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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Terrestrial Laser Scanning for Wooden Facade-system Inspection

Scharf, Alexander January 2019 (has links)
The objective of this study was to evaluate the feasibility of measuring movement, deformation and displacement in wooden façade-systems by terrestrial laser scanning. An overview of different surveying techniques and methods has been created. Point cloud structure and processing was explained in detail as it is the foundation for understanding the advantages and disadvantages of laser scanning.    The boundaries of monitoring façades with simple and complex façade structures were tested with the phase-based laser scanner FARO Focus 3DS. In-field measurements of existing facades were done to show the capabilities of extracting defect features such as cracks by laser scanning. The high noise in the data caused by the limited precision of 3D laser scanners is problematic. Details on a scale of several mm are hidden by the data noise. Methods to reduce the noise during point cloud processing have proven to be very data-specific. The uneven point cloud structure of a façade scan made it therefore difficult to find a method working for the whole scans. Dividing the point cloud data automatically into different façade parts by a process called segmentation could make it possible. However, no suitable segmentation algorithm was found and developing an own algorithm would have exceeded the scope of this thesis. Therefore, the goal of automatic point cloud processing was not fulfilled and neglected in the further analyses of outdoor facades and laboratory experiments. The experimental scans showed that several information could be extracted out of the scans. The accuracy of measured board and gap dimensions were, however, highly depended on the point cloud cleaning steps but provided information which could be used for tracking development of a facade’s features. Extensive calibration might improve the accuracy of the measurements. Deviation of façade structures from flat planes were clearly visible when using colorization of point clouds and might be the main benefit of measuring spatial information of facades by non-contact methods. The determination of façade displacement was done under laboratory conditions. A façade panel was displaced manually, and displacement was calculated with different algorithms. The algorithm determining distance to the closest point in a pair of point clouds provided the best results, while being the simplest one in terms of computational complexity. Out-of-plane displacement was the most suitable to detect with this method. Displacement sideways or upwards required more advanced point cloud processing and manual interpretation by the software operator. Based on the findings during the study it can be concluded that laser scanning is not the correct methods for structural health monitoring of facades when the tracking of small deformations, especially deformations below 5 mm and defects like cracks are the main goal. Displacements, defects and deformations of larger scale can be detected but are tied to a large amount of point cloud processing. It is not clear if the equipment costs, surveying time and the problems caused by high variability of scans results based on façade color, shape and texture are in a positive relation to the benefits obtained from using laser scanning over manually surveying.
2

Träfasader på höga hus : Brandtekniska möjligheter / Wooden facades on high-rise buildings

Persson, Tobias, Hannu, Oscar January 2019 (has links)
1994 ändrades den svenska lagstiftningen så att trä blev tillåtet i byggnader över tvåvåningar. Det finns vissa funktionskrav som ska uppfyllas för brandsäkerhet. Dettaarbete innehåller intervjuer med aktörer från byggbranschen som berör deras ochandra aktörers kunskapsnivå i ämnet. Möjligheter att bygga högt med träfasadpresenteras. Studien visar att flera möjligheter för att använda träfasader i höga husges i Boverkets byggregler. Olika aktörerna i byggbranschen uppfattar att de självahar goda kunskaper men att kunskapsbrister i branschen gällande brandskyddskravfinns. / The Swedish legislation of building code was changed in 1994, allowingconstruction of wooden buildings over two floors. To do so there are certainfunctional requirements that must be fulfilled to obtain fire safety. This studydetermines the level of knowledge of different contractors in the constructionindustry in the subject through interviews. The possibilities of using wooden facadesin high-rise building are also presented. The study shows that several possibilities touse wooden facades i high rise buildings are possible according to the legislation.Contractors in the industry consider their knowledge to be sufficient but believesthere is a general lack of knowledge in the industry regarding fire safetyrequirements.
3

Horský sportovní hotel / Mountain and Sport Hotel

Horálek, Jiří January 2013 (has links)
The project designs engineering documentation of a mountain sport hotel for temporary accommodation for 55 people including firstly those with limited ability of movement and secondly a housekeeper flat with one room and a kitchenette plus sanitary facilities. The building is situated in a sky resort of the Krkonoše boarder village Dolní Malá Úpa in National Park KrNaP.The three-storey building is typical for its tin ridge roof, gable fronted and shed dormers, wooden facade, and a slope location with longitudinal parallel ground plan with level lines. Accommodation is projected on the second and third flours. On the first floor there are hotel premises like a restaurant with a kitchen, a sport requisites rental, storerooms, an office, a gym and a rehab with its own background. Construction system of the first floor is masonry whereas the second and third floors are designed as assembled wooden houses.
4

Veterinární klinika / Veterinary clinic

Karásková, Zuzana January 2016 (has links)
This diploma thesis deals with veterinary clinics in Prostejov. The building is secluded on almost flat land. The building has a simple rectangular shape, replicating the street, with a receding second floor. The building is brick, two-storey, basement, covered with a flat roof and green roof terrace. On the first floor are situated surgeries, surgeries, operating rooms, facilities for employees and utility room. On the second floor there is a pet shop, counseling, treatment plant dog, sanitary facilities for public office and facilities for temporary accommodation of employees, where it is possible to get to the green roof terrace. The building is insulated, partially with white plaster and partly with wooden facade panels. The building is in part intended for the general public designed wheelchair.
5

Polyfunkční dům / Multifunctional building

Plávková, Pavla January 2022 (has links)
This work addresses the multifunkctional building in the cadastral of territory Křemže. The object is placed on flat terrain. The House has three floors, and no basement. The roof is classical, symmetrical, a saddle with a keel. The House has the shape of a rectangle with an extension of. The extension is a single-storey, rectangular-shaped object with a flat foot roof. Cladding of the facade forms the hanging wooden wall. The extension consists of facilities for staff of forest garden. The main building will be facilities for the sales department, administration, accounting, and management of the company.
6

Vícepodlažní dřevostavba / Multi-storey Wooden Building

Macháčková, Eva January 2013 (has links)
Master’s thesis deals with complete project documentation of newly built object of library and mediatheque located on the site in České Budějovice. It is a three-storey building divided into three parts, one-storey, two-storey and three-storey. It is partly basement. The underground part is devoted to main storage spaces of library services, management offices and social facilities for staff (toilets, changing rooms, washrooms). This part of the building has own entrance for employees. In the 1st floor is located the main library area along with exhibition spaces and the main entrance for visitors with self service cloakroom. In the 2nd floor are designed library spaces for visually impaired persons with fund of audio books, CDs and DVDs, a lecture hall with a projector and own kitchen and space for reading magazines and periodicals. From this floor is possible access to the outdoor terrace, which has own terrace furniture store nearby. In the 3rd floor is located a literary café with its own facilities. In each floor are also designed sanitary facilities for use by persons with limited ability of movement and orientation. All floors are connected by stairs and passenger lifts. In terms of construction, the building is designed as a frame, in the underground parts made of reinforced concrete, the overhead of glued laminated timber elements. The ceiling structure designed over the underground floor is monolithic reinforced concrete slab. The ceilings in the upper part are designed as a wooden beamed made of the glued laminated timber elements. The building has a pent roof created by wooden trusses assembled with punched metal plate fasteners. The foundations are designed as belts and footings. The study, detailed documentation, thermal-technical evaluation of selected structures and fire safety of the building are processed. For processing of the thesis were used software AutoCAD 2010, Teplo 2011, Area 2011, Ztráty 2011 and Fire NX 802 PRO.

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