水力发电2024，Vol.50Issue(1)：82-89,102,9.
考虑外平台影响下海上风机单桩基础结构地震动力响应分析
Seismic Dynamic Response Analysis of Offshore Wind Turbine Single-pile Foundation Structure Considering the Influence of External Platform
侯法垒 1姚莫凡 2胡雨承 3张永 1赵杨1
作者信息
- 1. 山能新能源(东营)有限公司, 山东 东营 250014
- 2. 中国电建集团华东勘测设计研究院有限公司, 浙江 杭州 311100||浙江华东工程咨询有限公司, 浙江 杭州 311100
- 3. 水资源工程与调度全国重点实验室(武汉大学), 湖北 武汉 430072
- 折叠
摘要
Abstract
With the wide application of single-pile foundation for offshore wind turbines it is important to analyze the dynamic response of single-pile foundation and its affiliated structures under earthquake load.In this paper by using the ABAQUS finite element analysis software to establish the whole structure model of single pile-external platform and the viscoelastic boundary method to simulate the earthquake load the dynamic response of whole structure under earthquake is analyzed and the influences of external platform on the natural vibration characteristics and response of single pile are also explored.The results show that (a) under the earthquake load the maximum stress of overall single pile-external platform structure appears at the joints between the working platform and the supporting bars the maximum horizontal displacement appears at the working platform and the stress and displacement of the bracket are relatively smaller ;and (b) the external platform can slow down and increase the natural frequency of single-pile foundation reduce the fundamental frequency and slightly increase the stress of single-pile foundation but its influence on horizontal displacement is not significant.关键词
海上风机/单桩基础/外平台/地震/动力响应/有限元分析Key words
offshore wind turbine/single-pile foundation/external platform/earthquake/dynamic response/finite element analysis分类
建筑与水利引用本文复制引用
侯法垒,姚莫凡,胡雨承,张永,赵杨..考虑外平台影响下海上风机单桩基础结构地震动力响应分析[J].水力发电,2024,50(1):82-89,102,9.
