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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.
1

Obloukový most přes dálnici / Arch bridge over a highway

Pěkník, Robin January 2015 (has links)
The subject of this master's thesis is design of road bridge over highway D1 by the city Přerov. From the three proposed solutions has been chosen bridge with self-anchored arched structure which is good for deep notch. The concrete bridge was designed and assessed according to current Eurocodes. The thesis includes detailed structural analysis, drawings and visualization of the bridge. The analysis was performed using software Scia Engineer including time dependent analysis (TDA). Assessment of structure was made in Excel or by hand.
2

Návrh předpjaté mostní konstrukce / Design of prestressed bridge structure

Anděl, Martin January 2014 (has links)
The aim of this thesis was to suggest two alternatives of a prestressed concrete bridge structure over the river Jihlava in Ivančice and to design the chosen one. The structure was designed as a one-span frame bridge with the span range of 46,0 m. Both design and relevant drawing documentation of the slab, abutment and strip foundation was made.
3

Přemostění dálnice u Moravského Písku / Road bridge over the highway by the town Moravský Písek

Novotný, Matěj January 2017 (has links)
The Diploma thesis deals with the road bridge on tfe road 4951 across the D55 highway. Construction is proposed in three variants. The selected design was prestressed board length 67,65 meters, intended as a continuous beam. Calculation is performed by software SCIA. The construction is evaluated according to current standards.
4

Lávka tvořená předpjatým pásem s obloukem / Footbridge formed by a stress ribbon and arch

Glajcar, Karel January 2012 (has links)
The subject of this master’s thesis is the design of footbridge across the river. The main objective is to analyse the superstructure which is formed by a stress ribbon and arch. The arch consists of two separate plan curved concrete arches and is associated with stress ribbon in the top. The analysis of the structure has been performed using MIDAS CIVIL 2011 software. Simplified calculations by hand or by EXCEL have been also carried out. Design of the superstructure's elements, pre-stressed tendons and reinforcement has been done according to EUROCODE. In the analysis, time dependent effects have been also taken into account.
5

Výskyt melecitózního medu u včelstev na Českokrumlovsku, jeho jakost a způsoby využití / The occurence of cemented honey in bee colonies around Český Krumlov, guality and way of processing of cemented honey

KOPŘIVOVÁ, Eva January 2018 (has links)
The thesis deals with an incidence of so-called cement (melecitose) honey, which can cause serious problems to a beekeeper in the form of losses of bee colonies, honey as well as beewax works. It is a honeydew honey with a higher content of the trisaccharide of melezitose, which causes a quick crystallization in comb cells. A high concentration of this trisaccharide which consists of two molecules of glucose and one molecule of fructose is caused by some representatives of hemipteran insect. Reverse invertases present in hemipteran bodies cause synthesis of oligosaccharides, including the trisaccharide melezitose, from monosaccharides. Content of this trisaccharide is determining for the formation of the cement honey. Above 10 % it can cause quick crystallization of honey. Incidence of the melezitosis is increased by many factors of which the most important is weather suitable for reproduction of honeydew producers followed by a dry period during which water content in the honeydew decreases and the content of saccharides increases. Other important factors are health of the bee colony and species composition of the honeydew sources. Aim of the thesis was to analyse incidence of melecitose honey in the region of Český Krumlov over the period of several years depending of the length of active period of the individual bee keepers. Influence of altitude, year, weather, number of bee colonies, and species composition of honey flow sources was also evaluated. The thesis also presents methods of cement honey processing as used by beekeepers who have recently experienced this problem. The most frequently used method is dipping combs in water with subsequent reworking of the solution by honeybees. Zootechnical methods of beekeeping reflecting the problems of the incidence of cement honey are outlined in the theoretic part of the thesis.
6

Vybrané části stavebně technologického projektu fotbalové tribuny Androva stadionu v Olomouci / Selected Parts of Building and Technological Project for Football Tribune of Ander Stadium in Olomouc

Garláthy, Michal January 2013 (has links)
The theme of this diploma thesis are the Selected Parts of Building and Technological Project for Football Tribune of Ander Stadium in Olomouc. The content of this diploma thesis is the technological process of assembly of the building bearing construction of prefabricated concrete elements, the budget, the inspection and the test plan, the issue of safety and health at the construction site, the project concerning the construction site installation, the mechanical assembly, assessment of tower crane, object time and financial plan, construction technology study and the construction timetable.
7

Most nad místní komunikací a potokem / Bridge over a local road and a brook

Tichavská, Andrea January 2015 (has links)
The purpose of the master thesis is the design of the concrete highway bridge by European standards. The highway is situated on two independent prestressed load-bearing structures with cross-section area of constant dimensions over its length. The bridge deck is built on a falsework considering its proportions and obstacles under the bridge. The thesis contains the design and the assessment of the load-bearing structure in longitudinal and transverse direction including the calculation of cross beams and an anchorage zone.
8

Konstrukce předpjatého pásu / Stress ribbon structure

Sedlářová, Lucie January 2015 (has links)
The diploma thesis deals with a project of a pedestrian bridge across the valley. At first, there was a comparison of three options of a bridge, then the option of a prestressed concrete band was selected. The main aim of the diploma thesis is the design of the construction, the creation of a model in the programme Ansys 12.1 and the subsequent assessment in accordance with the current regulations.
9

Ověření vlivu složení betonů na životnost cementobetonových krytů / Verification of the composition of the concrete durability of cement-concrete covers

Černá, Eva January 2018 (has links)
Alcali – silica reaction often causes destruction of a concrete.constructions. In the theoretical part is described creation and causes of the ASR including assessment of individual components of concrete and their testing. The practical part is devoted to the results of some control tests of the concrete cover in the section 18 of the highway D1 (Měřín - Velké Meziříčí) and section D1-20 (Velké Meziříčí - Lhotka), the mechanical properties of the upper and the lower layer of the concrete cover and measuring the resistance of concrete against chemical deicing agents.
10

Estakáda na silnici I/57 / Flyover bridge on the I/57 road

Paleček, Vladimír January 2019 (has links)
The aim of the diploma thesis is the design of a continuous bridge construction of five fields in the direction of the town Albrechtice - Opava. The bridge overcame local roads and railway tracks and is part of the bypass of Albrechtice. From the three proposed variants, a pre-stressed two-beam structure was selected for the detailed solution and it is assessed according to the limit states and includes the effects of gradual construction. Further detailed drawings are drawn up.

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