Identification of span of multi-span simply supported girders by the longitudinal level waveforms

被引：0
|
作者：
Zhang, Bo [1 ]
Liu, Xiubo [1 ]
Lin, Jing [2 ]
机构：
[1] Infrastructure Inspection Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing,100081, China
[2] Division of Operation and Maintenance Engineering, Luleå University of Technology, Luleå,97187, Sweden
来源：
International Journal of COMADEM | 2019年 / 22卷 / 03期
关键词：
Beams and girders;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In high-speed railways, the periodic component of longitudinal level on the top surface of the track can be observed for multi-span simply supported girders. To monitor this component, the paper proposes a method to determine the locating position of simply supported girders using longitudinal level waveforms. The method first applies time-frequency analysis to determine the locating position of simply supported girder bridges in the longitudinal level waveform. Then it adopts a local minimum detection strategy to identify the locating position of the girders. The method is evaluated using the longitudinal level data of a 100km high-speed railway in China; the results show good locating performance. © 2019 COMADEM International. All rights reserved.
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页码：19 / 22
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