桥结构振动特性分析诊断平台的设计与实现
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摘要
为了实现对铁路桥结构(墩,梁)的工况监测,分析和评估桥结构振动特性,掌握抗震性能变化情况和趋势,适应铁道部对列车提速的技术要求,利用超低频绝对位移测量传感器开发出了桥梁工况微机智能监测评估系统.该系统是便携式智能检测产品,实现了多路信号检测、与上位机通讯、系统回放及专家评估等多项功能,同时具有成本低、对所测车辆数目无限制等优点,应用空间广阔.
To realize the work condition monitor of the railway bridge structure(pier,bridge),analyze and evaluate the vibration characteristic ,control the changing and trending of anti-seismic capability,adapt the technique request that the railroad department wants to raise the speed of the train, an intelligence monitor system of bridge work condition using ultra-low frequency absolute displacement sensor was developed.This system is a kind of portable intelligence monitor.It realizes the inspection of multi-channel signal,communication with the super-computer,system recording and playing and expert assessment.At the same time,it also has the strongpoint of low cost and no limit with the number of the vehicle be monitored.So it can be widely used in future.
To realize the work condition monitor of the railway bridge structure(pier,bridge),analyze and evaluate the vibration characteristic ,control the changing and trending of anti-seismic capability,adapt the technique request that the railroad department wants to raise the speed of the train, an intelligence monitor system of bridge work condition using ultra-low frequency absolute displacement sensor was developed.This system is a kind of portable intelligence monitor.It realizes the inspection of multi-channel signal,communication with the super-computer,system recording and playing and expert assessment.At the same time,it also has the strongpoint of low cost and no limit with the number of the vehicle be monitored.So it can be widely used in future.
引文
[1]李小珍,王应良,马立杰.大跨度连续拱木行组合刚桥空间振分析[J].振动与冲击,1999,18(4):35-39.
[2]阎贵平,夏禾,何敏.列车与刚梁柔拱组合系桥系统的地震响应分析[J].北方交通大学学报,2002,18(1):9-16.
[3]刘涵宁,李廷春.桥梁结构抗震动力分析理论与实践[J].铁道标准设计,2000,20(2):33-35.
[4]王永刚,张景绘,郑羽飞,等.区间分析在桥墩抗震性能评估中的应用[J].中国公路学报,2000,13(1):52-55.
[5]王春芬,刘国力.宝中线颉河六号大桥振动测试分析[J].兰州铁道学院学报,2002,18(3),22-24.
[6]郭向荣,曾庆元.高速铁路结合桥梁与列车系统振动分析模型[J].华中理工大学学报,2003,28(3),66-62.
[7]蒋敦斌,李文英.便携式桥梁按原则振幅检测仪[J].自动化与仪器,1999,3:67-71.
[2]阎贵平,夏禾,何敏.列车与刚梁柔拱组合系桥系统的地震响应分析[J].北方交通大学学报,2002,18(1):9-16.
[3]刘涵宁,李廷春.桥梁结构抗震动力分析理论与实践[J].铁道标准设计,2000,20(2):33-35.
[4]王永刚,张景绘,郑羽飞,等.区间分析在桥墩抗震性能评估中的应用[J].中国公路学报,2000,13(1):52-55.
[5]王春芬,刘国力.宝中线颉河六号大桥振动测试分析[J].兰州铁道学院学报,2002,18(3),22-24.
[6]郭向荣,曾庆元.高速铁路结合桥梁与列车系统振动分析模型[J].华中理工大学学报,2003,28(3),66-62.
[7]蒋敦斌,李文英.便携式桥梁按原则振幅检测仪[J].自动化与仪器,1999,3:67-71.
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