Optimizing Lifetime Condition and Reliability of Deteriorating Structures with Emphasis on Bridges

Deterioration mechanisms of existing structures have been identified and studied over the last decades. Uncertainties associated with mechanical loadings and environmental stressors (e.g., chloride intrusion, freeze-thaw cycles) make it difficult to accurately predict the life-cycle performance of these structures. In general, deteriorating structures are maintained by periodical interventions based on their condition states. Available resources are limited and maintenance decisions resulting from management systems concentrating on condition states of deteriorating structures are not always cost effective. Therefore, the need for reliability-based structure management is evident. Models for time-based and performance-based (condition-based or reliability-based) maintenance strategies are applied in this study to a deteriorating bridge in Colorado. Several maintenance interventions are considered and combined. Realistic data consisting of condition, reliability, and cost of maintenance actions are used. Finally, the optimum maintenance strategy considering condition, reliability, and cost is selected based on different criteria.

• Record URL:
  • https://doi.org/10.1061/(ASCE)0733-9445(2008)134:4(544)
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339445
• Authors:
  • Petcherdchoo, Aruz
  • Neves, Luis A C
  • Frangopol, Dan M
• Publication Date: 2008-4

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 544-552
• Serial:
  • Journal of Structural Engineering
  • Volume: 134
  • Issue Number: 4
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9445
  • Serial URL: http://ascelibrary.org/loi/jsendh

Subject/Index Terms

• TRT Terms: Bridges; Case studies; Deterioration; Life cycle analysis; Maintenance management; Optimization; Reliability
• Geographic Terms: Colorado
• Subject Areas: Bridges and other structures; Design; Highways; Maintenance and Preservation; I24: Design of Bridges and Retaining Walls; I60: Maintenance;

Filing Info

• Accession Number: 01099073
• Record Type: Publication
• Files: TRIS
• Created Date: May 21 2008 7:03AM