Sökning: "stiffeners"

Visar resultat 1 - 5 av 9 avhandlingar innehållade ordet stiffeners.

  1. 1. Structural sound transmission and attenuation in lightweight structures

    Författare :Lars-Göran Sjökvist; RISE; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; sound insulation; acoustics; wooden houses; Fourier transform; lightweight building; stiffened plate; junction; stiffeners; flanking transmission; attenuation;

    Sammanfattning : Everyone wants a peaceful and quiet home, but in noisy cities it is a challenge to create such homes. New building techniques are mostly introduced for other purposes than noise control -- stability, economy, heat transfer and so on. LÄS MER

  3. 2. Secondary strain in web stiffeners in steel and composite bridges

    Författare :Mattias Nilsson; Andreas Lechner; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Structural Engineering; Konstruktionsteknik;

    Sammanfattning : Sommaren 2006 så upptäcktes ett flertal sprickor på bron över Vårby fjärden i närheten av Stockholm. Samtliga sprickor syntes ha uppstått i svetsar som förbinder vertikala livavstyvningar med huvudbalkarnas överflänsar. LÄS MER

  4. 3. Patch loading resistance of plated girders : ultimate and serviceability limit state

    Författare :Jonas Gozzi; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Steel Structures; Stålbyggnad;

    Sammanfattning : Patch loading or partial edge loading of steel girder webs is a load case where a concentrated force is introduced perpendicular to the flange of a girder. This usually induces a local failure of the girder web in the vicinity of the loaded flange. LÄS MER

  5. 4. Patch loading : resistance of longitudinally stiffened steel girder webs

    Författare :Carlos Graciano; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Steel Structures; Stålbyggnad;

    Sammanfattning : In most cases, longitudinal stiffeners increase the resistance of steel girder webs subjected to concentrated forces, commonly referred to as patch loading. During the last three decades, a number of experimental investigations have been undertaken in all over the world in this regard. LÄS MER

  7. 5. Processing of self-reinforced poly(ethylene terephthalate) composites for automotive applications

    Författare :Lars Jerpdal; Malin Åkermo; Hans-Peter Heim; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vehicle and Maritime Engineering; Farkostteknik;

    Sammanfattning : The vehicles of the future must have less negative environmental impact during their use phase than the vehicles of today in order to avoid major climate change on earth. Consequently electric vehicles are currently under development with the purpose of reducing CO2 emissions when the vehicle isdriven. LÄS MER