苏通大桥结构健康监测系统设计
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摘要
介绍了苏通大桥结构健康监测系统研究的主要成果,分析了大跨径桥梁健康监测研究的关键问题。苏通大桥结构健康监测系统主要由四个子系统组成:(1)传感器系统(SS);(2)数据采集与传输系统(DATS);(3)数据管理与控制系统(DMCS);(4)结构健康评估系统(SHES)。其中,结构健康评估系统是苏通大桥结构健康监测和安全评价系统的核心内容。结构健康评估系统由五个模块组成:(1)桥梁评级系统;(2)适用性评估;(3)损伤诊断和预测;(4)耐久性评估;(5)安全性评估。文中较为系统地论述了目前大跨桥梁健康监测系统建立与研究中的主要问题,指出了研究结构健康评估系统的主要技术途径,阐述了大跨桥梁健康监测系统存在的问题和发展方向。
The principal achievements in the health monitoring system for the Sutong Yangtze River Bridge are introduced.The main problems that exist in the establishment and study of the health monitoring system for long-span bridges are systematically discussed.The health monitoring system for the Sutong Yangtze River Bridge mainly consists of four local systems,which are(1)sensing system,(2) data adopting and transferring system,(3) data managing and controlling system,(4) structural health estimation system.And the structural health evaluating system is the core of the health monitoring system for the Sutong Yangtze River Bridge,which is composed of five parts,namely(1) bridge evaluating grade system,(2) evaluating of applicability,(3) diagnosis and prediction of damage,(4) evaluating of durability,(5) evaluating of safety.The potential technical approaches to the health evaluating system are presented.The disadvantages and the development directions of the health monitoring system for long-span bridges are discussed in detail.
The principal achievements in the health monitoring system for the Sutong Yangtze River Bridge are introduced.The main problems that exist in the establishment and study of the health monitoring system for long-span bridges are systematically discussed.The health monitoring system for the Sutong Yangtze River Bridge mainly consists of four local systems,which are(1)sensing system,(2) data adopting and transferring system,(3) data managing and controlling system,(4) structural health estimation system.And the structural health evaluating system is the core of the health monitoring system for the Sutong Yangtze River Bridge,which is composed of five parts,namely(1) bridge evaluating grade system,(2) evaluating of applicability,(3) diagnosis and prediction of damage,(4) evaluating of durability,(5) evaluating of safety.The potential technical approaches to the health evaluating system are presented.The disadvantages and the development directions of the health monitoring system for long-span bridges are discussed in detail.
引文
[1]何浩祥,闫维明,马华,等.结构健康监测系统设计标准化评述与展望[J].地震工程与工程振动,2008,28(4):154-160.
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[4]董聪,丁辉,高嵩.结构损伤识别和定位的基本原理与方法[J].中国铁道科学,1999,20(3):89-94.
[5]秦权.桥梁结构的健康监测[J].中国公路学报,2000(4):40-45.
[6]Thomas G C,Dohmann C R.A modal test design strategy for model correlation[C]//In:Bathel,ed.Proc 13th Intl Modal Analysis Conference,New York:Union College,Schenectady,1995:927-933.
[7]陈长征,罗跃纲,白秉三,等.结构损伤检测与智能诊断[M].北京:科学技术出版社,2001.
[8]谢强,薛松涛.土木工程结构健康监测的研究现状与进展[J].中国科学基金,2001,(5):285-288.
[9]姜绍飞,党永勤,苏居儒,等.基于振动的结构健康监测技术[J].沈阳建筑工程学院学报,2003,19(4):275-278.
[10]刘涛,李爱群,丁幼亮.小波分析在结构损伤识别中的应用[J].地震工程与工程振动,2008,28(2):29-35.
[2]Salawu O S.Detection of structural damage through changes in frequency:a review[J].Engineering Structures,1997,19(9):718-723.
[3]李宏男,李东升.土木工程结构安全性评估、健康监测及诊断述评[J].地震工程与工程振动,2002,22(3):82-90.
[4]董聪,丁辉,高嵩.结构损伤识别和定位的基本原理与方法[J].中国铁道科学,1999,20(3):89-94.
[5]秦权.桥梁结构的健康监测[J].中国公路学报,2000(4):40-45.
[6]Thomas G C,Dohmann C R.A modal test design strategy for model correlation[C]//In:Bathel,ed.Proc 13th Intl Modal Analysis Conference,New York:Union College,Schenectady,1995:927-933.
[7]陈长征,罗跃纲,白秉三,等.结构损伤检测与智能诊断[M].北京:科学技术出版社,2001.
[8]谢强,薛松涛.土木工程结构健康监测的研究现状与进展[J].中国科学基金,2001,(5):285-288.
[9]姜绍飞,党永勤,苏居儒,等.基于振动的结构健康监测技术[J].沈阳建筑工程学院学报,2003,19(4):275-278.
[10]刘涛,李爱群,丁幼亮.小波分析在结构损伤识别中的应用[J].地震工程与工程振动,2008,28(2):29-35.
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