Monitoring of Environmental Effects on Modal Estimates of Large Structures
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Bibliographic Details
| Author(s): |
Elsa Caetano
Álvaro Cunha Filipe Magalhães Carlos Moutinho Wei-Hua Hu Sandro Amador |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | 18th IABSE Congress: Innovative Infrastructures – Towards Human Urbanism, Seoul, Korea, 19-21 September 2012 | ||||
| Published in: | IABSE Congress Seoul 2012 | ||||
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| Page(s): | 635-642 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/222137912805110916 | ||||
| Abstract: |
This paper aims at describing some applications recently developed by the Laboratory of Vibrations and Structural Monitoring (www.fe.up.pt/vibest) of FEUP in which an accurate monitoring of the effects of environmental factors on modal frequency estimates was continuously performed, and appropriate statistical techniques were employed to remove or mitigate such effects, enabling a correct vibration based damage detection approach. The monitored structures are the Infante D. Henrique Bridge, the Pedro e Inês and the FEUP stress-ribbon footbridges, and the suspension cable roof of Braga stadium. The paper focuses on the effects of temperature on modal parameters. |
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| Keywords: |
temperature damage detection environmental factors continuous dynamic monitoring Intensity of traffic Modal frequency estimates
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