Response of a stiff monopile for a long-term cyclic loading

Aleksandra Lada, Szymon Gres, Giulio Nicolai, Lars Bo Ibsen

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In the Geotechnical Laboratory at Aalborg University a number of small scale tests have been performed to analyze the behavior of a rigid monopile subjected to a long-term cycliclateral loading. Only a dense state of sand is considered. A cyclic loads cause the permanent displacement of soil and rotation of a pile, effecting in the accumulated rotation and the change in soil-pile stiffness. These aspects, as poorly accounted in current standards, require thorough analysis. The design methods and a current state of art in cyclic loading field is discussed. One of the aims of the article is to validate the method established by LeBlanc (2010) in order to confirm its reliability. In addition, the results of performed tests are presented to obtain the further conclusion on the cyclic behavior of monopiles.
Original languageEnglish
Place of PublicationAalborg
PublisherDepartment of Civil Engineering, Aalborg University
Number of pages18
Publication statusPublished - Jun 2014
SeriesDCE Technical Memorandum

Bibliographical note

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  • Cyclic loads
  • cyclic loading


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