Strategies for Bridge Inspection Using Probabilistic Models

by Jamshid Mohammadi, Illinois Inst of Technology, United States,
G. John Yazbeck, Illinois Inst of Technology, United States,



Document Type: Proceeding Paper

Part of: Structural Safety and Reliability

Abstract:

This paper describes the application of probability analyses in planning an inspection program for highway bridges. When damage in the form of fracture and cracking is the major concern, the inspection time intervals may be formulated in terms of the load cycles, parameters describing the damage growth and a pre-defined critical damage level at which an inspection becomes necessary. This paper discusses the use of probabilistic modeling for estimating the critical time intervals between inspections. The probabilistic analysis is used mainly because the damage process is a random phenomenon. A method is developed and applied to the problem of cracking in reinforced concrete slabs in highway bridges.

Subject Headings: Highway bridges | Inspection | Probability | Concrete bridges | Reinforced concrete | Maintenance and operation | Cracking

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