Neste trabalho é realizado o estudo dos coeficientes parciais de segurança utilizados em normas de projeto estrutural. O trabalho é fundamentado na teoria de confiabilidade estrutural, que permite uma representação explícita das incertezas envolvidas em resistências e ações, e resulta em uma estimativa quantitativa da segurança estrutural: o índice de confiabilidade. O trabalho aborda uma metodologia de calibração de norma que permite obter o conjunto de coeficientes parciais de segurança que minimiza as variações dos índices de confiabilidade das mais diversas estruturas projetadas segundo uma norma de projeto, em relação ao índice de confiabilidade alvo utilizado na calibração. Uma calibração inicial é feita utilizando um índice de confiabilidade alvo igual a 3,0, mas diferentes índices de confiabilidade também são considerados. A análise é feita para elementos estruturais de aço. A calibração é feita para dois formatos de norma distintos. No formato das normas americanas (ANSI/AISC), um conjunto de coeficientes parciais de segurança é obtido para cada expressão de combinação de ações. No formato da norma Brasileira e Européia, um único conjunto de coeficientes parciais (e de coeficientes de combinação) é obtido, para uma única expressão de dimensionamento. Os coeficientes parciais de segurança obtidos para os dois formatos são comparados com os coeficientes utilizados atualmente na norma brasileira ABNT NBR8800:2008. Os índices de confiabilidade resultantes também são comparados, para as diferentes combinações de ações, em função da razão de proporcionalidade entre as diferentes ações. Os resultados obtidos mostram que os coeficientes parciais de segurança utilizados na norma brasileira ABNT NBR8800:2008 levam a uma variação significativa dos índices de confiabilidade. No trabalho, é obtido um conjunto de coeficientes que reduz esta variação, proporcionando maior uniformidade dos índices de confiabilidade. Estes resultados sugerem que uma revisão dos coeficientes parciais utilizados na norma brasileira ABNT NBR8800:2008 pode ser recomendável. Esta recomendação, no entanto, depende de um aprofundamento da investigação iniciada neste trabalho, uma vez que os resultados obtidos não refletem todas as situações de projeto cobertas por esta norma. / This study addresses the partial safety factors used in structural design codes. The study is based on the theory of structural reliability, which allows an explicit consideration of the uncertainties in material strengths and load actions, and results in a quantitative measure of structural safety: the reliability index. A calibration methodology is considered, which allows one to find a set of partial safety factors that minimizes the variations on reliability indexes, for all structures designed within a code, with respect to a pre-selected target reliability. An initial calibration is performed for a target reliability index 3,0, but other target reliabilities are also considered. The analysis is limited to steel structural members. The calibration is made for two distinct code formats. In the ANSI/AISC code format, a set of partial factors is obtained for each load combination expression. In the Brazilian and European code formats, one single set of partial (and load combination) factors is obtained, for a single load combination expression. Partial safety factors obtained for both code formats are compared with partial factors used in National Brazilian code ABNT NBR8800:2008. The resulting reliability indexes are also compared, for the distinct load combination expressions, in terms of the proportionality ratios between the distinct actions. Results obtained in the study show that the partial safety factors used in ABNT NBR8800:2008 lead to significant variation on reliability indexes. Another set of partial safety factors is obtained in the study, which provides greater uniformity of reliability indexes. These results suggest that a revision of partial safety factors adopted in ABNT NBR8800:2008 might be recommended. This recommendation, however, is dependent on a deepening of the investigation started in this study, which does not reflect all design situations covered by the design code.

The diploma thesis deals with an application of partial reliability coefficients of reliability in assessing the safety of water works. The reliability factors are the quantitative condition of the marginal equilibrium. A more detailed study of the methods of the marginal equilibrium method led to an assessment of the overall and local stability of the Vranov Dam. The baseline for the evaluation were the data provided by the Technical Surveillance (TBD) and available literature. The GeoStudio 2018 was used to calculate the loads on the Vranov waterworks. The model of the groundwater flow in the subsoil was calculated by the Seep/W module and the Sigma/W module was used to determine the local stresses. Subsequently, the selection of partial reliability coefficients and theirs subsequent application to the limit equilibrium conditions were performed. Stability assessments were complemented by calculations of safety factors. The results were compared with each other.

Main goal of thesis entitled "Landslide remediation design" is - based on acquired knowledge and submitted documents about the problematic of landslides - to determine the causes of the landslides on II. class road between villages Koryčany and Jestřabice and to propose optimal redevelopment.

The aim of this master’s thesis is a design of the footbridge that transfers separately pedestrian and bicycle traffic over the expressway and the local creek. Chosen footbridge, which were one of two possible designs, consists of a monolithic bridge deck suspended on the V-shaped pylon. Thesis contains a static calculation of the structure modeled in ANSYS software. Design and assessment are according to the current European standards

This thesis deals with the nonlinear analysis of stability loss of flue gas pipe. This pipe is a part of desulphurization line. The thesis describes the creating of a simplified FEM model. It also describes the setting of the boundary conditions of the model for few loading cases. These cases differ by preference for one of the load as dominant. There are proposed several variants of stiffening by light ring stiffener. The work is finished by comparing the resistance to the stability loss of the reinforced variants and unreinforced model of flue gas pipe.

Topic of the master’s thesis is design and assessment of steel construction of the industrial building used to glass sand treatment. The building has the top view dimensions 12,0 x 12,0 m and roof ridge height 15,6 m. Disposition if the individual elements was designed according to conditions of the technology and production process. The thesis focus on creating of computational model and assessment to ultimate and serviceability limit states of individual elements. Further thesis contains of design and optimisation of some joints.

Main purpose of the diploma thesis is to design a multi-span double-girder bridge which spans the valley of a river. The bridge spans main road of 1st class. Main superstructure of a bridge is made of prestressed concrete which is built span by span. Structure was designed according to limit states in construction stages as well as during the service. Everything was designed according to the latest European normatives. It contains static calculation and drawing documentation.

The final thesis is focused on design of the superstructure of a new concrete bridge in city Žďár nad Sázavou, Kraj Vysočina. The bridge should serve for passing roadway, cycle path and pavement across the river Sázava. The base for bridge design include the measured terrain. The static system is self-anchored system of arch, braces and prestressed semi-through deck. The bridge span is 74,02. Arch span is 57,00 m with high 12,00 m. Construction was assessed by the ultimate limit state and service limit state according to recent standards (Eurocode).

This work deals with statics and dynamics analysis of stayed cable bridge and design of supporting structure according to limit states. The work contains of static calculation, drawing documentation and visualization.

In the case of soil structures and/or subsoil of the water structures, filtration deformation can occur due to the effects of water seepage. One of the possible phenomena that can occur in water structures due to filtration deformation is external suffusion / heave, which ocure on the air side of the structure in the case of ascending external seepage, where soil particles are gradually subject to ascending seepage forces. The possibility of heave can be assessed using the method of partial factors, for which individual partial factors are needed, which are not specified in more detail in the literature. The aim of this work is to determine the partial reliability factor for failure due to heave based on the evaluation of laboratory experiments on uniform grain materials with non-uniformity number CU