Search for dissertations about: "orthotropic bridge deck"

Found 5 swedish dissertations containing the words orthotropic bridge deck.

  1. 1. Laser-welded corrugated core steel sandwich bridge decks

    Author : Peter Nilsson; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fatigue; steel sandwich; corrugated core; laser-weld; Bridge deck;

    Abstract : Steel bridge decks are often used for applications when a lightweight structure is sought for. Conventional orthotropic steel decks suffers from drawbacks in several aspects, including high production costs and durability problems. READ MORE

  2. 2. Fatigue Analysis of Welded Structures Using the Finite Element Method

    Author : Mustafa Aygül; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hot spot stress; effective notch stress; the finite element method; orthotropic bridge deck; welded details;

    Abstract : Fatigue design and analysis of steel and composite bridges is generally based on the notion of the nominal stress using the classified S-N curves with corresponding fatigue classes for typical details. Such an approach can yield unrealistic the estimation of the load effects for structure components because of an ever increasing number of structural details and loading situations resulting in a limited number of possible treatable design cases. READ MORE

  3. 3. Mechanisms of Blister Formation on Concrete Bridge Decks with Waterprooving Asphalt Pavement Systems

    Author : Biruk Wobeshet Hailesilassie; Björn Birgisson; Lars-Olof Nilsson; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; blister growth; PBM waterproofing membrane; orthotropic material; biaxial test; peeling test; elliptical blister growth;

    Abstract : Bridge decks are commonly subjected to harsh environmental conditions that often lead to serious corrosion problems triggered by blisters under the hot mix asphalt bridge deck surfacing and secretly evolving during weather exposure until damage is often detected too late. Blisters may form under both the waterproofing dense mastic asphalt layer or under the waterproofing membrane which is often applied as additional water protection under the mastic asphalt (MA). READ MORE

  4. 4. Stress-laminated-timber bridge decks subjected to ultimate loads

    Author : Kristoffer K J Ekholm; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY; Ultimate-load tests; Stress-laminated timber; Timber bridges;

    Abstract : Stress-laminated-timber (SLT) bridge decks are a satisfactory alternative to conventional short-span bridges in terms of cost and performance. SLT decks are made from several deck laminations positioned side by side. READ MORE

  5. 5. Laser-welded corrugated core steel sandwich panels for bridge application

    Author : Peter Nilsson; Chalmers University of Technology; []
    Keywords : shear stiffness; corrugated core; laser-welding; joint geometry; sandwich panel;

    Abstract : The design of steel bridge decks has remained unchanged since the introduction of orthotropic decks. Orthotropic decks are expensive to produce, mainly due to high labor-costs. READ MORE