Seismic Analysis for Multi-pile Concrete Foundationin 5MW Class Offshore Wind Turbine

Kim Woo Seok; Jeong Yuseok; Kim Kidu; Kim Kyeongjin; Lee Jae Ha

doi:10.7734/COSEIK.2016.29.3.209

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2016 Vol.29, Issue 3 Next Page

Seismic Analysis for Multi-pile Concrete Foundationin 5MW Class Offshore Wind Turbine 5MW 해상풍력타워를 위한 콘크리트 지지구조물의 내진해석

2016. pp. 209-218

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Abstract

Recently, Wind-turbine electronic generator become popular. Wind-Turbine is free to cost for purchase and noise problem. For this reason, trend is shifting from Wind-turbine on land to offshore. Research and Development for offshore Wind-turbine has been conducted by various research institution. However, There is no solid design code for offshore Wind-turbine even in domestic as well as foreign. In this paper, conduct seismic analysis and compare results using design codes Korea Bridge Design Codes, Korea Harbor and Marina Design Codes, and DNV OS. Time-History analysis conducted for checking time dependent effect. The Added-Mass Method applied to consider water-structure effects and compared for w/ water and w/o water condition.

최근 신재생 에너지 중 하나인 풍력발전에 대한 관심이 증가하고 있다. 풍력발전은 토지구입비, 소음문제에 자유로운 해상풍력으로 추세가 옮겨가고 있으며 이를 위한 연구개발이 전 세계적으로 활발히 이루어지고 있다. 그러나 해상에 위치한 풍력발전을 위한 설계기준은 국내, 국외 모두 없는 실정이다. 이 점을 고려하여 국내, 국외의 구조설계기준인 도로교 설계기준, 항만 및 어항 설계기준, DNV OS를 참고하여 다중 파일기초 콘크리트 지지구조물(MCF)의 내진해석을 수행하여 결과를 비교하였다. 또한 시간에 의한 효과를 확인하기 위하여 시간이력 해석 또한 수행되었다. 부가질량법(Added-mass method)을 사용하여 물과 구조의 상호작용을 고려하였고 물의 유무에 따라 구조물의 반응을 비교하였다.

Keywords

wind-turbine, seismic, response spectrum, time-history analysis, added-mass method

풍력발전, 내진해석, 응답 스펙트럼, 시간이력 해석, 부가질량법

References

J.H., Lee, S.B., Lee and J.K., Kim, 2012. Earthquake Response Analysis of an Offshore Wind Turbine Considering Fluid-Structure-Soil Interaction. J. Earthq. Eng. Soc. Korea, 16, pp.1-12.

10.5000/EESK.2012.16.3.001

Kim J.-S. Song C.Y. Lee D.Y. 2012Estimation of Hydrodynamic on Fixed Offshore Wind Turbine Substructure Considering Flexible Effect Autumn Conference of The Korean Society for Marine Environment and Energy in Autumn of 2012The Korean Society for Marine Environment and Energy385389

H.G., Kim, B.J., Kim and K.D., Kim, 2013. New Development of Hybrid Concrete Support Structure with Driven Piles for Offshore Wind Turbines. J. Korean Soc. Steel Construct, 25, pp.307-320.

10.7781/kjoss.2013.25.3.307

Ministry of Land,2012Transport and Maritime Affaires of South KoreaKorea Bridge Design Code (Limit State Design)

Ministry of Maritime Affairs and Fisheries2005Harbor and Marina Design Code

Anil K. C. 2004Dynamics of Structures 2th EditionPearson Educations.

DNV2012BOERE: Comparison of API, ISO, and NORSOK Offshore Structural Standards

Jonkman J. Butterfield S. Musial W. Scott G. 2009Definition of a 5-MW Reference Wind Turbine for Offshore System DevelopmentNational Renewable Energy LaboratoryNREL/TP-500-38060.

10.2172/947422

H., Micheal, M., Thomas and K., Gerad, 1997. Modal Analysis of an Existing Offshore Platform. Eng. Struct., 19, pp.487-498.

10.1016/S0141-0296(96)00102-2

MIDAS Information Technology2012MIDAS/ CIVIL 2012 Analysis Reference

Vries de W.E. 2007Upwind WP4 D4.2.1 Assessment of Bottom-mounted Support Structure TypesDeliverable report, Project UpWind, Riso National Laboratory-DTUDenmark

W, Yang and Q., Li, 2013. A New Added Mass Method for Fluid-Structure Interaction Analysis of Deep-water Bridge. KSCE J. Civil Eng., 17, pp.1413-1424.

10.1007/s12205-013-0134-2

Information

Publisher :Computational Structural Engineering Institute of Korea
Publisher(Ko) :한국전산구조공학회
Journal Title :Journal of the Computational Structural Engineering Institute of Korea
Journal Title(Ko) :한국전산구조공학회 논문집
Volume : 29
No :3
Pages :209-218
Received Date : 2015-10-13
Revised Date : 2016-01-08
Accepted Date : 2016-02-22
DOI :https://doi.org/10.7734/COSEIK.2016.29.3.209

Journal of the Computational Structural Engineering Institute of Korea ISSN:1229-3059(Print) 2287-2302(Online) 한국전산구조공학회 논문집

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