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Response of A 850 KW Wind Turbine Including Soil-Structure Interaction During Seismic Excitation

Conference paper
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Part of the Sustainable Civil Infrastructures book series (SUCI)

Abstract

On-shore wind turbines are typically founded on shallow gravity-based foundations that are designed to transmit vertical and lateral loads. Improved understanding of the foundation, as well as the over-all system behavior will lead to safe and economical designs. In this study, experimental results of a 55 m in-service Gamesa G52/850 wind turbine tower are employed to calibrate a three-dimensional finite element model. The response of a G52/850 wind turbine founded on shallow foundations and subjected to seismic excitation is studied with due consideration of the role of soil-structure interaction. The numerical model accounts for the soil-structure interaction via a pressure dependent multi-yield surface soil constitutive model. The calibrated FE model is then used to investigate the response of the wind turbine under earthquake-like excitation. The fundamental mode shape, the dynamic response as well as the soil-structure interaction effect are reported and evaluated. The investigation provides a valuable insight into the extend that soil-structure interaction influences the behavior of the wind turbine tower under seismic excitation.

Keywords

Wind Turbine Tower Seismic Excitation Shallow Foundation Soil-foundation-structure Interaction (SFSI) Longer Natural Period 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgement

The authors would like to express their gratitude to all the organizations, corporations, and individuals who contributed to this investigation. The research is funded by the US-Egypt Cooperative Research Project, entitled: “Seismic Risk Assessment of Wind Turbine Towers in Zafarana Wind Farm, Egypt” (NSF grant No. OISE 1445712).

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of Structural EngineeringUC San DiegoSan DiegoUSA
  2. 2.Structures and Steel Construction DepartmentHBNRCGizaEgypt
  3. 3.Head of Egyptian National Seismology NetworkNRIAGHelwanEgypt
  4. 4.President of Housing and Building National Research CenterGizaEgypt

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