登机桥在人群载荷下的动力特性

Dynamic Characteristics of Boarding Bridge Under Crowd Loads

以45 m登机桥为研究对象,基于瞬态动力分析理论,运用有限元法建立了桥体主结构的瞬态振动模型,得到了登机桥在人群载荷下的动力响应,并针对计算结果采用调频质量阻尼器(TMD)进行减振处理。该方法可作为分析其他登机桥动力特性的参考。

Taking a 45 m boarding bridge as the research object, based on the transient dynamic analysis theory, the transient vibration model is established. Then, the dynamic response of main structure for the bridge is obtained under crowd loads. Finally, the vibration reduction with tuned mass damper （TMD） is processed in allusion to the calculation results. The method can provide the reference for analyzing the dynamic characteristics of other boarding bridges.