Experts are becoming concerned about the standard visual inspections and conventional bridge analysis currently used in traditional inspection of bridges. This article describes some expert detection systems being researched to spot structural flaws before disaster occurs. Work is reported that will eventually detect cracks that are not visible to the naked eye. The flaw detection system will also signify when a bridge or critical structure is not in imminent danger of collapse. Indeed, it is believed that the estimation of deficient bridges is actually bloated because rating methods are punitive. Work at Duke University is described in which the detection system's equipment is able to find which girder has a problem and in what area. However, accurate interpretation is still a problem. The University of Colorado is researching the rating of the load capacity of 30 bridges across the country to determine whether or not the trucks riding on these bridges are at overload. Nondestructive diagnostic load test on a typical 100-year-old, single span, train structure is also described.

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  • Accession Number: 00494623
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 30 1990 12:00AM