黏土中海上风力机桩-筒复合基础地震响应分析

张小玲; 李赟琪; 王丕光; 穆坤; 程星磊

doi:10.19912/j.0254-0096.tynxb.2023-0227

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太阳能学报 ›› 2024, Vol. 45 ›› Issue (2) : 189-197. DOI: 10.19912/j.0254-0096.tynxb.2023-0227

黏土中海上风力机桩-筒复合基础地震响应分析

张小玲¹, 李赟琪¹, 王丕光¹, 穆坤², 程星磊²

作者信息 +

SEISMIC RESPONSE ANALYSIS OF PILE-BUCKET COMPOSITE FOUNDATION FOR OFFSHORE WIND TURBINE IN CLAY

Zhang Xiaoling¹, Li Yunqi¹, Wang Piguang¹, Mu Kun², Cheng Xinglei²

Author information +

文章历史 +

摘要

参考NREL海上风力机结构参数,基于ABAQUS软件平台,建立黏土中海上风力机桩-筒复合基础的三维整体有限元模型;采用总应力形式的非线性运动硬化模型描述黏土的不排水动应力应变响应,通过编制Matlab程序实现随机风荷载及波浪荷载的模拟;开展地震及风、浪、流荷载共同作用下海上风力机桩-筒复合基础的时域整体动力响应分析,揭示桩-筒复合基础的承载机理,分析地震烈度、土体强度及基础尺寸对桩-筒复合基础动力响应的影响规律。

Abstract

Referring to the structural parameters of NREL offshore wind turbine, a three-dimensional finite element model of offshore wind turbine supported by pile-bucket composite foundation in clay is established based on ABAQUS software platform. The non-linear kinematic hardening model in the form of total stress is used to describe the undrained dynamic stress-strain response of clay. The random wind loads and wave loads are simulated by compiling MATLAB program. The time-domain overall dynamic response analysis of offshore wind turbine supported by pile-bucket composite foundation under earthquake, wind, wave and current loads is carried out, and then the bearing mechanism of pile-bucket composite foundation is revealed. The influence of seismic intensity, soil strength and foundation size on the dynamic response of pile-bucket composite foundation is analyzed. The research results can provide guidance for the seismic design of pile-bucket composite foundation for offshore wind turbine in clay.

导出引用

张小玲, 李赟琪, 王丕光, 穆坤, 程星磊. 黏土中海上风力机桩-筒复合基础地震响应分析[J]. 太阳能学报. 2024, 45(2): 189-197 https://doi.org/10.19912/j.0254-0096.tynxb.2023-0227

Zhang Xiaoling, Li Yunqi, Wang Piguang, Mu Kun, Cheng Xinglei. SEISMIC RESPONSE ANALYSIS OF PILE-BUCKET COMPOSITE FOUNDATION FOR OFFSHORE WIND TURBINE IN CLAY[J]. Acta Energiae Solaris Sinica. 2024, 45(2): 189-197 https://doi.org/10.19912/j.0254-0096.tynxb.2023-0227

中图分类号： TU470

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