常用跨度铁路桥梁运行状态分布式监测与预警技术  

Distributed Running State Monitoring and Pre-Warning of Common Span Railway Bridges

作　　者：赵维刚[1] 王新敏[1] 杜彦良 李云栋[2] 

机构地区：[1]石家庄铁道大学河北省大型结构健康诊断与控制重点实验室,石家庄050043 [2]北方工业大学信息工程学院,北京100041

出　　处：《上海交通大学学报》2015年第7期1046-1051,共6页Journal of Shanghai Jiaotong University

基　　金：国家科技支撑计划(2012BAG05B01);铁道部重大科技研究计划(2013G04-A-1;2012G011-A)资助项目

摘　　要：针对铁路活载作用下冲击剧烈、环境恶劣、量大面广等特性,研究面向常用跨度铁路桥梁监测的分布式无线监测系统,开发了嵌入式双核数字信号处理器(DSP)智能采集处理终端,构建了以智能终端为基础的铁路桥梁运行状态实时监测系统,并基于单体梁跨监测数据统计分析和既有规范形成参量的多级束界,实现实时分级预警预报,在大秦线桥梁实时监测中应用效果良好.This paper proposed and developed an efficient and reliable distributed wireless intelligent bridge monitoring system for the monitoring of common-span and wild distribution bridges. This system is con- sisted of a sensor, an acquisition node, a gathering controller and a central sever. It presented a new real- time early-warning method and the parameters based on both the monitoring data and existing test specifi- cation for railway bridge to realize a graded early warning of bridge running state. The proposed monitoring and pre-warning system is verified in the real-time monitoring of Daqin Railway bridge.

关 键 词：铁路桥梁 分布系统 嵌入式系统 状态预警 大秦铁路 

分 类 号：U24[交通运输工程—道路与铁道工程]