Acoustic emission monitoring of bridge structures in the field and laboratory

Pullin, Rhys ORCID: https://orcid.org/0000-0002-2853-6099, Holford, Karen Margaret ORCID: https://orcid.org/0000-0002-3239-4660, Lark, Robert John ORCID: https://orcid.org/0000-0002-1796-5321 and Eaton, Mark Jonathan ORCID: https://orcid.org/0000-0002-7388-6522 2008. Acoustic emission monitoring of bridge structures in the field and laboratory. Journal of Acoustic Emission 26 , pp. 172-181.

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Abstract

Cardiff University, in association with Physical Acoustics Limited, has been actively promoting the use of acoustic emission (AE) to monitor bridge structures as part of any bridge maintenance procedure since the early 1990’s, both in concrete and steel bridge structures. Scepticism of the capabilities of AE by bridge authorities has led to a large number of laboratory research projects being completed to demonstrate and validate the technique and support field results. This paper presents the findings of two field investigations with extensive laboratory support. One is a box-girder bridge structure where a fatigue fracture was located on an internal diaphragm both on a real structure and a scale model and of the second is a steel-reinforced concrete structure where regions of possible concrete micro-fracture around steel reinforcing bars was detected. Both investigations demonstrate the capabilities of AE as a diagnostic tool as part of any bridge maintenance programme.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Publisher:	Accoustic Emission Group
ISSN:	0730-0050
Related URLs:	http://www.aewg.org/jae/JAE-Vol_26-2008....
Last Modified:	05 Jan 2024 06:13
URI:	https://orca.cardiff.ac.uk/id/eprint/66564

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