Reliability-Based Assessment of Corps Structuresby Mary Ann Leggett, Information Technology Lab, Vicksburg, United States,
Abstract: 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 | Structural models | Rehabilitation | Traffic models | Economic factors | Risk management | Mathematical models
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