西安理工大学学报2024，Vol.40Issue(1)：143-150,8.DOI:10.19322/j.cnki.issn.1006-4710.2024.01.014
矩形钢管混凝土束剪力墙风机塔筒L型连接节点力学性能研究
Study on mechanical properties of L-shaped connection of fan tower with concrete-filled rectangular steel tubular beam shear wall
摘要
Abstract
In order to address the current structural development of wind turbine towers by the structural height and installation efficiency,this paper proposes an L-shaped bolted rectangular steel tube concrete bundle shear wall wind turbine tower and investigates the mechanical proper-ties of the key bolted connection areas.Also,the performance of a single rectangular steel tube bundle shear wall is analyzed by means of finite element modelling under out-of-plane and in-plane loading,withrelevant design recommendations given.The results show that the damage modes for the tower bolt connection are bending deformation of the connection plate and bolt pull-off.The initial in-plane stiffness and load carrying capacity of the single shear wall are significantly higher than those of the out-plane.Taking into account the efficiency of the shear wall mechanical properties and the stress distribution of the shear wall components,it is recommended that when the bolt diameter be 20 mm,that the thickness of the connection plate be not greater than the bolt diameter.When the connection plate thickness is 20 mm,it is recommended that the bolt di-ameter be 1.2 times what it is.关键词
螺栓连接/L型节点/风机塔筒/有限元Key words
bolted connection/L-shaped joint/wind turbine towers/finite element分类
建筑与水利引用本文复制引用
陈刚,郑东东,郭宏超..矩形钢管混凝土束剪力墙风机塔筒L型连接节点力学性能研究[J].西安理工大学学报,2024,40(1):143-150,8.基金项目
国家自然科学基金资助项目(51978571) （51978571）
陕西省杰出青年科学基金资助项目(2021JC-41) （2021JC-41）
陕西省教育厅重点实验室科研项目(18JS072) （18JS072）
