大跨度高速铁路桥梁健康监测系统研发

摘要

为确保高速列车行车舒适性、平稳性和安全性，有必要实时监测高速铁路桥梁在各种激励下的变形与动力响应。然而，相对于公路桥梁，高速铁路桥梁存在天窗时间短、全封闭式运营等特点，因此为高速铁路桥梁建立健康监测必须结合其自身特点，保证长期无人照料下系统自动采集、传输与存储。以南广铁路西江特大桥为工程背景，开发了一套基于云计算的 DASP －MTS 在线健康监测系统，利用3G 无线网络将实时数据上传至云端服务器；同时 DASP －MTS 采用 Brower／Serv-er 工作方式，使用过程中无需安装任何软件，解决了远程监控的难题；用户可在任意场所实时掌控系统中的各种监测量。研究成果可为同类型高速铁路桥梁的健康监测系统设计提供参考。%In order to ensure the comfort,stability and security of train,it is necessary to monitor the high -speed railways bridges of deformation and dynamic response under various incentives.However,in comparison with highway bridges,the high -speed railway line is fully isolated during operation,and the health monitoring system for high -speed railway bridges must be able to collect,save and transmit monitoring data automatically. Based on Nanning -Guangzhou railway Xijiang x -arch bridge as engineering background,the paper developed a DASP -MTS online health monitoring system by cloud computing.3G wireless network was utilized to transfer real -time monitoring data to cloud server.This monitoring system works in a browser/server frame,and no soft-ware is needed to be installed during the monitoring.This monitoring system provides an easy method for long -distance remote monitoring.The users can get real -time data from this monitoring system at any location.The present system provides a reference for the health monitoring system for other similar type of high -speed railway bridges.