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Frame bridge
Kapsa, Štěpán ; Velešík, Marek (referee) ; Koláček, Jan (advisor)
The work deals with the design of a single-pole frame structure of a road bridge, which is based deeply on piles. Due to the size of the span of 26 m, additionally prestressed cables are designed in the supporting structure. The structure is analyzed by a three-dimensional bar model and assessed for serviceability and load-bearing limit states in the longitudinal and transverse directions. Part of the design is a study of the influence of supporting the computational model and a comparison of the effect of active and resting earth pressure on the structure.
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Pedestrian bridge over the Jihlava river in Třebíč
Vavřička, Lukáš ; Velešík, Marek (referee) ; Koláček, Jan (advisor)
The bachelor thesis deals with design of concrete pedestrian bridge over the Jihlava river. At the beginning two variants were created, one of which was future postprocessed. The cable-stayed construction, whose main support part is created by two pylons fixed to post-tensioned bridge deck, is pin-supported on abutment. Suspension of the deck is implemented by cables pin joined to the top of towers and sides of the deck. Material of the main concrete load-bearing structure is concrete C45/55. The steel elements of structure are made from steel S355, suspenders are designed with steel Macalloy 460. The structural assessment report was processed mostly by hand calculation with use of program MS Excel, for structural check of pylon use of program FIN EC beton was chosen. The load calculation was performed with program Scia Engineer. The drawing was created in AutoCAD software and the visualization in Lumion.
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Design of the point supported slab of the house in Olomouc
Velešík, Marek ; Požár, Michal (referee) ; Klusáček, Ladislav (advisor)
The bachelor thesis is focused on the design of the point supported reinforced concrete slab of the apartment building on Litovelská street in Olomouc. The slab is situated above the ground floor. Static calculations are based on internal forces of the computational model created in software SCIA Engineer 17.01. The correctness of computational model was verified by the method of summary bending moments. The main focus of the thesis was design procedures and assessments of point supported slab according to Eurocode 2: Design of concrete structures – Part 1-1: General rules and rules for buildings (ČSN EN 1992-1-1). The control of the design of reinforcement was performed in software SCIA Engineer 17.01.
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Arch bridge across the valley
Velešík, Marek ; Zlatuška, Karel (referee) ; Nečas, Radim (advisor)
The main focus of this master thesis is the design and assessments of the bridge structure consist of a stress ribbon supported by a steel arch. Three preliminary studies of pedestrian bridges above the valley were created and the one with semi-through deck supported by arch through cables was chosen to detail processing. This thesis includes a chapter, which deals with finding the ideal shape of arch. The computational beam model for the analysis of the structure was created in software Ansys Mechanical including the construction stages. The correctness of the computational model was verified by the secondary model created in the software Midas Civil. For evaluation of the structure in crosswise direction was created slab model in software Midas Civil. The structure was evaluated considering the ultimate serviceability state and ultimate limit state according to currently valid standards. The thesis also includes dynamic analysis.
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Bridge over the Senice river
Urbánek, Filip ; Velešík, Marek (referee) ; Panáček, Josef (advisor)
This bachelor's thesis deals with the design of a road bridge over the Senice river. In the beginning of the thesis there are designed three variations of the bridge. The variation with prestressed prefabricated girders with composite slab is chosen for more detailed assessment. Time-dependent analysis is taken into account in the structural design. Detailed structural design is made and selected parts of the construction are checked for ultimate and serviceability limit state by Eurocode. Detailed drawings and visualization are made as well.
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Prestressed slab bridge over the local stream
Rebroš, Martin ; Velešík, Marek (referee) ; Koláček, Jan (advisor)
The subject of the bachelor´s thesis is the design and assessment of a slab structure of a single-span prestressed concrete bridge. The assessments are carried out from the point of view of the limit state of usability and the limit state of serviceability. The bridge carries first class communication I/57 of the category S 9,5/70 between villages Fulnek and Hladké Životice, while the bridge obstacle is the Kostelecký potok. Two variants of bridging were developed, for detailed processing and assessment for both limit states the variant of the prestressed plate bridge with trapezoidal cross-section was selected. The SCIA Engineer software was used to calculate the internal forces from the load. The results were checked and compared by manual calculation using the method of interacting width on a rod model. The drawing documentation was developed in the AutoCAD software and visualization in the Rhino 7 and Lumion.
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Frame bridge
Kapsa, Štěpán ; Velešík, Marek (referee) ; Koláček, Jan (advisor)
The work deals with the design of a single-pole frame structure of a road bridge, which is based deeply on piles. Due to the size of the span of 26 m, additionally prestressed cables are designed in the supporting structure. The structure is analyzed by a three-dimensional bar model and assessed for serviceability and load-bearing limit states in the longitudinal and transverse directions. Part of the design is a study of the influence of supporting the computational model and a comparison of the effect of active and resting earth pressure on the structure.
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Analysis of Joints Between Precast Segments of Slender Bridge Structures
Velešík, Marek ; Nečas, Radim
Slender bridge structures, such as stress ribbon bridges and suspension bridges, are frequently constructed by precast segments. However, the joints between the precast segments are a source of discontinuities and can be critical in terms of the service life of these structures. An experiment was therefore designed to investigate the behaviour of the joints between the precast segments in service state in more detail. A closer investigation of these structural details can refine approaches to numerical modelling of these structures. The thesis also includes a study of the effect of centreline kinking in Midas Civil software.
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Bridge over the Senice river
Urbánek, Filip ; Velešík, Marek (referee) ; Panáček, Josef (advisor)
This bachelor's thesis deals with the design of a road bridge over the Senice river. In the beginning of the thesis there are designed three variations of the bridge. The variation with prestressed prefabricated girders with composite slab is chosen for more detailed assessment. Time-dependent analysis is taken into account in the structural design. Detailed structural design is made and selected parts of the construction are checked for ultimate and serviceability limit state by Eurocode. Detailed drawings and visualization are made as well.
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Pedestrian bridge over the Jihlava river in Třebíč
Vavřička, Lukáš ; Velešík, Marek (referee) ; Koláček, Jan (advisor)
The bachelor thesis deals with design of concrete pedestrian bridge over the Jihlava river. At the beginning two variants were created, one of which was future postprocessed. The cable-stayed construction, whose main support part is created by two pylons fixed to post-tensioned bridge deck, is pin-supported on abutment. Suspension of the deck is implemented by cables pin joined to the top of towers and sides of the deck. Material of the main concrete load-bearing structure is concrete C45/55. The steel elements of structure are made from steel S355, suspenders are designed with steel Macalloy 460. The structural assessment report was processed mostly by hand calculation with use of program MS Excel, for structural check of pylon use of program FIN EC beton was chosen. The load calculation was performed with program Scia Engineer. The drawing was created in AutoCAD software and the visualization in Lumion.
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