东南大学学报（自然科学版）2026，Vol.56Issue(9)：1291-1297,7.DOI:10.3969/j.issn.1001-0505.2026.09.007
高层建筑顶部桅杆的气动力特性研究
Aerodynamic force characteristics of masts atop high-rise buildings
摘要
Abstract
To analyze the aerodynamic force characteristics of masts on top of high-rise buildings,wind tunnel test models were fabricated for three typical masts,including constant cross-section,variable cross-section,and those with attached auxiliary components.The force measurement test with a rigid model was conducted to investigate differences in aerodynamic force coefficients and power spectra among three structural mast con-figurations,while also examining the influence of turbulence.The results indicate that both aerodynamic forces and vortex-induced force peaks are significantly reduced for variable-section masts compared with constant-section masts.Adding auxiliary structures slightly increases the aerodynamic forces of masts,but fur-ther weakens vortex-induced force energy.The turbulence significantly increases the aerodynamic forces of masts but reduces the peak of vortex-induced force and broadens its bandwidth.Aerodynamic forces on masts are generally lower when airflow strikes building facades directly compared with oblique impacts.Further-more,the separation flow generated by headwinds against the building facade significantly suppresses regular vortex shedding from the main structure at the mast base.Changes in wind direction markedly affect the vortex shedding frequency of uniform flow around constant-section masts,but have a negligible impact on variable-section masts.关键词
高层建筑/桅杆/风洞试验/气动力/漩涡脱落Key words
high-rise building/masts/wind tunnel test/aerodynamic force/vortex shedding分类
建筑与水利引用本文复制引用
刘慕广,余友熙,吴世康,陶晋,谢壮宁,邵光辉,杨易..高层建筑顶部桅杆的气动力特性研究[J].东南大学学报（自然科学版）,2026,56(9):1291-1297,7.基金项目
广东省基础与应用基础研究基金资助项目(2024A1515011828) （2024A1515011828）
国家自然科学基金资助项目(52378514) （52378514）
亚热带建筑与城市科学国家重点实验室资助项目(2024ZB10) （2024ZB10）
广东省现代土木工程技术重点实验室资助项目(2021B1212040003). （2021B1212040003）
