Development of new methodologies to assess the structural integrity of the grouted joint of a 10MW wind turbine substructure

Benjamin Santos, Tomas Gintautas, John Dalsgaard Sørensen, Alvaro Rodriguez, David Fernandez, Anand Natarajan, Wilfried NJOMO WANDJI

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    Monopiles are currently the most commonly used substructure in the offshore wind market due to their ease of installation in shallow to medium waters. The monopile and the transition piece are connected by a grouted joint. Fatigue and corrosion are two of the most important degradation mechanisms in this type of support structures. These mechanisms increase the costs and compromise the reliability of the structures. The development of new models and methodologies for the analysis of these degradation mechanisms is crucial. For this reason, a methodology to analyze the behavior of grouted joints has been developed considering the effect of corrosion on the steel parts of the grouted joints, along with the consideration of stiffness degradation of the concrete structure and the reliability of the joint under fatigue. One type of grouted joint connection is considered: the conventional cylindrical joint with shear keys. Fully coupled load simulations are made to determine the fatigue resistance and ultimate load resistance of the joint.
    Original languageEnglish
    Title of host publication37th International Conference on Ocean, Offshore & Arctic Engineering
    VolumeVolume 1: Offshore Technology
    PublisherAmerican Society of Mechanical Engineers
    Publication date2018
    PagesV001T01A011
    Article numberOMAE2018-77628
    ISBN (Electronic) 978-0-7918-5120-3
    DOIs
    Publication statusPublished - 2018
    Event37th International Conference on Ocean, Offshore and Arctic Engineering - Madrid, Spain
    Duration: 17 Jun 201822 Jun 2018

    Conference

    Conference37th International Conference on Ocean, Offshore and Arctic Engineering
    Country/TerritorySpain
    CityMadrid
    Period17/06/201822/06/2018

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