南溪长江大桥施工猫道静风稳定性研究  

Research on Aerostatic Stability of Construction Catwalks in Nanxi Yangtze River Bridge

作　　者：邵春生[1] 王东绪[2] 卢伟[1] 李永乐[2] 

机构地区：[1]四川公路桥梁建设集团有限公司,成都610041 [2]西南交通大学土木学院桥梁系,成都610031

出　　处：《公路交通技术》2013年第3期105-109,共5页Technology of Highway and Transport

摘　　要：为研究南溪长江大桥施工猫道的静风稳定性,建立有限元模型计算猫道固有频率,并通过猫道节段模型风洞试验测定气动力系数。在此基础上,分别采用二维线性和三维非线性方法分析猫道整体和局部静风稳定性。结果表明,猫道的静风稳定性满足要求。In order to investigate aerostatic stability of construction catwalks in Nanxi Yangtze River Bridge,this paper establishes a finite element model to calculate inherent frequency of catwalks and measures dynamic coefficient via wind tunnel test of sectional models of catwalks.On this basis,the paper analyzes overall and local aerostatic stability of catwalks by means of 2D linear and 3D non-linear methods,respectively.The results show that aerostatic stability of catwalks satisfies the requirements.

关 键 词：悬索桥 施工猫道 风洞试验 静风稳定性 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]