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Apartment Building - Design of Selected Reinforced Concrete Elements
Jakoubek, Lukáš ; Horák, David (referee) ; Švaříčková, Ivana (advisor)
The bachelor thesis is focused on the continuous static solutions of monolithic reinforced concrete ceiling construction and the three-flight staircase in the five-storied apartment house. The entire structure is designed from concrete. To determine the effects of internal forces used computational design of Scia Engineer 2013.1. Assessment of the elements is performed by the first limit state. Work includes developing a static calculation, design reinforcement drawings, shapes and reinforcement drawings solved elements.
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Bridge in Lipová Lázně village
Christ, Roman ; Bezručová, Kristína (referee) ; Panáček, Josef (advisor)
The subject of this bachelor thesis is the design of a perpendicular bridge structure across the Staříč River in the village of Lipová Lazne. The bridge translates communication II. class number 369, design category S7,5. Three design variants of the plate bridge are elaborated on a single field. The chosen variant is solved by means of an additional prestressed plate of a rectangular cross-section of height from 1000 mm to 920 mm in width and length of the supporting structure 20850 mm. The static model is solved as a simply supported plate with a bridging length of 18420 mm. The design was executed according to the standard ČSN-EN 1992-2. Calculation of load effects was performed using Scia Engineering 2019 software. Design and design assessments have been carried out according to the applicable regulations and norms.
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Design of technical measures in LV distribution network with a high value of short-circuit currents
Šmehlík, Daniel ; Bátora, Branislav (referee) ; Ptáček, Michal (advisor)
This bachelor thesis discusses the sizing and the possibility of reducing large short circuit ratios. For a specific scheme of an industrial building, which will be fed from three transformers, the sizing will be done by means of the SICHR program. The specific objective of the technical solution is to be able to use modular circuit breakers with a ripping capability of short-circuit currents up to 10 kA in the terminal switchboards. Another objective of the work is to perform an economic evaluation of the proposed solution, or to optimize the design from the point of view of the economic aspect in meeting the technical requirements.
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Reconstruction of a transformer station with a substation for auxiliary systems
Novický, Marek ; Wasserbauer, Vojtěch (referee) ; Jurák, Viktor (advisor)
The master thesis deals with the premises of the Staré Brno heating plant, where there are two 22 / 0,4 kV transformers used to supply the heating plant's auxiliary system. The thesis deals with theoretical areas related to the planned design. After theoretical section is following a detailed description of the recent state of HV and LV substations and transformers. The scope of work is the design of new transformers, HV substations and LV substations, central compensation. At the end of the thesis is discussed the economic side of transformers.
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Influence of glass fiber degradation on the mechanical response of a polymer composite
Součková, Lenka ; Knob, Antonín (referee) ; Čech, Vladimír (advisor)
The bachelor thesis studies the effect of fiber degradation with commercial sizing on the flexural properties of polymer composite based on unsaturated polyester resin reinforced with long unidirectionally oriented glass fibers. Fibres of age 23, 61, 67, 112 and 135 months were used to prepare a series of composite samples. The mechanical properties of a composite containing 40.5% % vol of fiber were determined using a three-point bending test defined by ASTM D790-17 standard. From the obtained data, the flexural strength, the flexural modulus and the flexural strain were evaluated. It has been found that the degradation of the fibers and their sizing leads to a reduction in flexural strength. This was due to the reduction of adhesion between the fibers and the matrix, thus also the quality of the interface, which caused insufficient stress transfer from the matrix to the fibre. The resulting difference in strength of composites with fibers aged 23 and 135 months was 0,19 GPa with respect to the origin value of 1,17 GPa. The obtained values were used to assess the correlation between the flexural strength of the composite and the shear strength. Pearson's correlation coefficient set at 0,71 corresponds to a strong correlation. The effect of fiber degradation on the flexural modulus has not been demonstrated.
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Technical and economic comparison of electrical system designs of the hotel complex
Šedivý, Tomáš ; Jurák, Viktor (referee) ; Ptáček, Michal (advisor)
The aim of the bachelor thesis is to implement the designs of electrical power supply of a selected hotel complex and related technical and non-technical comparison. The subject is specifically to compare the power supply solution options through a centralized power centre, separate transformer stations located within the complex, for example in terms of the evaluation of active power losses on the line, investment and operating costs or in terms of space requirements, etc.
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An apartment building with the use of renewable energy
Poul, Jiří ; Horká, Lucie (referee) ; Vyhlídalová, Karolína (advisor)
The aim of the master's thesis is to propose a suitable heating system and hot water supply in two variations for a residential building in Prague. The residential building is constructed on a sloping plot, consisting of one underground floor and three above-ground floors. The first underground floor accommodates a collective garage and cellar compartments, while the above-ground floors house 18 apartments. The heating system is based on hot water circulation, with heat distribution to the heated rooms facilitated by panel radiators. The first variation for hot water supply involves a storage water heater, and the second variation includes the integration of solar collectors. The theoretical part focuses on introducing solar collectors, exploring their types, placement, and prevalence worldwide.
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Administration Building in Brno
Benda, Lukáš ; Podroužková, Božena (referee) ; Jeneš, Rostislav (advisor)
The bachelor thesis is aimed for design of monolithic reinforced concrete slab of residential building, elaboration of shape and drawings of reinforcement of selected structural element. The slab is situated over the first floor. Calculation of internal forces is made by software system SCIA Engineer. Results of internal forces are compared with results of simplified method. Another part of this document is about issues in calculating of locally supported slabs and is done comparison of results by ČSN EN 1992 and ČSN 73 1201. Finally I performed design of concrete double cantilever column.
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A Low Voltage Wiring System for an Office Block
Nestrojil, Martin ; Slavata, Petr (referee) ; Kadlec, Radim (advisor)
This paper describes the design of a low voltage network in an office building. In the beginning work is given for the theoretical part of the topics that we need to create a network design in a given building. In this part of the guiding principles are conductor sizing, fuse wires and a selection of protective devices. Everything was sought in scientific publications and Articles. The theoretical part will be followed by a practical part with the first adjusted underlying schema, and then will address a practical design using programs supplied by the company Eaton. The goal of this work is to get acquainted theoretically with the main principles of network design, and then practically with your programs and create a complete network design of the building.
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