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Sensitivity-based Structural Damage Identification via Response Reconstruction

Sensitivity-based Structural Damage Identification via Response Reconstruction
Auteur(s): , ORCID,
Présenté pendant IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022, publié dans , pp. 1248-1255
DOI: 10.2749/nanjing.2022.1248
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The limitation of sensor number and results that the monitored data is difficult to reflect the true state of the structures, which limits the reliability of bridge damage identification and deteri...
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Détails bibliographiques

Auteur(s): (Department of Bridge Engineering, Tongji University, Shanghai 200092, China)
ORCID (Department of Bridge Engineering, Tongji University, Shanghai 200092, China; State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China)
(Department of Civil and Environment, Hong Kong Polytechnic University, Dept. of Bridge Engineering, College of Civil Engineering, Tongji University, Hong Kong, China)
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022
Publié dans:
Page(s): 1248-1255 Nombre total de pages (du PDF): 8
Page(s): 1248-1255
Nombre total de pages (du PDF): 8
DOI: 10.2749/nanjing.2022.1248
Abstrait:

The limitation of sensor number and results that the monitored data is difficult to reflect the true state of the structures, which limits the reliability of bridge damage identification and deterioration assessment. There are many full-field response reconstruction methods developed to obtain the complete responses. However, the quality of the reconstructed data is comprehensively affected by finite element model errors, noise interference and strong coupling environmental effects, resulting in the low accuracy of dynamic-based damage indicators. Thus, this paper explores a damage identification method based on static response reconstruction and solve the damage factor using the relationship between the sensitivity matrix and the structural deformation. Taking simply- supported and cantilevered beam as examples, numerical calculations confirm that the method can effectively locate the damage of the structural system.
Copyright: © 2022 International Association for Bridge and Structural Engineering (IABSE)
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