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Load-carrying steel structure of railway bridge
Ganglbauer, Tereza ; Melcher, Jindřich (referee) ; Karmazínová, Marcela (advisor)
The master thesis focuses on the design of a Load-carrying steel structure of railway bridge with bottom steel deck of the span of 28 + 45 + 23 m. The bridge is situated in the municipality of Třebestovice. Four variants of solution have been calculated. Two variants are made by plate main beams of variable profile, the next alternative was made by truss structure and the fourth variant consist of a combination of plate main beams with truss stiffener in the middle span. The most optimal solution was processed in detail. The calculations were done in compliance with valid ČSN EN norms.
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Design of a railway frame bridge
Findura, David ; Brtáň, Stanislav (referee) ; Nečas, Radim (advisor)
This thesis deals with a design of a two-track railway frame bridge over a valley. Out of three proposed variants was chosen the variant number 1 - prestressed frame construction with variable beam section. According to actual EN standards the construction was designed and assessed to the serviceability limit state and the ultimate limit state.
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Design of a one-span bridge over a local brook
Haluška, Ľuboš ; Koláček, Jan (referee) ; Nečas, Radim (advisor)
The aim of this thesis is the design and analsysis of a one-span bridge over a local brook. Two variants were designed. The variant of one-span prestressed beam bridge with lower bridge desk was chosen for analysis. The calculation of load effect was made in software Scia Engineer. The supporting structure is assessed for the ultimate limit state and the serviceability limit state according to the europien standards. The time dependent analysis is not trated in this thesis.
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Railway bridge with steel load-carrying structure
Šarmanová, Iveta ; Melcher, Jindřich (referee) ; Karmazínová, Marcela (advisor)
The subject of master’s thesis is a structural analysis of a bearing structure of an existing historical single-track railway bridge over the Vltava river in a direction from Prague Modřany to Vrané nad Vltavou. The riveted steel bridge carries rail traffic across five fields. A part of the master’s thesis is focused on a disposal of a variant of the longest field by using a modern arch construction.
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Stress and deformation analysis of railway bridge over the Svratka River
Kovář, Jaroslav ; Žák, Stanislav (referee) ; Fuis, Vladimír (advisor)
This thesis deals with stress and strain analysis of real truss bridge structure. This structure is modelled as plane bar system. The opening part dedicates to theory, which is further used for calculations. The calculation part dedicates to compare statically determinate and indeterminate variation of structure for load by own weight and passage of the train. Analytic calculations are numerically verified with program ANSYS. In thesis is assessed concentration of stress, when the rivet drops out of the structure. The next part of thesis dedicates the spatial model of bridge, which is compared witch plane model.
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Stress and deformation analysis of railway bridge over the Odra River
Svoboda, Josef ; Profant, Tomáš (referee) ; Fuis, Vladimír (advisor)
This bachelor thesis deals with strain, stress and deformation analysis of the planar truss bridge construction. The aim is to determined the size of axial forces for statically determinate system and then making construction changes to reduce axial stresses in the individual beams in the structure. This structural modification becomes statically indeterminate structure. To solve this problem we consider different positions of the train at the bridge. The obtained values we can use to assess stress and deformation of the structure and the analytical results will be compared with the results obtained using the finite element method.
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Railway bridge across the river Svitava
Findura, David ; Panáček, Josef (referee) ; Nečas, Radim (advisor)
This thesis deals with a design of an one-track railway bridge over the river Svitava. Out of three proposed variants was chosen as the most economical and feasible the variant number 2 - two-beam prestressed bridge with one span. According to actual EN standards the construction was designed and assessed to the serviceability limit state and the ultimate limit state.
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Design of a one-span railway bridge
Tomisová, Gabriela ; Panáček, Josef (referee) ; Nečas, Radim (advisor)
The topic of this thesis is a design of an one-span bridge over a river, a bicycle path and a route for pedestrians. 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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Railway bridge over a local brook
Libiger, Martin ; Trenz, Jan (referee) ; Nečas, Radim (advisor)
The purpose of this work was to design a bridge local stream to convert single-track railway line. The possible variation deals with the construction of prestressed girder bridge on one field with the lower deck. The aim of this work was to design and evaluate the structure on the basis of ultimate limit states and serviceability limit states according to applicable EN standards.
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