Moving load identification has been researched with regard to the analysis of structural responses, taking into consideration that the structural responses would be affected by the axle parameters, which in its turn would complicate obtaining the values of moving vehicle loads. In this research, a method that identifies the loads of moving vehicles using the modified maximum strain value considering the long-gauge fiber optic strain responses is proposed. The method is based on the assumption that the modified maximum strain value caused only by the axle loads may be easily used to identify the load of moving vehicles by eliminating the influence of these axle parameters from the peak value, which is not limited to a specific type of bridges and can be applied in conditions, where there are multiple moving vehicles on the bridge. Numerical simulations demonstrate that the gross vehicle weights (GVWs) and axle weights are estimated with high accuracy under complex vehicle loads. The effectiveness of the proposed method was verified through field testing of a continuous girder bridge. The identified axle weights and gross vehicle weights are comparable with the static measurements obtained by the static weighing.


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    Titel :

    Moving Load Identification with Long Gauge Fiber Optic Strain Sensing



    Erscheinungsdatum :

    2021-09-29


    Anmerkungen:

    doi:10.7250/bjrbe.2021-16.535
    The Baltic Journal of Road and Bridge Engineering; Vol 16, No 3 (2021): The Baltic Journal of Road and Bridge Engineering; 131-158 ; 1822-4288 ; 1822-427X



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Klassifikation :

    DDC:    629




    Commercialization of fiber-optic strain gauge systems

    Mason, T. G. Beck / Valis, Tomas / Hogg, W. D. | SPIE | 1993


    Very long gauge length fiber optic sensing and applications [4074-40]

    Spillman, W. B. / Huston, D. R. / SPIE | British Library Conference Proceedings | 2000


    Strain Sensing Using Fiber-Optic Interferometry

    Sarveswara Rao, P.C.V. | Online Contents | 2003


    Flight tests of a fiber-optic interferometric strain gauge

    Fuerstenau, Norbert / Janzen, Douglas D. / Schmidt, Walter | SPIE | 1993


    Fiber Optic Strain Sensing on Rotating Shafts

    Narendran, N. / Corbo, M. / Tang, L. et al. | British Library Conference Proceedings | 1996