摘要
首先根据预应力钢-混凝土混合塔架的特点,建立某超高风电塔架有限元数值模型,并对该模型进行受力和模态分析。分析结果表明该风电塔架固有频率避开了1P和3P频率,产生共振的可能性较小;在预应力的作用下混凝土塔段全截面受压,塔架稳定性良好。
The finite element numerical model of a super high wind power tower was set up based on the characteristics of the prestressed steel concrete mixed tower,and the model was analyzed by force and modal.The analysis results show that the natural frequency of the wind power tower avoids the frequency of 1P and 3P,and the possibility of producing resonance is smaller.Under the action of prestress,the whole section of the concrete tower section is subjected to full section compression,and the stability of the tower is good.
作者
王长军
李鹤飞
胡邵凯
许丹丹
王佳欣
Wang Changjun;Li Hefei;Hu Shaokai;Xu Dandan;Wang Jiaxin(Beijing Building Research Institute Co.,Ltd.of CSCEC,Beijing 100076,China;China University of Mining of TechnologyBeijing,Beijing 100083,China)
出处
《建筑结构》
CSCD
北大核心
2019年第A01期955-958,共4页
Building Structure
基金
中建一局课题项目:预应力装配式混凝土-钢混合结构超高风电塔架设计施工一体化技术研究(课题编号:KJYF-2017-17)
关键词
预应力钢-混凝土
风电塔架
数值模型
pre-stressed concrete-steel
wind turbine tower
numerical model
