Using an ambient vibration test to identify damage in a sculpture
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Bibliographic Details
| Author(s): |
Elsa Caetano
(Faculty of Engineering of the University of Porto, Porto, Portugal)
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Structural Engineering for Future Societal Needs, Ghent, Belgium, 22-24 September 2021 | ||||
| Published in: | IABSE Congress Ghent 2021 | ||||
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| Page(s): | 481-488 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/ghent.2021.0481 | ||||
| Abstract: |
This paper describes the studies conducted to assess damage in a sculpture. These include a numerical model and an ambient vibration test based on a dense mesh of points to identify the fundamental natural frequencies and the corresponding modal shapes. From the comparison between identified and calculated modal parameters, it was possible to identify a region of inflexion of curvatures of the second-order vibration modes at a particular location that was associated with a local fragility of the structure. A posterior removal of the cladding evidenced a highly degraded area at this location. |
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| Keywords: |
numerical model ambient vibration damage identification
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| Copyright: | © 2021 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | This creative work is copyrighted material and may not be used without explicit approval by the author and/or copyright owner. |
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