1. Grid Based Distributed Hybrid Testing Mobin Ojaghi, Javier Parra-Fuente, Kashif Saleem, Anthony Blakeborough, Martin S. Williams. Department of Engineering Science, University of Oxford. Paper 798 11.9.07

2. Theme Grid technology applied to earthquake engineering testing to facilitate distributed hybrid testing. UK-NEES (UK Network for Earthquake Engineering Testing)

3. Overview Earthquakes and earthquake engineering testing Hybrid testing Pseudo-dynamic and fast/real time hybrid testing Distributed hybrid testing NEES and UK-NEES Proposed architecture Grid architecture example Future work Related work

4. Earthquakes Sumatra Earthquake and Tsunami of 2004 Kobe 1995 Northridge 1994

5. Earthquake Engineering Testing Large scale Numerical Hybrid pseudo-dynamic fast/real time Distributed hybrid testing

6. Large Scale Testing

7. Hybrid Testing

8. NEES NEES Partnership with National and International Initiatives

9. UK-NEES Tele-observation Tele-participation Tele-operation Distributed hybrid testing On-line data access

10. UK-NEES Components NEES Equipment: Test Specimen, actuators, sensors, hydraulic controls, etc. Data Acquisition System (DAQ): Acquires data from research Equipment. NEES “Point of Presence” (NEES POP): Provides a home for NEES grid services at the equipment site. Hybrid Testing Node: Synchronizes and runs the geographically distributed hybrid tests.

11. Distributed Hybrid Test Architecture

12. Physical Model Node Architecture

13. Structure of a 5-floor Building Set Up for Hybrid Testing

14. Data Simulation of Physical Component Nonlinear Viscous Damper

15. Hybrid Testing Architecture Developed

16. Response from 5 th Floor to El- Centro NS Earthquake Storey drift is directly related to damage

17. Future Work Distributed Hybrid Testing Architecture

18. Related Work Grid technology in related projects US-NEES NZ-NEES JST (Japanese Science and Technology) International Solid Earthquake Research Virtual Observatory (ISERVO)

19. Conclusions Grid architecture allows expensive physical equipment located in different sites to work together to develop bigger distributed simulations, much larger than could be carried out due to cost and space limitations in any one lab. UK-NEES is the first grid network to be created in the UK to enable distributed hybrid testing. The grid architecture shown enables connection of heterogeneous hardware platforms at different nodes and user friendly software will allow viewing and participation in testing offering a smooth running solution for collaborative distributed testing.