大型桥梁结构智能健康监测系统集成技术研究

A study on system integration technique of intelligent monitoring systems for soundness of long-span bridges

首先分析研究了桥梁健康监测系统的各个子系统的功能、特点、实现方法与硬软件系统,研究了完成桥梁健康监测任务对各个子系统协同工作的要求。提出了以LabW indows/LabVIEW为桥梁健康监测系统的核心软件,由它“指挥”、调用和驱动各个子系统的运行和数据的交互与通讯;以数据管理子系统的数据库作为桥梁健康监测系统的中心数据库,它不仅存储桥梁结构及其监测数据的全部信息,同时所有的数据交互均通过该数据库完成。建议采用B rower/Server系统模式将桥梁结构健康监测的各子系统相互结合,建立基于网络平台的开放式的实时在线智能健康监测系统。最后,为一座实际的三塔斜拉桥集成了一套健康监测系统。

This paper analyzed all the subsystems in their functions, characteristics, implementations, and their hardware and software. A study was made on the requirement of concerted application of these subsystems for the soundness monitoring of long-span bridges. It was suggested that LabWindows/Lab VIEW is to be used as the main system to control the running of the subsystems and the interchanging of information among them. The database of a data menagement system is used as the central database, which stores not only the information of the bridge structure, but also the monitoring information. It was suggested to use Brower/Server system to connect all the subsystems, and an open, real time and online soundness monitoring system based on the network platform can be formed. Finally, a soundness monitoring system for a three-tower cable-stayed bridge was cited as an example.