Dynamic testing on the new ticino bridge of the A4 highway
| Autor: | Elena Mola, Franco Mola, Giorgio Busca, Alfredo Cigada |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Model tuning
Computer simulation Monitoring Computer science business.industry Mechanical Engineering Computational Mechanics Structural engineering Operational modal analysis Bridge (nautical) Eigenvalue analysis Operational Modal Analysis Identification (information) Modal Engineering (all) Benchmark (surveying) Computational mechanics Composite bridges business Dynamic testing |
| Zdroj: | Conference Proceedings of the Society for Experimental Mechanics Series ISBN: 9783319547763 |
| Popis: | The dynamic tests on the two separate viaducts constituting the bridge over the Ticino river offered the chance to start a thorough identification process consisting in numerical simulation, experimental activity and model updating, to gather a deeper knowledge of the bridge behavior. In addition, this series of tests has offered a good benchmark to prove the actual strengths and weaknesses of the Italian standards for dynamic testing. The two viaducts are identical and made up of a series of equal length spans, making modal identification a more complex task, since it has to be performed in the presence of dense spectra with a number of closely spaced peaks, belonging to quite similar mode shapes. Operational Modal Analysis (OMA) was performed and is scheduled to be repeated in the future to assess any eventual on-going damage. The paper will present the results of the experimental activity compared to the numerical predictions and the model tuning activity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|