Processing Ultrasonic Data by Coda Wave Interferometry to Monitor Load Tests of Concrete Beams
Ultrasonic transmission measurements have been used for decades to monitor concrete elements, mostly on a laboratory scale. Recently, coda wave interferometry (CWI), a technique adapted from seismology, was introduced to civil engineering experiments. It can be used to reveal subtle changes in concr...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-06-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/18/6/1971 |
| _version_ | 1818001883488321536 |
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| author | Ernst Niederleithinger Xin Wang Martin Herbrand Matthias Müller |
| author_facet | Ernst Niederleithinger Xin Wang Martin Herbrand Matthias Müller |
| author_sort | Ernst Niederleithinger |
| collection | DOAJ |
| description | Ultrasonic transmission measurements have been used for decades to monitor concrete elements, mostly on a laboratory scale. Recently, coda wave interferometry (CWI), a technique adapted from seismology, was introduced to civil engineering experiments. It can be used to reveal subtle changes in concrete laboratory samples and even large structural elements without having a transducer directly at the place where the change is taking place. Here, several load tests until failure on large posttensioned concrete beams have been monitored using networks of embedded transducers. To detect subtle effects at the beginning of the experiments and cope with severe changes due to cracking close to failure, the coda wave interferometry procedures had to be modified to an adapted step-wise approach. Using this methodology, we were able to monitor stress distribution and localize large cracks by a relatively simple technique. Implementation of this approach on selected real structures might help to make decisions in infrastructure asset management. |
| first_indexed | 2024-04-14T03:40:00Z |
| format | Article |
| id | doaj.art-dd07adbab36b4502bafa77da795ceab2 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T03:40:00Z |
| publishDate | 2018-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-dd07adbab36b4502bafa77da795ceab22022-12-22T02:14:36ZengMDPI AGSensors1424-82202018-06-01186197110.3390/s18061971s18061971Processing Ultrasonic Data by Coda Wave Interferometry to Monitor Load Tests of Concrete BeamsErnst Niederleithinger0Xin Wang1Martin Herbrand2Matthias Müller3Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205 Berlin, GermanyBundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205 Berlin, GermanyRWTH Aachen University (now WTM Engineers GmbH), Templergraben 55, 52062 Aachen, GermanyBundesanstalt für Straßenwesen (BASt), Bruederstr. 53, 51427 Bergisch Gladbach, GermanyUltrasonic transmission measurements have been used for decades to monitor concrete elements, mostly on a laboratory scale. Recently, coda wave interferometry (CWI), a technique adapted from seismology, was introduced to civil engineering experiments. It can be used to reveal subtle changes in concrete laboratory samples and even large structural elements without having a transducer directly at the place where the change is taking place. Here, several load tests until failure on large posttensioned concrete beams have been monitored using networks of embedded transducers. To detect subtle effects at the beginning of the experiments and cope with severe changes due to cracking close to failure, the coda wave interferometry procedures had to be modified to an adapted step-wise approach. Using this methodology, we were able to monitor stress distribution and localize large cracks by a relatively simple technique. Implementation of this approach on selected real structures might help to make decisions in infrastructure asset management.http://www.mdpi.com/1424-8220/18/6/1971ultrasoundconcretemonitoringcoda wave interferometry |
| spellingShingle | Ernst Niederleithinger Xin Wang Martin Herbrand Matthias Müller Processing Ultrasonic Data by Coda Wave Interferometry to Monitor Load Tests of Concrete Beams Sensors ultrasound concrete monitoring coda wave interferometry |
| title | Processing Ultrasonic Data by Coda Wave Interferometry to Monitor Load Tests of Concrete Beams |
| title_full | Processing Ultrasonic Data by Coda Wave Interferometry to Monitor Load Tests of Concrete Beams |
| title_fullStr | Processing Ultrasonic Data by Coda Wave Interferometry to Monitor Load Tests of Concrete Beams |
| title_full_unstemmed | Processing Ultrasonic Data by Coda Wave Interferometry to Monitor Load Tests of Concrete Beams |
| title_short | Processing Ultrasonic Data by Coda Wave Interferometry to Monitor Load Tests of Concrete Beams |
| title_sort | processing ultrasonic data by coda wave interferometry to monitor load tests of concrete beams |
| topic | ultrasound concrete monitoring coda wave interferometry |
| url | http://www.mdpi.com/1424-8220/18/6/1971 |
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