Abstract:
In most cases, assessments of bridge condition are based on visual inspections, and bridge ratings are determined by simple analytical methods without use of data on bridge response. Estimates of bridge load-carrying capacity generated in this manner tend, for good reason, to be fairly conservative. Reliable assessments of condition are essential to ensure the safety of the traveling public. Furthermore, because load-carrying capacity is often used to prioritize bridges for repair, rehabilitation, and replacement and funds for these actions are limited, it is more important than ever that these estimates be as accurate as possible. To achieve this goal, researchers at the University of Delaware have been working with engineers at the Delaware Department of Transportation to improve the state's ability to evaluate a wide range of bridges through a variety of field-testing methods. The study produced an overview of field-testing methods and of the impact of testing on bridge management in Delaware.
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