Dynamic Response Identification of a Triple-Single Bailey Bridge Based on Vehicle Traffic-Induced Vibration Analysis

نویسندگان

چکیده

Even though prefabricated steel Bailey bridges have been used for more than 80 years, limited studies of their structural features conducted, most which do not consider response in operational conditions. This study aimed at determining the modal parameters a 30.48 m length Triple-Single (TS) bridge based on traffic-induced vibrations and comparing them with numerical results. Low-cost improvised accelerometers recorded logged actual time histories, while three-dimensional (3D) model was developed to carry out relevant dynamic analyses. The identification Operational Modal Analysis (OMA) process Frequency Domain Decomposition (FDD) method. Numerical analysis results are accordance Triple -Single bridge, confirming that can effectively be extended analysis. In addition, raw histories through OMA indicates is affected by connections’ condition, particular, eventual looseness bolts pins. At least five eigenfrequencies were estimated matched mode shapes.

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ژورنال

عنوان ژورنال: Infrastructures

سال: 2022

ISSN: ['2412-3811']

DOI: https://doi.org/10.3390/infrastructures7100139