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Highway multispan bridge over wide wally
Bobek, Lukáš ; Daněk, Ing Stanislav (referee) ; Klusáček, Ladislav (advisor)
The aim of this diploma thesis is to design and assess highway bridge. The structure is located on the D1 motorway section bridging a wide valley between the Slovak villages Doľany a Klčov. Three variants have been created – box girder bridge with transverse overhangs, a pair of girder bridge and a pair of box girder bridges. The various proposals were compared with each other. For the most valuable option is selected prestressed box girder bridge with transverse overhangs, which are supported by prefabricated concrete struts. The selected proposal was subsequently elaborated in detail, the load-bearing structure is analyzed using Scia Engineer 16. In calculating the internal forces is adjusted for the effects of construction methods, even as time-dependent analysis TDA. When designing the load-bearing structure it is considered the action of permanent load, also loading from transport and temperature. The structure is assessed for serviceability and ultimate limit states according to current standards. The bridge deck is built by incremental launching method. The principle of this method consists of building the segments in a casting yard located behind the bridge abutment. Each segment is matchcast against the previous one and prestressed to the section of structure already built. The whole superstructure is then jacked forward a distance equal to the length of this segment. This process is repeated until the bridge deck is in its final position. Chosen method of construction is very fast and efficient, to the country in the valley isn´t damage during construction.
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Roof beam in the industry hall
Šnobltová, Simona ; Bobek, Lukáš (referee) ; Klusáček, Ladislav (advisor)
The bachelor’s thesis deals with the assessment of the existing roof girder in the industrial hall and subsequent outline of strengthening this construction. The girder is located in an industrial hall in Lanškroun and its original design is dated from 1998. Nowadays, cracks appear on the girder, therefore it is necessary to reassess it according to the current valid standards ČSN EN. The girder is appraised for the ultimate limit state, thus for bending and shear, and also for the serviceability limit state, thus for the pressure limit, width of cracks and transformation. Due to the fact, that not all assessments pass, hence a suitable structure strengthening with a MonoStrand prestressing strands is designed and the construction is reassessed again. For the control of a manual calculations of the internal forces on girder, was created a structural model in a program called Scia Engineer.
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The design of bridge structure in Žďár nad Orlicí
Tomečka, Petr ; Bobek, Lukáš (referee) ; Klusáček, Ladislav (advisor)
The aim of Bachelor thesis is to design reconstruction of the bridge and assess of new load-bearing structure. From three possible solutions monolithic slab was chosen as best one. The design and assessment of load-bearing structure have been carried out to valid standards. The goal was to comply ultimate and serviceability limit state. The load effects calculations has been performed manually and by using software Scia Engineer 19.1. The thesis is supplemented by drawings and visualizations.
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Roof beam in the industry hall
Šnobltová, Simona ; Bobek, Lukáš (referee) ; Klusáček, Ladislav (advisor)
The bachelor’s thesis deals with the assessment of the existing roof girder in the industrial hall and subsequent outline of strengthening this construction. The girder is located in an industrial hall in Lanškroun and its original design is dated from 1998. Nowadays, cracks appear on the girder, therefore it is necessary to reassess it according to the current valid standards ČSN EN. The girder is appraised for the ultimate limit state, thus for bending and shear, and also for the serviceability limit state, thus for the pressure limit, width of cracks and transformation. Due to the fact, that not all assessments pass, hence a suitable structure strengthening with a MonoStrand prestressing strands is designed and the construction is reassessed again. For the control of a manual calculations of the internal forces on girder, was created a structural model in a program called Scia Engineer.
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The design of bridge structure in Žďár nad Orlicí
Tomečka, Petr ; Bobek, Lukáš (referee) ; Klusáček, Ladislav (advisor)
The aim of Bachelor thesis is to design reconstruction of the bridge and assess of new load-bearing structure. From three possible solutions monolithic slab was chosen as best one. The design and assessment of load-bearing structure have been carried out to valid standards. The goal was to comply ultimate and serviceability limit state. The load effects calculations has been performed manually and by using software Scia Engineer 19.1. The thesis is supplemented by drawings and visualizations.
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Highway multispan bridge over wide wally
Bobek, Lukáš ; Daněk, Ing Stanislav (referee) ; Klusáček, Ladislav (advisor)
The aim of this diploma thesis is to design and assess highway bridge. The structure is located on the D1 motorway section bridging a wide valley between the Slovak villages Doľany a Klčov. Three variants have been created – box girder bridge with transverse overhangs, a pair of girder bridge and a pair of box girder bridges. The various proposals were compared with each other. For the most valuable option is selected prestressed box girder bridge with transverse overhangs, which are supported by prefabricated concrete struts. The selected proposal was subsequently elaborated in detail, the load-bearing structure is analyzed using Scia Engineer 16. In calculating the internal forces is adjusted for the effects of construction methods, even as time-dependent analysis TDA. When designing the load-bearing structure it is considered the action of permanent load, also loading from transport and temperature. The structure is assessed for serviceability and ultimate limit states according to current standards. The bridge deck is built by incremental launching method. The principle of this method consists of building the segments in a casting yard located behind the bridge abutment. Each segment is matchcast against the previous one and prestressed to the section of structure already built. The whole superstructure is then jacked forward a distance equal to the length of this segment. This process is repeated until the bridge deck is in its final position. Chosen method of construction is very fast and efficient, to the country in the valley isn´t damage during construction.
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