Research of the dynamic behavior of long span suspension bridges under static wind load

The dynamic behavior of long span suspension bridge is the key to the research of its windinduced vibration and seismic response. Since suspension bridge is a type of geometrical non\|linear structure,its dynamic behavior is closely related to the inner force state.The static wind load would thoroughly change the inner force state of the structure, and consequently change the dynamic behavior.In this paper we explore the influence on the long span suspension bridge by static wind load and put forward our calculation method of the dynamic behavior of long span suspension bridge under static wind load.