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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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Arch bridge across the highway
Olšák, Martin ; Trenz, Jan (referee) ; Nečas, Radim (advisor)
The subject of this diploma thesis is design of arch bridge across the highway. Has been elected self-anchored structure with span of arch 60 m and trapezoid bridge deck from prestressed concrete. The load effects is calculated by software Scia Engineer including time dependent analysis. The supporting structure is assessed for the ultimate limit state and serviceability limit state. Static assessment is done by hand calculation according to CSN EN 1992-2. Part of the thesis is drawing and visualization of the bridge.
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Pedestrian bridge across the river Labe
Libiger, Martin ; Trenz, Jan (referee) ; Nečas, Radim (advisor)
The thesis deals with a design of the river Labe bridging in the city Hradec Kralove. In order to make option for cyclists and pedistrians to cross between shores. There were made three design variants. For detailed solution curved twin-arm arched structure was chosen. The aim of the thesis was design and assessment of Bering strucutre of the footbridge according ultimate limit states and serviceability limit state given by valid Eurocodes.
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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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Plan curved structures supported by arches
Trenz, Jan ; Zich, Miloš (referee) ; Vítek,, Jan (referee) ; Stráský, Jiří (advisor)
The aim of this doctoral thesis is the research of the plan curved footbridges with the deck supported by arch. The research is preceded by the survey of present findings about arch structures with upper deck. The summary of reasons and difficulties of design of plan curved structures follows. The appropriate approach for design of plan curved structure is searched on the basis of methods for design of straight structure. The design of arch which is subjected to minimal bending moments is emphasised. At first, the structure is designed in the same way as straight structure and the limit plan curvature (for which the method is not suitable anymore) is sought. Then the approach based on method of inversion of suspended cable is examined and adapted for designing of plan curved arch geometry. The approach is thoroughly analysed through calculation model and experimentally verified on physical model in scale 1:10. The process of design, construction and testing of the physical model is described in detail. Measured deformations and stresses are compared with expected behaviour based on numerical analysis. The comparison proves good correlation between calculation and measurement, as well as high load bearing capacity of the structure.
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Prestressed road bridge in Staré Město
Krč, Rostislav ; Trenz, Jan (referee) ; Koláček, Jan (advisor)
The thesis focuses on design of superstructure of concrete bridge, which passes a roadway across the river Krupa in the town of Stare Mesto. It is a simple span structure with length of 19 meters. For further elaboration, post-tensioned concrete slab with trapezoidal-shaped cross section was chosen. Assessment of serviceability limit states and ultimate limit states according to recent European standards (Eurocodes) was made. Furthermore, a design of post-tension according to former Czech technical standards (CSN) was studied. The thesis includes technical drawings and visualization.
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Plan curved structures supported by arches
Trenz, Jan ; Zich, Miloš (referee) ; Vítek,, Jan (referee) ; Stráský, Jiří (advisor)
The aim of this doctoral thesis is the research of the plan curved footbridges with the deck supported by arch. The research is preceded by the survey of present findings about arch structures with upper deck. The summary of reasons and difficulties of design of plan curved structures follows. The appropriate approach for design of plan curved structure is searched on the basis of methods for design of straight structure. The design of arch which is subjected to minimal bending moments is emphasised. At first, the structure is designed in the same way as straight structure and the limit plan curvature (for which the method is not suitable anymore) is sought. Then the approach based on method of inversion of suspended cable is examined and adapted for designing of plan curved arch geometry. The approach is thoroughly analysed through calculation model and experimentally verified on physical model in scale 1:10. The process of design, construction and testing of the physical model is described in detail. Measured deformations and stresses are compared with expected behaviour based on numerical analysis. The comparison proves good correlation between calculation and measurement, as well as high load bearing capacity of the structure.
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Arch bridge across the highway
Olšák, Martin ; Trenz, Jan (referee) ; Nečas, Radim (advisor)
The subject of this diploma thesis is design of arch bridge across the highway. Has been elected self-anchored structure with span of arch 60 m and trapezoid bridge deck from prestressed concrete. The load effects is calculated by software Scia Engineer including time dependent analysis. The supporting structure is assessed for the ultimate limit state and serviceability limit state. Static assessment is done by hand calculation according to CSN EN 1992-2. Part of the thesis is drawing and visualization of the bridge.
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|
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Pedestrian bridge across the river Labe
Libiger, Martin ; Trenz, Jan (referee) ; Nečas, Radim (advisor)
The thesis deals with a design of the river Labe bridging in the city Hradec Kralove. In order to make option for cyclists and pedistrians to cross between shores. There were made three design variants. For detailed solution curved twin-arm arched structure was chosen. The aim of the thesis was design and assessment of Bering strucutre of the footbridge according ultimate limit states and serviceability limit state given by valid Eurocodes.
|
|
|
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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