Risk-based Life-cycle Management of Deteriorating Bridges

Bridges are among the most vulnerable, yet important, components of transportation networks. They are under continuous deterioration due to various environmental and mechanical stressors and are subjected to several types of extreme events which can lead to partial or total failure. Such failures are often accompanied by severe consequences including loss of life and significant social, economic, and environmental impacts. Accordingly, proper life-cycle management techniques must be implemented in order to mitigate the risk of such failures while taking into account strict budgetary constraints, as well as the uncertainties associated with the performance prediction of these deteriorating structures. Moreover, future climate change is expected to increase the deterioration rate and intensify the risk of failure of these structures. Unfortunately, most of our design, assessment, and management methodologies use past climate conditions when constructing new bridges or assessing the reliability of existing ones. Effects related to climate change, such as the increase in long-term annual average temperatures and the increase in frequency and magnitude of storms and flood events, and their impact on the Nation’s bridges, are still not well understood. Therefore, developing new infrastructure design, assessment, management, and adaptation methodologies capable of mitigating the risk related to climate change is of paramount importance.This research will develop a risk-based life-cycle management technique for bridges susceptible to failure due to scour and floods considering the long-term impact of climate change. A decision making tool will be formulated to assist in planning future adaptation and mitigation strategies. The developed tool will identify available adaptation strategies, as well as their effect on the risk profile, and perform stochastic optimization to obtain the optimum time and adaptation type required to reduce the risk of failure and extend the service life.

    Language

    • English

    Project

    • Status: Active
    • Funding: $145144
    • Contract Numbers:

      SPTC 15.1-12/DTRT13-G-UTC36

    • 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:

      Southern Plains Transportation Center

      University of Oklahoma
      201 Stephenson Pkwy, Suite 4200
      Norman, OK  United States  73019
    • 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: 20160401
    • Expected Completion Date: 20180930
    • Actual Completion Date: 0
    • USDOT Program: University Transportation Centers Program

    Subject/Index Terms

    Filing Info

    • Accession Number: 01607723
    • Record Type: Research project
    • Source Agency: University of Oklahoma, Norman
    • Contract Numbers: SPTC 15.1-12/DTRT13-G-UTC36
    • Files: UTC, RiP
    • Created Date: Aug 17 2016 1:03PM