大跨度斜拉桥GPS动态监测试验及结果分析

黄声享, 吴文坛, 李沛鸿

黄声享, 吴文坛, 李沛鸿. 大跨度斜拉桥GPS动态监测试验及结果分析[J]. 武汉大学学报 ( 信息科学版), 2005, 30(11): 999-1002.
引用本文: 黄声享, 吴文坛, 李沛鸿. 大跨度斜拉桥GPS动态监测试验及结果分析[J]. 武汉大学学报 ( 信息科学版), 2005, 30(11): 999-1002.
HUANG Shengxiang, WU Wentan, LI Peihong. GPS Dynamic Monitoring Experiment and Result Analysis of Long-Span Cable-Stayed Bridge[J]. Geomatics and Information Science of Wuhan University, 2005, 30(11): 999-1002.
Citation: HUANG Shengxiang, WU Wentan, LI Peihong. GPS Dynamic Monitoring Experiment and Result Analysis of Long-Span Cable-Stayed Bridge[J]. Geomatics and Information Science of Wuhan University, 2005, 30(11): 999-1002.

大跨度斜拉桥GPS动态监测试验及结果分析

基金项目: 地球空间环境与大地测量教育部重点实验室开放研究基金资助项目(020907)
详细信息
    作者简介:

    黄声享,教授,博士生导师。现主要从事变形监测与灾害预报、GPS定位技术及应用的教学与科研工作。代表成果:变形数据分析方法研究;GPS建筑测量技术;GPS监测系统数据分析软件设计等

  • 中图分类号: P228.42

GPS Dynamic Monitoring Experiment and Result Analysis of Long-Span Cable-Stayed Bridge

Funds: 地球空间环境与大地测量教育部重点实验室开放研究基金资助项目(020907)
  • 摘要: 为确保大桥建成后的安全运行,及时掌握桥梁结构的健康状况,避免出现灾难性的后果,有必要对桥梁结构的动态特性进行测定,以检验实测值与理论设计数值的偏差程度。结合武汉白沙洲大桥的GPS动态监测试验工作,介绍了试验实施方案及其数据处理过程。应用频谱分析法有效地确定了斜拉桥跨中的振动特征,其数值结果与理论设计值吻合较好。研究表明,高采样率GPS接收机与合适的数据处理方法相结合,可以有效地确定桥梁结构的自振特性。
    Abstract: For the sake of timely appraising the working condition of the bridge, measuring the dynamic characteristics of the bridge structure is very important and necessary. A GPS dynamic monitoring test was carried out in the Wuhan Baishazhou Bridge, which is one of the longest span cable-stayed bridges having been built in China. This paper introduces the experimental implementing scheme and data processing method. The vibration characteristics of the middle span of cable-stayed bridge are availably obtained by using the spectral analytic approach. The measuring results are very identical to the theoretical designed values. The research demonstrates that, with GPS receiver of the high sampling rate and suitable data processing method, the vibration characteristics of the bridge structure can be determined with high accuracy.
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出版历程
  • 收稿日期:  2005-09-04
  • 修回日期:  2005-09-04
  • 发布日期:  2005-11-04

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