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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.
61

Most přes silnici I/55 a železniční trať / Bridge over the I/55 road and railway line

Gross, Tomáš January 2018 (has links)
The main aim of the diploma thesis is a design of two bridges on D1 highway (Říkovice – Přerov). Structural system of these two bridges is a seven spans continuous beam. The bridges span the rail track and road I/35. The structural system of these two bridges is identical. The preliminary design is processed in two options. The first one considers the use of post-tensioned pre-casted beams PETRA with cast-in place cross beams and composite bridge deck. The second draft considers the use of two slab-beam with the cross beams. Effects of loads were calculated in SCIA Engineer program. The build-up phases were assessed by TDA method. The assessment of the structure was made according to EC.
62

Most na dálnici nad Dolanským potokem / design of higway bridge accross Dolansky creek

Šedrla, Jakub January 2013 (has links)
My thesis is focused on a design and comparism of the highway bridge across Dolansky creek. The bridge is built by balanced cantilever method. The common span length is 110metres. The bridge is post-tensioned concrete structure.The static model is made of beams.The static analysis during lifespan of bridge is made by Time discretization analysis . The design of reinforcement is made for longitudinal section and cross section.
63

Most na rampě v Brně / Bridge on a ramp in Brno

Vančura, Lukáš January 2014 (has links)
The topic of the thesis is the design and assessment of roadway bridge structure, which is curved in the horizontal plan with a very small radius. Bridges is part of the flyover crossing in Brno. There are designed two variations of which are further developed the variant of the two-chamber cross-section. Calculations and assessments are conducted in according to the valid European standards (Eurocodes). The static calculation is supplemented with a clear technical drawings and visualizations.
64

Most na rychlostní silnici / Bridge on a motorway

Lindtner, Tomáš January 2015 (has links)
The subject of Diploma’s thesis is the design of a road bridge on the R1 expressway, at km 1,293 above the road III/51311. The main content is static calculation of supporting structure consisting of four spans. Four studies were processed and the first variant of double-girder monolithic structure was chosen. The range of spans is ranging from 25 m - 30 m. Double-girder consists of two post-tensioned concrete beams and reinforced concrete slab. Static models and load effects are solved in Scia Engineer. Bridge is located in the horizontal curvature, however, compromise was elected (because of small curvature), assessing the upright design. Calculation is made without effects of temperature, wind loads and horizontal forces causing by traffic.
65

Rekonstrukce mostu přes údolí u Dobrušky / Reconstruction of the bridge acros the valley near Dobruška

Dočkal, Miloš January 2015 (has links)
The final thesis is focused on design a bridge construction. across the valley near Dobruška. The existing bridge is convenient and it will be replaced by a new bridge construction. The bridge is situated on motorway I/14 and it is used to transfer across the valley and Brtevsky brook.The bridge construction is designed in three alternatives. The chosen variant is a post-tensioned two-beam concrete construction with a lenght of 88,5 metres and a width of 14,0 metres. The calculation of load is solved in Scia Engineer 2014. The construction is designed in accordance with valid standards and it is made a drawing documentation.
66

Most na dálnici D1 přes silnici a potok / Bridge on the D1 highway over a road and brook

Surovcová, Monika January 2016 (has links)
The aim of the diploma thesis is the proposal of a bridge structure in the direction of Přerov – Lipník in the cadastral territory of the Osek nad Bečvou. A bridge is used to overcome the road III/43612 in km 93,550, the stream Lubeň and a field trip. From tree alternatives is selected a post-tensioned two-beam concrete struction and assessed according to the limit states including an impact of phased construction according to the European standards. Also it is prepared a drawing documentation, an accompanying report and a visualization of the beam.
67

Most na rampě v Brně / Bridge on a ramp in Brno

Diviš, Dalibor January 2012 (has links)
Thesis involves designing and analysis of horizontally curved bridge contruction with chamber-shaped profile and oblique side walls. The object is a part of fly-over crossig at VMO Brno. Calculations are according to actually valid standards ( Eurocodes ). Thesis gives a basic look at the problematics of horizontaly curved bridge construction, including solution of prestressing cables´ 3D-tracking with usage of common software.
68

Structural Condition Assessment Of Prestressed Concrete Transit Guideways

Shmerling, Robert Zachary 01 January 2005 (has links)
Objective condition assessment is essential to make better decisions for safety and serviceability of existing civil infrastructure systems. This study explores the condition of an existing transit guideway system that has been in service for thirty-five years. The structural system is composed of six-span continuous prestressed concrete bridge segments. The overall transit system incorporates a number of continuous bridges which share common design details, geometries, and loading conditions. The original analysis is based on certain simplifying assumptions such as rigid behavior over supports and simplified tendon/concrete/steel plate interaction. The current objective is to conduct a representative study for a more accurate understanding of the structural system and its behavior. The scope of the study is to generate finite element models (FEMs) to be used in static and dynamic parameter sensitivity studies, as well load rating and reliability analysis of the structure. The FEMs are used for eigenvalue analysis and simulations. Parameter sensitivity studies consider the effect of changing critical parameters, including material properties, prestress loss, and boundary and continuity conditions, on the static and dynamic structural response. Load ratings are developed using an American Association for State Highway Transportation Officials Load and Resistance Factor Rating (AASHTO LRFR) approach. The reliability of the structural system is evaluated based on the data obtained from various finite element models. Recommendations for experimental validation of the FEM are presented. This study is expected to provide information to make better decisions for operations, maintenance and safety requirements; to be a benchmark for future studies, to establish a procedure and methodology for structural condition assessment, and to contribute to the general research body of knowledge in condition assessment and structural health monitoring.
69

Statické řešení zastřešení nádrže / Static anylsis of tank roof

Sicha, Jakub January 2020 (has links)
This diploma thesis is focused on static analysis, design and check of tank roof. There is design and check of main load-bearing elements of tank roof in this thesis according to ČSN EN 1992.
70

Rekonstrukce mostu v Ledči nad Sázavou / Reconstruction of the bridge in the town Ledeč nad Sázavou

Lidmila, Ladislav January 2020 (has links)
Diploma thesis deals with reconstruction of old beam bridge in town Ledeč nad Sázavou. Three variants of reconsttruction were done. Detailed structural design report was done to one of them, streithening with post-tensioning. Calculation of load effect was solved with finite elemet method via software on grillage model. Construction was checked on ultimate limit state and serviceability limit state. Necessary drawings were elaborated to chosen method.

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