燕罗人行桥人致振动分析与控制研究

摘要:

鉴于我国现行的人行桥规范较为陈旧,对人行桥动力特性要求过于苛刻,不利于大跨径、纤柔的人行桥动力设计,本文结合国内外学者的研究以及国外现行的人行桥设计指南,以深圳市燕罗人行桥工程为背景,对大跨径人行桥的振动控制设计方法进行研究并实践。实践结果显示,调谐质量阻尼器(下文称TMD)的布置,可以有效降低大跨度人行桥人致振动响应,提高行人舒适度。

Abstract:

In view of my country's current outdated pedestrian bridge specifications，which are too strait to dynamic characteristics of pedestrian bridges and not conducive to the dynamic design of long-span and flexible pedestrian bridges. As the background of the Yanluo Pedestrian Bridge in Shenzhen and the research by domestic and foreign scholars，the design method of vibration control of long-span pedestrian bridges is researched and practiced. The practical results show that the arrangement of tuned mass dampers (hereinafter referred to as TMD) can effectively reduce the pedestrian-induced vibration response of long-span pedestrian bridges and improve pedestrian comfort.