Abstract
This study aims to investigate the vibration serviceability and impact coefficient of a seven-span continuous cable-stayed bridge planned for the extension of a highway. In the design of the bridge, the deflection under the design live load of the continuous cable-stayed bridge would not meet the deflection limit specified in “Japanese Design Specifications for Highway Bridges.” The excessive deflection indicates the possibility of poor vibration serviceability. To clarify the vibration serviceability of the bridge, the dynamic responses of the bridge and passing vehicles are examined by means of the three-dimensional vehicle-bridge coupled vibration analysis. The ride comfort of vehicles on the bridge is examined in terms of vibration serviceability. Observations demonstrated that the vehicle response does not exceed the ride comfort limit under various vehicle, road, and running conditions. In other words, the influence of large deflection on driving safety is negligible. The impact factors were found to be less than 1.05 for the main girder, the base of the main tower, and the cable.
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Kimura, S., Kim, CW., Sugiyama, H., Ono, K. (2023). Vibration Serviceability of a Seven Span Continuous Cable-Stayed Bridge. In: Limongelli, M.P., Giordano, P.F., Quqa, S., Gentile, C., Cigada, A. (eds) Experimental Vibration Analysis for Civil Engineering Structures. EVACES 2023. Lecture Notes in Civil Engineering, vol 433. Springer, Cham. https://doi.org/10.1007/978-3-031-39117-0_22
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DOI: https://doi.org/10.1007/978-3-031-39117-0_22
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