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Effect of foundation nonlinearity on modal properties of offshore towers

Journal Article · · Journal of Geotechnical Engineering
;  [1]
  1. Univ. of Western Ontario, London, Ontario (Canada)
An analysis of pile axial and lateral response to transient dynamic loading is presented allowing for nonlinear soil behavior, the discontinuity conditions at the pile-soil interface, and energy dissipation through radiation damping and soil hysteresis. In addition, the effect of neighboring piles is taken into account for piles in a group. This analysis is used to derive the stiffness of foundation piles of fixed offshore towers. The effect of foundation nonlinearity and pile-soil-pile interaction on the dynamic characteristics of the tower is investigated. It was found that the tower`s dynamic characteristics are greatly influenced by the foundation nonlinearity and the pile-soil-pile interaction.
OSTI ID:
116156
Journal Information:
Journal of Geotechnical Engineering, Journal Name: Journal of Geotechnical Engineering Journal Issue: 9 Vol. 121; ISSN 0733-9410; ISSN JGENDZ
Country of Publication:
United States
Language:
English

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