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Creation of a program code for evaluation and display of inner resultants in beams
Kupka, Jiří ; Horníková, Jana (referee) ; Burša, Jiří (advisor)
The work is aimed at solution of problem with evaluating the values and courses of resulting inner effects. The goal is to algorithmize the calculation and its graphic interpretation. The main mphasis was on the correctness of numerical results and their correct depiction. Integral approach of olution and its logorithmization was chosen as suitable calculating model for given task. The algorithmus of the program itself was written in programming language C++. Thereinafter the basis of the sphere of tress and strain analysis in beams, the knowledge of which is neccessary for the given solution of the roblem or it is presumed.
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Use of laser technology in conditions of job-order manufacture
Popela, Martin ; Slaný, Martin (referee) ; Osička, Karel (advisor)
The thesis is focused on theoretical analysis and physical description of laser beam technology. It deals with possibilities and concrete methods of laser technologies in perspective of metal machining and in detail it describes CO2 laser and its inclusion to the manufacturing process in concrete engineering company. Further it describes the components base and the construction technology of typal representatives. The thesis includes the proposition of solution of increase the productivity of the laser workplace and also technical and economical evaluation of this technology.
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Storage hall
Osyková, Martina ; Šulák, Pavel (referee) ; Laníková, Ivana (advisor)
The master thesis ´´Storage hall” deals with designing of selected elements prefabrikated skeleton hall. Discussed elements are truss, beam, girder, column and prefabricate footing. Within above mentioned elements was carried out static analysis, design of reinforcement and reinforcement drawings. Analysis of internal forces for columns and prefabricate footing was carried out with usage of the program Scia Engineer, 3D model of the whole object was created. Analysis of internal forces for the rest of elements was carried out with help of manual calculation. Those elements were designed with consideration of ultimate limit state. Serviceability limit state assessment was carried out within the truss.
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Reinforced concrete structure
Vaněčková, Adéla ; Čairović, Dorde (referee) ; Šulák, Pavel (advisor)
The aim of bachelors thesis is to design of the frame monolithic reiforced concrete frame construcition of a multistoried garage. Project designe sof a typice storey of construction. The supporting structure consist of a frame consisting of rungs, which are stored by beams and slab. Rungs are supported by columns. Reaction of the structure are transmitted to the foundation soil by footings. The design was made according to standard ČSN EN 1992 – 1 – 1. Structural analisis was modeled using Scia Engineer 20014 – Student vision. The results were validated by simplified manual method.
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New family house in Poříčí nad Sázavou
Figuli, Juraj ; Perla, Jan (referee) ; Koláček, Jan (advisor)
This diploma thesis involves design and assessment of the supporting elements of a two-storey family house ceiling construction. The slab components are pairs of beams and translations. I have choose two variants of solution for a long span elements. The first variant includes reinforced concrete elements only and in the second one prestress is used for beams, because of reducing construction height requirements. The basic model was evaluate by the calculation program Scia Engineer 2013, so I made 2D model of a slab in the program and joined 1D elements to the slab like a ribs. Selected prestress reduces a construction height, so it matches the desired appearance.
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Nonlinear analysis of reinforced concrete structures
Král, Petr ; Salajka, Vlastislav (referee) ; Hradil, Petr (advisor)
The aim is to design and evaluate nonlinear beams analysis, which will be subjected by four – point bending. Nonlinear analysis will be performed and evaluated on three beam models, the first of which will be made from plain concrete, the second of which will be made from reinforced concrete with reinforcement bars in the domain of tensile stress and the third of which will be made from reinforced concrete with reinforcement bars in domains of tensile and compressive stress. The thesis will be included formation of appropriate FE models, performance of nonlinear calculations with using nonlinear material model from a library of nonlinear material models multiPlas in the programming environment of software ANSYS and subsequent evaluation of results. Evaluation of results will consist from evaluation of nonlinear beams analysis and from evaluation of beams analysis according to ČSN EN 1992 – 1 – 1 without reinforcement bars and with reinforcement bars in these variants, next from comparison of nonlinear beams analysis with a beams analysis according to ČSN EN 1992 – 1 – 1 and finally from evaluation of the yield condition, which will be applied to the beams.
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Design of small CNC milling machine
Kubálek, Petr ; Pavlík, Jan (referee) ; Blecha, Petr (advisor)
This bachelor thesis deals with the design and construction of a small CNC milling machine. The thesis contains basic divisions and an analysis of the availability of small CNC milling machines. It also contains calculations of the cutting parameters of the selected tool and feed axes. Finally, there are presented some variants of the mainconstruction parts. The thesis also includes 3D model and drawing documentation.
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The use of internal composite reinforcement in the design of durable concrete structures
Koriťáková, Martina ; Januš, Ondřej (referee) ; Girgle, František (advisor)
The diploma thesis deals with processing of determining the shear strength of concrete structures reinforced with composite reinforcement, subjected to shear force, according to five different design approaches. The theoretical part of the thesis is closely related to the project FW01010520 - "Development of bent composite reinforcement for environmentally exposed concrete constructions", which is realized at the Institut of Concrete and Masonry Structures, Faculty of Civil Engineering, Brno University of Technology. The project deals with the shear strength of concrete beams reinforced with steel and composite reinforcement in various combinations. Then the load-bearing results gained within the project are compared with the values obtained by calculations according to the solved design approaches and computer software Atena Science. The second part of the diploma thesis deals with the static design and assessment of the cell structure. The cell is designed as a room inside of the medical building, where is placed device of magnetic resonance which is the reason why the cell is reinforced with non-magnetic composite reinforcement.
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Welding with laser machines
Hanáková, Anna ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
This bachelor thesis is focused on the usage of laser beam and laser beam machines in engineering. It will be mainly focused on laser beam welding (LBW). History of laser, its development and principal are all described in the opening part of this bachelor theses. Types of lasers and its use are also included. Next part is focused on laser welding itself. Thus, welding methods, parameters entering the process and advantages/disadvantages of this technology are introduced. The last theoretical part includes material tests of welded joint and outputs of those tests. In the experimental part the process of laser welding itself is presented and the results of tensile test are described.
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