同济大学学报（自然科学版）2026，Vol.54Issue(9)：1273-1280,8.DOI:10.11908/j.issn.0253-374x.25175
闭口箱梁水平分流板颤振控制效果与机理
Flutter Control Effect and Mechanism of Horizontal Splitter Plates for Closed-box Girders
摘要
Abstract
Based on a closed-box girder design for a sea-crossing bridge,five horizontal splitter plates with different widths were designed,and section model vibration tests were conducted.The influence mechanism of fixed horizontal splitter plates on the flutter performance of the closed-box girder was analyzed.A movable horizontal splitter plate was also designed,and its control effect and mechanism were investigated through wind tunnel tests.The results indicate that fixed horizontal splitter plates with different widths improve the section flutter performance at 0° and+3° attack angles,whereas they deteriorate the flutter performance to varying degrees at a −3° attack angle.Compared with the fixed horizontal splitter plates,the movable horizontal splitter plate further improves the overall section flutter performance.At a+3° attack angle,the flutter performance is improved by more than 20%,and the critical attack angle for flutter is simultaneously shifted from+3° to − 3°.The section flutter performance is jointly influenced by the aerodynamic shape alteration induced by the torsional static wind displacement of the windward plate and the tuned-mass-like effect of the leeward plate motion on the vibration of the main girder.关键词
闭口箱梁/水平分流板/颤振控制/颤振机理Key words
closed-box girder/horizontal splitter plate/flutter control/flutter mechanism分类
建筑与水利引用本文复制引用
杨詠昕,杨益良,毛汇,周锐..闭口箱梁水平分流板颤振控制效果与机理[J].同济大学学报（自然科学版）,2026,54(9):1273-1280,8.基金项目
国家自然科学基金(52178503、52578371、52278311) （52178503、52578371、52278311）
国家重点实验室自主课题(SLDRCE19-B-10) （SLDRCE19-B-10）
广东省杰出青年项目(2025B1515020002) （2025B1515020002）
