Identification of Pathologies in Bridges Using Infrared Thermography

摘要

The bridges are essential for the development of cities. To maintain the appropriate safety standard for its functionality, routine inspections are necessary to check the parts that need maintenance. Currently, these inspections are carried out visually and through resistance and durability tests. Despite this, it is observed that some regions cannot be detected during the common visual inspection. Thus, this research aims to perform the inspection of a bridge using the technique of infrared thermography. The inspection was carried out in the morning, without rain and with parameters set so as not to interfere with the results of the analysis. Considering the refraction of the positive and negative heat observed in the inspections carried out in the morning, it was possible to point out the existence of humidity in the verified areas, which was confirmed through visual inspection. In the presence of cracks, it was possible to detect the existence of moisture inside them. Thus, it is possible to conclude that the use of infrared thermography is a very promising technique for the inspection of bridges..