National Repository of Grey Literature 16 records found  1 - 10next  jump to record: Search took 0.00 seconds. 
Preparation and implementation of construction and technical survey of the former town hall building in Litomyšl
Růžička, Petr ; Komárková, Tereza (referee) ; Anton, Ondřej (advisor)
The bachelor's thesis covers preparation and implementation of structural-technic survey of a former town hall building of city Litomyšl. The theoretical part focuses on properties of masonry, properties of timber and methods essential for their appraisal. The practical part deals with planning, performing and assessment of structural-technic survey. In conclusion the bachelor's thesis determines material characteristics based on performed exams, determines composition of ceilings and appraises conditions of timber structures.
Methodology of traditional working of construction timber for structural repairs of historical buildings
Kloiber, Michal ; Růžička, Petr ; Tippner, J. ; Kunecký, Jiří
The publication deals with a methodological description of traditional (manual) wood working for structural measures in repairs of historical buildings. The methodology includes the results of experimental testing performed during timber logging in various seasons (winter, spring, summer), results for different ways of working (cutting, splitting, hewing, and combination of hewing with floating), results of verifying the elimination of growth (residual) stresses in wood selection and working (selection of wood without natural defects and intentional interventions during working). The resulting methodology meets the protection standards of cultural heritage, in particular the requirement to minimize interference with the original material, while using the original working technology for newly incorporated elements including material selection. The methodology describes the prerequisites for use and the necessary marginal conditions, material selection, handling and storage of logs, woodworking technology (hewing, splitting, and cutting), but also storage of worked elements until the actual structural repair, while presenting the version of minimum interference with the original material using traditional (manual) working of timber on specific examples of structural elements.
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The racionalization of machining of gearboxes
Sádlo, Dominik ; Růžička, Petr (referee) ; Sliwková, Petra (advisor)
Content of the thesis is the proposal of new technology using machining centres, including five controlled axis. Benefit of implementation the new nechnology is investigated at machining example, which is the gear housing of a single stage gearbox, manufactured in the company. In the first part of the thesis, the general properties of gearboxes and their housings are analyzed, as well as the procedure of the current proces of the machining representative. In practical part of the thesis is proposed necessary tool equipment and jig equipment, needed for machining of the part. After that are analyzed and filled in time studies, provided by manufacturers of machining centres. On the bases of these studies, were calculated operating times and operating costs per one piece of the housing. In the part of technical and economical evaluation is calculated the return of initial investment, including costs for byuing new machining cente and cutting tools equipment. Finaly are evaluated the overal benefits of the new technology, given the needs of the company.
Traditional working and quality of timber during repairs of timber structures
Kloiber, Michal ; Růžička, Petr
Extensive field experience with repairing timber structures shows two main limiting factors for the quality of work that are often circumvented or simplified. First, it is the quality of the timber for the repairs (replacements, additions) and the resulting problem when the recommended criteria for the selection of suitable material are not met, with regard to the long-term coexistence of the new timber with the original material. Second, a critical factor is the way in which the timber is worked - the preferred traditional working is for various reasons replaced by counterfeits. Due to the limited scope of this paper, we can only pay attention to the most blatant case, which is working of logs by hewing.
Survey report: Construction and technical assessment of the state of timber, trace analysis and surveying of a timbered barn in Skalička 3
Kloiber, Michal ; Růžička, Petr ; Buzek, Jaroslav ; Hrivnák, Jaroslav ; Bláha, Jiří
Surveys whose aggregate output is this survey report included the determination of the extent of damage to the timber, surveying, and trace analysis of the original craftsman working of a timbered barn belonging to house no. 3 in the village of Skalička u Hranic, which is located in the Přerov district in the Moravian region called Pobečví. The report has been drawn in response to the demand by the Wallachian Open Air Museum located in Rožnov pod Radhoštěm, which contained a request to diagnose the timber elements using NDT devices and carry out their trace analysis. The findings will contribute to a qualified assessment and proposal of a harmless transfer of this unique timbered building.
Survey Report: Detection of the extent of timber damage and traceological analysis of craftsman working Čistá u Litomyšle no. 97 - barn
Kloiber, Michal ; Bláha, Jiří ; Frankl, Jiří ; Růžička, Petr ; Buzek, Jaroslav
The surveys, whose combined output is this survey report, covered the detection the extent of timber damage and traceological analysis of the original craftsman’s woodworking of selected elements of a dismantled polygonal barn, formerly belonging to house no. 97 in Čistá u Litomyšle. The impulse for the report was an order by the Wallachian Open Air Museum with headquarters in Rožnov pod Radhoštěm, which included the request for the diagnosis of selected timber elements using NDT devices and their traceological analysis. The knowledge gained can contribute to a qualified assessment and a proposal of gentle transfer of this unique log building.

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