Abstract
This paper presents the result and consideration of a field vibration test performed on the Hitsuishijima Bridge, a long-span cable-stayed bridge. In the test, large exciters were used to vibrate the bridge to a certain level of amplitude.
The dynamic properties, especially damping characteristics at large amplitudes, in the lower significant modes of this bridge were measured. By the comparison of the measured values with assumed ones at the design of these properties, dynamic design of the bridge was verified. In addition, coupled vibration which was observed between the girder and the cables was also examined by the analysis.
