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Dynamic stiffness and damping of foundations for jacket structures
Technical University of Denmark, Denmark.
Technical University of Denmark, Denmark.
Technical University of Denmark, Denmark.
2015 (English)In: The proceedings of the 6th International conference on earthquake geotechnical engineering, 2015Conference paper, Published paper (Refereed)
Resource type
Text
Abstract [en]

Foundation for offshore jacket structures may comprise of long floating piles. The dynamic response of floating piles to horizontal load is herein investigated. The analytical solution of horizontally vibrating end bearing piles by Novak & Nogami (1977) has been modified. At first the soil resistance as defined by Nogami & Novak (1977) is determined, considering 3D wave propagation within linear soil layer with hysteretic damping. Thereafter, the dynamic response of the pile is estimated assuming soil pressure equal to the soil resistance and imposing displacement compatibility. A parametric study clarifies the role of the parameters involved i.e. the depth of the soil layer, the pile diameter and the soil layer shear wave velocity. Results are presented in terms of dimensionless graphs which highlight the frequency dependency of the dynamic stiffness and damping.

Place, publisher, year, edition, pages
2015.
National Category
Construction Management
Research subject
Technology (byts ev till Engineering), Civil engineering
Identifiers
URN: urn:nbn:se:lnu:diva-48687OAI: oai:DiVA.org:lnu-48687DiVA: diva2:893420
Conference
6th International Conference on Earthquake Geotechnical Engineering 1-4 November 2015 Christchurch New Zealand
Available from: 2016-01-12 Created: 2016-01-12 Last updated: 2016-01-18Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf