| Title |
Behavior Analysis by Verticality Error of Monopile Foundation for 5MW Offshore Wind Turbine |
| Authors |
장화섭(Jang, Hwa Sup) ; 김호선(Kim, Ho Sun) ; 음학진(Eum, Hark Jin) ; 김만응(Kim, Mann Eung) |
| DOI |
https://doi.org/10.12652/Ksce.2012.32.2C.061 |
| Keywords |
해상풍력;모노파일 기초;해석요소망 영향인자;수직도 오차 offshore wind turbine;monopile foundation;analysis model influence factor;verticality error |
| 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. |