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Defects of the bridge expansion joints - durability and expected lifetime
Daňa, Jan ; Ing.Ladislav Šašek, CSc. (referee) ; Pošvářová, Miloslava (advisor)
This thesis discusses the types of bridge expansion joints certified for use in the Czech Republic and their disorders. The first part was a theoretical evaluation of expansion joint failures. The second part focused on clarifying the failure of anchor bolts at the cantilever expansion joint. On the basis of determining the cause was then designed a method for determining the durability of expansion joints. Prognosis life cycles corresponds records according to administrator- repair works.
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Static provision of baroque church
Kadlec, Jaroslav ; Šiška, Radek (referee) ; Strnad, Jiří (advisor)
The master´s thesis solves a static provision of the Baroque church of Saint James in Městečko Trnávka. The church was built in 1752 in Baroque style on the place of the original Romanesque church. It is a single-nave building with dimensions of about 46 × 20 m. The nave is followed by a massive square tower with a height of about 34 m. The reason for the restoration of the church are cracks in the external masonry and arch due to small space stiffness. The building will be reinforced by horizontal and transverse prestressing. They are designed prestressing tendons, called monostrands, using method of alternative cable channels. It will help to avoid other derformations and it will increase a stiffness of the structure.
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Plan curved arch footbridge
Trenz, Jan ; Romportl, Tomáš (referee) ; Stráský, Jiří (advisor)
The scope of thesis is to design a curved arch footbridge. The main structure consists of composite deck supported by steel arch. The focus is on finding optimal shape of arch and proper cross-sections of elements. Bridge is analysed according to limit states.
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Design of Building on the Wenceslas Square
Moc, Ondřej ; Hladík, Pavel (referee) ; Zich, Miloš (advisor)
The Diploma’s thesis deals with the design of selected parts of reinforced and prestressed concrete structure. Internal forces were solved by software SCIA ENGINEER. Prestress concrete element was solved by module TDA. Phases of construction were considered. Detailed solution is focused on the design of reinforced concrete floor slab with joists within the basement, reinforced concrete beam with five spans within the basement, reinforced girder within the basement, reinforced column within the basement, reinforced footing and prestressed concrete joist within the basement. Drawings of shape and drawings of reinforcement are included in this thesis. Other elements of construction were not solved in this thesis.
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Calculation of Prestressed Concrete Beam
Vítek, Filip ; Pokorný, Přemysl (referee) ; Malášek, Jiří (advisor)
This thesis is focused on the description of the calculation of prestressed concrete beams. The introductory chapter discusses the bias and distribution of prestressed concrete. The second chapter describes materials used for the production of prestressed concrete and its characteristics. The following chapters describe the calculation of changes of prestressing and their effects on the structure, prestressing methods and a limit state where the prestressed concrete is controlled. A model example of calculation is shown in the last chapter.
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Design of the engineering structure
Svoboda, Adam ; Volf, Marek (referee) ; Klusáček, Ladislav (advisor)
The bachelor thesis deals with design issues of industrial buildings and is focused especially on design and assessment of short corbels. The first part of the thesis consists of a translation of technical text published by prof. J. Schlaich (E DIN 1045-1). In the second part of the thesis is the gained knowledge applied on assessment of existing industrial structure SUAS a.s. in Vřesová. For the analysis of short corbels is used the strut-and-tie model and the method of limitation of concrete compressive stress at the nodes of the strut-and-tie model. The thesis concludes with structural strengthening of nonconforming short corbels by using prestressed cables to ensure safe operation of the crane runway.
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Prestressed bridge over the river
Kačer, Karel ; Nečas, Radim (referee) ; Koláček, Jan (advisor)
As the thesis I chose static solving bridging the road. This is a real first-class roads situated near the city Kolín in the Central Region. The bridge will be used to transfer traffic across of local Sendražický stream. At the beginning I determined three main variants of supporting design and then I chose one for more detailed processing. It is a armored concrete slab solidified two prestressed ribs arching spanning 18.3 m The calculation is implemented by software Scia Engeneer in accordance to European standards.
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Cable-supported pedestrian bridge
Tichavská, Andrea ; Koláček, Jan (referee) ; Nečas, Radim (advisor)
The scope of the thesis is the design of a cable-supported pedestrian bridge. The structure of the pedestrian bridge is formed by concrete bridge deck supported by external cables. The transmission of the prestress is provided by steel elements. The main goal of this project is the design of prestressed concrete bearing structure. Construction phases will not be taken into consideration.
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