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Comparison of Bridge Deterioration Rates

by David Veshosky, (M.ASCE), Lafayette Coll, Easton, United States,
Carl R. Beidleman, Lafayette Coll, Easton, United States,



Document Type: Proceeding Paper

Part of: Structures Congress XII

Abstract:

This paper presents the results of a study of rates of deterioration of steel and prestressed concrete bridge superstructures. The results indicate that age is the primary determinant of superstructure deterioration, followed by level of usage. Choice of structural material did not significantly affect superstructure deterioration rates. The study also found that deterioration of bridge superstructures takes the form of a convex function over time, with the rate of observed deterioration slowing as a bridge ages.

Subject Headings: Steel bridges | Concrete bridges | Infrastructure construction | Deterioration | Superstructures | Prestressing | Prestressed concrete

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