水力发电2026，Vol.52Issue(9)：91-98,8.
基于Pushover方法的风电混合塔筒失效过程分析
Failure Process Analysis of Wind Turbine Hybrid Towers Using the Pushover Method
摘要
Abstract
To investigate the failure process of the concrete tower segment in prefabricated steel-concrete hybrid wind turbine towers under extreme loading conditions and to identify the governing influencing factors,a refined finite element model is developed and a series of pushover analyses are performed.The results indicate that the failure evolution of the tower exhibits pronounced stage characteristics.When the applied displacement reaches 32%of the total displacement,horizontal joint separation initiates at 59.5%of the hybrid tower height,and as the displacement increases to 68.6%of the total displacement and the separation area at this location expands to 50%,the tower reaches its maximum load-bearing capacity.When the displacement further increases to 94.4%of the total displacement,the structure enters an overturning stage triggered by tensile stiffness degradation,and once the volume of tensile stiffness with significant degradation reaches 0.35%of the segmental volume at the corresponding level,global instability of the tower occurs.Throughout the entire failure process,the staged development of tensile damage plays a dominant role.The results demonstrate that joint separation behavior and the accumulation of tensile damage are the key mechanisms governing the performance degradation of steel-concrete hybrid wind turbine towers,and optimizing joint configuration and enhancing tensile resistance design are therefore effective measures for improving the anti-overturning capacity of such structures.关键词
风电混合塔筒/静力推覆/有限元分析/失效过程分析/塔筒位移Key words
steel-concrete hybrid wind turbine tower/pushover analysis/finite element analysis/failure process analysis/tower displacement分类
信息技术与安全科学引用本文复制引用
丁力,刘哲锋,雷华山,王玉奎..基于Pushover方法的风电混合塔筒失效过程分析[J].水力发电,2026,52(9):91-98,8.基金项目
国家自然科学基金资助项目(51678072) （51678072）
湖南省教育厅优秀青年项目(24B0733) （24B0733）
