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How to improve transportation system? Extreme Events

Amir Mirmiran Dean and Professor College of Engineering and Computing Florida International University Miami, FL. How to improve transportation system? Extreme Events. Outline. Infrastructure and the Community. Urban Community. Physical Infrastructure. Human Services. Natural Systems.

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How to improve transportation system? Extreme Events

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  1. Amir Mirmiran Dean and Professor College of Engineering and Computing Florida International University Miami, FL How to improve transportation system? Extreme Events

  2. Outline

  3. Infrastructure and the Community Urban Community Physical Infrastructure Human Services Natural Systems

  4. Infrastructure Systems Critical Facilities Communication Oil and Gas Power Grid Water & Sewer Transportation

  5. System interdependencies O’Rourke (2007)

  6. Mcdaniels et al. (2007) McDaniels et al. (2007)

  7. Rinaldi, et al. (2007)

  8. Steady stressors • Aging, fatigue and deterioration => Capacity • Population growth and developments => Demand • Transient stressors • Natural hazards • Hurricanes, earthquakes, flooding, fire, etc. • Man-made hazards • Terrorist attacks Sources of stress on infrastructure

  9. Aging: Fatigue and deterioration

  10. Hurricane impact

  11. Earthquake impact

  12. Tornados and Hurricanes - $ 3.5B/yr (far more after Katrina) – Population in hurricane prone coastal areas is increasing • Floods - $ 5B/yr – Development in flood plains and increase in heavy rains • Earthquakes - $ 4-5B/yr – 39 states and 75m people are exposed to earthquake hazard Losses from Natural Hazards

  13. General approach • Performance-based design • Consequence-based risk management • Specific methods • Capacity building • Hardening • Health monitoring In search of Solutions

  14. Resilience and sustainability measures • Life safety versus functionality levels • Total cost modeling • Redundancy Performance-based design

  15. Performance-based design Structures Magazine

  16. Consequence-based risk management

  17. Full-scale hurricane testing

  18. infrastructure component testing Chowdhury/Bitsuamlak (FIU)

  19. High performance materials (steel, concrete) • Fiber reinforced polymers • Engineered cementitious composites • Shape memory alloys • Self healing concrete Advanced materials

  20. Advanced materials Mirmiran et al. (2007)

  21. Next generation of eq-res. bridges Saiidi (Nevada)

  22. Systems - Problem

  23. Ultra-high performance concrete (UHPC)-fiber reinforced polymer (FRP) tubes deck system. Component level analytical and experimental investigation were performed. Simply supported single span beams with typical width of 12 in. were designed and tested. Systems - Solution

  24. Self healing concrete Victor Li (U. Mich.)

  25. Hardening

  26. Hardening

  27. Health monitoring at ucf/lehigh

  28. Health monitoring at michigan

  29. ASCE report card for infrastructure • Challenges are at the interface of capacity, demand, and expectations • Resilience and sustainability are the goals • Research must be integrative rather than fragmental • Innovations will continue in materials, systems, and monitoring conclusions

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