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Dynamic Characteristics of a Curved Cable-stayed Bridge:Operational Modal Testing and FE Modeling |
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| Authors: | Bruno Briseghella Fulvio Busatta Carmelo Gentile Enzo Siviero Tobia Zordan |
| Affiliation: | 1. College of Civil Engineering, Fuzhou University, Fuzhou, Fujian 350108, China 2. Department of Structural Engineering,Politecnico di Milano, Milan, Italy 3. Department of Architectural Construction, University WAV of Venice, Venice, Italy 4. College of Civil Engineering, Tongji University,Shanghai 200092, China |
| Abstract: | This paper summarizes the analytical and experimental dynamic analyses carried out to assess the actual dynamic behaviour of a curved cable-stayed bridge, recently erected in the commercial harbour of Porto Marghera ( Venice, Italy). Ambient vibration tests were carried out to determine the dynamiccharacteristics of the bridge and more than 20 modes were identified in the frequency range 0～10Hz. In the theoretical study, a 3D FE model of. the bridge was developed using an integrated CAD-FEA approach; subsequently, the information obtained from the field tests, combined with simple manual tuning, provided a linear elastic model, accurately fitting the modal parameters of the bridge in its present condition. |
| Keywords: | curved cable-stayed bridge dynamic charateristic modal testing FE method |
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