郑州黄河大桥远程振动监测系统研究

介绍郑州黄河大桥远程振动监测系统的设计方案、体系结构、总体目标、监测内容,以及系统的数据采集、数据查询及安全报警功能。运行结果表明:监测系统工作正常,性能稳定,监测数据结果可信,数据查询简单、方便;整个监测系统是柔性的、可变的,可远程设置系统的工作参数,能在一定程度上更改和扩展系统的监测内容和功能;可在线分析监测数据,远程诊断系统的工作状态,意外停机后可自动复位,实现了现场无人值守。监测系统投入运行以来,桥梁管理部门可随时了解和掌握全桥上行线各孔及下行线18孔桥梁跨中横向振动情况,发现问题可及时采取相应的技术措施和管理办法。目前,该系统正在为大桥的运营、管理和维护决策,为确保列车在桥上的行车安全和大桥本身的运营安全发挥着重要的作用。

Study on the Remote Vibration Monitoring System for the Zhengzhou Yellow River Bridge

The design plan,system structure,overall objective,monitoring projects,data acquisition,data quiries and alaming function of the remote vibration monitoring system for the Zhengzhou Yellow River Bridge are introduced.Operational results show that: The remote vibration monitoring system guarantees normal and stable performance,credible monitoring results and easy and convenient data querying;the whole monitoring system is made flexible and changeable so that the working parameters can be remotely set and the monitoring contents and functions can be changed and extended to a certain extent;the monitoring data can be analyzed online,the working conditions of the system can be remotely diagnosed,the system can be reset by itself when hanging up and nobody is needed to be on duty on site.Since the system was put into operation,the management department of the Bridge can see and control the lateral vibration at midspans of all girders on upline and 18 girders on downline at any time.Corresponding technical and managerial measures can be taken in time if any problems occur.Now,the system is playing an important role in decision-making of operation,management and maintenance of the Bridge,and it contributes a lot to ensuring the safety of the trains running on the Bridge and the structure of the Bridge itself.