列车振动对斜拉桥最大悬臂状态影响分析  

Influence of Train Vibration on Maximum Cantilever State of Cable Stayed Bridge

作　　者：付睿 FU Rui(Tiezheng Testing Technology Co.,Ltd.,Jinan,Henan Province,250014 China)

机构地区：[1]铁正检测科技有限公司,山东济南250014

出　　处：《科技创新导报》2021年第12期69-72,共4页Science and Technology Innovation Herald

摘　　要：斜拉桥具有跨越能力大的优点,在转体施工需要跨越铁路线时有较多应用。但转体施工过程中受到诸多环境因素影响,如列车经过时引起的振动会影响斜拉桥整体稳定。本文结合斜拉桥转体施工工程实例,实地测量振动响应,建立Midas模型,对最大悬臂状态下斜拉桥进行计算分析,研究在列车振动作用下,转体斜拉桥的振动响应规律,希望对类似工程有一定的参考价值。Cable stayed bridges have the advantage of large crossing capacity,and it is widely used when the swivel construction needs to cross the railway line.But in the process of swivel construction,it is affected by many environmental factors,such as the vibration caused by the train passing,which will affect the overall stability of the cable-stayed bridge.In this paper,combined with the cable-stayed bridge swivel construction engineering example,field measurement of vibration response,the establishment of MIDAS model analysis,calculation and analysis of the cable-stayed bridge under the maximum cantilever state,study the vibration response law of the swivel cable-stayed bridge under the action of train vibration,hoping to have a certain reference value for similar projects.

关 键 词：斜拉桥 水平转体 列车振动 稳定性 姿态监控 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]