管道悬索桥静气动性能研究  

Research of Aerodynamic Performance of Pipeline Suspension Bridges

作　　者：周傲秋 宋洪芳 孙传智[1] ZHOU Aoqiu;SONG Hongfang;SUN Chuanzhi(School of Civil Engineering and Architecture, Suqian University, Suqian 223800, China;Yingkou Marine Monitoring and Early Warning Center, Yingkou 115007, China)

机构地区：[1]宿迁学院建筑工程学院,宿迁223800 [2]营口市海洋预警监测中心,营口115007

出　　处：《交通科技》2022年第3期54-58,共5页Transportation Science & Technology

基　　金：国家自然科学基金(51678115);宿迁市自然基金(K202012);2021年宿迁学院工程结构抗震技术科研创新团队(2021TD04)资助。

摘　　要：管道悬索桥结构长细比大、刚度低,对风荷载极为敏感。文中以某管道悬索桥为研究对象,通过风洞测力试验,研究管道直径、管道间距、管道数量及雷诺数对断面静三分力系数的影响。结果表明,管道直径对断面静三分力系数有较大影响;断面静三分力系数随管道数量增加而增大;管道横向间距对静三分力系数的影响可忽略不计;小直径管道断面雷诺数效应更明显。The pipeline suspension bridge has a large slenderness ratio,low stiffness,and is extremely sensitive to wind loads.Taking a pipeline suspension bridge as the research object,the influence of pipeline diameter,pipeline spacing,number of pipelines and Reynolds number on the aerodynamic force coefficients of the section is studied by the wind tunnel test.The research results show that the diameter of the pipeline has a great influence on the aerodynamic force coefficients of the section,the static aerodynamic force coefficients of the section increases with the increase of the number of pipelines,and the influence of the lateral spacing of the pipelines on the static aerodynamic force coefficients is negligible.In addition,the Reynolds number effect of the sections equipped with small diameter pipelines is more obvious.

关 键 词：管道悬索桥 风洞试验 静三分力系数 雷诺数效应 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]