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Inverzní analýza spolehlivosti předpjatého mostu / Inverse reliability analysis of prestressed bridgeLipowczan, Martin January 2018 (has links)
The proposed diploma thesis deals with the application of methodology and tools of inverse analysis for design of selected structural parameters using a fully probabilistic analysis to determine the level of its reliability. The method based on artificial neural networks is used to approximate the inverse function. The inverse analysis was carried out in two ways that differs in the method of obtaining reliability indicators. The structure analyzed in this work was an existing bridge. The year of construction is estimated approximately between the years 1955 to 1960. The bridge is located close to the Uherský Ostroh. It is a one-piece concrete slab made of MPD3 and MPD4 girders post-tensioned by tendons. Based on the 2006 and 2007 diagnostic surveys, laboratory tests, normative regulations and recommendations and, last but not least, sensitivity analyses, an inverse design of selected design parameters was performed for required limit states. Various load levels, different alternatives of design parameters and different neural network structures were studied.
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Diagnostika vybrané mostní konstrukce / Diagnostics of selected bridge structureJedlička, Lukáš January 2020 (has links)
This thesis deals with building survey of bridge register number 43-011 located near Česká. The part of thesis is literary reaserch dealing with system of management and cotrol of road bridges, precast bridge contructions made with DS-C type girgers and about general diagnostical methods. The practical section contains of in situ diagnostical survey and bridge inspection, laboratory evaluation and comparision, load bearing capacity calculation and suggestion of potencional technical precautions.
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Železobetonová konstrukce bytového domu / Reinforced concrete load-bearing constructionIlčík, David January 2016 (has links)
The diploma thesis is aimed for design and assessment main load bearing elements of a apart-ment building on the ultimate and serviceability limit state. Assessed parts of construction are reinforced concrete slab over the second floor, column and shear wall in the first floor, stairway slab and foundation pad. The elements are assessed in a structural design report according valid standard. There is created drawings. Internal forces are calculated using software Scia Engineer, where is modeled and loaded the construction.
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Diagnostika železobetonových konstrukcí / Diagnostics of reinforced concrete structuresNápravník, Petr January 2022 (has links)
This thesis deals with the structural-technical survey of beam bridge no. 204c - M1, located in Bystřice pod Hostýnem. The theoretical part of the thesis is devoted to general characteristics of bridges, load capacity of bridges, beam bridges, concrete reinforcement, concrete, diagnosis of reinforced concrete structures, and laboratory evaluation. The practical part deals with carrying out a structural-technical survey on the bridge mentioned above, its evaluation and assessment, recalculation of the load capacity, and design of the necessary rehabilitation to maintain the functionality of the bridge.
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Entwicklung eines Versuchsstandes zur zweiaxialen Beanspruchung von textilbewehrtem BetonMichler, Le 10 December 2009 (has links) (PDF)
Im Rahmen der vorliegenden Arbeit wird das Versuchskonzept für zweiaxiale Zug-Zug-Versuche an textilbewehrten Betonscheiben behandelt. Diese Arbeit soll einen Beitrag leisten, die Kenntnisse aus
dem Maschinenbau, der Mechanik in den Bereich der Bauingenieure und Baustoffe umzusetzen, um alle Effekte, die vom Versuchstand verursacht werden, öffentlich zu machen. Es ist ein Versuchskonzept zu erarbeiten, wie ein experimenteller Zug-Zug-Versuch optimal zu gestalten ist, um das Tragverhalten des textilbewehrten Betons genau zu ermitteln. Die Arbeit ist hauptsächlich in zwei Teile gegliedert.
Der erster Teil befasst sich mit dem Thema „Versuchsvorbereitung“. Es beinhaltet folgende Hauptpunkte:
• Der erste Punkt beschäftigt sich mit der Auswertung durchgeführter Versuche und deren Versuchsaufbauten. Hier werden Aspekte von der konstruktiven Auslegung der Rahmen bis zur Steuerung der Prüfmaschine behandelt. Es wird diskutiert, welche Effekte auf das
Versuchsergebnis vom gewählten Hydrauliksystem bzw. von den Hydraulikzylinder und der Steuerung des Öldrucks ausgehen können.
• Im zweiten Punkt wird eine Finite–Element–Simulationen durchgeführt, um die zweiaxialen Zug-Zug-Versuchskörper zu konzipieren. Mit Hilfe von einem Finite–Element– Programm, hier
ATENA, wird die Probengeometrie mit den Randbedingungen des Versuchs nachgebildet und optimiert.
• Der dritte Punkt beschäftigt sich mit dem Thema „Lasteinleitung“. Ein Konzept für die Verbindung und Kraftübertragung von Stahlplatten (Stahllasche) zur Lasteinleitung in „Beton“ soll entwickelt werden.
• Der vierte Punkt beschreibt die gewählte Messmethode der Versuchsdurchführung, und wertet deren Potenzial und Möglichkeiten .
Der zweiter Teil der vorliegenden Arbeit beschreibt detailliert die fünf durchgeführten zweiaxialen Zug–Zug–Versuche an mit AR-Glas textilbewehrten Betonscheiben. Die textilbewehrten Betonscheiben werden am Rahmen der zweiaxialen Prüfmaschine eingehängt und zweiaxial mit jeweils konstantem Verhältnis der Beanspruchung in Zug–Zug Richtung belastet, um den Versuchstand zu erproben und auszutesten. Die Gedanken, Ergänzungen und Erkenntnisse der
Autorin im Zusammenhang mit dem textilbewehrten Beton und die hier auftretenden Effekte werden auch in diesem Kapitel behandelt.
Das Schlusskapitel der Arbeit beinhaltet die Zusammenfassung und den weiteren Ausblick. Aus diesem Anlass werden die wissenschaftlichen Erkenntnisse der vorliegenden Arbeit zusammengefasst. / This doctoral thesis pertains to the conception for Bi–axial Tension–Tension Tests of thin textile reinforced concrete plates. This dissertation contributes to the application of mechanical engineering
knowledge into the specific area of Material–Construction Engineering; all results obtained from experimental conditions will be released to the public. The conception of this testing regime is presented, as well as the manner in which an experimental Tension–Tension Test can optimally ascertain and accurately predict and describe load-bearing behaviour of textile reinforced concrete (TRC). This thesis is generally subdivided into two parts –“Test Preparation” and the detail of Bi-axial
Tension-Tension testing on AR-Glass TRC plates. The “Test Preparation” component of this document includes the following four principal points.
The first point is concerned with the assembly of testing equipment. Problems stemming from framework or lack of control over the testing machine are examined here. Negative effects on test results induced by the Hydraulic cylinder and related oil pressure are investigated and complemented in this section. The second point focuses on the numerical simulation used in order to determine the Bi–axial Tension–Tension Test samples. The specimen geometry given the testing boundary conditions was copied and optimized by means of a Finite–Element–Program (ATENA).
The third point is concerned with the notion of “load application”. It was necessary to develop a premise for the loading transmission and connection between steel plates (steel mounting plates) and concrete cogs.
The final point takes into account the methods used for measuring the Bi–axial Tension–Tension–test of this work.
The second component present in this thesis describes in detail the five Bi–axial Tension–Tension–Tests conducted on AR–Glass TRC plates utilized to prove and ensure the accuracy of the experimental equipment. The TRC plate was built on frame of the bi-axial testing machine and received tensile loading in both directions. This loading relationship was held constant in both directions during the test.
Furthermore, the author presents her own thoughts, as well as supplemental commentary, associated with textile reinforced concrete and the resulting experimental outcomes.
The last chapter closes this doctoral thesis and includes the abstract of and further prospects for this study. All scientific cognitions are summarised in this chapter.
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Nosná železobetonová konstrukce objektu administrativní budovy / Load bearing RC structure of office buildingFerencz, Balázs January 2014 (has links)
The Master’s thesis is focused on the analysis and design of selected members of load-bearing structure of an administration building according to the ultimate limit states (ULS) and seviceability limit states (SLS). The calculation and the analysis was supported by design software SCIA ENGINEER 2012. Structural analysis deals with the design of the reinforced concrete (RC) flat slab above the 4rd strorey which is particularly supported by RC columns and particularly lies on RC walls. Furthermore, the Master’s thesis contains analysis of some selected columns of last three storeys, column of lowest storey, construction of stairway between 4rd and 5th storeys. The work beside this deals with the calculation and design of foundation of the object. The rest parts of the load-bearing structure are not solved in the Master’s thesis.
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Návrh předpjaté nádrže / Design of reinforced tankŠtramberský, Martin January 2014 (has links)
The matter of this diploma thesis is a static storage tank for petroleum substances, the study of a solution for appropriate shape of shell and its effort to dihedral for roofing, and the study of effect of the storage of inner roofs walls of the tank to the size of the internal forces. The internal walls are carried out by the method of finite elements in the engineering program Scia Engineering 2013 and on the basis of it, designing of the framing sections of the tank. There is a calculation part of the lower horizontal bias wreaths of the shell and internal supporting wall. All the components are assessed on the 1st limit state of the load-bearing capacity and the 2nd limit state of the application (emergence cracks, limiting voltage in the concrete and a prestressing steel). The existing external wall is assessed only on the marginal status load of carrying capacity. The part of diploma thesis is also drawing documentation, accompanying report and technical report. The goal of the diploma thesis was to design the tank without an occurrence of the cracks in the concrete so as the vertical wall was prestressing only in the horizontal direction and the optimal proposal roof tanks as an addition.
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Konstrukce sila na cukr / Sugar storage tankKotík, Libor January 2015 (has links)
The matter of this thesis is static design and examination of prestressed storage tank to 50000 tons of sugar. Computational model of the steel roof structure is processed and its effect on the silos. Loads is provided of sugar. Optimal design is performed and assessment ultimate and serviceability limit state reinforced concrete and prestressing horizontal silo wall including local load. Next, it is performed the design of a reinforced concrete of the plane bed and column and assessment at the ultimate limit state. The thesis is also drawing documentation, technical report and visualization of construction process. The aim of this work is to the design of the main components based on the required storage capacity tank, mechanical properties of the stored material and technical amenities.
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Entwicklung eines Versuchsstandes zur zweiaxialen Beanspruchung von textilbewehrtem BetonMichler, Le 20 February 2009 (has links)
Im Rahmen der vorliegenden Arbeit wird das Versuchskonzept für zweiaxiale Zug-Zug-Versuche an textilbewehrten Betonscheiben behandelt. Diese Arbeit soll einen Beitrag leisten, die Kenntnisse aus
dem Maschinenbau, der Mechanik in den Bereich der Bauingenieure und Baustoffe umzusetzen, um alle Effekte, die vom Versuchstand verursacht werden, öffentlich zu machen. Es ist ein Versuchskonzept zu erarbeiten, wie ein experimenteller Zug-Zug-Versuch optimal zu gestalten ist, um das Tragverhalten des textilbewehrten Betons genau zu ermitteln. Die Arbeit ist hauptsächlich in zwei Teile gegliedert.
Der erster Teil befasst sich mit dem Thema „Versuchsvorbereitung“. Es beinhaltet folgende Hauptpunkte:
• Der erste Punkt beschäftigt sich mit der Auswertung durchgeführter Versuche und deren Versuchsaufbauten. Hier werden Aspekte von der konstruktiven Auslegung der Rahmen bis zur Steuerung der Prüfmaschine behandelt. Es wird diskutiert, welche Effekte auf das
Versuchsergebnis vom gewählten Hydrauliksystem bzw. von den Hydraulikzylinder und der Steuerung des Öldrucks ausgehen können.
• Im zweiten Punkt wird eine Finite–Element–Simulationen durchgeführt, um die zweiaxialen Zug-Zug-Versuchskörper zu konzipieren. Mit Hilfe von einem Finite–Element– Programm, hier
ATENA, wird die Probengeometrie mit den Randbedingungen des Versuchs nachgebildet und optimiert.
• Der dritte Punkt beschäftigt sich mit dem Thema „Lasteinleitung“. Ein Konzept für die Verbindung und Kraftübertragung von Stahlplatten (Stahllasche) zur Lasteinleitung in „Beton“ soll entwickelt werden.
• Der vierte Punkt beschreibt die gewählte Messmethode der Versuchsdurchführung, und wertet deren Potenzial und Möglichkeiten .
Der zweiter Teil der vorliegenden Arbeit beschreibt detailliert die fünf durchgeführten zweiaxialen Zug–Zug–Versuche an mit AR-Glas textilbewehrten Betonscheiben. Die textilbewehrten Betonscheiben werden am Rahmen der zweiaxialen Prüfmaschine eingehängt und zweiaxial mit jeweils konstantem Verhältnis der Beanspruchung in Zug–Zug Richtung belastet, um den Versuchstand zu erproben und auszutesten. Die Gedanken, Ergänzungen und Erkenntnisse der
Autorin im Zusammenhang mit dem textilbewehrten Beton und die hier auftretenden Effekte werden auch in diesem Kapitel behandelt.
Das Schlusskapitel der Arbeit beinhaltet die Zusammenfassung und den weiteren Ausblick. Aus diesem Anlass werden die wissenschaftlichen Erkenntnisse der vorliegenden Arbeit zusammengefasst. / This doctoral thesis pertains to the conception for Bi–axial Tension–Tension Tests of thin textile reinforced concrete plates. This dissertation contributes to the application of mechanical engineering
knowledge into the specific area of Material–Construction Engineering; all results obtained from experimental conditions will be released to the public. The conception of this testing regime is presented, as well as the manner in which an experimental Tension–Tension Test can optimally ascertain and accurately predict and describe load-bearing behaviour of textile reinforced concrete (TRC). This thesis is generally subdivided into two parts –“Test Preparation” and the detail of Bi-axial
Tension-Tension testing on AR-Glass TRC plates. The “Test Preparation” component of this document includes the following four principal points.
The first point is concerned with the assembly of testing equipment. Problems stemming from framework or lack of control over the testing machine are examined here. Negative effects on test results induced by the Hydraulic cylinder and related oil pressure are investigated and complemented in this section. The second point focuses on the numerical simulation used in order to determine the Bi–axial Tension–Tension Test samples. The specimen geometry given the testing boundary conditions was copied and optimized by means of a Finite–Element–Program (ATENA).
The third point is concerned with the notion of “load application”. It was necessary to develop a premise for the loading transmission and connection between steel plates (steel mounting plates) and concrete cogs.
The final point takes into account the methods used for measuring the Bi–axial Tension–Tension–test of this work.
The second component present in this thesis describes in detail the five Bi–axial Tension–Tension–Tests conducted on AR–Glass TRC plates utilized to prove and ensure the accuracy of the experimental equipment. The TRC plate was built on frame of the bi-axial testing machine and received tensile loading in both directions. This loading relationship was held constant in both directions during the test.
Furthermore, the author presents her own thoughts, as well as supplemental commentary, associated with textile reinforced concrete and the resulting experimental outcomes.
The last chapter closes this doctoral thesis and includes the abstract of and further prospects for this study. All scientific cognitions are summarised in this chapter.
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Navrhování konstrukcí s FRP výztuží / Design of structures with FRP reinforcementMatušíková, Anna January 2012 (has links)
This diploma thesis presents available FRP software for calculating load bearing capacity of the structures reinforced with FRP and compares them between each other. Furthermore theory and algorithm of my own software is presented here. Load bearing capacity of structures which are reinforced with non-metallic reinforcement and loaded by combination of normal force and bending moment can be solved by my programme. Effects of high temperatures on the concrete structures can be included in the calculation. In the second part of the thesis is calculated load-bearing capacity and deflection of the real beam reinforced with FRP reinforcement and load-bearing capacity of member with FRP reinforcement with effect of elevated temperature. This has been done using my software. Comparison of results from hand calculation and laboratory load-bearing testing is done at the end. This laboratory testing was accomplished by Institute of Concrete and Mansory Structures at our faculty.
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