西陵长江大桥全桥气动弹性模型风洞试验研究  

An Experimental Investigation of Xiling Changjiang Suspension Bridge Using Aeroelastic Models

作　　者：李会知[1] 陈忻[1] 李明水[1] 廖海黎[2] 

机构地区：[1]中国空气动力研究与发展中心,四川绵阳621000 [2]西南交通大学,成都610031

出　　处：《空气动力学学报》1997年第4期513-518,共6页Acta Aerodynamica Sinica

摘　　要：介绍了西陵长江大桥成桥状态和施工状态全桥气动弹性模型在均匀平滑流和湍流两种流场中的风洞试验，评估了西陵长江大桥颤振、抖振和涡激振动等风振特性，给出了颤振风速和抖振振幅。可供研究其它大跨度桥梁的风振特性参考。Flutter, buffeting and yortex-induced vibrati0n of Xiling Changjiang bridge were investigated in wind tunnel. The aeroelastic mod els of construction and application stage bridge were immerged in the smooth and turbulent flow respectively in the test. Flutter velocity and buffeting amplitude were presented. The results show that the flutter velocity is much higher than the design value of flow velocity and no vortex-induced vibration can be measured in the test.

关 键 词：颤振 抖振 涡激振动 气动弹性模型 桥梁 

分 类 号：U441.3[建筑科学—桥梁与隧道工程]