|
|
Removal of the masonry pillar in the front wall of the apartment house
Vítková, Barbora ; Bažant,, Zdeněk (referee) ; Strnad, Jiří (advisor)
This thesis focuses on the removal of the masonry pillar from the front wall of an apartment house. The masonry pillar should be replaced with two steel columns in a given axis distance. The parts of the thesis are a technical report, a static calculation and a graphic documentation. The description of the current object and the proposed solution is included within the technical report. The static calculation deals with a calculation of the strain and the enhancement of the current ferroconcrete lintel on the ground and first floor. A proposal of the solution, which is determined by the static calculation, is evident from the graphic documentary.
|
|
| |
|
| |
|
|
Risk analysis of load bearing RC structure review
Bohatec, Jiří ; Laníková, Ivana (referee) ; Šimůnek, Petr (advisor)
Master´s thesis deals with the evaluation of existing structures according to ISO 13822, discusses the dangers that can in determining the reliability of existing structures occur. This standard shall consider the risks by analyzing the possible occurrence and impact of defects (Failure Mode and Effects Analysis). In a concrete example shows a process for determining the reliability and suggest the increase. On a practical example I use a universal risk analysis matrix (Universal Matrix of Risk Analysis) with, identify and quantify the significance of the various dangers associated with project implementation.
|
|
| |
|
|
Static reconstruction of the baroque wine cellar
Kešiar, Szabolcs ; Bažant,, Zdeněk (referee) ; Strnad, Jiří (advisor)
The diploma thesis is focused on the design of structural support and construction modifications of a baroque wine cellar, which is part of a double-storeyed house. The first part deals with the statical analysis and structural support of a masonry barrel vault, which was loaded with a new building. The second part deals with the reconstruction of the double-storeyed object, which is in a state of disrepair with heavily developed cracks. The thesis contains a technical report, analysis of statics, drawing documentation and the work progress. The calculation of internal forces were executed by the software Scia Engineer 2017. The drawing documentation contains a formwork and reinforcement drawing, maping of cracks, leading of tensions in the walls and vault including of floor plans, sections and elevations, production plans of base plates and deviators, reinforcement drawing of concrete bond beam and finally the construction process of upper construction.
|
|
|
Modelling of differential current amplifier
Polák, Josef ; Šotner, Roman (referee) ; Jeřábek, Jan (advisor)
The aim of my diploma thesis was programming of systems for measuring AC, DC and impedance measurements. Each measuring system measures selected characteristics of current amplifier with controllable amplification DACA_N. Control programs I have created in Agilent VEE Pro 9.2. The measured data are stored to executable files in MS Excel for further processing. With created measurement programs I made measurements of eight current amplifiers. The results of individual measurements I compiled into graphs and compared with each other circuit characteristics of amplifiers. Then there is described controlling and connection of current amplifier and its construction. At the end the diploma thesis describes amplifiers with the worst and the best measured circuit characteristics. The measured values show that the amplifier DACA_N with slight differences works by theoretical assumptions and measurement systems suggested by me work with no problem.
|
|
|
Active RC filters using CMOS technology
Veverka, David ; Kledrowetz, Vilém (referee) ; Háze, Jiří (advisor)
This work deals with issues of active RC filters and their application using CMOS technology. The work focuses on basic sumarization of fundamental knowledge about function of active RC filters but it also describes basic characteristics and parameters. The defined parameters are utilized in bachelors thesis. A research has been made about the current state in discussed topic and from this research there were derived parameters for simulations that are shown in the practical part of this work.
|
|
|
Risk analysis of load bearing RC structure review
Bohatec, Jiří ; Laníková, Ivana (referee) ; Šimůnek, Petr (advisor)
Master thesis deals with the evaluation of risks in the course of strengthening reinforced concrete column. It describes the assessment of existing structures according to ISO 13822, discusses the dangers that can occur when determining the carrying capacity of the existing structure. It also describes the different phases of strengthening steel banding, their functions and influence on the overall capacity. Also showing calculation process of strengthening reinforced concrete column, using steel banding, based on standard EN 1992-1-1 and EN 1998-3. In a concrete example of reinforcement is shown a process for determining the carrying capacity and then designed to the increase. In the two examples performs risk analysis using the universal matrix of risk analysis that identifies and quantifies the importance of various hazards associated with the calculation and implementation of the project.
|
|
|
Reinforcement concrete column strengthening via steel bandage
Stloukal, Štěpán ; Laníková, Ivana (referee) ; Šimůnek, Petr (advisor)
The steel bandage is an economical and effective widely used method for strengthening RC columns. Diploma thesis reviews most common design proposals for the types of the bandage with directly loaded and not directly loaded steel angles. This work also includes a comparison of the different constitutive laws for confined concrete. In order to simulate real behaviour of strengthened structure the numerical analysis has been carried out using non-linear software ATENA. According to the European standards and adopted hypotheses the simplified analytical model has been derived to be able to calculate load-bearing capacity of a strengthened column under normal force and bending moment. The proposed model considers the contribution in confinement pressure caused by steel bandage and the contribution of directly loaded angles. In addition, the direct application on real frame structure has been performed.
|
guest ::
