| Title |
Comparison of Design Strands for Safety Factor of Offshore Wind Turbine Foundation |
| Authors |
장화섭(Jang, Hwa Sup) ; 김호선(Kim, Ho Sun) ; 이경우(Lee, Kyoung Woo) ; 김만응(Kim, Mann Eung) |
| DOI |
https://doi.org/10.12652/Ksce.2012.32.2B.149 |
| Keywords |
해상풍력;기초;설계기준;안전율 offshore wind turbine;foundation;design standard;safety factor |
| Abstract |
This study is carried out to analyze the design method and safety rate degree for IEC 61400-3, DNV-OS-J101, GL Wind, EUROCODE, AASHTO and domestic design standard used for offshore wind turbine foundation design. The findings will provide a design parameter for domestic offshore wind turbine foundation design. The design of the steel Support Structure of an offshore wind turbine can be based on either the Allowable Stress Design(ASD) approach or the Load and Resistance Factor Design(LRFD) approach. The design principles with the use of LRFD method are described with various limit states. A limit state is a condition beyond which a structure or part of a structure exceeds a specified design requirement. Design by the LRFD method is a design method by which the target component safety level is obtained by applying load and resistance factors to characteristic reference values of loads (load effects)and structural resistance. When the strength design of the steel Support Structure is based on the ASD approach, the design acceptance criteria are to be expressed in terms of appropriate basic allowable stresses in accordance with the requirements specified. After comparison an economics domestic offshore wind turbine foundation standard will be developed. |