Parametric study to extract bridge frequencies from the dynamic response of passing vehicles

Shinichi Inoue, Chul-Woo Kim, Patrick J. McGetrick, Kunitomo Sugiura, Mitsuo Kawatani

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

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    Abstract

    A conventional way to identify bridge frequencies is utilizing vibration data measured directly from the bridge. A drawback with this approach is that the deployment and maintenance of the vibration sensors are generally costly and time-consuming. One way to cope with the drawback is an indirect approach utilizing vehicle vibrations while the vehicle passes over the bridge. In the indirect approach, however, the vehicle vibration includes the effect of road surface roughness, which makes it difficult to extract the bridge modal properties. One solution may be subtracting signals of two trailers towed by a vehicle to reduce the effect of road surface roughness. A simplified vehicle-bridge interaction model is used in the numerical simulation; the vehicle - trailer and bridge system are modeled as a coupled model. In addition, a laboratory experiment is carried out to verify results of the simulation and examine feasibility of the damage detection by the indirect method.
    Original languageEnglish
    Title of host publication Proceedings of the 28th KKHTCNN Symposium on Civil Engineering
    PublisherKKHTCNN
    Number of pages4
    Publication statusPublished - Nov 2015
    EventThe 28th KKHTCNN Symposium on Civil Engineering - Chulalongkorn University, Bangkok, Thailand
    Duration: 16 Nov 201518 Nov 2015

    Conference

    ConferenceThe 28th KKHTCNN Symposium on Civil Engineering
    CountryThailand
    CityBangkok
    Period16/11/201518/11/2015

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