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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

Dálniční estakáda / Highway viaduct

Zatloukal, Bohuslav January 2017 (has links)
The subject of this thesis is the design and assessment of the bridge across the expressway and the deep valley in section Hričovské Podhradie - Lietavská Lúčka of highway D1 in Slovakia. The box girder structure with eleven spans was chosen of three variants. For each course there is a separate structure. The design of the bridge is carried out according to limit states including consideration of the impact of construction. The assessment of the construction is carried out using the beam model. The appendix contains structural analysis, drawings and visualization of the bridge.
42

Železobetonová rozhledna / RC Lookout Tower

Čírtková, Jana Unknown Date (has links)
The diploma thesis is focused on structural design and assessment of lookout tower, which is made of reinforced concrete and steel bracing elements. Structural design was performer in accordance with valid eurocodes and standards. The work is accompanied by construction drawings, drawings of shapes, reinforcement and steel elements, and documents from manufacturers.
43

Městský most v Povážské Bystrici / Urban viaduct in Povazska Bystrica

Kaut, Tomáš January 2022 (has links)
The content of the diploma thesis is design urban bridge in Považská Bystrica. From three possible options was selected one, which represents cable stayed bridge-extradosed with four spans. This selected option was elaborated in detail in this diploma thesis. Design procedures and assessments were performed to comply with ultimate limit state and serviceability limit state according to valid europeans standarts. The calculation model was performed in program Midas Civil in logitudinal axis and in SCIA Engineer in transversal axis. Structural assessment were done manually. The part of the diploma thesis are detailed drawings and visualizations.
44

Železniční obloukový most / Railway arch concrete bridge

Škrabal, Jan January 2022 (has links)
The subject of this diploma thesis is the structural design of a railway bridge over river Dyje based on materials given by my supervisor. The tied arch bridge with prestressed concrete girder is chosen for the structural check. The structural assesment is focused on prestressed concrete girder and basic calculations are made to check steel arch and hangers as well. Eigenvalue analysis provides dynamic properties of this structure. Appendices contain Structural design report, drawings including Construction stages scheme and visualization. For structural analysis Midas Civil software was used. Other used softwares for visualization, and outputs etc are: Lumion12, IdeaStatica, Microsoft excel and Autocad
45

Nádražní hala ve Vsetíně / Station building in Vsetín

Mičola, Jan January 2012 (has links)
The master's thesis deals with the steel structures in building industry. The aim of this paper is to propose and statically evaluate the load-bearing steel structure of railway station in Vsetín. After solving the construction load by the roof cladding and external cladding, it follows by an assessment of individual elements of construction, including an assessment of their joints. From a static perspective, the roof structure consists of two diagonal arches which are joined into each other in the top and two longitudinals frames. The entire structure is designed with an emphasis on freedom of internal layout independent of the load-bearing structure.
46

Deformačně napěťová analýza synchronního generátoru / Stress strain analysis of a synchronous generator

Majdič, Petr January 2015 (has links)
This master thesis deals with an impact of particular static and dynamic forces and temperature strain on horizontal synchronous generator. In connection with this, a stress distribution in construction and an assessment of security to terminal state of flexibility and weariness is being solved together with finding the most critical places on horizontal synchronous generator.
47

Návrh mostu na silnici I/58 přes vodoteč a polní cestu / Design of Bridge on the road I/58

Odvárka, Miroslav Unknown Date (has links)
This diploma thesis deals with the design of the bridge o the road I/58 over a watercourse and dirt road. The main content is the design and calculation of a continuous bridge structure with two bays. During designing the bridge, I based on Czech and European standards especially ČSN EN 1991 and ČSN EN 1992. A two-beam structure was selected from the developed three variants of bridging. Drawing documentation, construction procedure, visualization and static calculation were prepared for it. The result is an economical bridge structure with high durability and almost maintenance-free operation.
48

Proudění a difúze uvnitř městské zástavby / Flow and diffusion characteristics inside the urban area

Chaloupecká, Hana January 2012 (has links)
Title: Flow and diffusion characteristics inside the urban area Author: Hana Chaloupecká Department: Department of meteorology and enviroment protection Supervisor: prof. RNDr. Zbyněk Jaňour, DrSc., IT AS CR, v. v. i. Supervisor's e - mail: janour@it.cas.cz Abstract: Uniqueness of different towns, consists of various shapes of buildings. The main topic of this work is to compare concentration diffusion within groups of buildings of various types. We pursued houses made of single blocks of two different lengths - they were placed parallel or in courtyards. For research of pollution diffusion within the housing estates a method of physical modelling has been used. For this purpose we summarized a theory of atmospheric boundary layer and physical modelling at first. Then we pursued experiments. Measuring took place in a model in scale 1 : 300 inside an aerodynamic wind tunnel of the Institute of Thermomechanics AS in Nový Knín. We checked out the requirements placed on similarity of the real boundary layer and boundary layer modelled in the tunnel. By the measuring of concentration in urban areas we weren't watching a plume from the pollution source but we were studying an inversion task. We measured concentrations in two fixed points from different point sources inside the defined areas. A sensitivity of...
49

Stínová cena vzdušných polutantů v českém energetickém sektoru - odhad pomocí vzdálenostní funkce / Shadow Price of Air Pollution Emissions in the Czech energy sector - Estimation from Distance Function

Rečka, Lukáš January 2011 (has links)
This thesis employs a parametric input distance function that incorporates both desirable and undesirable outputs to provide a more complete representation of the production technology. Based on the Shephard (1970) theory of duality, we derive the shadow prices of undesirable outputs in the Czech energy sector on the data over the period 2002 - 2007. The medians of our shadow prices estimates are 8374, 1198, 2805, 6051 and 8549 € per ton of PM, SO2, NOx, CO and VOC, respectively. We decompose shadow prices estimates and test the hypotheses that the marginal abatement cost decline over time; that marginal abatement cost rice with the declining emission level; and that marginal abatement cost rice with declining emission rate. Key Words: shadow prices, distance function, undesirable outputs, marginal abatement cost JEL classification: C61, D24, Q53
50

Volba parametru metody SUPG pro konečné prvky vyššího řádu přesnosti / Choice of the SUPG parameter for higher order finite elements

Kohutka, Jiří January 2014 (has links)
In this work, we deal with the finite element method Streamline Upwind/Petrov-Galerkin (SUPG) and use it to solve boundary value problem for the stationary convection-diffusion equation with dominant convection with Dirichlet boundary condition on the whole boundary of bounded polyhedral computational domain of dimension 1 and 2, respectively. We consider a quadratic Lagrangian finite elements on the line segments and triangles, respectively. The core of the work is a proposition of choice of stabilizing parameter of SUPG method as an elementwise affine function in outflow boundary layer and as an elementwise constant function in the rest of the computational domain. We show that this choice gives a more accurate solution than the choice of the stabilization parameter as a constant in each element. 1

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