bridges;  wind loads;  flutter;  segmental models;  Wind tunnel testing

The bridge should have the ability to resist the action of wind, the role of wind on the bridge is not simply the static effect of the average wind, especially the long-span bridge, its flexibility is large, the design must consider the flutter, jitter, vortex vibration and other aerodynamic problems. Determining the wind load and wind resistance performance of bridges through wind tunnel model tests is the main means to study the wind resistance of long-span flexible bridges. The wind tunnel test mainly includes bridge segment model static test, segment model dynamic test, full bridge aeroelastic model test and other aspects.