Sökning: "structural timber"

Visar resultat 16 - 20 av 86 avhandlingar innehållade orden structural timber.

  1. 16. Moisture-related properties of modified timber - an experimental study

    Författare :Hannah Epmeier; Chalmers tekniska högskola; []
    Nyckelord :Scots pine; material properties; chemical modification; building components; timber; bending creep;

    Sammanfattning : Wood has long traditions as a structural and building material. In those cases in which its natural features are not sufficient, chemical modification can eliminate some shortcomings. LÄS MER

  3. 17. Moisture Induced Stress Perpendicular to Grain in Timber Structures

    Författare :Martin Häglund; Avdelningen för Konstruktionsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wood.; timber; perpendicular to grain; load combination factor; tensile stress; mechano-sorption; Moisture induced eigen-stress; varying moisture content;

    Sammanfattning : Timber structures and wooden element are in general affected by moisture and moisture variation in different ways. Their hygroscopic properties result in adsorption of water when wetted and in desorption when dried. LÄS MER

  4. 18. Modular long-span timber structures : a systematic framework for buildable construction

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

    Sammanfattning : 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. LÄS MER

  5. 19. Steel-to-timber dowel joints : Influence of moisture induced stresses

    Författare :Johan Sjödin; Hans Petersson; Carl-Johan Johansson; Per-Johan Gustavsson; Växjö universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; constraint stresses; contact-free measurement; dowel-type joints; humidity variations; moisture-induced deformations; timber structures; Building engineering; Byggnadsteknik; Byggteknik; Civil engineering;

    Sammanfattning : Joints are critical parts of timber structures, transmitting static and dynamic forces between structural members. The ultimate behavior of a loaded building depends strongly on the structural configuration and the capacity of the joints. LÄS MER

  7. 20. Träbärverk i äldre svenska kyrkor: Verkningssätt hos takstolar utan bindbjälke

    Författare :Ylva Sandin; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; timber; structural behaviour; roof truss; old; church;

    Sammanfattning : The study concerns the structural behaviour of old wooden roof trusses in Swedish churches. FE-modelling of their properties as based on seven different trusses was used in evaluations aimed at the creation of a tool for gaining a better understand¬ing of such trusses. The trusses investigated all lacked tie beams and were of wide span. LÄS MER