期刊文献+

榕江大桥涡激共振特性研究 被引量:1

Vortex-Induced Vibration characteristic research of Rongjiang River Bridge
下载PDF
导出
摘要 通过常规比例及大比例节段模型风洞试验,对榕江大桥钢箱梁断面的涡振特性进行了研究,并在此基础上分析了栏杆改形、风嘴改形以及两者的综合改形等三种断面优化措施的有效性,结果表明原始断面在+5°和+3°攻角情况下发生了超规范容许值的扭转涡激振动;在采用综合改进的断面优化措施后,±5°攻角范围内没有观察到明显的竖向及扭转涡激振动。 Large-scale and conventional-scale section models wind tunnel tests were carried out to investigate the aerodynamic and aeroelastic behaviors,especially the Vortex-Induced Vibration( VIV)performance of steel box girder of Rongjiang River Bridge. Moreover,the effect of vi-bration suppression of the different aerodynamic measures,including the modifications of railing,wind fairing and former two measures,were studied to optimize the steel box girder cross-section. The results showed that the flutter performance of original cross-section meet requirements, while the VIV was found with the attack angles of +5° and +3°. However,no VIV was found with the attack angles from -5° to +5° by modi-fication of both railing and wind fairing.
作者 王军
出处 《山西建筑》 2015年第24期168-169,共2页 Shanxi Architecture
关键词 节段模型 风洞试验 涡激共振 气动措施 section model wind tunnel test Vortex-Induced Vibration aerodynamic measures
  • 引文网络
  • 相关文献

参考文献5

二级参考文献40

共引文献62

同被引文献11

引证文献1

二级引证文献1

;
使用帮助 返回顶部