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Measurement of deformation of bridges loading tests
Zlámal, Miroslav ; Láník, Jaromír (referee) ; Žítt, Petr (advisor)
The topic of this diploma thesis is an analysis of a process of deformation measure-ments performed during bridge structure load tests and their following evaluation. The aim of this thesis is to describe commonly used methods of measurement, their principles and difficulties, and to find ways of usage in modern methods. The main point of the thesis is to solve the problematic of suspension wire – to find through laboratory measurement suit-able alternatives to so far most commonly used steel wire. The first part of the thesis is focused on theoretical hypotheses for load testing of bridge structures and is based on the ČSN 73 6209 norm, including description of the measurement methods. The next part is focused on the evaluation of particular bridge load test and practical evaluation of the laboratory experiment.
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Evaluation of the current condition of the bridge structure
Urbánek, Filip ; Hrabová, Kristýna (referee) ; Láník, Jaromír (advisor)
The diploma thesis deals with the execution and evaluation of a structural and technical survey of a reinforced concrete bridge structure from 1923. The second objective of the thesis is to calculate the load-bearing capacity of the structure with regard to the results of the tests carried out. The theoretical part briefly describes the history of bridge construction, the methodology of bridge inspections and methods of diagnostic survey. In the practical part, in situ tests are carried out with subsequent laboratory evaluation and calculation of the necessary parameters. The geometric and material parameters of the structure were used as a basis for the creation of a structural model. The normal, exceptional and exclusive load capacities were recalculated and the necessary repairs and rehabilitation were proposed with regard to the observed condition of the bridge structure.
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Verification of actual physical-mechanical parameters of composite material
Jablonská, Markéta ; Žítt, Petr (referee) ; Láník, Jaromír (advisor)
Diploma thesis deals with composite materiál and it is dedicated to steel fiber concreat. The thesis focuses on verification of mechanical parameters of the steel fiber concrete. Especially on the compressive (tensile) strength at first cracking and the compressive strength in cracked state. Testing was conducted on concrete different tensile with 30 kg on m3 steel fibers KrampeHarex DE 50/1,0 N. The thesis is divided into theoretical and experimental part.
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Diagnostics of reinforced concrete structures
Nápravník, Petr ; Komárková, Tereza (referee) ; Láník, Jaromír (advisor)
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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Evaluation of defects and disturbances of an existing structures
Uher, Adam ; Láník, Jaromír (referee) ; Schmid, Pavel (advisor)
The bachelor thesis describes the most used methods of diagnostics of building structures, then it focuses on the use in diagnostics of as yet unused modern technologies, potentially replacing several activities in the work of diagnostics and other professions. The advantages of these technologies, specifically 3D scanning, are presented on a case study of the revitalization of an apartment building in Brno, Koliště 33. In the practical part of thesis is described the process of diagnosis of defects and failures of the object, including applied methods and findings. The output of the work is a proposal of measures and a set of recommendations.
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Load testing of ceiling structures
Tichý, Jan ; Láník, Jaromír (referee) ; Žítt, Petr (advisor)
The object of this bachelor`s work is the description of preparation process, implementation and evaluation of static load test in-situ, including measurement technologies and load methods. The aim of this work is to outline the development and to analzse the eazs of performin load test in-situ. A static load test of concrete iron steel-boarded floor in-situ will be mentioned as the particular example.
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Diagnosis of reinforced concrete buildings with the system of elevated ceilings
Čeřovský, Martin ; Láník, Jaromír (referee) ; Žítt, Petr (advisor)
This thesis is focused on the diagnostics of reinforced concrete frame structures with the used system of elevated ceilings. The first part of the thesis is devoted to the issue of the methods of design and construction of these objects. The following chapter describes selected methods leading to determination of the material characteristics and to the specification of the constructional system. In its conclusion, the thesis deals with the appropriate design of implementation of the preliminary and detailed exploration of the structures with the used system of elevated ceilings.
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Evaluation of the structural static condition of the existing structure
Svoboda, Štěpán ; Láník, Jaromír (referee) ; Schmid, Pavel (advisor)
This thesis focuses on the assessment of the structural-statical condition of a building affected by a fire. The purpose of the evaluation is to determine the extent of damage and explore possibilities for future use. The theoretical part introduces the issue of fires in various structures and examines the impact of fire on different types of materials and constructions. In the practical part, there is an own evaluation of the object, a static assessment, the results of the inspection and a summary of the conclusions from the evaluation.
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