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Post-earthquake damage evaluation of concrete structures using ultrasonic monitoring: A proof-of concept laboratory study

  • In earthquake-prone regions such as the Pacific Northwest, damage assessment tools are needed to enable safety evaluations to support recovery. Currently, damage assessment is performed primarily by visual inspection and is often impossible for structural members that are inaccessible, such as deep foundations or interior members hidden by cladding. This study explores the possibility of using embedded ultrasonic transducers to monitor reinforced concrete members for damage progression under earthquake loading. A novel methodology is proposed where changes in the member condition due to an increase in the earthquake-type loading of a full-scale column-foundation specimen are correlated with changes in the recorded ultrasonic waveforms. The discussed preliminary analysis of the ultrasonic signals is based on wave propagation velocity, changes in the coda wave portion, and maximum amplitude of the signals. Three embedded transducers were used to continuously monitor the laboratoryIn earthquake-prone regions such as the Pacific Northwest, damage assessment tools are needed to enable safety evaluations to support recovery. Currently, damage assessment is performed primarily by visual inspection and is often impossible for structural members that are inaccessible, such as deep foundations or interior members hidden by cladding. This study explores the possibility of using embedded ultrasonic transducers to monitor reinforced concrete members for damage progression under earthquake loading. A novel methodology is proposed where changes in the member condition due to an increase in the earthquake-type loading of a full-scale column-foundation specimen are correlated with changes in the recorded ultrasonic waveforms. The discussed preliminary analysis of the ultrasonic signals is based on wave propagation velocity, changes in the coda wave portion, and maximum amplitude of the signals. Three embedded transducers were used to continuously monitor the laboratory specimen during destructive testing. This paper provides an overview of the proposed methodology, outlines the laboratory experiment, and discusses some preliminary observations.zeige mehrzeige weniger

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Metadaten
Autor*innen:T. Schumacher, A. K. M. G. Murtuz, A. Hafiz, P. Dusicka, Ernst NiederleithingerORCiD
Persönliche Herausgeber*innen:I. Gabrijel, C. Grosse, M. Skazlić
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Proceedings of the International Conference on Sustainable Materials, Systems and Structures (SMSS2019) Novel Methods for Characterization of Materials and Structures
Jahr der Erstveröffentlichung:2019
Organisationseinheit der BAM:8 Zerstörungsfreie Prüfung
8 Zerstörungsfreie Prüfung / 8.2 Zerstörungsfreie Prüfmethoden für das Bauwesen
Herausgeber (Institution):RILEM
Verlag:RILEM Publications S.A.R.L.
Verlagsort:Paris, France
Erste Seite:112
Letzte Seite:119
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurbau
Freie Schlagwörter:Concrete; Monitoring; Ultrasound; earthquake
Themenfelder/Aktivitätsfelder der BAM:Infrastruktur
Veranstaltung:International Conference on Sustainable Materials, Systems and Structures (SMSS 2019)
Veranstaltungsort:Rovinj, Croatia
Beginndatum der Veranstaltung:20.3.2019
Enddatum der Veranstaltung:22.3.2019
DOI:10.1007/978-3-031-07258-1_84
ISBN:978-2-35158-227-5
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:01.04.2019
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:14.11.2022
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