Analysis of Bridge Health Status Based on TRACK[
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摘要: 梁动态监测一直是工程变形监测方向的研究重点。文中简单介绍了TRACK模块,进一步阐述了TRACK数据处理的原理,以某桥梁实验数据,利用GAMIT／GLOBK1061中的双差动态定位TRACK模块对桥梁的实测数据进行了单历元数据的后处理,分别得到了桥梁车辆高峰时段和夜间时段的桥梁振动的时间序列,又通过经验模态分解方法对桥梁振动的时间序列进行降噪处理,对比分析了车辆对桥梁健康状况的影响,进一步验证了TRACK对桥梁状况分析方法的可行性。
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关键词:
- 桥梁动态监测 /
- GAMIT／GLOBK10.61 /
- TRACK模块 /
- 经验模态分解去噪
Abstract: Dynamic monitoring of bridges has always been the focus of research on the direction of engineering deformation monitoring. This paper simply introduces the TRACK module, and further expounds the principle of TRACK data processing and a bridge of experimental data. Using double differential dynamic positioning module TRACK of GAMIT／GLOBK10.61 in the measured data on the bridge of single epoch data postprocessing, we obtain time series of bridge vibration of bridge vehicle peak hours and night time. The time series of the bridge vibration is de-noising by the empirical mode decomposition method, and the effect of the vehicle on the health of the bridge is compared and analyzed, and the feasibility of the TRACK method for the bridge condition analysis is further verified. -
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