Settlement analysis of wind turbines

G. Buscarnera*, R. Nova, M. Vecchiotti, C. Tamagnini, D. Salciarini

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

In this paper, the soil-foundation-structure interaction processes due to wind loading of a wind turbine founded on a circular raft are modelled by means of the FE method. The cyclic/dynamic response of the soil-foundation system is assumed to be fully described by a set of uncoupled viscous dampers and a nonlinear, inelastic macroelementwhich links the external loads and moment acting on the foundation with its displacements and rotation. The constitutive equations of the macroelement is formulated within the framework of the theory of strain hardening elastoplasticity.To account for cyclic loading effects, it is assumed that irreversible displacement increments may occur even for loading paths contained within a conveniently defined state boundary surface.The corresponding flow rule and hardening law can be formulated by means of a suitable mapping rule, establishing a correspondence between the current loading state and a uniquely defined image state on the state boundary surface. By means of the macroelement approach, it is possible to couple in a simple and efficient way the dynamic behaviour of the structure to the foundation movements. Settlement and rotation of the structure can then be predicted for any convenient number of cycles.

Original languageEnglish (US)
Title of host publicationSoil-Foundation-Structure Interaction - Selected Papers from the International Workshop on Soil-Foundation-Structure Interaction, SFSI 09
Pages163-170
Number of pages8
StatePublished - Dec 1 2010
EventInternational Workshop on Soil-Foundation-Structure Interaction, SFSI 09 - Auckland, New Zealand
Duration: Nov 26 2009Nov 27 2009

Other

OtherInternational Workshop on Soil-Foundation-Structure Interaction, SFSI 09
CountryNew Zealand
CityAuckland
Period11/26/0911/27/09

ASJC Scopus subject areas

  • Soil Science
  • Building and Construction

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    Buscarnera, G., Nova, R., Vecchiotti, M., Tamagnini, C., & Salciarini, D. (2010). Settlement analysis of wind turbines. In Soil-Foundation-Structure Interaction - Selected Papers from the International Workshop on Soil-Foundation-Structure Interaction, SFSI 09 (pp. 163-170)