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Showing result 1 - 5 of 8 essays matching the above criteria.

  1. 1. Dynamic Soil-Structure Interactionof Soil-Steel Composite Bridges : A Frequency Domain Approach Using PML Elements and Model Updating

    University essay from KTH/Bro- och stålbyggnad

    Author : DIEGO FERNANDEZ BARRERO; [2019]
    Keywords : Dynamics; soil-steel bridges; soil-structure interaction; model updating; PML; particle swarm; corrugated steel plates; frequency domain assurance criteria; parallel computing 2;

    Abstract : This master thesis covers the dynamic soil structure interaction of soil-steel culverts applyinga methodology based on the frequency domain response. At the first stage of this masterthesis, field tests were performed on one bridge using controlled excitation. READ MORE

  3. 2. The effect of increasing train lengths on the fatigue lifespan of a bridge.

    University essay from KTH/Bro- och stålbyggnad

    Author : Franck Monballiu; Wouter Schils; [2016]
    Keywords : Finite element model updating; sensitivity analysis; objective function; dynamic analysis; Banafjäl bridge; fatigue lifetime; high-speed bridge;

    Abstract : More and more pressure is exerted on railway infrastructure due to an increasing transportation demand and population density. Instead of expanding the net, a possible solution could lie in the enlargement of the capacity by operating longer trains rather than more short ones. READ MORE

  4. 3. Numerical analysis and model updating of a steel-concrete composite bridge : Parametric study & Statistical evaluation

    University essay from KTH/Bro- och stålbyggnad

    Author : Keiwan Abdulrahman; Fadi Potrus; [2015]
    Keywords : Model updating; Finite element method; Parameter study; Abaqus; Composite bridges; Global behaviour; Modeluppdatering; Finita element metoden; Parameter studie; Abaqus; Samverkansbroar i stål och betong; Globalt beteende;

    Abstract : In the year 2006, only 10 years after the steel- concrete composite bridge, Vårby bridge was built, fatigue cracks were found during an inspection. To further investigate the reasons and the potential danger of the cracks, an investigation under the commission of the Swedish Transport Administration was issued in 2009. READ MORE

  5. 4. Implementation and Testing of Two Bee-Based Algorithms in Finite Element Model Updating

    University essay from KTH/Bro- och stålbyggnad

    Author : Roser Marrè Badalló; [2013]
    Keywords : Model Updating; Finite Bees Algorithm; Artificial Bee Colony;

    Abstract : Finite Element Model Updating has recently arisen as an issue of vast importance on the design, construction and maintenance of structures in civil engineering. Many algorithms have been proposed, developed and enhanced in order to accomplish the demands of the updating process, mainly to achieve computationally efficient programs and greater results. READ MORE

  6. 5. Welded Frame Finite Element Modelling and Experimental Modal Analysis

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Muralikrishna Koduri; Woodrow Wilson Wilson Devadoss; [2013]
    Keywords : Finite element model; Modal analysis; Experimental Investigation; Modal Updating;

    Abstract : In this modern developing world finite element model is one of the main tools and they are becoming more and more advanced day by day in all mechanical fields. Before manufacturing a product the demands for finite element model is more between the manufacturers. READ MORE