees can also be found here. The building is made of a steel framed structure with a hanging facade and a flat roof. The massiveness is softened by the glass facade in the atrium and other glass parts - some of which are as tall as the building itself.
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Optimization Of Methodology For Durability Assessment Of Steel Pylons
Čada, Pavel ; Ing. Miroslav. Brodňan, Ph.D. (referee) ; Chobola, Zdeněk (referee) ; Švehla,, Vladimír (referee) ; Vaněrek, Jan (advisor)
In this thesis the corrosion resistance of two types of steel materials were evaluated, Corten A as a representative of WS (weathering steel) and the corrosion resistance of anti-corrosion protection formed by the zinc coating. The different kinetics of corrosive processes was found during the NSS test. WS steel exposed to 400 hours of NSS laboratory test showed growth of the corrosion rate, however, after this period of time there has been a significant decline in this rate. Conversely, when using Zn as anodic protection, the corrosion losses decrease linear up to 300 hours of exposure, but after this time there was a relatively significant linear increase in corrosion rate. During measurements on existing VHV pylons they were measured corrosion decreases of steel and Zn anti-corrosion protection. Normal corrosion rate for weathering steel with 10 m.a-1 and for Zn corrosion loss 1.8 m.a-1 were found. Technical and economic assessment were evaluated using variant of new poles with Zn surface layer and revitalization of existing pylons from WS steel. With regard to all aspects obtained from laboratory tests and economic assessments, friendlier version of revitalization of existing VHV pylons from WS steel using a sufficient corrosion resistance of these steels were found out.
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Load bearing structure of a multi storey building
Janči, Michal ; Šmak, Milan (referee) ; Straka, Bohumil (advisor)
Diploma thesis deals with the design and assessment of the load bearing structure of a multi-storey building, proposed by the combination of two materials, steel and glued laminated timber. The building has a V-shape, the angle between legs is 120 °. Floor plan dimensions of one arm of the building are approximately 40x20m, building height is 24.3 meters. The building is designed with a flat green roof. The load bearing structure is solved as a heavy frame, lower three floors are made of steel and serves as the business premises, top four floors are residential, and their structure is designed of the glued laminated timber. Bracing of the whole structure is solved by a system of crossed steel rods.
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Superstructure of the backpart of the family house
Jetmar, Ondřej ; Šulák,, Pavel (referee) ; Strnad, Jiří (advisor)
The thesis accommodates a design of a slab made out of reinforced concrete. On one side, the slab overhangs the load-bearing mansonry. The thesis comprises two solutions. In the first solution, the overhung part of the slab is not supported while in the second solution is this part locally supported by pillars. The thesis contains two variants of the slab design and also evaluation of the results.
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