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http://dx.doi.org/10.12652/Ksce.2012.32.2C.061

Behavior Analysis by Verticality Error of Monopile Foundation for 5MW Offshore Wind Turbine  

Jang, Hwa Sup ((사)한국선급 녹색산업기술원)
Kim, Ho Sun ((사)한국선급 녹색산업기술원)
Eum, Hark Jin ((사)한국선급 녹색산업기술원)
Kim, Mann Eung ((사)한국선급 신성장산업본부)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.32, no.2C, 2012 , pp. 61-68 More about this Journal
Abstract
In general, verticality error necessarily occurs in marine pile foundation due to construction error or marine environmental effects. In marine structure, design by vertical load rather than horizontal load is dominant, but in the offshore wind turbine foundation, horizontal load is dominant. As the structure type that has dynamic movement by blade rotation, verticality error may have structurally significant effects. In this study, structural response feature of foundation and ground were analyzed according to verticality error of monopile foundation of 5MW offshore wind turbine. Marine environmental load was calculated per ISO standard and the margin of verticality error was calculated to be $L/{\infty}$(=0), L/300, L/200 and L/100. As a result of analysis, it was found that the maximum value of member force of the foundation with L/100 error increased about 7.2% compared to the monopile without verticality error.
Keywords
offshore wind turbine; monopile foundation; analysis model influence factor; verticality error;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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