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Static design of roof structure
Duda, Tomáš ; Bažant, Zdeněk (referee) ; Zich, Miloš (advisor)
The subject of the diploma thesis is the design and static analysis of roof structure. It is prestressed roof shell (membrane) supported by a cable. The whole thesis is divided into several separated units according to task's specification. The text section describes the introduction to the issue of presstressed suspension cable constructions and displays their possible shapes, types and realizations. There is also technical report of solved shell, which was written on the base of the documents, drawn drawings and structural (static) analysis.
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Power line parameters
Kavan, Pavel ; Krajsa, Ondřej (referee) ; Mlýnek, Petr (advisor)
At the beginning is diploma thesis focused on a distribute power line parameters measurement and examination changes of this parameters depending on using of various power line cables. On the basis of measurements is made a transmission channel in Matlab & Simulink, where are executed simulations with power transmission line. The simulated power line is based on measured distribute parameters or physical proportions of cabels. By changing different parts of simulated communication channel is a symbol error rate expressed on the lenght of transmission line.
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Analysis of reinforced concrete bridge in Velké Meziříčí
Necid, Miloš ; Koláček, Jan (referee) ; Zich, Miloš (advisor)
I deal with the road bridge in Velké Meziříčí in the thesis. The bridge is a reinforced concrete structure with one field, with two main beams above the ground level. In the first phase I assess existing state of the ultimate limit state. I do calculation of internal forces both manually and in Scia Engineer. Furthermore, I propose two possible solutions of measures for the main beams to increase the carrying capacity and improving sight conditions on the bridge. In both variants I prestress the main beams with prestressing reinforcement. In the last option I propose a new bridge supporting structure, which is an additional prestressed slab.
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Calculation of heat and force field UniGear ZS1
Mokrý, Lukáš ; ABB, Drahomír Tůma, (referee) ; Dohnal, Petr (advisor)
The aim of my work is to describe high-voltage switchgear type UniGear 500R, which is part of UniGear switchgears family. I will focus on heating issue of one 500R unit and its parts during operation. Maximum values of this heating is limited by standards and can´t be exceed to ensure safe and reliable operation. That is why the heating tests are necessary part of designing and developing switchgears. Calculation will be made by two different ways. First is classic one-pole heating net method and second is numerical simulation in Solidworks flow simulation program. Except the theoretical description there will be presented also used 3D model and explanation of both method, used to calculation and simulation. Last point of this work is measuring of this type of switchgear and getting real data. The main point there is to compare measured values with values calculated and decide if is possible to simulate tests with appropriate accuracy. Then would be also possible to substitute the real test in laboratory, which costs many thousand crowns and takes lots hours of time. This work is collaborated with EJF division of ABB Company, where I am employed. Heating issues in this company is always on process, because of developing and improving of their products. So this work could be helpful in this field. ABB provides all materials needed, especially technical catalogues, 3D model and final values from laboratory measuring. Support from college faculty is mainly in study consultations and proposing of calculations making. In the end of work will be make final comparison and evaluation of achieved results.
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Bike bridge over the Nitra river
Teplanová, Alžbeta ; Páleník, Petr (referee) ; Koláček, Jan (advisor)
The subject of the diploma thesis is the design of variants of the construction of a footbridge for pedestrians and cyclists over the Nitra River. Two variants were created. After the comparison, a variant of the suspended footbridge was selected, which was modeled using the Midas Civil program and then statically assessed. The footbridge consists of a monolithic deck made of prestressed concrete. The pylons are located on one side of the bank
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Sugar storage tank
Kotík, Libor ; Musil, Jiří (referee) ; Zich, Miloš (advisor)
The matter of this thesis is static design and examination of prestressed storage tank to 50000 tons of sugar. Computational model of the steel roof structure is processed and its effect on the silos. Loads is provided of sugar. Optimal design is performed and assessment ultimate and serviceability limit state reinforced concrete and prestressing horizontal silo wall including local load. Next, it is performed the design of a reinforced concrete of the plane bed and column and assessment at the ultimate limit state. The thesis is also drawing documentation, technical report and visualization of construction process. The aim of this work is to the design of the main components based on the required storage capacity tank, mechanical properties of the stored material and technical amenities.
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Technical design of extensive replacement of overhead lines by HV cables in given distribution area
Bracek, David ; Kolacia, Tomáš (referee) ; Ptáček, Michal (advisor)
This diploma thesis deals with the technical design of extensive replacement of overhead lines by high voltage cables in the given distribution area. In its first part the thesis is focused on the survey of the concerning legislation and technical standards, which must be followed during making technical design documentation. It also mentions the processes which precede the replacement itself. There are also the operational differences between the overhead lines and the high voltage cables in the first part, too. The second part is focused on the technical description of the given area, the technical design of the replacement by high voltage cables and the realization of calculation, which is important as a base for further realization of technical arrangements. The consideration of technical feasibility and economic efficiency are also contained in the second part.
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Design of prestressed bridge structure
Otáhal, Ondřej ; Rybák, Vít (referee) ; Klusáček, Ladislav (advisor)
Diploma thesis deals with design of a road bridge over Husí potok in Hladké Životice. The supporting structure of the bridge is designed in three variants, one of which is selected variant post-tensioned slabs. To address the internal forces is used computing software Scia Engineer. In the structural analysis of the bridge structure is assessed at the ultimate limit state and serviceability by European standards – Eurocodes. For chosen variant is prepared drawing documentation and visualization.
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Computer Network Design of the Company
Dočekal, Filip ; Jordán, Vilém (referee) ; Ondrák, Viktor (advisor)
The bachelor thesis is focused on a suggestion of an operational computer network in a particular building. The thesis deals with the analysis of a present situation and according to its results is implemented my own solution. The solution must be operational, easily expandable and it will meet the requirements which will be agreed with the investor.
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Nonlinear Response of Steel Structures on Statical Loading
Nezbedová, Anna ; Vlk, Zbyněk (referee) ; Kala, Zdeněk (advisor)
This paper deals with the nonlinear response of steel structures to static loads. There are formulas derived for nonlinear analysis compressed, bended and tension members. By compressed elements, there is described the issue of buckling, by the bended, it is lateral-torsional buckling and tension elements are cables. As an example there is an calculation of a suspension two spans pedestrian steel bridge under load action of asymetrical loads. As another possible calculation process, the finite elements method is described.
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