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Ultimita
Jindra, Daniel ; Kala, Jiří (referee) ; Hradil, Petr (advisor)
Structural beam and shell models were assembled in ANSYS program package. Design loads are defined according to Euro codes. Nonlinear analysis of structure has been established. Ultimate limit state of beams and cross sections were determined. Obtained results of ultimate limit state analysis were compared with Euro codes for design thin-walled steel structures.
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Dynamic analysis of bridges structures
Prokš, Tomáš ; Salajka, Vlastislav (referee) ; Hradil, Petr (advisor)
The diploma thesis deals with dynamic analysis of cable-stayed steel pedestrian footbridge. The dynamic response of pedestrian-induced vibration was studied. The response of structure exeeded standard acceptance limit. Due to the effect of installed Tuned Mass Damper was studied. Motion equations of single and two degree of freedom model were solved in program MATLAB and the results were compared with numeric model in ANSYS.
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Solution of timber hall structures
Šigutová, Petra ; Hradil, Petr (referee) ; Zídek, Rostislav (advisor)
The subject of my thesis is a static analysis of a different trusses of a great span length. The preface is devoted to the trusses their creation of plane models of a girder with the extent of 18 metres. The questions of construction´s joints are mainly solid. The conclusion is dedicated to the creation of the girder and joints´ formation.
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Analysis of the steel structure of the bridge by FEM to the action of static load
Skorunka, Ondřej ; Hradil, Petr (referee) ; Salajka, Vlastislav (advisor)
The structures of bridges are one of the most demanding engineering structures. They fulfill an important social and economic role in the development of the given territory. From this perspective, it is necessary to pay close attention to the process of design, analysis, realization and service. This thesis deals with the static analysis of spatially curved and asymmetrical suspended foot bridge for pedestrians and cyclists. The first part is devoted to the analysis of structural deformation, while the second part is focused on the analysis of selected parts of the structure in terms of its stress.
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Wind loads of building structures
Štěrba, Martin ; Kala, Jiří (referee) ; Hradil, Petr (advisor)
The bachelor thesis deals with the analysis of the effects of wind load on building structures. In the context of the work is solved the numerical modeling of flow around the solid cylindrical bodies at high Reynolds numbers. To the simulations has been used computational software ANSYS CFX. The outputs of the work are the values of Strouhal numbers and the values of drag and lift coefficient depending on the Reynolds number.
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D - Areas Analysis using Strut and Tie models
Konárek, Lukáš ; Hradil, Petr (referee) ; Zídek, Rostislav (advisor)
The objective of bachelor thesis is the analysis of typical D-areas of reinforced concrete structures. The analysis is performed using methods replacement truss. In the beginning models replacement truss are used for analysis shear bending girder. It is also shown in the individual chapters specific D-areas using spare truss method. These particular truss models are solved by RFEM program operating on the principle of Finite Element Method.
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Verification of nonlinear material models
Prokš, Tomáš ; Němec, Ivan (referee) ; Hradil, Petr (advisor)
The bachelor thesis deals with verification of nonlinear material model of soil FHWA SOIL during shear test. The nonlinear problem was being solved by software LS-DYNA using explicit formulation of finite elements method. The values of horizontal displacements during the direct shear test were compared with the results listed by the developer of the material. The considerable difference in the results led to focusing on the settings of the material model and influence of application of load, geometry and type of finite elements on the monitoring values.
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Analysis of plastic bearability of plates
Rozsypalová, Veronika ; Hradil, Petr (referee) ; Němec, Ivan (advisor)
The subject of this thesis is analysis of the plastic bearability of plates. The first part is dedicated to a description of pertinent theories. It is primarily a theory of material nonlinearity and plasticity, including a description of plasticity models, which are commonly used in engineering analysis. Next is the hinted theory of geometric nonlinearity and discusses the key principles of limit plastic bearability of plates. This thesis includes ultimate strength calculations of plates of selected shapes, their solution by both, a manual calculation and using computational software. The obtained values are subsequently evaluated. The appendices contain the procedures for modelling in the computational programs RFEM and ANSYS.
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