A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Bridge modal identification from ambient vibration measurements
Full-scale dynamic tests were conducted to measure the dynamic response of two bridges. Since the experimental program included both traffic-induced and free vibration measurements, the modal parameters (resonant frequencies and mode shapes) estimated from the two different excitations were compared so that the accuracy of ambient vibration survey is assessed. First the comparison was carried out by using all the recorded data (48 minutes in both cases) to extract modal parameters from ambient vibration records. In addition, a study of the effects of different signal length was performed. The results clearly showed that natural frequencies are very well estimated from ambient vibration data even using short records while the identification of mode shapes is more sensitive to the length of records.
Bridge modal identification from ambient vibration measurements
Full-scale dynamic tests were conducted to measure the dynamic response of two bridges. Since the experimental program included both traffic-induced and free vibration measurements, the modal parameters (resonant frequencies and mode shapes) estimated from the two different excitations were compared so that the accuracy of ambient vibration survey is assessed. First the comparison was carried out by using all the recorded data (48 minutes in both cases) to extract modal parameters from ambient vibration records. In addition, a study of the effects of different signal length was performed. The results clearly showed that natural frequencies are very well estimated from ambient vibration data even using short records while the identification of mode shapes is more sensitive to the length of records.
Bridge modal identification from ambient vibration measurements
Brückenmoden-Identifikation aus der Messung der Umgebungsschwingung
Gentile, C. (author) / Saisi, A. (author)
2001
13 Seiten, 11 Bilder, 3 Tabellen, 17 Quellen
(Nicht paginiert).
Conference paper
English
Modal identification from ambient vibration tests on a cable-stayed bridge
| British Library Conference Proceedings | 2005
Modal analysis and ambient vibration measurements on Mila-Algeria cable stayed bridge
| British Library Online Contents | 2008
Modal Identification through Ambient Vibration: Comparative Study
| Online Contents | 2009
A Novel Approach for Modal Identification from Ambient Vibration
| British Library Conference Proceedings | 2008