Detection of gap in concrete-metal structures using piezoelectric sensor technique

Paritosh Giri, Sergey Kharkovsky

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

3 Citations (Scopus)

Abstract

A piezoelectric sensor technique has been proposed for non-invasive detection of gap between metal and concrete in concrete-metal composite structures such as concrete-filled steel tubes. This technique includes piezoelectric transducers attached to the external surface of the metal. The sine burst signal is generated by an actuator using a signal generation unit which propagates along the metal and is received by a sensor. The signal received by the sensor without gap is taken as a reference and compared with the signal at different gaps. Two different specimens based on concrete block are measured, one with a steel plate and another with an aluminium plate. Statistical indexes including correlation coefficient, peak-to-peak amplitude of resultant signal and root mean square deviation are used for comparison and quantitative analysis of gap. The proposed technique is able to detect gap value as low as 0.1 mm and it demonstrates the applicability of this technique for gap detection in concrete-filled steel tubes.
Original languageEnglish
Title of host publicationI2MTC 2017
Subtitle of host publicationIEEE International Instrumentation and Measurement Technology Conference Proceedings
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1-5
Number of pages5
ISBN (Electronic)9781509035960
ISBN (Print)9781509035977
DOIs
Publication statusPublished - 22 May 2017
Externally publishedYes
Event2017 IEEE International Instrumentation and Measurement Technology Conference - Politecnico di Torino, Turin, Italy
Duration: 22 May 201725 May 2017
http://2017.imtc.ieee-ims.org/

Conference

Conference2017 IEEE International Instrumentation and Measurement Technology Conference
Abbreviated titleI2MTC
CountryItaly
CityTurin
Period22/05/1725/05/17
Internet address

Keywords

  • gap
  • composite structure
  • piezoelectric transducers
  • non-invasive inspection
  • concrete-metal interface
  • concrete-filled steel tube

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