Sustainability-based Long-term Management of Bridges under Multi-hazard Exposure

Bridges are crucial elements in transportation networks. During their service life, these structures are subjected to several types of natural hazards that can affect their safety and sustainability. The current methods for optimum management of these structures fail to properly consider (a) the cumulative effects of natural hazards, (b) the effect of changing climate patterns, and (c) the comprehensive integration of sustainability and resilience measures. The proposed research addresses these shortcomings by constructing a sustainability-based framework for the optimum management of bridges under multi-hazard exposure. The simulation-based framework will consider the uncertainties associated with performance prediction under gradual deterioration (e.g., corrosion in the sub- and superstructure) and sudden hazards in evaluating the bridge performance. A simulation-based technique will be constructed for evaluating the bridge fragility (i.e., failure probability) under multi-hazard exposure. The results of these simulations will be used to perform probabilistic loss analysis integrating economic, social, and environmental sustainability metrics. This analysis will result in obtaining the long-term bridge sustainability-based risk profiles associated with exposure to possible hazards. A multi-criteria optimization will be implemented to establish optimum retrofit and repair activities (e.g., optimum times and types) which simultaneously minimize life-cycle cost and maximize sustainability metrics. The developed framework could be implemented by bridge officials to manage the existing stock of deteriorating bridges allowing them to reduce the life-cycle cost and improve bridge sustainability.

Language

• English

Project

• Status: Active
• Funding: $110000
• Contract Numbers:

  17STOKS01

• Sponsor Organizations:

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Managing Organizations:

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590

  Transportation Consortium of South-Central States

  Louisiana State University
  Baton Rouge, LA  United States  70803
• Project Managers:

  Ahmed, Samir

• Performing Organizations:

  Oklahoma State University, Stillwater

  School of Civil & Environmental Engineering
  207 Engineering South
  Stillwater, OK  United States  74078
• Principal Investigators:

  Soliman, Mohamed

• Start Date: 20170508
• Expected Completion Date: 20181108
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers Program

Subject/Index Terms

• TRT Terms: Bridge engineering; Climate change; Highway bridges; Life cycle costing; Management; Optimization; Service life; Structural analysis; Sustainable development
• Subject Areas: Bridges and other structures; Freight Transportation; Highways; Maintenance and Preservation; Security and Emergencies;

Filing Info

• Accession Number: 01635021
• Record Type: Research project
• Source Agency: Transportation Consortium of South-Central States
• Contract Numbers: 17STOKS01
• Files: UTC, RiP
• Created Date: May 18 2017 12:45PM