Přístupnostní navigace
E-application
Search Search Close
Branch Details
Original title in Czech: Konstrukce a dopravní stavbyFASTAbbreviation: KDSAcad. year: 2015/2016
Programme: Civil Engineering
Length of Study: 4 years
Accredited from: 25.7.2007Accredited until: 31.12.2020
Profile
PhD study of Constructions and Traffic Structures study branch is focused on a scientific training, methodology of research work and research development in the fields of structural theory, reliability and failure mechanism of structures. There are several study directions - structural mechanics, concrete and masonry structures, steel, timber and composite structures, geotechnics, railway structures, roads structures, experimental work and building testing. Scientific preparation is based on knowledge of theoretical disciplines of natural sciences base together with theoretical and scientific disciplines of water management orientation. Graduate of PhD study is ready to work in research and development, using creative approach for problems solving of progressive structures including traffic structures. Continuous active scientific and pedagogical activity is a good condition for eventual qualification of graduates as academic employees at Universities.
Guarantor
prof. Ing. Marcela Karmazínová, CSc.
Issued topics of Doctoral Study Program
Definition of optimisation model of a structure for: 1. design of a member, 2. strengthening of existing member, 3. design and strengthening of a structure. Calculation variant: stochastic, deterministic (according to the application class of the tasks), type of the restraining conditions, classes the target functions.
Tutor: Štěpánek Petr, prof. RNDr. Ing., CSc., dr. h. c.
The topic is focused on the design of the strengthening of the beam- and slab-bridges. The strengthening will be made using free cables leading in substituted cable ducts. A part of the topic will be focused on the analysis of long term measured bridge after strengthening.
Tutor: Klusáček Ladislav, doc. Ing., CSc.
The subject of the dissertation thesis is to update the selected elements from the Czech standards ČSN 73 6101, ČSN 73 6102 a ČSN 73 6110 following the revision of these standards.
Tutor: Radimský Michal, Ing., Ph.D.
To assess the influence of the interfacial transition zone (ITZ) between matrix and aggregate to toughening mechanisms of advanced building composites. Fracture processes connected with crack deflection, trapping, pinning and aggregates rupture will be studied. Properties of ITZ in concrete will be measured and used as input data for numerical simulations. To investigate the influence of geometry and aggregate-matrix materials’ mismatch on damage initiation and propagation in the composites.
Tutor: Keršner Zbyněk, prof. Ing., CSc.
Civil engineering materials consist from matrix and aggregates, for cheaper production and processing of ceramic waste, the part of aggregates can be replaced by ceramic waste. Description of fracture mechanical behaviour and preparation of proper numerical models base on linear or non-linear fracture mechanics will be central topic of Ph.D. thesis.
Tutor: Seitl Stanislav, doc. Ing., Ph.D.
Majority of structural materials can be categorized, from the material failure point of view, as quasi-brittle or ductile. They are characteristic by formation and propagation of sizeable nonlinear zone in front of the tip of a defect that causes violation of their integrity. Capturing the nonlinear zone influence is the key to significant improvement in accuracy of the failure description. Nonlinear zone characterization will be conducted via advanced experiments (AE, X-ray) and simulations.
Tutor: Veselý Václav, doc. Ing., Ph.D.
Currently, you can often meet with examples of negative geotechnical phenomena associated with the mining of brown coal, as unexpected landslides, problems in areas of old dumps etc. Original and filled slopes of mine sites should be designed so as to ensure their long-term stability. The theme of the doctoral thesis is the stability analysis of mining slopes in Podkrušnohorská brown coal basin.
Tutor: Glisníková Věra, Ing., CSc.
Pre-stressed reinforced concrete railway sleepers are among the most massively produced and used structural members. Their failure under different loadings concerning both boundary conditions (laboratory tests under three-point bending - quality-controlling tests, when placed in the railway superstructure) and type of the loading (static, dynamics, fatigue). Attention will be paid to detailed modelling of failure in selected parts of the sleeper. The work will contain also related experiments.
Application of high-performance concrete is the modern way for more cost-effective concrete structures. Actually, the high (improved) performance can be besides an ordinary strength for example shrinkage, creep, durability of concrete etc. The student should cope with conception of such concretes and techniques of observation of their structural parameters and conception of their application in today structures.
Tutor: Terzijski Ivailo, prof. Ing., CSc.
Topic deals with the study of problems of concrete cover layers durability and contribute to development of the knowledge in the eld of durability assessment and evaluation. The first output is to generate the relationships between quality classications determined by non-standardized and standardized testing methods. The second output of this project is to develop a recommendation for the uniform classication of the concrete cover layers determined by dierent testing method.
Tutor: Vymazal Tomáš, doc. Ing., Ph.D.
The work develops the issues in the Czech Republic eg published in the journal TKS Beton, 6/2013 with the name of the proposed focus on life: the implementation of the principles and standards of ISO 13823 General principles on the design of structures for durability.
Appropriate structural design from advanced building materials is conditioned by the ability of prediction of real response obtained by robust computational tools with implementation of proper failure models based on non-linear fracture mechanics.
The method D & B (Drill and Blast). Design and realization. Use in Europe and in the Czech Republic. Problems and solutions. Classification of hard rocks. Characteristics of hard rocks. Blasting works.
Tutor: Horák Vladislav, doc. Ing., CSc.
The theme is focused on designing of railway stations regarding current operating needs, including involvement in integrated transport systems and increased demands for safety, traffic and interoperability of the railway system.
Tutor: Svoboda Richard, Ing., Ph.D.
The primary goal is to estimate the relationship of dependency compressive strength and modulus on the porosity of the selected structural concrete through verification and discussions already published mathematical models for estimating the relationship of dependency compressive strength and modulus on the porosity of the concrete.
Knowledge about behaviour of building materials based structures through the effective application of methods of complex determining of physical-mechanical and performance qualities to describe fatigue and fracture characteristics
The topic is focused on solving inverse problems and optimization for the design and reliability and lifetime assessment of structures. For solution stochastic and soft-computing methods will be utilized. Main attention will be focused on the methods and procedures applicable in combination with a non-linear FEM analyses of bridge structures.
Tutor: Lehký David, prof. Ing., Ph.D.
The theme of the work is laboratory testing of soils improved by binders (cement, lime) to determine the mechanical properties depending on the time of ripening, the amount of binder.
Tutor: Miča Lumír, doc. Ing., Ph.D.
The theme is focused on study of mechanics of railway structures. The theme includes static and dynamic analyses of track with special aim in speed increasing, modern elements of track and interoperability of ralway infrastructure.
Tutor: Plášek Otto, doc. Ing., Ph.D.
Operation and calibration of a modern two-channel ultrasonic pulse apparatus. Excitation with ultrasonic probes and oscilloscopic evaluation with the possibility of checking the process. Testing the suitability of other excitation possibilities enabling two-channel imaging. Refinement of results in problematic cases of measurement. Possibility of increasing the scope of the method. Extending the application of the method by separating the measurement base from the excitation point.
Tutor: Stehlík Michal, doc. Ing., Ph.D.
Fracture of quasi-brittle materials is the main scope of the research. Program support for quick and good evaluation non-standard fracture mechanical test performed on various geometry specimens.
Research of Crumb rubber modified bitumens. Evaluation of characteristics of bitumens and mixtures. Evaluation of production technologies of modified bitumens and mixtures. Evaluation of trafficked road constructions. System of technical recommendation for using of Crumb rubber modified bitumens in road constructions.
Tutor: Kudrna Jan, prof. Ing., CSc.
The main goal of the dissertation is to analyze permeability and diffussion characteristics of fibre concretes with selected types and doses of fibres. The testing will be carried out on both loaded and unloaded samples with cracks made by bend loadind. The main output will be the proposal of formulations and estimation of durability of different types of fibre concretes especially loaded to achieve higher durability of reinforced concrete constructions.
Analysis of driven underground structures behaviour - influence of selected factors. It is supposed to application of mathematical modelling for analysis these factors.
Tutor: Boštík Jiří, Ing., Ph.D.
The reliability of steel structures will be studied using stochastic computing models focused on sensitivity, statistical and probability analysis. Stochastic models will be created with the knowledge of numerical simulation methods and FEM nonlinear models, including knowledge of structural mechanics, theory of elasticity and plasticity, and other related disciplines necessary for stochastic modelling and computing.
Tutor: Kala Zdeněk, prof. Ing., Ph.D.
Strips, fabrics; contact of glued joints; strengthening in shear/flexure; NSMR (near surface mounted reinforcement), prestressed and non-prestressed variant; strengthening by external prestressing; strengthening of compressive stressed members using wrapping.
The design and realization issue of building structures additional structural securing by a stainless steel helical reinforcement. Processing of diagnostic works methodology and evaluation of an existing structure in order to optimize strengthening structural calculations. Proposal of applied system control tests methodology. Efficiency assessment of methodical processes of experimental evaluation methods of applied technology.
Tutor: Schmid Pavel, doc. Ing., Ph.D.
The theme is focused on finding appropriate structures urban tracks with regard to improving traffic load and reducing the negative impacts of urban tracks to the track vicinity, reduce the cost of construction and maintenance work and traffic restriction.
Monitoring changes of the historic brickwork properties by using traditional and non-traditional methods can contribute to the understanding of historical development in this field.
Tutor: Pazdera Luboš, prof. Ing., CSc.
The theme is focused on research of technology procedures and corrective maintenance that lead to minimization of the traffic restriction, energy consumption, environmental impact and life cycle costs.
Internal erosion of soils is among the frequent failure modes related to hydro-technical structures. Limit states of filtration stability are listed in the EC 7, part 1. Neither the limit state conditions for internal erosion failure modes nor reliability coefficients are summarised in any other document. Even abroad, these issues are still open. The doctoral thesis aims to formulate the methods for the assessment of water structures and their sub-bases for the filtration stability limit state including strain-stress analyses.
The addition of different types of fibres to various formulations of concretes stops the creation of microcracks in hydration time, and later, under loading, improves ductility behaviour of concrete after the creation of bend crack. The innovated method of acoustic emission can be used to study the dependence of crack creation – decrease of loadability – deformation of loaded fibre concretes of different formulations exposed in advance to the action of limiting environmental conditions.
The theme is focused on study of dynamic behaviour of railway lines. The theme includes railway superstructure and railway subbase. Topic involves experiment and simulation techniques. The tema also includes application of a suitable modern mathematical apparatus for the evaluation of the railway lines parameters including of artificial intelligence methods using.
Tutor: Smutný Jaroslav, prof. Ing., Dr.
Fracture of quasi-brittle materials is the main scope of the research. Crack propagation is studied from the perspective of current approaches to fracture modelling - analytical models and numerical simulations - and experiments. Attention is paid to the role of nonlinear zone evolving in front of the propagating crack in the fracture description. Effects of size, geometry and free boundaries of the body are studied in context with the existence of this zone.
Problems concerning the reliability, modelling, optimalisation and verification of the behaviour of construction members, elements and structural systems combined from concrete and steel are solved. Emphasis is placed on the assessment of real geometrical, material and construction characteristics.
Tutor: Bajer Miroslav, prof. Ing., CSc.
Dissertation thesis will be focused on studying the effect of high temperatures caused by fire on physical and mechanical and fracture properties of building materials. Assume the particular laboratory tests using destructive, non-destructive and semi-destructive methods carried out on samples. The basic goal is to design efficient diagnostic and laboratory methods used for the evaluation of the current building material and structural condition of structures damaged by fire.
Tutor: Daněk Petr, doc. Ing., Ph.D.
Durability is one of the most important property of civil engineering and close to this branch structural members. The same is important for used materials. It is very actual to find effective and economical solutions of the used material composition. Very important condition for reaching of the mentioned task is to find simple but effective technique for reliable durability tests.
The Aim of the study will be behaviour monitoring of a type of samples at mechanical loading. One of Non-Destructive Testing method is suitable for monitoring the samples quality during its loading. The PhD student will acquire knowledge about NDT.