|
Title |
Design of Vertically Adjustable Transition Piece of Concrete Gravity Based Substructure for Offshore Wind Turbine
|
|
Authors |
심운보(WunBo Shim) ; 안진영(Jin-Young Ahn) ; 곽동우(Dong-Woo Kwak) ; 배경태(Kyung-Tae Bae) ; 지광습(Goangseup Zi) |
|
DOI |
https://doi.org/10.11112/jksmi.2018.22.4.042 |
|
Keywords |
해상풍력 ; 연결부 설계안 ; 콘크리트 중력식 지지구조물 ; 수직도 조정 ; 유한요소해석 Offshore wind turbine ; Design of T.P. ; Concrete G.B.S. ; Vertically adjustable ; F.E.A. |
|
Abstract |
Verticality problem during the installation process in offshore wind turbine substructures could degrade the safety of the whole structures. Therefore, in this paper, the design of vertically adjustable transition piece(T.P.), using a PS anchor and grout of anchor socket in concrete gravity based substructure(G.B.S.), was proposed. T.P. was designed for 5MW offshore wind trubine and can adjust up to 0.5° in verticality, occurred during installation. The design plan for each members and design procedure for T.P. was proposed. Then based on the proposed design, actual design targeting sea of Jeju-island was carried out. Finally, by use of non-linear 3D Finite Element Analysis(F.E.A.), evaluation of design was performed. As a result of evaluation, by checking load transfer mechanism and stress of T.P, proposed design was considered safe up to 0.5° of adjustment.
|