Earthquakes and Structures

  • 제13권1호
  • /
  • Pages.39-50
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  • 2017
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Influence of soil-structure interaction on seismic responses of offshore wind turbine considering earthquake incident angle

  • Sharmin, Faria (Department of Civil Engineering, Kunsan National University) ;
  • Hussan, Mosaruf (Department of Civil Engineering, Kunsan National University) ;
  • Kim, Dookie (Department of Civil Engineering, Kunsan National University) ;
  • Cho, Sung Gook (Innose Tech Company Limited)
  • 투고 : 2016.10.10
  • 심사 : 2017.07.20
  • 발행 : 2017.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

Displacement response and corresponding maximum response energy of structures are key parameters to assess the dynamic effect or even more destructive structural damage of the structures. By employing them, this research has compared the structural responses of jacket supported offshore wind turbine (OWT) subjected to seismic excitations apprehending earthquake incidence, when (a) soil-structure interaction (SSI) has been ignored and (b) SSI has been considered. The effect of earthquakes under arbitrary angle of excitation on the OWT has been investigated by means of the energy based wavelet transformation method. Displacement based fragility analysis is then utilized to convey the probability of exceedance of the OWT at different soil site conditions. The results show that the uncertainty arises due to multi-component seismic excitations along with the diminution trend of shear wave velocity of soil and it tends to reduce the efficiency of the OWT to stand against the ground motions.

키워드

과제정보

연구 과제 주관 기관 : Korea Institute of Energy Technology Evaluation and Planning (KETEP)

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