Current Activities at the MUST-SIM Facility NEEShub Site Visit to UIUC July 23, 2010

1. Current Activities at the MUST-SIM Facility NEEShub Site Visit to UIUC July 23, 2010 Dan Kuchma, Greg Pluta, Thomas Frankie, and Aditya Bhagath Illinois NEES Facility Department of Civil and Environmental Engineering University of Illinois

2. Content of Presentation • CABER Project • 3-Pier Simulation • Test Structure • Hybrid Testing • EOT Efforts • Shear-Torsion Interaction • Data-Rich Video Production • Access Portal

3. Limitations of Hybrid Simulation Simple Bridge Model Earthquake Excitation Courtesy of National Taiwan University • Only relatively simple systems to date • Structures and earthquakes are 3D • Loading is generally simplified • True actions are complex 6DOF load and boundary conditions

4. NEES CABER Project • Curved Bridge with 3 Piers • 2 Large Scale Piers • 1 Small Scale Pier • Considerations • Curved/skewed • Uneven spans/heights • Soil/foundation interaction • Multi-directional motions

5. Details of Structure 100 ft 150 ft 75 ft 75 ft 75 ft Bent 2 Bent 1 Bent 3 R = 660ft Abut 1 Abut 2 22.5 ft 28.5 ft 37.5 ft To be tested using LARGE scale LBCBs To be tested using LARGE scale LBCBs To be tested using SMALL scale LBCBs Box Girder section Cap beam section

6. Data Acquisition • Traditional – 244 Channels • 152 Strain Gages • 56 Linear Potentiometers • 24 String Potentiometers • 12 LVDTs • Krypton • 50 LEDS • Cameras • 5 High Resolution Still Cameras • 1 High Resolution Video Camera • 1 Telepresence Camera • Control Instrumentation

7. Specimen Fabrication

8. Small Scale Specimen Validation

9. Finite Element Analysis Y X Z X Y Z Y X Z

10. Loading on Structure • Sequence of Imposed Records • Level 1 (cracking) • Level 2 (yielding) • Level 3 (design level) • Level 4 (failure)

11. Hybrid Simulation Fz My Mx Fy Fx My Calc Forces {u} Target Disp. Computational component Simulation Coordinator {F} Measured forces Experimental component Measure forces

12. EOT Efforts • Creation of Modular Videos • Shear-Torsion Interaction selected as test case • Portal to Access Videos, Data, and Activities • Education Outreach and Training • K-12 • Freshmen Level • Senior/Grad Level • Researchers • Practitioners

13. Experimental Test Case Tests on 5 small piers

14. Experimental Results

15. Displaying Response

16. Interaction Effects

17. Video Production Sequence Steps • Script written over several iterations • Detailed subsections • Detailed directions for video editing • Visual components • Test videos created in Matlab • Powerpoint images and animations • CAD drawings • Internet images • Review and voice over by professional speaker • Video created in Adobe Premiere in 1080p

18. Video Production Sequence Matlab-Generated Video

19. Video Production Sequence Video Created in Adobe Premiere

20. Online Portal

21. Potential Framework • NEES researchers create first draft of video scripts and images, animations, and clips and then submit to NEEScomm for review and comments • NEEScomm arranges for voice over and produces videos • Learning modules formed from videos and test data • Videos, metadata, and activities are provided in the Portal format

22. Next Steps Continue iterations to refine current video; produce video components for reaching a variety of audiences Create teaching module(s) with video segments and access to structural details and test data Revise and update interface of Portal Explore frameworks for creating videos/modules: Listen and respond to feedback

23. Closure "In the examination of physical problems I begin by making a few experiments, because it is my desire to state the problem after I have had the experience of it . . . we must commence with experience, and strive by means of it to discover truth.“ Leonardo da Vinci 1452 – 1519 Questions?