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Transportation networks are modeled in the form of links and nodes. Links represent the highways, while the nodes representing bridges connecting the highways which act as hubs for several links. Closure of a single bridge within the transportation network can lead to substantial disruption to the entire network. For example, the local damage of the I-65 North overpass bridge in Alabama in January 2002 (due to truck accidental explosion) caused a traffic interruption for almost 50 days. Assessment of risk and resilience of existing bridges and new bridges, including ABC bridges, accelerated upgrade, and accelerated repair is important to devise pre-hazard preparedness plans and post-hazard mitigation response strategies and recovery time. This project seeks to document and synthesize the current state of practice related to assessment of risk and resilience of bridges and other structures and conducting target surveys to identify the current state of practice with transportation agencies and cities. The collected information will be utilized to develop holistic resilience and risk assessment framework for existing and new bridges, including ABC bridges, accelerated upgrade (enhanced robustness), and accelerated repair (enhanced rapidity), under multi-hazards to emphasis on accelerated construction benefits. Finally, the project will develop a specific resilience framework for seismic hazard. Other hazards will be developed in future research opportunities. The success of this project will promote ABC nationwide to stakeholders as the most suited construction method for resilient bridges and transportation infrastructures.
1- Documenting the current state of practice related to assessment of risk and resilience of bridges nationally and internationally.
2- Synthesizing the state of practice related to assessment of risk and resilience of other structures (such as buildings and nuclear facilities) against man-made and natural hazards with the goal of identifying frameworks and assessment tools can be readily adopted for bridges.
3- Conducting target online survey for state DOTs and cities to evaluate the practice and efficacy of existing bridge performance tools.
4- Developing a holistic resilience and risk assessment framework for existing and new bridges, including ABC bridges, accelerated upgrade, and accelerated repair, under multi-hazards to emphasis on accelerated construction benefits, and
5- Developing a specific resilience framework for seismic hazard as an example of natural hazards. The success of this project will motivate the multi-institutional team to continue seeking funds in Cycle 5 and from other sources to complete the entire
framework for different hazards such as flooding, fire, tsunami and chronic environmental stressors.
Task 1 – Conducting a literature review on risk and resilience of roadway bridges under natural and man-made hazards.
Task 2– Conducting a target survey for state DOTs and cities using online survey service to evaluate the current practice and efficacy of existing bridge performance assessment tools
Task 3– Development of holistic resilience and risk assessment framework of existing and new bridges under multi-hazards to emphasis on accelerated construction benefits
Task 4– Development of a specific resilience framework
Task 5– Final Report
Research Team: This project is collaborative research project between Florida International University, University of Oklahoma, University of Nevada, Reno
Principal Investigator: Dr. Islam M. Mantawy, Florida International University
Dr. Musharraf Zaman, University of Oklahoma
Dr. Mohamed Moustafa, University of Nevada, Reno
Co-Principal Investigator: Edward Cokely, University of Oklahoma
Research Assistant: TBD