基于连通管原理的桥梁挠度自动监测系统
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摘要
基于连通管原理,采用电感调频液位传感器、RS-485通讯技术、光纤通讯技术和计算机技术,设计了一种桥梁挠度自动监测系统,能够对桥梁挠度进行远程自动监测,且不受人为因数和环境影响.系统于2004年初安装于洞庭湖大桥,工程应用表明系统稳定可靠,挠度测量结果的相对误差小于5%,能有效用于桥梁挠度的长期监测.
Based on the communicating pipe principle,and using the frequency-modulated inductance liquid-level sensor,RS-485 bus,fiber optical communication and computer,an auto-monitoring system of bridge deflection was designed,which realized remote and auto measurement.In addition,it was not affected by the surroundings and human factors.This system has been applied to Dongting Lake Bridge from the beginning of 2004,and the deflection relative error was less than 5%.It has been shown that such a system is feasible and stable.
Based on the communicating pipe principle,and using the frequency-modulated inductance liquid-level sensor,RS-485 bus,fiber optical communication and computer,an auto-monitoring system of bridge deflection was designed,which realized remote and auto measurement.In addition,it was not affected by the surroundings and human factors.This system has been applied to Dongting Lake Bridge from the beginning of 2004,and the deflection relative error was less than 5%.It has been shown that such a system is feasible and stable.
引文
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[4]夏哲,付红桥,张文,等.桥梁变形图像监测系统调制传递函数[J].重庆大学学报:自然科学版,2004,27(6):17-20.XIAZ,FU H Q,ZHANG W,et al.Modulation transfer func-tion of i mage monitoring system for bridge’s deformation[J].Journal of Chongqing University:Natural Sciences,2004,27(6):17-20.(In Chinese)
[5]ASHKENAZI V,ROBERTS G W.Experi mental monitoring ofthe humber bridge using GPS[J].Civil Engineering,1997,120(4):177-182.
[6]谢毅,严普强,毛乐山.铁路桥梁动挠度惯性测量方法[J].仪器仪表学报,1999,20(1):20-22.XIE Y,YAN P Q,MAO L S.Inertial measurement method forrailway bridge dynamic deflection[J].Chinese Journal of ScientificInstrument,1999,20(1):20-22.(In Chinese)
[7]熊先才,章鹏,苻欲梅,等.光电液位传感器及其在挠度自动监测中的应用[J].地震工程与工程振动,2006,26(4):260-264.XIONG X C,ZHANG P,FU Y M,et al.Optoelectronic liquid-level sensor and its application for automatically measuring bridgedeflection[J].Earthquake Enginieering and Engineering Vibra-tion,2006,26(4):260-264.(In Chinese)
[8]付军,严新平,刘胜春,等.基于压力变送器的桥梁挠度监测系统研究[J].交通科技,2005(3):47-48.FUJ,YAN X P,LI US C,et al.Pressure transmitter-based sys-temfor bridge deflction monitoring[J].Transportation Science&Technology,2005(3):47-48.(In Chinese)
[2]HOU X M,YANG XS,HUANG Q.Usinginclinometers to mea-sure bridge deflection[J].Journal of Bridge Engineering,2005,10(5):564-569.
[3]董辉,陈伟民,符欲梅,等.一种激光图像挠度测量方法[J].传感器技术,2004,23(10):63-66.DONG H,CHEN W M,FU Y M,et al.Method of laser&i maging deflection measurement[J].Journal of Transducer Tech-nology,2004,23(10):63-66.(In Chinese)
[4]夏哲,付红桥,张文,等.桥梁变形图像监测系统调制传递函数[J].重庆大学学报:自然科学版,2004,27(6):17-20.XIAZ,FU H Q,ZHANG W,et al.Modulation transfer func-tion of i mage monitoring system for bridge’s deformation[J].Journal of Chongqing University:Natural Sciences,2004,27(6):17-20.(In Chinese)
[5]ASHKENAZI V,ROBERTS G W.Experi mental monitoring ofthe humber bridge using GPS[J].Civil Engineering,1997,120(4):177-182.
[6]谢毅,严普强,毛乐山.铁路桥梁动挠度惯性测量方法[J].仪器仪表学报,1999,20(1):20-22.XIE Y,YAN P Q,MAO L S.Inertial measurement method forrailway bridge dynamic deflection[J].Chinese Journal of ScientificInstrument,1999,20(1):20-22.(In Chinese)
[7]熊先才,章鹏,苻欲梅,等.光电液位传感器及其在挠度自动监测中的应用[J].地震工程与工程振动,2006,26(4):260-264.XIONG X C,ZHANG P,FU Y M,et al.Optoelectronic liquid-level sensor and its application for automatically measuring bridgedeflection[J].Earthquake Enginieering and Engineering Vibra-tion,2006,26(4):260-264.(In Chinese)
[8]付军,严新平,刘胜春,等.基于压力变送器的桥梁挠度监测系统研究[J].交通科技,2005(3):47-48.FUJ,YAN X P,LI US C,et al.Pressure transmitter-based sys-temfor bridge deflction monitoring[J].Transportation Science&Technology,2005(3):47-48.(In Chinese)
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