Infrared Thermography For Civil Structural Assessment: Demonstrations With Laboratory And Field Studies

Keywords

Bridge deck inspection; Infrared thermography; IR data processing; IR photography angle; Non-Destructive Evaluation

Abstract

A detailed investigation of infrared thermography (IRT) for civil structures is presented by considering different technologies, data analysis methods and experimental conditions in the laboratory and also in the field. Three different types of infrared (IR) camera were compared under active IRT conditions in the laboratory to examine the effect of photography angle on IRT along with the specifications of cameras. It is found that when IR images are taken from a certain angle, each camera shows different temperature readings. However, since each IR camera can capture temperature differences between sound and delaminated areas, they have a potential to detect delaminated area under a given condition in spite of camera specifications even when they are utilized from a certain angle. Furthermore, a more objective data analysis method than just comparing IR images was explored to assess IR data, and it is much easier to detect delamination than raw IR images. Specially designed laboratory and field studies show the capabilities, opportunities and challenges of implementing IRT for civil structures.

Publication Date

7-1-2016

Publication Title

Journal of Civil Structural Health Monitoring

Volume

6

Issue

3

Number of Pages

619-636

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1007/s13349-016-0180-9

Socpus ID

84979699711 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84979699711

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