Investigation on cyclic response of suction bucket foundation supporting offshore wind turbine

被引：0
|
作者：
He B. [1 ]
Luo J. [1 ]
Li W. [1 ]
Wang H. [2 ,3 ]
Wang L. [2 ,3 ]
Hong Y. [2 ,3 ]
机构：
[1] Power China Huadong Engineering Limited Corporation, Hangzhou
[2] Key Laboratory of Offshore Geotechnics and Material of Zhejiang Province, Hangzhou
[3] College of Civil Engineering and Architecture, Zhejiang University, Hangzhou
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2021年 / 42卷 / 09期
关键词：
Cyclic response; Damping; Deflection; Offshore wind turbines; Sand; Stiffness; Suction bucket foundations;
D O I：
10.19912/j.0254-0096.tynxb.2019-0950
中图分类号：
学科分类号：
摘要：
This study performed a series of centrifuge tests in the medium dense sand to systematically study the cyclic response of the bucket foundation. It was found under cyclic loading, the deflection of monopod bucket foundation keeps accumulating with increase of loading cycles. While the unloading stiffness decrease with loading amplitude and increase with loading cycle, the damping ratio decrease with loading cycles by a power function. The tripod bucket foundation exhibited a "self-healing" response under cyclic loading, resulting in little deflection accumulation. Due to the "self-healing" response, the unloading stiffness first increased then decreased with loading cycles, while the damping ratio first decreased then increased with loading cycles. © 2021, Solar Energy Periodical Office Co., Ltd. All right reserved.
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页码：332 / 337
页数：5
相关论文
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