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Strengthening study of a reinforced concrete plain girder
Jalůvková, Lucie ; Pinkas, Karel (referee) ; Svoboda, Adam (advisor)
The subject of my bachelor thesis is to analyze existing reinforced concrete plain girders according to the current standards with a variety of strengthening solutions. The roof girders are located in industrial building in Lanškroun in the Pardubice Region. Its original design dates back to 1998, therefore the roof girders were designed according to the standards valid at that time. The strengthening of the roof girders will be designed using additional external prestressing and composite reinforcement followed by verification of the ultimate limit state, serviceability limit state and fire resistance. A digital model for checking the calculation was created using software Scia Engineer. For the verification of the composite reinforcement software Sika CarboDur was used.
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Design of a single span prestressed bridge
Daněčková, Monika ; Panáček, Josef (referee) ; Nečas, Radim (advisor)
This bachelor thesis aims to design a prestressed bridge with one span. The plate girder bridge was selected from the given alternatives. The load effects were calculated by hand calculation using the member model and in SCIA Engineer 22.0. using the slab model. Subsequently, the structure was assessed for limit states.
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Single span railway bridge
Janíčková, Lucie ; Koláček, Jan (referee) ; Nečas, Radim (advisor)
The topic of this thesis is a design of an one-span bridge over a river. The construction of prestressed beam bridge with one field with lower bridge deck is preferred out of all developed options. The construction is designed and assessed to the ultimate limit state and the serviceability limit state according to actual EN standards.
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Design of a single span frame bridge
Karásková, Adéla ; Tomečka, Petr (referee) ; Nečas, Radim (advisor)
The bachelor's thesis focuses on the design of a pedestrian bridge over a riverbed. Out of three options, a frame structure with a parabolic ramp in a single span was chosen. The load effects were calculated using the SCIA Engineer program, and the results were processed in MS EXCEL. The structure was assessed for the ultimate limit state and the serviceability limit state. The design was made according to applicable standards and regulations.
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Prestressed double-T bridge
Padyšák, Lukáš ; Panáček, Josef (referee) ; Koláček, Jan (advisor)
The topic of the bachelor thesis is the design and assessment of the supporting structure of a bridge. Three variants were developed, and the most suitable one was selected from them. The chosen supporting structure of the bridge is designed as a double-T beam made of prestressed concrete with a single span of 30 meters. Midas Civil software were used for the calculation of load effects and time-dependent analysis (TDA). The design and assessment were processed according to applicable European standards.
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Preparation and implementation of construction and technical survey of prestressed bridge structure
Kummer, Jan ; Kocáb, Dalibor (referee) ; Anton, Ondřej (advisor)
The thesis focuses on a visual excursion with photo documentation, the localisation of prestressing reinforcement of prefabricated beams type DS-T and the analysis of their state as well as the offtake of core drilling in order to establish their strength under pressure. In the theoretical part I describe the principles of the static effect of prestressed concrete and the basic sorting of technical survey and diagnostic methods. Furthermore I explain specific diagnostic methods for the determination of the location and state of prestressing reinforcement. The practical part focuses on photodocumentation of a bridge, the determination of the location of the beams reinforcement using georadar, (chopped probes to reinforcement and removal of core drilling samples. The conclusion provides the location of prestressing reinforcement and the level of its corrosion and grouting, the photo documentation of the bridge and a collection of samples from core drilling in order to determine the strength under pressure of the concrete.
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Road bridge over a local stream
Vondráček, Jan ; Zich, Miloš (referee) ; Koláček, Jan (advisor)
The topic of this bachelor thesis is design of a road bridge across a valley with stream. For more detailed design was selected variant of one span cable-stayed bridge, from two variants of bridges with different static solutions which were created. Internal forces were determined by software SCIA Engineer 22.0. For analyse the structure were created three computational models – slab model, spatial bar model and slab-wall model. Structure was assessed for limit states according to currently valid standards.
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Slab bridge
Malý, Jan ; Muroň, Vlastimil (referee) ; Panáček, Josef (advisor)
Bachelor's thesis deals with the design of a road bridge over the Volyňka river. Three bridging variants were proposed, of which the bridge variant, whose supporting structure consists of an additional pre-stressed concrete slab, was chosen for subsequent detailed assessment. The variation with prestressed prefabricated girders with composite slab is chosen for more detailed assessment. Detailed structural design is made and selected parts of the construction are checked for ultimate and serviceability limit state by Eurocode. Calculation of load is made by manual way and then by exact way with program Scia Engineer 22. The results from both calculation methods are then compared. Detailed drawings and visualization are made as well.
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Pedestrian bridge in Příbor
Škrachová, Ivana ; Nečas, Radim (referee) ; Koláček, Jan (advisor)
The subject of the bachelor thesis is about a concept of pedestrian bridge across the river Lubina in city Příbor. For final design of pedestrian bridge was made three preliminary designs of constructions and one of them was choosen for detailed processing, assessment and making drawings. The choosen variant is made as prestressed concrete's beam with parapets. For calculation of internal forces was used Scia Engineer Software. Assessment was made by method of ultimate and serviceability limit state. A process of constructio's works are not going be treated in this work.
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