Abstract
ABSTRACT Vibration measurements on bridges is not recent and many studies were carried out in the past by many french or foreign agencies or companies. What is new today, it is the increase of the number of dynamic tests carried out on bridges for a better assessment of their structural behaviour. The prime objective in a dynamic assessment is the determination—or identification—of the modal characteristics. That includes the natural frequencies, the damping ratios and the mode shapes. For this purpose, dynamic testing is based on three levels: data acquisition (metrology), data treatment (signal processing) and data analysis (modal analysis, assessment). Within this three levels process, the choice of an appropriate excitation is equally essential. After pointing out the objectives and the stakes of bridge dynamic testing, this paper highlights metrology, methodology, computational and practical aspects.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
