期刊文献+

下白石大桥健康监测系统的设计与研究 被引量:18

Design and Study of Structural Health Monitoring System of Xiabaishi Bridge
下载PDF
导出
摘要 以跨径布置为145 m+2×260 m+145 m的下白石连续刚构桥为工程背景,介绍该桥健康监测系统的总体目标、监测内容、仪器选择、测点布置、信号采集与传输和安全报警等。采集系统实现静力和动力数据综合采集与控制,包括加速度、动位移等动态特征及应变、温度、支座位移和线形等静态信息。星型传输系统可保证各个采集子站的独立性和抗干扰能力,并采用多模光纤和电话网络实现数据远距离传输、远程监控和现场无人值守。该健康监测系统工作正常、性能稳定、监测数据可信。通过对监测数据的初步分析,表明下白石大桥没有异常发生,目前桥梁基本处于安全状态。 A prestressed continuous rigid frame bridge with 145 m +2 × 260 m+145 m spans, the Xiabaishi Bridge, is selected as the sample of the required engineering background. Aspects of its health monitoring system are described, including the overall monitoring objective, measurement contents, monitoring instrument selection, monitoring points layout, data acquisition and long-distance transmission and safety alarming system and so on. Static and dynamic data acquisition is realized, namely, vibration characters such as acceleration and dynamic displacement and static information such as strain, temperature, displacement of supports and bridge line-type are syncretized and controlled. The star transmission structures syncretizeed in the monitoring system can make sure that each acquisition substation is independent and has strong anti-interference capability. The multi-molds optical fiber net and telephone net are used to carry out unattended long-distance transmission and long-distance supervisory control. The on-line monitoring system of the Xiabaishi Bridge has worked very well since it was opened. It demonstrates normal operation and stable performance and provides accurate and reliable monitoring data. The initial analysis indicates that no abnormality occur with the Xiabaishi Bridge, and the Bridge is safe at present.
出处 《铁道学报》 EI CAS CSCD 北大核心 2009年第5期65-71,共7页 Journal of the China Railway Society
基金 国家自然科学基金(50778044) 福建省高等学校新世纪优秀人才支持计划项目(TW2006-29) 福州大学科技发展基金项目(2006-XQ-29)
关键词 大跨度连续刚构桥 健康监测系统 传感器 数据采集和传输 安全预警 continuous rigid-frame bridge with long-span health monitoring system sensor data acquisition and transmission safety alarming
  • 相关文献

参考文献9

二级参考文献30

  • 1黄方林,王学敏,陈政清,曾储惠,何旭辉.大型桥梁健康监测研究进展[J].中国铁道科学,2005,26(2):1-7. 被引量:95
  • 2辛学忠,苏木标,陈树礼,夏禾.大跨度铁路桥梁健康状态评估的统计对比诊断方法研究[J].铁道学报,2006,28(2):116-121. 被引量:23
  • 3陈保平,王月波,范春荣,卢朝辉.ARM CPU在桥梁挠度监测系统中的应用[J].电子技术应用,2007,33(5):25-28. 被引量:3
  • 4张启伟 袁万城 等.大型桥梁结构安全监测的研究现状与发展[J].同济大学学报,1997,25:76-81.
  • 5史家钧 项海帆 等.确保大型桥梁安全性与耐久性的综合监测系统[J].同济大学学报,1997,25:71-75.
  • 6张启伟.桥梁结构模型修正与损伤识别[M].上海:同济大学桥梁工程系,1999..
  • 7[6]Caicedo,Juan M.,Dyke,Shirley J..Experimental validation of structural health monitoring for flexible bridge structures[J].Structural Control and Health Monitoring,2005,(12):425-443
  • 8张启伟,学位论文,1999年
  • 9Lau C K,Structural Health Monitoring 2000,1999年,450页
  • 10Chueng M S,Can J Civil Eng,1997年,24卷,6期,951页

共引文献350

同被引文献103

引证文献18

二级引证文献95

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部