A prediction model and its validation of railway-induced building vibrations

Abstract

A prediction model of the structural vibration responses induced by the running trains is established. The modal parameters of the structure are identified using a double-confirmation analysis method based on the auto-spectrum, and the vibration responses of the building are calculated from a limited number of measuring records by inputting the measured vibration information to the foundation of the updated building model. The proposed method is validated by an in-situ experiment of a five-floor residential building near a railway. It was found that the calculated vibration level corresponds well with the measured ones in the concerned frequency bands.