1. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 1 System Observability, Diagnosis, and Prognosis Yr 5 Project Team: Dr Rudi Seracino (PI) Mrs Anna Harris Clark (MS graduate) Mr Hao Hu (PhD candidate)

2. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 2 Project Overview Failure causes and events Number of occurrencesPercentage of total Hydraulic 26653 Flood 16533 Scour 7816 Collision 5912 Overload 449 Deterioration 439 Types and number of failures (Wardhana et. al., 2003)

3. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 3 Develop a vibration-based damage detection framework to: Create a prognostics framework to evaluate the condition of critical life-line bridge infrastructure prior to an event to enhance resilience. Rapidly assess scour and other flood related damage of critical life-line bridge infrastructure following an event to inform decision makers about the condition of evacuation and first responder routes; and Overall Objectives

4. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 4 Enhanced community resilience, system robustness and capacity for recovery by: Increasing resilience to disasters by enhancing preparedness; Enabling more efficient evacuation and emergency response; and Facilitating more rapid recovery. Project Relevance to DHS S&T Mission Mississippi & Missouri River Pacific NW & Atlantic Coast

5. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 5 Existing Scour Monitoring Techniques Sounding weights [Mueller et al., 1999] Echo Sounders [Mueller et al., 1999] Unmanned Marine Vehicle [Murphy et al., 2011] Vibrating rod [Zarafshan et al., 2012] Tiltmeters [Briaud et al., 2011]

6. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 6 G.L. N.G.L. scour HoHo Changes in response of the superstructure Scour Increase in pile’s unsupported height Decrease in support stiffness Basic Research Concept

7. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 7 Dynamic characteristics of superstructure Horizontally displaced mode shapes Extraction of damage features for changes in horizontal mode shape with scour depth Horizontal impact Accelerations due to impact used to create mode shapes Development of Scour Sensitive Damage Features

8. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 8 Numerical Modeling

9. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 9 58 in 42 in Laboratory Testing

10. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 10 Investigation Type Mode Shape Curvature (CDF) Mode Shape Curvature (MCDF) Flexibility based deflection Flexibility based curvature FEM of idealized structure **** Idealized Lab structure ********* FEM of existing bridge ******** * Damage located, ability to identify scour level ** Damage located, not able to identify scour level *** Damage not located, damage zone identified **** Damage location zone not identified Evaluation of Proposed Damage Features

11. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 11 Hwy 17 Northeast Creek Bridge, Jacksonville, NC Field Monitoring

12. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 12 Pile Cap Plan Area127.5 ft 2 Plan Area of Scoured Soil75 ft 2 Percent Loss of Soil59% Field Monitoring – NCDOT underwater inspection

13. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 13 Field Monitoring – Data collection

14. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 14 Field Monitoring – NCDOT scour repair

15. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 15 Field Monitoring – Data Analysis

16. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 16 Scour Location Scour Location Horizontal Mode Shape Curvature Horizontal Modified Mode Shape Curvature Scour Location Flexibility Deflection Field Monitoring – Data Analysis Scour Location Flexibility Deflection Curvature

17. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 17 Investigation Type Mode Shape Curvature (CDF) Mode Shape Curvature (MCDF) Flexibility based deflection Flexibility based curvature FEM of idealized structure **** Idealized Lab structure ********* FEM of existing bridge ******** Northeast Creek Bridge *******“*”**** FEM of Northeast Creek Bridge “*”***“*” * Damage located, ability to identify scour level ** Damage located, not able to identify scour level *** Damage not located, damage zone identified **** Damage location zone not identified Evaluation of Damage Features

18. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 18 Translation Activities Dissemination via publication of research theses, international archival journal articles, and peer reviewed conference papers. Engagement of public and private sector end users. Participating in outreach activities. Contributing to NC State University’s “Design Your Own” program – 2-hr short course delivered to engineering professionals. Developing a module for a new graduate course on “Structural Health Monitoring of Civil Infrastructure”. Fostering the potential for commercialization of research outcomes.

19. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 19 Currently engaged end users (1)Infrastructure (bridge) owners technical knowledge, personnel, equipment e.g. NCDOT bridge maintenance engineers and hydraulics engineers (2)Private sector consultants technical knowledge, ability to transfer knowledge products to application products e.g. FDH Engineering Inc

20. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 20 Work Plan Complete the development of the relationship between the change in magnitude of the damage feature to the extent of scour. Demonstrate the use of existing numerical and analytical models to relate the extent of scour to the residual strength of typical bridge foundations. Continued field monitoring of Jennette’s Pier and one additional scour prone bridge in coastal NC. Produce guidelines and recommendations for the implementation of future field monitoring using the proposed technique. Continue to actively engage end users representative of the public and private sectors.

21. Research Lead  The University of North Carolina at Chapel Hill CHC-R 5 th Annual Meeting January 31-February 1, 2013 21 Products Paper won the Certificate of Achievement for Excellence in Research at the Department of Homeland Security 5 th Annual Student Paper Competition Poster won the American Council of Engineering Companies of North Carolina (ACEC/NC) Student Design Champion grand prize Best Poster Award at the 11 th Structural Engineering and Mechanics (SEM) Symposium PhD awarded - 2010 PhD awarded - 2011 MS awarded - 2012 PhD candidate (Spring 2014) 2 journal articles published 2 journal articles submitted 5 refereed conference papers Awards Products