斜腹板倾角对流线型箱型结构涡振性能影响的数值研究  

Numerical Research on Influence of Inclined Web Angle on Vortex Vibration Performance of Streamlined Box Structure

作　　者：张亮亮 ZHANG Liangliang(Shanxi Transportation Survey&Design Institute Co.,Ltd.,Taiyuan,Shanxi 030032,China)

机构地区：[1]山西省交通规划勘察设计院有限公司,山西太原030032

出　　处：《山西交通科技》2023年第3期73-75,134,共4页Shanxi Science & Technology of Transportation

摘　　要：桥梁结构气动外形是影响桥梁结构涡激振动的重要因素。以某大桥流线型箱型断面为研究对象,通过数值模拟计算,研究了斜腹板倾角对流线型箱型断面涡激振动性能的影响,得出结论:流线型箱型结构发生涡振的风攻角以及风速锁定区间不受斜腹板倾角变化影响;最大竖向涡振振幅随斜腹板倾角的增大呈指数型增大。The aerodynamic configuration of the bridge is an important factor affecting the vortex-induced vibration of the bridge structure.Based on the streamlined box section of a bridge,by the numerical simulation calculation,this paper studied the influence of the inclined web angle on the vortex-induced vibration performance of the streamlined box section.In conclusion,the wind attack angle and wind speed locking interval of the vortex vibration that occurred on the streamlined box structure were not affected by the change in the inclined web angle.The maximum vertical vortex vibration amplitude increased exponentially with the increase of the inclined web angle.

关 键 词：斜腹板倾角 重叠网格 数值模拟 涡激振动 

分 类 号：U441.3[建筑科学—桥梁与隧道工程]