抄録
In this research, first the microtremor measurement is conducted for the independent RC piers before the superstructure is constructed and for the completed bridge after the superstructure is constructed. The natural frequencies and the damping ratios of the independent RC piesr and the completed bridge are indentified including the effect of the ground condition and the embedded soil around the pier from the microtremor measurement. The analytical models of the independent RC piers and the completed bridge are constructed and the eigenvalue analysis is conducted against the models in order to check the applicability of the analytical models.