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Diagnostic properties of concrete exposed to high temperatures
Hudský, Petr ; Sitek,, Libor (referee) ; Bodnárová, Lenka (advisor)
This master’s thesis studies the problems of high temperatures on cement concretes, their following diagnostics from pre-treatment to rehabilitation, the emphasis was on the use of high-speed water jet. In the experimental part of the design of a concrete composition with basalt aggregate. Were reviewed the physico-mechanical properties after thermal loading. The influence of pressure water jet on the thermal load on concrete, pull-off test, the volume of the removed concrete with a strength evaluation and comparison.
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Structural Analysis of Steel Members in Fire
Runštuková, Monika ; Kytýr, Jiří (referee) ; Gratza, Roman (advisor)
This thesis deals with solution of steel members under fire conditions. The goal of the thesis is to examine and compare unprotected steel members with steel members protected by different types of passive protection. Calculation is performed according to applicable design standards. ANSYS software is used for thermal and structural analysis.
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Significance of emergencies modelling using specialized programmes
Ruhásová, Aranka ; Mika, Otakar Jiří (referee) ; Fazekas, Monika (advisor)
The Master's Thesis deals with the usage of various software tools in emergency management and in environmental protection. Nowadays, on every step we make, we can face emergency situations which can cause great harm to the environment as well as to human life and property. The theoretical part provides an overview of software tools. Different software tools, their basic parameters, development and usage are described. There are also explained terms like geographic information system, etc. The practical part is focused on the instruments used in selected countries, including Czech Republic, Slovak Republic, Hungary, USA, Canada and the United Kingdom. In the conclusion is the comparison of the effectiveness of software tools in emergency management and in environmental protection.
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Evaluation of environmental load by polybrominated diphenyl ethers
Roček, Richard ; Stoupalová, Michaela (referee) ; Vávrová, Milada (advisor)
The target of my diploma thesis is evaluation of soil load by polybrominated diphenylethers. This is the soils, which were affected by fire and comparsion with load by soils, which were not affected by fire. In teoretical part available informations about BDE from various sources are processed. Target of practical part is find the optimal method for determination BDE, verification of her yield a determination of reals samples with using this method. In the end this thesis contains measured results, its interpetation in tables, graphes and evaluation of load by individual congeners. Key is comparsion load of soils, which were affected and which were not affected by fire. BDE are released during the fire and we can decide that soils which were caused by fire should be contaminated more, than soils, which were not caused by fire.
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Evaluation of the investigation of fire causes in big accidents
Kavka, Martin ; Vojtěchovský, Filip (referee) ; Valášek, Rudolf (advisor)
The objective of this work is analysis of current status in the sector of detection of the causes of fire in the Czech Republic, including embedding of this activity in legislation, make an overview of major fires in the Czech Republic in recent 10 years and make a statistic of fires, which caused damages exceeding CZK 5 million. Evaluate these events in terms of causes of fire. Next objective of the work is analysis of the hazard and expected specialities on the investigation spot of fire causes and evaluate the differences in procedure of investigating causes of fires in terms of major events. It solves the activities and cooperation of investigator of causes of fires with commander of intervention and unit with respect to maintaining of stops for consequent documentation and investigation. Make a design for equipment for investigator of causes of fires and make a design for protection against hazard which is on the place of intervention.
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Possibilities of rehabilitation of concrete structures damaged by high temperaturesv
Vovesný, Václav ; Sitek,, Libor (referee) ; Bodnárová, Lenka (advisor)
The bachelor thesis studies the behavior of the cement concrete exposed to high temperatures. The theoretical part describes the processes in the concrete structure and its individual components. It also describes the diagnostic possibilities of the concrete and its subsequent rehabilitation. In case of rehabilitation and surface pretreatment possibilities, the emphasis was mainly placed on the high-speed water jet. Physical-mechanical properties of the samples were verified by heavy load of pressure from high-speed water jet and high temperature in the experimental part.
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Rescue of Persons during the Fires of Hight Buildings
Kulhánek, Jan ; Bíla, Jan (referee) ; Valášek, Rudolf (advisor)
Objective of this work is to process the research of fires in high-rise buildings in the Czech Republic in recent 10 years in terms of their effects, number of evacuated people and rescued persons by fire unites. It evaluates causes of injury and death during fires in high-rise buildings and reasons leading to the use of emergency sources by fire unites. It evaluates equipment in high-rise buildings from point of view of function of safety device against fire and equipment installed for intervention in high-rise buildings and it evaluates negative effects which affect the action of fire unites, especially in terms of evacuation and rescue. It analyses various ways to rescue people from point of view of possiblity using fire unites, the availability of life-saving equipment and the speed of rescue. It makes a design for involvement of forces and sources of other components of integrated rescue system to the process of human rescuing.
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