National Repository of Grey Literature 10 records found  Search took 0.00 seconds. 
The Impact of Elevated Temperatures on the Interaction of FRP Reinforcement and Concrete: An Experimental Study
Lagiň, Juraj ; Zlámal, Martin ; Čairović, Đorđe ; Zlámalová, Pavlína ; Vašátko, David ; Štěpánek, Petr
This research focused on determining the interaction of FRP reinforcement and concrete under normal conditions and elevated temperatures. The specimens consisted of reinforcement embedded into a concrete block and loaded with tensile force. Specimens representing extreme conditions were placed in a furnace and exposed to elevated temperatures. Three types of composite rebars with different properties were tested. The results of the experiments confirm a significant reduction in bond of composite rebars, which, at higher temperatures, can lead to a sudden loss of bond between the rebar and concrete.
Study of thermal resistance of reinforced wood members
Janoušek, Radek ; Krbila, Jaromír (referee) ; Vaněrek, Jan (advisor)
This bachelor's thesis studies the problem of thermal resistance of a system consisting of timber as a structural member with external strengthening in the form of carbon fibre reinforced polymer lamellas connected by various types of adhesives. Attention will be paid to the thermal resistance of reinforced timber members with subsequent mechanical load.
Slab bridge with FRP reinforcement
Paravan, Marek ; Zich, Miloš (referee) ; Panáček, Josef (advisor)
The Bachelor's thesis deals with a design of a new slab bridge over the Svitava river. As a reinforcement for load-carrying construction with the lenght of 12,89 m and a full rectangle cross secion FRP bars were used and compared with nonprestressed steel. The calculation of load effects is solved by Scia Engineer 14 and results are checked manualy. The load-carrying construction is assessed for the ultimate limit state and the serviceability limit state according to ČSN EN 1992-1-1, ČSN EN 1992-2 and technical report fib TG 9.3.
FRP for concrete reinforcement
Blahová, Aneta ; Vaněrek, Jan (referee) ; Bodnárová, Lenka (advisor)
The bachelor thesis deals with composite polymer FRP reinforcement. It descibes the method of manufacturing FRP reinforcements, which are their properties and what materials are used by manufacturers. Lists FRP reinforcement application in various structures. Also mentions the durability of FRP reinforcement in an aggressive environment and the cohesiveness of FRP reinforcement with concrete. The conclusion of the work is a proposal for experimental testing of a bond between FRP reinforcement and concrete.
Application of FRP reinforcement in the design of concrete structures
Kratochvílová, Barbora ; Lagiň, Juraj (referee) ; Girgle, František (advisor)
This bachelor thesis deals with two types of reinforcement FRP reinforcement and generally used steel reinforcement. The first part of this thesis is focused on theoretical knowledge related to FRP reinforcement. There is described its composition, properties, production, durability and its design properties from a theoretical point of view. In the following part, the design and assessment of a specific prefabricated U part is performed. The design and assessment is performed in two variants from FRP reinforcement and steel reinforcement.
Application of FRP reinforcement in the design of concrete structures
Kratochvílová, Barbora ; Lagiň, Juraj (referee) ; Girgle, František (advisor)
This bachelor thesis deals with two types of reinforcement FRP reinforcement and generally used steel reinforcement. The first part of this thesis is focused on theoretical knowledge related to FRP reinforcement. There is described its composition, properties, production, durability and its design properties from a theoretical point of view. In the following part, the design and assessment of a specific prefabricated U part is performed. The design and assessment is performed in two variants from FRP reinforcement and steel reinforcement.
Study of thermal resistance of reinforced wood members
Janoušek, Radek ; Krbila, Jaromír (referee) ; Vaněrek, Jan (advisor)
This bachelor's thesis studies the problem of thermal resistance of a system consisting of timber as a structural member with external strengthening in the form of carbon fibre reinforced polymer lamellas connected by various types of adhesives. Attention will be paid to the thermal resistance of reinforced timber members with subsequent mechanical load.
FRP for concrete reinforcement
Blahová, Aneta ; Vaněrek, Jan (referee) ; Bodnárová, Lenka (advisor)
The bachelor thesis deals with composite polymer FRP reinforcement. It descibes the method of manufacturing FRP reinforcements, which are their properties and what materials are used by manufacturers. Lists FRP reinforcement application in various structures. Also mentions the durability of FRP reinforcement in an aggressive environment and the cohesiveness of FRP reinforcement with concrete. The conclusion of the work is a proposal for experimental testing of a bond between FRP reinforcement and concrete.
Slab bridge with FRP reinforcement
Paravan, Marek ; Zich, Miloš (referee) ; Panáček, Josef (advisor)
The Bachelor's thesis deals with a design of a new slab bridge over the Svitava river. As a reinforcement for load-carrying construction with the lenght of 12,89 m and a full rectangle cross secion FRP bars were used and compared with nonprestressed steel. The calculation of load effects is solved by Scia Engineer 14 and results are checked manualy. The load-carrying construction is assessed for the ultimate limit state and the serviceability limit state according to ČSN EN 1992-1-1, ČSN EN 1992-2 and technical report fib TG 9.3.
Kotvení předpjaté frp výztuže pro betonové konstrukce
Girgle, František ; Horák, David ; Štěpánek, Petr ; Laníková, Ivana ; Šimůnek, Petr
Non-metallic reinforcement has many advantages, but there are some areas of application that need to be resolved to improve the usage of FRP reinforcement in real conditions. One of the disadvantages of FRP reinforcement is its lower modulus of elasticity, which leads to greater deflections of structures and can also cause early propagation of cracks. The paper deals with the possibility of eliminating this problem by prestressing the reinforcement. It covers several problems related to anchoring and current anchoring methods used world-wide. The paper also mentions some drawbacks of these methods. In an effort to bypass these drawbacks a new anchoring method has been developed. It differs in the way longitudinal forces are transferred from the bar to the surrounding concrete. Basically, it is based on the addition of an additional anchoring member (cylinder) on the surface. This member is made of polymers so the whole system remains completely steel-free and very simple to produce. Before using the system in real structures a series of tests were performed and the results are presented. Also, some prestressed test panels were prepared and compared with standard panels.

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