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Assessment of foundation slabs with US-echo in the re-use process

  • During the re-use process of existing concrete memebers like foundations information about geometry and location of piles or strip foundation is necessary. Ultrasonic echo with a need of only one-sided access may provide this information and help the engineer to assess foundations. Cost effectiveness by the re-use of foundations gains an increasing economic role due to decreasing average economic lifetime of buildings on urban sites. Results of systematic ultrasonic echo investigations at a slab from 75 cm to 125 cm thickness with ten different reinforcement ratios are presented. The influence of the varying reinforcement ratio and thickness on the reliability of the results is shown. Available data-processing algorithms based on reconstruction calculation and imaging of results to reveal the geometry of a slab and the location of piles or strip foundations are introduced. Practical guidance for the application of ultrasonic echo and its limits are presented to ensure reliable results.During the re-use process of existing concrete memebers like foundations information about geometry and location of piles or strip foundation is necessary. Ultrasonic echo with a need of only one-sided access may provide this information and help the engineer to assess foundations. Cost effectiveness by the re-use of foundations gains an increasing economic role due to decreasing average economic lifetime of buildings on urban sites. Results of systematic ultrasonic echo investigations at a slab from 75 cm to 125 cm thickness with ten different reinforcement ratios are presented. The influence of the varying reinforcement ratio and thickness on the reliability of the results is shown. Available data-processing algorithms based on reconstruction calculation and imaging of results to reveal the geometry of a slab and the location of piles or strip foundations are introduced. Practical guidance for the application of ultrasonic echo and its limits are presented to ensure reliable results.zeige mehrzeige weniger

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Metadaten
Autor*innen:Alexander Taffe, Martin KrauseORCiD, Boris Milmann, Ernst NiederleithingerORCiD
Persönliche Herausgeber*innen:M. Alexander
Dokumenttyp:Beitrag zu einem Sammelband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Concrete repair, rehabilitation and retrofitting - proceedings of the International Conference on Concrete Repair, Rehabilitation and Retrofitting
Jahr der Erstveröffentlichung:2006
Verlag:Taylor & Francis
Verlagsort:London
Erste Seite:525
Letzte Seite:530
Freie Schlagwörter:Bildgebende Darstellung; Fundamentdicke; Objektortung; SAFT; Ultraschallecho; Wiedernutzung von Fundamenten; ZfP im Bauwesen
Veranstaltung:International Conference on Concrete Repair, Rehabilitation and Retrofitting (ICCRRR)
Veranstaltungsort:Cape Town, South Africa
Beginndatum der Veranstaltung:2006-11-21
Enddatum der Veranstaltung:2006-11-23
ISBN:0-415-39654-9
Bemerkung:
Serientitel: Balkema proceedings and monographs in engineering, water and earth sciences – Series title: Balkema proceedings and monographs in engineering, water and earth sciences
Verfügbarkeit des Dokuments:Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")
Bibliotheksstandort:Sonderstandort: Publica-Schrank
Datum der Freischaltung:19.02.2016
Referierte Publikation:Nein
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