Reliability-Based Assessment of Corps Structures

by Mary Ann Leggett, Information Technology Lab, Vicksburg, United States,

Document Type: Proceeding Paper

Part of: Risk-Based Decision Making in Water Resources VI


Due to the limited amount of funding available for maintenance, rehabilitation, and replacement of aging Corps structures, the director of civil works, Headquarters, U.S. Army Corps of Engineers (HQUSACE) requested a regional assessment of future modernization needs in 1989. In 1990, the Inland Waterways User's Group began formulating this information into an economic traffic-based national evaluation model. As work on this model progressed, the user's group realized that a structure's condition should also be considered. A multidisciplinary team was assembled by the structures branch of the engineering division at HQUSACE to determine the feasibility of modeling a structure's condition. This team established the basis of a methodology for a reliability-based engineering assessment model for Corps structures. Output from the formulated procedure is now required as input into a risk-based economic model that is used to assess Corps structures under consideration for major rehabilitation.

Subject Headings: Structural reliability | Economic factors | Structural analysis | Traffic models | Risk management | Traffic analysis | Mathematical models | Structural models | United States

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