Natural Frequency Identification Method for Substructures in Railway Bridges and Viaducts

抄録

We have proposed a method for identifying the natural frequency of single structures from data obtained by measuring the vibration of railway bridges and viaducts. With this method, the natural frequency of a single structure can be theoretically calculated using undamped natural frequencies and the natural modes of whole structures. The eigenvalue analysis shows that the natural frequency of a single structure can be identified by the proposed method.