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Impact of environmental based effects on SHM strategies

  • Environmental based perturbations influence significantly the ability to identify structural dam-age in Structural Health Monitoring. Strategies are needed to classify such effects and consider them appropri-ately in SHM. It has to be considered if seasonal effects just mask the structural response or if temperature itself correlates to a weakening of the structure. Various methods have been developed and analyzed to separate environmental based effects from damage induced changes in the measures. Generally, two main approaches have emerged from research activity in this fields: (a) statistics-based tools analyzing patterns in the data or in computed parameters and (b) methods, utilizing the structural model of the bridge considering environmental as well as damage-based changes of stiffness values. With the background of increasing affordability of sensing and computing technology, effort should be made to increase sensitivity, reliability and robustness of proce-dures, separatingEnvironmental based perturbations influence significantly the ability to identify structural dam-age in Structural Health Monitoring. Strategies are needed to classify such effects and consider them appropri-ately in SHM. It has to be considered if seasonal effects just mask the structural response or if temperature itself correlates to a weakening of the structure. Various methods have been developed and analyzed to separate environmental based effects from damage induced changes in the measures. Generally, two main approaches have emerged from research activity in this fields: (a) statistics-based tools analyzing patterns in the data or in computed parameters and (b) methods, utilizing the structural model of the bridge considering environmental as well as damage-based changes of stiffness values. With the background of increasing affordability of sensing and computing technology, effort should be made to increase sensitivity, reliability and robustness of proce-dures, separating environmental from damage caused changes in SHM measures. The contribution describes an attempt to evaluate both general strategies, their advantages and drawbacks. In addition, two vibration moni-toring procedures are introduced, allowing for temperature-based perturbations of the monitoring data.zeige mehrzeige weniger

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Metadaten
Autor*innen:Matthias Baeßler, Delwar Bhuyan, Falk Hille, Eva Viefhues, M. Döhler, L. Mevel
Persönliche Herausgeber*innen:Alphose Zingoni
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Graue Literatur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Advances in Engineering Materials, Structures and Systems: Innovations, Mechanics and Applications
Jahr der Erstveröffentlichung:2019
Organisationseinheit der BAM:7 Bauwerkssicherheit
7 Bauwerkssicherheit / 7.2 Ingenieurbau
Herausgeber (Institution):Department of Civil Engineering, University of Cape Town
Verlag:CRC Press
Verlagsort:Boca Raton
Erste Seite:Paper 324, 1
Letzte Seite:Paper 324, 6
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurbau
Freie Schlagwörter:SHM environmental bridges
Themenfelder/Aktivitätsfelder der BAM:Infrastruktur
Veranstaltung:SEMC 2019
Veranstaltungsort:Cape Town, South Africa
Beginndatum der Veranstaltung:02.09.2019
Enddatum der Veranstaltung:04.09.2019
DOI:10.1201/9780429426506
ISBN:978-1-138-38696-9
ISBN:978-0-429-42650-6
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:01.10.2019
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:20.01.2020
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