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Cable-supported bridge
Adler, Filip ; Glovina, Filip (referee) ; Nečas, Radim (advisor)
The subject of this master thesis is to design a pedestrian bridge supported by cables. There are three variants of studies created for this case and for most suitable one, all documentations were produced. The primary focus of this work is on static design solution with an output of several drawings. Static model for results from load cases included construction stages and was created in Midas Civil. Design and checks were performed by hand calculations, complemented by checks of several sections by IDEA StatiCa software. Analysis and calculations are compliant to up-to-date codes and respect the fundamentals of analysis due to limit states.
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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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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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Road bridge over the Kráľová waterworks
Pastucha, Marek ; Novák, Richard (referee) ; Nečas, Radim (advisor)
The subject of the thesis is the design of a road bridge over a river. A suspended bridge was chosen from three variants. The calculation of internal forces was done in the SCIA Engineer program and the assessment was done by manual calculation, in the MS Excel program and in the IDEA Statica program. The construction was assessed for the limit state of bearing capacity and usability. The calculation was made according to valid standards.standards.
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Cable-supported bridge
Kovářová, Marika ; Bezručová, Kristína (referee) ; Nečas, Radim (advisor)
The theme of the thesis is to design a pedestrian bridge over a river. Out of two possible designs, the cable-stayed construction was chosen. The deck of the bridge is designed as a monolithic construction supported by cables from two inclined pylons. Two models were developed for the calculation of internal forces: a strut model for the longitudinal direction and a plate model for the perpendicular direction. These calculations were checked up by Finite Element Method (FEM) in SCIA Engineer 2017 software. Considerable part of the thesis was dedicated to the creation of so-called initial state. The design of the prestressing force and the evaluation of ultimate limit state and serviceability limit state was made in accordance with the codes currently in force. Small part of the theses is dedicated to the verification of the load bearing capacity of the pylon on the combination of normal force and bending moment with a subsequent verification in the software IDEA StatiCa9. The pedestrian bridge of 64,150 m length is considered as a perpendicular.
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One span cable-supported bridge
Kučerka, Ján ; Koláček, Jan (referee) ; Nečas, Radim (advisor)
The theme of this bachelor thesis is the design of a footbridge across the river. The design is processed by two options. The chosen option is designed as a cable-stayed construction supported by cables. Bridge is designed as perpendicular with total length 66,225m. Superstructure is made by prestressed monolithic deck suspended by cables from sloping pylon. Considerable part of the thesis is devoted to creating a so-called initial state. The calculation of internal forces was done by calculation software Scia Engineer 2018. The design of prestressing force, assessment of ultimate limit state and serviceability limit state were done by hand according to the valid standards and regulations. Bearing capacity assessment of pylon was solved by IDEA StatiCa 9 software and some results were verified by hand. The thesis disregards rheological effects and stages of construction.
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Pedestrian Bridge
Hibš, Daniel ; Kocourek,, Petr (referee) ; Stráský, Jiří (advisor)
This diploma thesis deals with the design of a new bridge construction over a multi-lane communication. The converted road is a pedestrian and biking trail connecting significant agglomerations. Three studies were worked out in this thesis and the C variant was selected for further detailed processing. It is an unsymmetrical suspended bridge with a cast-in-place deck. In the section above the communication, the bridge is made up of prefabricated segments. Suspension of the structure is made of two sloping pylons forming a V-shape. The analysis of the construction was carried out in the MIDAS Civil program, where a complete model of construction was entered, including a subsequent estacade. The model describes the construction process and includes creep and shrinkage of the concrete. The traffic, temperature and wind loads were used. The design was assessed for the ultimate limit states and serviceability limit states. The assessment was carried out in the IDEA StatiCa program, supplemented by manual calculations. The static calculations also include assessment of the harmonic response. Subsequently, overview drawings, detailed drawings and visualizations were developed.
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Footbridge across the expressway
Páleník, Petr ; Kocourek, Petr (referee) ; Nečas, Radim (advisor)
The aim of this master thesis is a design of the pedestrian bridge across the highway. The bridge is formed by a slab structure of 6 spans with lenghts from 9 to 51 m. The main spans are suspended on a V shape pylon. The deck of the span across the highway is assambled of precast segments and composite deck slab. The deck is in the lenghtways kept in the parabolic arch. The model of the construction is made in software ANSYS, the solution was done non-linear. The design and assessment are according to the europien standard.
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Arch footbridge over the Bečva River
Matěják, Jan ; Sliwka, Pavel (referee) ; Nečas, Radim (advisor)
The subject of the thesis is the design of a footbridge over the Bečva river in Vsetín. Three studies of possible designs have been prepared, two of which are further elaborated. The first variant is studying a footbridge supported by an outwardly inclined arch supporting the footbridge from one side. The second variant is supported by outwardly inclined steel arches on both sides. This option is further expanded in the form of a structural calculations, drawings and the footbridge is also assessed in terms of structural dynamics.
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Footbridge across the river Opava
Kolář, David ; Romportl, Tomáš (referee) ; Nečas, Radim (advisor)
The master´s thesis topic is design of a footbridge across Opava river. Out of two different designs, a self – anchored suspension footbridge was chosen and necessary documentations wer produced. The primary focus of the thesis is on static design solution with an output of several drawings. The model created in ANSYS includes different load cases together with construction stages. To support the results, checks and hand calculations via MS Excel were completed, as well as static analysis of transverse behaviour of the deck using SCIA Engineer software. Analysis and calculations are compliant to up-to-date coades and respect the funfamentals of analysis due to limit states.
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