Investigating Feasibility of Drive-by Bridge Monitoring by Laboratory Experiments

C. W. Kim, K. C. Chang, S. Inoue, S. Hasegawa, P. J. McGetrick

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Abstract

A potentially powerful drive-by bridge inspection approach was proposed to inspect bridge conditions utilizing the vibrations of a test vehicle while it passes over the target bridge. This approach suffers from the effect of roadway surface roughness and two solutions were proposed in previous studies: one is to subtract the responses of two vehicles (time-domain method) before spectral analysis and the other one is to subtract the spectrum of one vehicle from that of the other (frequency-domain method). Although the two methods were verified theoretically and numerically, their practical effectiveness is still an open question.Furthermore, whether the outcome spectra processed by those methods could be used to detect potential bridge damage is of our interests. In this study, a laboratory experiment was carried out with a test tractor-trailer system and a scaled bridge. It was observed that, first, for practical applications, it would be preferable to apply the frequency-domain method, avoiding the need to meet a strict requirement in synchronizing the responses of the two trailers in time domain; second, the statistical pattern of the processed spectra in a specific frequency band could be an effective anomaly indicator incorporated in drive-by inspection methods.
Original languageEnglish
Title of host publicationMechanics of Structures and Materials XXIV: Proceedings of the 24th Australian Conference on the Mechanics of Structures and Materials (ACMSM24, Perth, Australia, 6-9 December 2016)
PublisherCRC Press
Number of pages6
ISBN (Print)9781138029934
Publication statusPublished - 22 Nov 2016
Eventthe 24th Australian Conference on the Mechanics of Structures and Materials (ACMSM24) - Curtin University, Perth, Australia
Duration: 06 Dec 201609 Dec 2016
http://scieng.curtin.edu.au/acmsm24/

Conference

Conferencethe 24th Australian Conference on the Mechanics of Structures and Materials (ACMSM24)
Abbreviated titleACMSM24
CountryAustralia
CityPerth
Period06/12/201609/12/2016
Internet address

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  • Cite this

    Kim, C. W., Chang, K. C., Inoue, S., Hasegawa, S., & McGetrick, P. J. (2016). Investigating Feasibility of Drive-by Bridge Monitoring by Laboratory Experiments. In Mechanics of Structures and Materials XXIV: Proceedings of the 24th Australian Conference on the Mechanics of Structures and Materials (ACMSM24, Perth, Australia, 6-9 December 2016) CRC Press.