A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Operational modal analysis for long-term bridge performance monitoring
Operational Modal Analysis (OMA) has been successfully implemented in many recent efforts to extract modal parameter estimations under ambient conditions. Accurate identification of modal parameters using ambient excitations is crucial to vibration-based bridge health monitoring systems. To evaluate the relative effectiveness and accuracy of different OMA methods, a laboratory experiment on a full-scale bridge deck specimen was performed. Traditional time-domain displacement-based NExT technique was first extended to frequency domain and acceleration response based. The authors then proposed a frequency domain OMA method NExT-RFP. Two different types of OMA methods: NExT-RFP and FDD, were evaluated using simulated ambient excitation. The results showed that the use of NExT-RFP technique led to better performance when the ambient excitation is non-stationary.
Operational modal analysis for long-term bridge performance monitoring
Operational Modal Analysis (OMA) has been successfully implemented in many recent efforts to extract modal parameter estimations under ambient conditions. Accurate identification of modal parameters using ambient excitations is crucial to vibration-based bridge health monitoring systems. To evaluate the relative effectiveness and accuracy of different OMA methods, a laboratory experiment on a full-scale bridge deck specimen was performed. Traditional time-domain displacement-based NExT technique was first extended to frequency domain and acceleration response based. The authors then proposed a frequency domain OMA method NExT-RFP. Two different types of OMA methods: NExT-RFP and FDD, were evaluated using simulated ambient excitation. The results showed that the use of NExT-RFP technique led to better performance when the ambient excitation is non-stationary.
Operational modal analysis for long-term bridge performance monitoring
Betriebsüberwachung durch Modalanalyse zur Langzeitüberwachung des Brückenzustands
Guan, H. (author) / Karbhari, V.M. (author) / Sikorsky, C.S. (author)
2006
8 Seiten, 3 Bilder, 2 Tabellen, 7 Quellen
Conference paper
Storage medium
English
Statistical Analysis and Long-Term Operational Monitoring of Sutong Bridge
| British Library Conference Proceedings | 2015
Operational Modal Analysis of a RC Arch Bridge
| Springer Verlag | 2024