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Semi-detached house, Lanskroun
Němec, Ondřej ; Kalábová, Tereza (referee) ; Bečkovský, David (advisor)
The bachelor thesis is based on design of semi-atteched house on the street Slovenské in Lanškroun. Bulding plot is situated in new city quarter determined for family houses outside the city center. Shape of semi-atteched house is almost rectangle and it is made of two parts where each part is designed for family of four to five members. All living rooms are oriented to south that allows residents to enter the garden and the patio in first floor. Each part of house includes garage for one car.
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Lateral-torsional buckling of steel beams with restraints out of bending plane
Balázs, Ivan ; Vejvoda,, Stanislav (referee) ; Studnička,, Jiří (referee) ; Melcher, Jindřich (advisor)
The doctoral thesis focuses on problem of stability of steel thin-walled beams with lateral and torsional restraints along the spans. Theoretical background of lateral-torsional buckling of an ideal beam with and without restraints preventing out-of-plane buckling is briefly described. In the following chapters the problem of stabilization of steel thin-walled beams by planar members is dealt with. The state of the art in this field is summarized and some open questions are identified. The research in this field could bring new findings about actual behavior of these structural systems. The rate of stabilization can be quantified using values of shear and rotational stiffness provided to a thin-walled member by a planar member. In the frame of the thesis the problem of torsional restraint given to steel cold-formed members by sandwich panels under load is discussed. In case of the uplift load applied on the sandwich panels the torsional restraint should be verified by experimental analysis. To contribute to this field, experimental verification of rotational stiffness provided to steel cold-formed beams by sandwich panels was proposed and performed. Torsional restraint under no external load as well as under uplift load applied on the panels was investigated. The purpose was to obtain the values of the rotational stiffness provided by planar members. The performed tests indicate significant and practically applicable rate of the torsional restraint even in case of the uplift load on the surfaces of the panels. Utilization of the values of the rotational stiffness might result in more economical, effective and reliable structural design. Selected problems were investigated using numerical modeling in a finite element method based software.
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Boundary problem for beam deflections
Machalová, Monika ; Šremr, Jiří (referee) ; Opluštil, Zdeněk (advisor)
This bachelor's thesis deals with the deflection of the beam. The second chapter is devoted to the linear differential equations and their solution, followed by a description of the different types of prescribed boundary conditions. In the third chapter the linear differential equation of second and fourth order for the deflection of the beam is derived. The last chapter is focused on comparing linear and nonlinear models. The theory is complemented by some solved examples, in which analytical solutions are plotted by using mathematical software Matlab.
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Spatial Decomposition for Differential Equation Constrained Stochastic Programs
Šabartová, Zuzana ; Mrázková, Eva (referee) ; Popela, Pavel (advisor)
Rozsáhlá třída inženýrských optimalizačních úloh vede na modely s omezeními ve tvaru obyčejných nebo parciálních diferenciálních rovnic (ODR nebo PDR). Protože diferenciálních rovnice je možné řešit analyticky jen v nejjednodušších případech, bylo k řešení použito numerických metod založených na diskretizaci oblasti. Zvolili jsme metodu konečných prvků, která umožňuje převod omezení ve tvaru diferenciálních rovnic na omezení ve tvaru soustavy lineárních rovnic. Reálné problémy jsou často velmi rozsáhlé a přesahují dostupnou výpočetní kapacitu. Výpočetní čas lze snížit pomocí progressive hedging algoritmu (PHA), který umožňuje paralelní implementaci. PHA je efektivní scénářová dekompoziční metoda pro řešení scénářových stochastických úloh. Modifikovaný PHA byl využit pro původní přístup prostorové dekompozice. Aproximace diferenciálních rovnic v modelu problému je dosaženo pomocí diskretizace oblasti. Diskretizace je dále využita pro prostorovou dekompozici modelu. Algoritmus prostorové dekompozice se skládá z několika hlavních kroků: vyřešení problému s hrubou diskretizací, rozdělení oblasti problému do překrývajících se částí a iterační řešení pomocí PHA s jemnější diskretizací s využitím hodnot z hrubé diskretizace jako okrajových podmínek. Prostorová dekompozice byla aplikována na základní testovací problém z oboru stavebního inženýrství, který se zabývá návrhem rozměrů průřezu nosníku. Algoritmus byl implementován v softwaru GAMS. Získané výsledky jsou zhodnoceny vzhledem k výpočetní náročnosti a délce překrytí.
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Survey and Assessment of highway D2 Bridge
Výpustek, Libor ; Suza, Igor (referee) ; Cikrle, Petr (advisor)
This thesis deals with the exploration and evaluation of the existing bridge carried him on the highway D2. The work is divided into theoretical and practical parts. The theoretical part focuses on the technical surveys, diagnosis of building structures and some methods of investigation and testing of building structures. In the practical part the visual inspection and diagnosis of disorders of the highway bridge substructures ev. No. D2-058, to determine material characteristics substructure and evaluate the state of the bridge. In conclusion, the practical part of the recommendations for the design and method of repairing the bridge.
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Exact solution of bending vibrations of beams
Machoň, Matěj ; Habán, Vladimír (referee) ; Havlásek, Michal (advisor)
The bachelor’s thesis deals with the analytical determination of eigenfrequencies and mode shapes of the prismatic beam. The solution is compared with the experimental data and validated. The analytical relations for determination of eigenfrequencies and mode shapes of prismatic beam expressed by basic functions and also by Krylov functions are the results of the thesis.
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Roof construction over scating ring
Pospíšilová, Lenka ; Pinkas, Karel (referee) ; Klusáček, Ladislav (advisor)
This document describes the design of the roof structure for the dimensions of the rink. It was designed and evaluated three roofing solutions – steel truss structure, concrete arch with external prestress and prestress truss roof girder with concrete roof panel. One option was selected – prestress truss girder. This variant has been further developed. In the beginning was drafted several proposals geometry respecting the demands on the type of construction. Within the static calculation was created a mathematical model of the structure of the program Scia Engineer. Using this model were obtained values needed for the assessment of individual elements of construction and design assessment as a whole for the ultimate limit state and usability. According to the proposed geometry and opinions parts of the structure was drawing documentation structure as a whole and individual parts of the structure solved in this thesis. The last proposal was visualized structures together with the phases of the construction by program ArchiCAD and rendered by program Artlantis.
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Comparison of alternatives house ceiling
Jarmara, Pavel ; Šulák, Pavel (referee) ; Laníková, Ivana (advisor)
Main goal of this bachelor thesis is design, assesment and comparison of two variations on ceilling construction specifically between reinforced concrete slab and system from company Porotherm – beams and floor block Miako. Internar forces are calculated both in Scia Engineer 2013.1 and manually. Secondary goal consists in designing and assessing of reinforced concrete stairway. Drawn design of this suggested construction is included in this thesis.
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