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Pedestrian bridge across the river Svitava
Bezručová, Kristína ; Koláček, Jan (referee) ; Nečas, Radim (advisor)
The aim of this thesis is the design and analysis of pedestrian bridge across the river Svitava. Three variants were designed. The variant of one-span frame construction with a parabolic haunch was chosen for analysis. The calculation of load effects was made in software Scie Engineer. For evaluation was used MS Excel. The design and assessment are according to the europien standards. The time dependent analysis is not treated in this work.
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Stress ribbon curved structure
Kocourek, Petr ; Stráský, Jiří (advisor)
The theme of this doctoral thesis is research of footbridges curved in plan that are formed by stress ribbon. Recently, several noteworthy curved pedestrian bridges, which decks are suspended on their inner edges on suspension or stay cables, have been constructed. However, curved stress ribbon bridges have not been built so far. The goal of this study was to answer the question whether the use of curved stress ribbon structures is even possible. For this reason, in the first stage feasibility study of these structures has been prepared. Knowledge of both curved pedestrian bridges, which decks are suspended on their inner edge and straight stress ribbon has been used. For the mathematical modeling FEM software ANSYS was used. The obtained findings were further used to design a new type of a modern, aesthetic curved bridge for pedestrians. The structure is formed by slender reinforced deck, which is through the steel brackets on the inner side stiffened by steel section. Torsion of the deck, caused by curved structure and asymmetrical cross-section, is reduced by cable situated in the handrail. Footbridge span is 45 m, arc camber in plan is 10 m, free bridge width is 3 m. Described is a general structure effect, detail static and dynamic analysis was carried out. Designed structure including construction stages were experimentally verified on a fully physical functional 1:6 scale model. The thesis describes the model analogy used for the design of the model, its structural design and its implementation. The model was subjected to a series of load tests including the final ultimate strength test. Performed tests confirmed the good match of calculation with the reality, correctness of the design and high resistance of designed construction. Acquired results and experiences from design and realization of model form the basis for practical realization of studied structures.
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Design of cable-stayed pedestrian bridge
Uher, Lukáš ; Kulhavý,, Tomáš (referee) ; Nečas, Radim (advisor)
This diploma thesis aims to design a structure of pedestrian bridge over the Svratka river. To make a preliminary study of possible bridging, three different outlines were drafted. The cable-stayed variant was selected for further analysis. Two towers, inclined in both their longitudinal and transverse direction, support a cast-in-place post-tensioned concrete deck through stay cables anchored in the tower and the deck. After determining the desired initial state, a finite element analysis was carried out using the Ansys software. The capacity of all main load-bearing elements was checked so it meets the ULS and SLS design criteria in accordance with EN 1992 codes.
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Water park Brno
Liznová, Veronika ; Kotek, arch Jakub (referee) ; Odvárka, Antonín (advisor)
The topic of the diploma thesis is the solution of the Lužánky sport complex in Brno. The aim of the diploma project is to create a new modern sport recreation area which will be situated next to the existing swimming pool. The main object is an aquapark with indoor and outdoor pools. In area of the aquapark are other premises like wellness, fitness cen-ter, café and other small businesses. Proposed object should be connected to the exis-ting pool with a 50-meter track. Visitors could go from one place to the other without exiting the complex. Also included is the increase of indoor and outdoor parking. Around the complex a footbridge had been designed to connect all the sports facilities. The foot-bridge is intended for pedestrians and cyclists and is designed to avoid blocking car traffic. Main entrance to the aquapark is on the same level as the footbridge, on the 2nd floor. Visitors can go to the footbridge by pedestrian ramp, stairs or lifts. This complex will meet the requirements and current expectations of the visitors in the area. It will also increase the attractiveness of the entire territory.
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Pedestrian Footbridge across River
Sotáková, Miroslava ; Balázs, Ivan (referee) ; Brosch, Petr (advisor)
The purpose of this thesis is the design of a load-bearing steel structure of a pedestrian footbridge across the river Opava. Two variants were taken into consideration - steel tied-arc footbridge and truss footbridge. Tied-arc variant with orthotropic deck was found the most suitable for detailed proposal. The span of the footbridge is 65,00 m and height of the structure is 7 m.
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Cable supported bridge
Kolář, David ; Koláček, Jan (referee) ; Nečas, Radim (advisor)
The topic of this bachelor thesis is design of a footbridge across a river. The final version, which has been chosen from three designs differentiating in their static behaviour of the structure, is a cable-stayed footbridge. The chosen option is designed as a parabolic monolithic prestressed deck suspended by cables anchored to two cone shaped pylons. The structure is situated perpendicularly to the riverbed and its total length is 57,465 m. Softwares, such as SCIA Egineer 20.0 and MS Excel, were used for the calculations of internal forces and modelling calculation models and its verification by hand. The design of the prestressing force, assessment of utility limit state and serviceability limit state were done by hand according to valid standards and regulations. Partially simplified bearing capacity assessment of the pylons was solved by IDEA StatiCa 9 software and some of the results were verified by hand as well. The thesis disregards stages of construction and prestress losses are estimated.
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Pedestrian footbridge
Bílek, Radim ; Štrba, Michal (referee) ; Brosch, Petr (advisor)
The subject of this diploma’s thesis is design of the footbridge over Radlická street in Prague. Total length of the footbridge is about 90 m. Three variant designs were made with different systems of static construction. Based on the multi-criteria analysis, the most suitable variant was chosen. The variant A, a continuous truss beam, was chosen for detailed design. It is a truss footbridge with a lower orthotropic deck without a wind bracing. The stability of the upper chord is secured by frame stiffness of verticals and stiffness of the floor beam. Detailed static calculation includes assessment of load-bearing parts of the structure and assessment of welds. The structure is made of steel class S335. Assessment and dimensioning were designed according to valid standards ČSN EN 1990-1993.
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Arch structure footbridge
Machala, Zdeněk ; Glovina, Filip (referee) ; Nečas, Radim (advisor)
The subject of this master’s thesis is to design an arch structure of a footbridge. The bridge deck will be formed by a stress ribbon and could be divided into three parts. The middle part will be suspended (on the outer edges) on composite steel and concrete arches. Outer parts of the bridge deck will be formed by stress ribbons. The model of this construction is created in a computational program ANSYS and the solution is non-linear. The design is according to European standards.
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Suspension footbridge over the river Bečva
Sobková, Sára ; Šopík, Leonard (referee) ; Nečas, Radim (advisor)
The subject of this thesis is the design and assessment of a suspended footbridge for pedestrians over the Bečva River. Three variants of the crossing were created. The va-riant with a suspension structure was selected for detailed design. The chosen pede-strian footbridge is composed of two suspension cables supported by an inclined py-lon, anchored by a set of six anchoring cables. The design of the structure relied on finding the ideal geometry of the suspension cables. The computational model was created in the ANSYS Mechanical APDL 2023 R2 software. For the analysis of the deck in the transverse direction, model was created in the SCIA Engineer 21.1 software. The construction was assessed for ultimate limit state of serviceability and load-bearing capacity according to applicable standards, and a dynamic analysis was performed. The work includes clear and detailed drawings and visualizations.
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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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