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http://dx.doi.org/10.12652/Ksce.2012.32.2B.149

Comparison of Design Strands for Safety Factor of Offshore Wind Turbine Foundation  

Jang, Hwa Sup ((사)한국선급 녹색산업기술원)
Kim, Ho Sun ((사)한국선급 녹색산업기술원)
Lee, Kyoung Woo ((사)한국선급 녹색산업기술원)
Kim, Mann Eung ((사)한국선급 신성장산업본부)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.32, no.2B, 2012 , pp. 149-152 More about this Journal
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.
Keywords
offshore wind turbine; foundation; design standard; safety factor;
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