大跨度人行桥横向振动研究现状及展望

随着人行桥跨度的不断增大,轻质高强材料的运用,以及城市景观方面的追求,现代人行桥越来越朝着轻柔的方向发展。基于现有大跨度人行桥中不断出现的横向振动问题,该文对人行桥的行人荷载特性、横向振动理论以及振动控制方法进行了讨论,提出了人行桥横向振动研究和设计中存在的缺陷和不足,以及当前迫切需要研究的内容与方向。

Study Status and Prospect of Lateral Vibration of Long-span Footbridges

With the continuous increment of the footbridge span and the application of light and high-strength materials as well as the demand in the aspect of urban landscape,the modern footbridges tend to the gentle direction.Based on the lateral vibration problem continuously arisen in the existing long-span footbridges,the article discusses the pedestrian load characteristic,lateral vibration theory and vibration control method of the footbridge,and puts forward the shortcomings existing in the study and design of footbridge lateral vibration,and the contents and orientation urgently required to study now.