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Survey and Diagnostics of Building Construction
Pernová, Jana ; Komárková, Tereza (referee) ; Anton, Ondřej (advisor)
The object of the theoretical part of this diploma thesis is overview of the historical development of reinforced concrete and concrete reinforcements, including the elaboration of a detailed methodology for the assessment of the state of bridge structures. It is applied in practical parts of two bridges independent on each other. There are used the most modern technologies like device Hilti PS1000, profometer PM-630 to diagnose objects and they are completed by chopped probe. It also includes a structural analysis of the load capacity, that concurrently evaluates the quality of the construction.
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Travelling crab
Odehnal, Jiří ; Pokorný, Přemysl (referee) ; Malášek, Jiří (advisor)
This Bachelor’s thesis deals with the design of a crane crab lifting gear with a load capacity of 10, 000 kg. Based on the entered parameters, the rope, rope drum, balancing pulley, and the block pulley’s main body parts, such as guide pulley, piston pins, side rails and crosspiece, are calculated. The thesis also includes a strength check of the rope drum and the individual parts of the block pulley, the draft of the lifting gear’s drive as well as the drawings of the block pulley set and selected parts.
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Steel structure for the the stationary hydraulic unit
Petr, Tomáš ; Pokorný, Jan (referee) ; Pokorný, Přemysl (advisor)
The main theme of this diploma thesis is a description and a strength analysis of several steel structures of valve frames used by Bosch Rexroth, s. r. o. The first part sums up possibilities of fastening of hydraulic control elements. Furthermore, current types of valve frames were described. The strength analysis of three steel structures was output of using the finite elements method. The result of these analysis was the determination of the loads and critical points of individual structures. In the end of this study, new structures for one block frame were designed to modify the critical locations of the original solution.
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Using electromagnetic indicators from surveys of reinforced concrete structures
Tkadleček, Petr ; Vítek, Lubomír (referee) ; Cikrle, Petr (advisor)
The diploma thesis describes non-destructive methods for diagnostics of reinforcement. It is focused on the method of electromagnetic indicators. In the first part the methods are described and compared. The profometer PM-630 is also described. The second part describes experimental measurements with profometer on reinforced concrete structures. The results are described and interpreted. The effects, which have influence on measurement, are described. The recommendations for practical measurement with profometer are described. The experimental models were created for calibration of profometer. The part of this thesis is also the determination of load bearing capacity of reinforced concrete bridge in Nosislav.
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Reconstruction of the road bridge near the village Holýšov
Svoboda, Adam ; Pinkas, Karel (referee) ; Klusáček, Ladislav (advisor)
The thesis deals with design of strengthening of existing bridge structure near the village Holýšov using modern method of additional presstresing. The bridge over the river of Radbuza is h-shaped beam bridge, which was built in 1924. In the present state its load capacity is under the limits for bridges situated on first-class roads. Original documentation of the bridge does not exist, the main source of information about construction details is the diagnostics research. The method of reinforcement by post-tensioning by cables in substituted cable ducts is highly efective in terms of the incerease the load capacity of existing bridge structure. The design of strengthening and the final load capacity was verified by static calculation.
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Diagnostics of Reinforced Concrete Bridge
Rozbroj, Lukáš ; Anton, Ondřej (referee) ; Cikrle, Petr (advisor)
This thesis contains diagnostics of a reinforced concrete girder bridge in the municipality of Újezd u Brna. The aim is to conduct an inspection of the bridge, gather quality photo-documentation of defects and failures and design and conduct a diagnostic examination of such extent that would be necessary for judging the load bearing capacity of the bridge. The result of this thesis is the determined load bearing capacity and a proposal of measures required to keep the bridge functional.
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Travelling Crab
Kolář, Jiří ; Jonák, Martin (referee) ; Malášek, Jiří (advisor)
Thesis covers the basic calculations for the design of the basic dimensions of the lift mechanism of travelling crab to load 30,000 kg, strength calculation parts of the hook block such as pulley bolt, beam and side rod, as well as draft propulsion. The last part is the design documentation of assembly drawing of the hook block and detailed drawings of selected components.
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