Search for dissertations about: "Long span structure"

Showing result 1 - 5 of 21 swedish dissertations containing the words Long span structure.

  2. 1. Modular long-span timber structures : a systematic framework for buildable construction

    Author : Anders Björnfot; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Träbyggnad; Timber Structures;

    Abstract : One of the identified reasons for the low amount of timber construction in Sweden is a general lack of knowledge about timber engineering and how timber can be used to its full advantage. One way for increased timber construction is the development of a cost-efficient and easy to comprehend building system. READ MORE

  4. 2. Structure, Bonding and Chemistry of Water and Hydroxyl on Transition Metal Surfaces

    Author : Klas Andersson; Anders Nilsson; Falko Netzer; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; core-level spectroscopy; surface chemistry; water; hydroxyl; metal surfaces; adsorption; structure; hydrogen bonding; Chemical physics; Kemisk fysik;

    Abstract : The structure, bonding and chemistry of water and hydroxyl on metal surfaces are presented. Synchrotron based x-ray photoelectron- and x-ray absorption spectroscopy along with density functional theory calculations mainly form the basis of the results. READ MORE

  5. 3. Communicating long-span timber structures with 3D computer visualization

    Author : Henrik Janols; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Träbyggnad; Timber Structures;

    Abstract : One of the reasons for the low amount of timber in construction is a general lack of knowledge about timber engineering and how timber can be used to its full advantage. In this thesis the focus is 3D computer visualisation (3D VIZ) of non-residential long-span timber structures, used for storage, industry and sports where 3D VIZ is defined as a process where a 3D-model is enhanced with environmental information e. READ MORE

  6. 4. Soil-Steel Composite Bridges : Research advances and application

    Author : Amer Wadi; Raid Karoumi; Lars Pettersson; Ian D. Moore; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Flexible culvert; Soil‒steel composite bridge; Sloping terrain; Swedish design method; Finite element model; Ultimate capacity; Avalanche load; Failure load; Low soil cover; Failure mechanism; Long-span; Byggvetenskap; Civil and Architectural Engineering;

    Abstract : Soil-steel composite bridges are considered competitive structures being an economical alternative to similar span concrete bridges. This frequently stimulates practitioners to push their design limits and expand the different areas of application including their performance in sloping terrain. READ MORE

  7. 5. Feathers by day, membranes by night - Aerodynamic performance in bird and bat flight

    Author : Florian Muijres; Evolutionär ekologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; animal flight; aerodynamics; vortex wake; actuator disk; flight performance; span efficiency; bird; bat; wind tunnel; PIV; Pied Flycatcher; Glossophaga soricina; Leptonycteris yerbabuenae;

    Abstract : The efficiency and performance of a flying animal is directly related to the aerodynamics around its body and flapping wings. Here, I have developed methods for quantifying the wake dynamics around a flying animal. The results are used to estimate the aerodynamic performance of flapping flight. READ MORE