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Research in the field of construction elements and design of concrete pavements
Grošek, Jiří ; Birnbaumová, Marie (referee) ; Vébr,, Ludvík (referee) ; Varaus, Michal (advisor)
The presented dissertation is focused on research in the field of dowels and design of concrete pavements using the finite element method. The theory part describes the history and the currently used techniques in the world and in the Czech Republic. The practice part of the dissertation contains a description of design methods, diagnostics of concrete pavements by using FWD and a description of laboratory tests on beams with inserted dowels. The results of measurements and modelling are verified on real operating conditions on testing fields. Based on the dissertation results, the amendment of the Czech standard ČSN 73 6123-1 regarding the position of dowels were proposed and approved. In addition, methodological guidelines of the Ministry of Transport regarding the measurements of the dowels and tie bars position and diagnostic by FWD was approved. The conclusion of the work summarizes and emphasizes the results of the dissertation.
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Use of the ultrasonic pulse-echo method for diagnostics of structures
Juráň, David ; Kocáb, Dalibor (referee) ; Cikrle, Petr (advisor)
The bachelor thesis is dealing with the description non-destructive methods which are regularly used in practice. The emphasis is placed on ultrasonic pulse-echo method, the principle and possible application in diagnostic of reinforced concrete structures. In practical tasks was this method applied on different types of constructions for the purpose of determination the thickness. The measurement was taken with Pundit PL-200PE and Pundit 250 Array devices by Proceq company. The outputs from both devices were compared and evaluated to each other with regards to possible factors, that could deviate measured values from the real thickness of researched constructions.
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Inspection of the implementation of reinforced concrete structures
Juráň, David ; Vymazal, Tomáš (referee) ; Cikrle, Petr (advisor)
This diploma thesis deals with the control of the implementation of reinforced concrete structures. The theoretical part deals with the issues of this theme. There are presented individual work processes of the implementation of reinforced concrete structures, accesses of valid standards, used diagnostic methods and also inspection and test plans for cast-in-place reinforced concrete structure. The practical part is divided into three chapters. The first chapter applies with the most frequent defects in new reinforced concrete structures and two remaining chapters with the inspection of newly built structures for which arose misgivings about the quality of execution.
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Inspection of the implementation of reinforced concrete structures
Juráň, David ; Vymazal, Tomáš (referee) ; Cikrle, Petr (advisor)
This diploma thesis deals with the control of the implementation of reinforced concrete structures. The theoretical part deals with the issues of this theme. There are presented individual work processes of the implementation of reinforced concrete structures, accesses of valid standards, used diagnostic methods and also inspection and test plans for cast-in-place reinforced concrete structure. The practical part is divided into three chapters. The first chapter applies with the most frequent defects in new reinforced concrete structures and two remaining chapters with the inspection of newly built structures for which arose misgivings about the quality of execution.
|
|
|
Use of the ultrasonic pulse-echo method for diagnostics of structures
Juráň, David ; Kocáb, Dalibor (referee) ; Cikrle, Petr (advisor)
The bachelor thesis is dealing with the description non-destructive methods which are regularly used in practice. The emphasis is placed on ultrasonic pulse-echo method, the principle and possible application in diagnostic of reinforced concrete structures. In practical tasks was this method applied on different types of constructions for the purpose of determination the thickness. The measurement was taken with Pundit PL-200PE and Pundit 250 Array devices by Proceq company. The outputs from both devices were compared and evaluated to each other with regards to possible factors, that could deviate measured values from the real thickness of researched constructions.
|
|
|
Research in the field of construction elements and design of concrete pavements
Grošek, Jiří ; Birnbaumová, Marie (referee) ; Vébr,, Ludvík (referee) ; Varaus, Michal (advisor)
The presented dissertation is focused on research in the field of dowels and design of concrete pavements using the finite element method. The theory part describes the history and the currently used techniques in the world and in the Czech Republic. The practice part of the dissertation contains a description of design methods, diagnostics of concrete pavements by using FWD and a description of laboratory tests on beams with inserted dowels. The results of measurements and modelling are verified on real operating conditions on testing fields. Based on the dissertation results, the amendment of the Czech standard ČSN 73 6123-1 regarding the position of dowels were proposed and approved. In addition, methodological guidelines of the Ministry of Transport regarding the measurements of the dowels and tie bars position and diagnostic by FWD was approved. The conclusion of the work summarizes and emphasizes the results of the dissertation.
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