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Identification of span of Multi-span Simply Supported Girders by the Longitudinal Level Waveforms
Infrastructure Inspection Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing, China.
Infrastructure Inspection Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing, China.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Operation, Maintenance and Acoustics.ORCID iD: 0000-0002-7458-6820
2019 (English)In: International Journal of COMADEM, ISSN 1363-7681, Vol. 22, no 3, p. 19-22Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
COMADEM International, 2019. Vol. 22, no 3, p. 19-22
Keywords [en]
Span identification, multi-span simply supported girders, longitudinal level waveform, time-frequency analysis
National Category
Other Civil Engineering
Research subject
Operation and Maintenance
Identifiers
URN: urn:nbn:se:ltu:diva-75758OAI: oai:DiVA.org:ltu-75758DiVA, id: diva2:1346958
Note

Validerad;2019;Nivå 1;2019-09-03 (johcin)

Available from: 2019-08-29 Created: 2019-08-29 Last updated: 2019-09-03Bibliographically approved

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https://apscience.org/comadem/index.php/comadem/article/view/153

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Lin, Jing

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