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Risk assessment in the implementation of load tests on building structures
Ešpandr, Jan ; Vymazal, Tomáš (referee) ; Misák, Petr (advisor)
This diploma thesis deals with the analysis of the risks during the executing of the loading tests of building constructions. The thesis focuses on the explanation of some of the terms in the field of risk management, the description of the individual types of loading tests of building constructions, the identification of the risks during the loading tests and their assessment. Analytical methods were used for assessing of the individual risks. Ishikawa diagrams were used for the basic identification of the risks. These risks were further assessed in the FMEA analysis and the results were filled in the Pareto charts. In conclusion of the practical part of the diploma thesis the HRA method was used for the more precise assessment of the human failure in the whole process of executing of the loading tests of building constructions.
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Risk analysis and management technology phases roofs of buildings
Mík, Petr ; Bednářová, Bronislava (referee) ; Vymazal, Tomáš (advisor)
This master thesis deals with analysis and evaluation of quality, environmental and safety risks linked with two roof cover types. Malfunction analysis was carried out on the most risky roof cover component. Afterwards risk analysis was done according to ČSN EN 31010:2011 Risk management – Risk assessing techniques regulation. Following methods were chosen for risk assessment - Failure Mode and Effects Analysis (FMEA), RIPRAN method, cause-and-effect analysis (Ishikawa diagram) and Pareto chart. Using aforementioned methods, risks were identified and evaluated. Countermeasures for identified risks were suggested in conclusion.
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The comparison of testing methods using for determining the frost resistance of concrete
Kněbort, David ; Vymazal, Tomáš (referee) ; Kocáb, Dalibor (advisor)
The diploma thesis deals with the possibilities of evaluating the degradation of mechanical resistance of non-air-entrained concrete in the structure by frost cycles. The first part is focused on concrete, its resistance and test methods. This is followed by the definition of frost resistance, the effects of freeze-thaw on concrete at all stages of its service life and the possibilities of determining freeze-thaw resistance according to current standards. It describes in more detail selected test methods for determining frost resistance. In the practical part, it focuses on the determination of degradation resistance of test specimens made in molds and taken from the structure using reference and non-reference methods. In conclusion, it compares the different test methods and their suitability for the determination of freeze-thaw resistance.
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Simulation of Entities Collective Behavior in Virtual World
Vymazal, Tomáš ; Žák, Pavel (referee) ; Láník, Aleš (advisor)
Theme of this work is to evaluate and compare aviable paradigms for entity control in virtual worlds, and to implement one of these paradigms in application. Dynamic finite state machine upgraded using genetic algorithms has been chosen. This paradigm should make agent's behavior better and adapt agent to required state: i.e. make agent harvest resources in virtual world. Output of this work is application for running evolution and application for 3D view of agent's behavior.
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Analysis and assessment of risks in the construction of the shielding structures of medical irradiators.
Henzelová, Iveta ; Vymazal, Tomáš (referee) ; Hobst, Leonard (advisor)
The thesis focuses on the analysis and evaluation of the potential risks in the design and implementation of shielding structures against the effects of ionizing radiation. The rocedure of calculation and design optimization, according to the current wording of the Atomic Act and related regulations, is mentioned only marginally. According to DIN EN 31010: 2011 Risk Management - Risk Assessment Technique risk assessment were made by risk analysis. risk analysis. Risk management identified these methods - Analysis of the Causes and Consequences (Ishikawa diagram), Analysis Failure Mode and Effects (FMEA) and the Pareto diagram. These methods are implemented to identify and evaluate the associated risks. Based on the identification and assessment of these risks, appropriate measures are then proposed to reduce their impact.
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Influence of dosage of steel fibres on the loss of consistency of fresh concrete and compresive strength of hardened concrete.
Kuře, Václav ; Źalud, Oldřich (referee) ; Vymazal, Tomáš (advisor)
Bachelor work is focused on problems of a consistency of fresh fiber reinforced concrete. The consistency was characterized by a slump test and by a test of spilling how is it described in ČSN EN 12350. Obtained results are compared with a reference sample of a fresh concrete and between themselves. Further the work is focused on volumetric changes during maturation which are integral part of physical properties of the concrete. Influence of a dispersed reinforcement was monitored on the cube strength in plain pressure of individual mixed sample too. Total evaluation of tested parameters is states at the end of the work including comment about possible ways of interference of tests.
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Inspection of the implementation of reinforced concrete structures
Juráň, David ; Vymazal, Tomáš (referee) ; Cikrle, Petr (advisor)
This diploma thesis deals with the control of the implementation of reinforced concrete structures. The theoretical part deals with the issues of this theme. There are presented individual work processes of the implementation of reinforced concrete structures, accesses of valid standards, used diagnostic methods and also inspection and test plans for cast-in-place reinforced concrete structure. The practical part is divided into three chapters. The first chapter applies with the most frequent defects in new reinforced concrete structures and two remaining chapters with the inspection of newly built structures for which arose misgivings about the quality of execution.
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Aspects of building design focused on durability
Bučilová, Iveta ; Kocáb, Dalibor (referee) ; Vymazal, Tomáš (advisor)
The master´s thesis discusses the life of building structures in terms of selected causes of failures are listed and discussed in ISO 16204 - "Durability - Service life design of concrete structures". The selected causes of failures will be carbonation and frost resistance of concrete. These causes will be performed computational analyzes for few types of concrete, based on these anayzes will be possible to compare and analyze the requirements specified in standards ČSN EN 1990, ČSN EN 1992 and ČSN EN 206.
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Risk analysis and evaluation of sources of public water supply
Novotná, Aneta ; Bednářová, Bronislava (referee) ; Vymazal, Tomáš (advisor)
The thesis is focused on the identification, quantification and assessment of risks in the supply of drinking water, the application of appropriate methods for specific public water supply, the environment and operation. WaterRisk method based on EN 31010 Risk Management - Techniques of risk assessment methods are chosen - analysis of possible defects and their consequences (FMEA), Pareto diagram and Ishikawa diagram. The aim of the thesis is analyze and assess the quality, environmental and safety risks to the public water supply system and use tools for their management and elimination. The results will be compared and evaluated the advantages and disadvantages of each analysis.
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Using fuzzy clustering in modelling of hardened concrete properties
Haluska, Lukáš ; Vymazal, Tomáš (referee) ; Misák, Petr (advisor)
Compressive strength is one of the most monitored parameter of hardened concrete and it is usually determinated by destructive testing. Non-destructive testing applied on existing constructions uses regression analysis to estimate compressive strength. High variability of outputs and eventually failure of necessary requirements for using regression analysis complicate these methods. The aim of this thesis is to show posibility of using fuzzy clustering in this topic and to compare outputs with classic methods.
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