The main goal of this diploma thesis is a design and verification of a steel footbridge crossing the river Dřevnice in Zlín. As the basic material steel S355 and for selected members steel S235 was chosen. There are two structural variants designed in the introductory part of the thesis. These variants are then compared and in the next part only selected, more favourable variant, is addressed. The selected variant is a truss footbridge with a bridge deck at the bottom and curved top chords. The bridge deck consists of floor beams and steel plate with longitudinal stiffeners. The span of the structure is 35.0 m, the width of the footbridge is 3.9 m and its height in the middle of the span is 4.2 m.

This Master´s thesis describes the design and assessment of steel structure of a hangar located in Znojmo. The supporting structure of a hangar is 37,475 m span, 48 m lenght, clear hight at the highest point is 15,5 m. Main construction material is steel, grade S355J2. The supporting structure consist of a truss girders. The distance of each cross link sis 4 m. There is prepared statics calculation of the main load-bearing parts of the structure, including joints and details. The valid standards CSN EN were used in processing of this dissertation.

The thesis deals with the design of the drilling rig tower. The goal of the diploma thesis, which is created in cooperation with MND, a.s., is to design a steel structure. Then perform a load analysis. Further, to perform a structural analysis using the Finite Element Method and to optimize the design.

This diploma thesis deals with design of a robotized workplace for welding truss structures. First, the target construction that the work focuses on is shown. Then the functions of the entire workplace are designed, including the procedures for activities and the gross displacement of the used components and their layout. The next chapter itemize specific robots and components. This, along with the solution of safety and ergonomics, makes the layout of the entire workplace more precise. Everything is completed by creating a simulation model in Siemens Tecnomatix Process Simulate, where all the welding operations are simulated.

The aim of the diploma thesis is design and assessment of steel structure of greenhouse in botanical garden in Ostrava. The building is designed as a hexagon with a diameter 50 m, the highest point of the construction is 32,907 m. Whole structure will be made of hollow round tubes of different profiles. The support system consist of columns and truss girders. The bracing of the structure is in three levels. Main construction material is steel S355 J0+AR. The covering of the roofs and walls is made of glass panels ISOTHERM.

The title of my diploma thesis is Mountain Pension with Restaurant and is written in English. My task was to create a mountain guesthouse that would serve as a background for other cottages in the neighborhood. I designed a wellness center as well as a restaurant and accomodation in the building. It is a two-storey with basement. The ground floor is reserved for the restaurant, the basement for wellness and the attic is designed for temporary accomodation. From a technical point of view, the construction system consists of a brick walls and monolithic ceilings. The main vertical supporting elements are ceramic walls and the main horizontal elements are one-way reinforced slabs which are reinforced using reinforced concrete core. The roof is made of wooden trusses.

The aim the diploma thesis is the design and the assessment of the main structure of the shopping centre in the Hradec Králové. The shape of the construction is the cylindrical hall with dimensions 120 x 32 m. The structure is formed by lattice trusses, solid purlins, columns and composite construction. The model of the structure and some calculations were provided by the program Dlubal RFEM.

The scope of the Master's thesis is the design, evaluation and the comparison of two variations of the solution for steel load-bearing structure which is a part of a gokart areal with adjacent refreshments. The construction is composed of three structurally dependent objects. For the first construction object, there were solved the variants with a truss and a frame structure. The construction has an irregular plan. The object plan dimensions are 75 x 45 m. The built up area covers 2450 m2. The construction reaches the height of 13,2 m. The thesis contains the design of dimensions, structural analysis and the evaluation of structural members. The calculation of internal forces was made by SCIA Engineer 16.1.62 software. Attached to the thesis is the drawing documentation.

Il ne subsiste aucun vestige direct des charpentes grecques et, bien souvent, l’état de conservation des blocs constitutifs des parties hautes des édifices est lacunaire. Ce constat conduit souvent à la reproduction du cadre interprétatif des charpentes antiques établi à la fin du XIXe siècle, opposant charpente grecque à empilement d’une part, et charpente romaine à ferme d’autre part. L’enjeu de cette thèse consiste à reconsidérer cette opposition binaire entre deux types de charpente. Afin de pallier le manque de vestiges archéologiques, d’autres pistes sont explorées. Les techniques utilisées dans la réalisation des charpentes ne sont pas toutes spécifiques à cet artisanat. Aussi, élargir le champ d’investigation à des activités connexes relevant de l’artisanat du bois comme, par exemple, la construction navale, permet de définir les contours d’un environnement technique dans lequel s’inscrit la charpente. Plusieurs traits caractéristiques de cet environnement technique ont été dégagés, parmi lesquels la maîtrise d’assemblages permettant la reprise d’efforts de traction, le recours à la triangulation des structures et un grand savoir-faire dans la taille des pièces de bois. À la suite de ce réexamen des connaissances pratiques et techniques des charpentiers grecs, une série d’études de cas est proposée, incluant l’arsenal du Pirée, les temples doriques de Sicile, le Parthénon, ainsi que le temple en calcaire et le temple d’Apollon du IVe siècle à Delphes. Les comptes de construction de ce dernier édifice, très riche concernant le matériau bois, font par ailleurs l’objet d’une analyse systématique. Enfin, sur le plan méthodologique, cette thèse aborde la question de la restitution des parties hautes. Le recours à la modélisation 3d et au calcul de structure permet de formuler des hypothèses neuves et d’en évaluer la pertinence dans un mouvement de va-et-vient entre les vestiges, les techniques et le comportement mécanique des charpentes. Les principaux résultats de cette thèse concernent la caractérisation de l’environnement technique dans lequel évoluent les charpentiers grecs des VIe et Ve siècle et conduisent à considérer comme pertinente l’hypothèse de l’existence de charpentes triangulées. / There are no direct remains of Greek roof structures and, in many cases, the state of conservation of the constituent blocks of the upper parts is incomplete. This observation often leads to the reproduction of the interpretative framework of antique roof frameworks established at the end of the 19th century, opposing Greek prop-and-lintel on the one hand, and Roman truss on the other. The challenge of this thesis is to reconsider this binary opposition between two types of framework. In order to compensate for the lack of archaeological remains, other avenues are being explored. The techniques used in the construction of the roof structures are not all specific to this craft. Also, extending the scope of investigation to related activities in the field of woodworking such as, for example, shipbuilding, makes it possible to define the contours of a technical environment in which the framework is embedded. Several characteristics of this technical environment were identified, including the use of assemblages that allow the recovery of tensile forces, the use of triangulation of structures and a great deal of know-how in the preparation of wooden beams. Following this review of the practical and technical knowledge of Greek carpenters, a series of case studies are proposed, including the Piraeus Arsenal, the Doric temples of Sicily, the Parthenon, as well as the so-called “limestone temple” and the fourth century BC Apollo templein Delphi. The construction accounts of this last building, which is very rich in wood materials, are also systematically analysed. Finally, from a methodological point of view, this thesis addresses the question of the restitution of the upper parts. The use of 3d modelling and structural calculation makes it possible to formulate new hypotheses and evaluate their relevance in a back and forth movement between the remains, techniques and the mechanical behaviour of the structures. The main results of this PhD dissertation concern the characterization of the technical environment in which Greek carpenters of the sixth and fifth centuries BC evolve and lead to consider as relevant the hypothesis of the existence of triangulated roof structures.

The following project work studies trusses and roof structures and their performance during a fire in terms of rules and requirements that needs to be considered. Determination of how resistant truss or roof construction is still heavily dependent on the subjective experience and assessment of professional. It means that nowadays stages of this defining of fire resistance of roof/truss are still in need of clarification. The load combination for accidental load is compared to the ultimate limit state during the fire and it was showed that the loads were lower. The strength of timber during the fire was calculated by the two methods. Calculations by both methods revealed that timber used in construction can withstand fire by 0 minutes. However, fire resistance of the wooden materials can be improved by different techniques that were described in this study. The biggest improvement of fire resistance can be achieved with the help of covering - gypsum boards and rockwool, or even with wooden covering if lower protection is needed. As well, many fire-retardant treatments were developed that can improve wood performance during fire by slowing down the spread of fire, by limiting the building up of smoke and other volatiles. Instead of fire-retardant treatment fire retardant paints can be used too. This study showed stages of establishing fire requirements of wooden roof structures by two examples. In this study, two calculations were performed for two different house types, a family house, and an apartment building, to compare the difference between normal load dimensioning and fire load dimensioning. In the fire load dimensioning method, two different times were considered - R30 and R60 load capacity. When calculating the normal load dimensioning, it has been shown that an unprotected truss has no fire resistance, and that the truss has a fire resistance, with respect to bearing capacity, which corresponds to R0, which means that it must be protected for the required time. / Samhällsbyggnad / Husbyggnad / Konstruktion