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Current NEESR Projects and Potential Applications at MUST-SIM Jerry Hajjar University of Illinois.

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Presentation on theme: "Current NEESR Projects and Potential Applications at MUST-SIM Jerry Hajjar University of Illinois."— Presentation transcript:

1 Current NEESR Projects and Potential Applications at MUST-SIM Jerry Hajjar University of Illinois

2 Possible Application

3 NEESR-SG 2005  Pre-NEESR Multi-Site Soil-Structure-Foundation Interaction Test (MISST), Bill F. Spencer, Amr S. Elnashai, Dan Kuchma (University of Illinois); Jim Ricles (LeHigh); Tarek Abdoun and Ricardo Dobry (RPI, change to full)  NEESR-SG: Seismic Behavior, Analysis and Design of Complex Wall Systems, Laura Lowes and Dawn Lehman (University of Washington); Dan Kuchma (University of Illinois) and Jian Zhang (University of California Los Angeles)  NEESR-SG: Seismic Simulation and Design of Bridge Columns under Combined Actions and Implications On System Response, David Sanders (University of Nevada – Reno), Abdeldjelil Belarbi (University of Missouri –Rolla), Amr Elnashai (University of Illinois), etc

4 NEESR-SG 2005  NEESR-SG: Innovative Applications of Damage Tolerant Fiber-Reinforced Cementitious Materials for New Earthquake Resistant Systems and Retrofit of Existing Structure, James White (University of Michigan), Sarah L. Billington (Stanford University), James LaFave (University of Illinois)  NEESR-SG: Controlled Rocking of Steel-Framed Buildings with Replaceable Energy Dissipating Fuses, Greg Deierlein and Sarah Billington (Stanford University), Jerry Hajjar (University of Illinois)  NEESR-GC: SEISMIC RISK MITIGATION FOR PORT SYSTEMS, Glenn Rix and Reggie DesRoches (George Tech), Doug Foutch (University of Illinois), etc

5 Multi-Site Soil-Structure-Foundation Interaction Test (MISST) At UIUC: Bill F. Spencer, Amr S. Elnashai, Dan Kuchma At Lehigh: Jim Ricles At RPI: Tarek Abdoun and Ricardo Dobry

6 Introduction  The MISST was intended to provide a realistic test bed application with which to verify –all components of the NEESgrid –all components of the sites taking part in the distributed simulation  The behavior of a complex bridge structure including soil-structure interaction will be investigated  The collaborating partners of MISST –University of Illinois at Urbana-Champaign (UIUC) –Lehigh University (Lehigh) –Rensselaer Polytechnic Institute (RPI)

7 Test Structure  The MISST structure is based on the Collector-Distributor 36 of the I-10 Santa Monica Freeway –It was damaged during the 17 January 1994 Northridge Earthquake –Unusual pattern of failure  Idealization of the original structure –To utilize current NEES experimental facilities and for simplification –Large-scale NEES facilities of both UIUC and Lehigh University, –Advanced geotechnical modeling and possible centrifuge test at RPI

8 Multi-Site Simulation  The structure is subdivided into 5 static modules  MISST utilizes several aspects of simulation that will comprise many of the applications of the NEES experimental sites and NEESgrid by including: –Advanced analytical geotechnical modeling (or testing) –Advanced analytical structural modeling –Advanced structural testing using multi-degrees-of-freedom testing facilities

9 Pretest with UIUC and Lehigh Test Schedule Large Scale TestAprilMay Small Scale Test Test Setup Small Amplitude Test Large Amplitude Test

10 Damage to the Santa Monica Freeway Collector-Distributor 36

11 UI-SIMCOR UIUC Lehigh RPI NCSA RPI Multi-Site Simulation System NEESgrid Sub-Structuring Technique

12 Comparison Damage to the Santa Monica Freeway Failure in the Earthquake Failure in the Laboratory

13 Preliminary Pier Test at UIUC

14 MISST Experimental Setup Multi-site pseudo-dynamic test allows us to investigate seismic behavior of large- scale structural system with soil-structure interaction using NEESgrid environment. Multi-site simulation framework has been theoretically verified to be effective.

15 NEESR-SG: Seismic Behavior, Analysis and Design of Complex Wall Systems At UWash: Laura Lowes and Dawn Lehman At UIUC: Dan Kuchma At UCLA: Jian Zhang

16 Experimental Test Program Moment Gradient SSI Boundary Conditions Unidirectional Loading Bidirectional Loading Planar (2) Flanged Coupled Core-Wall System Load History

17 Figure 3 Analysis of Coupled-Wall System Planar Wall Tests

18 C-Shaped Wall Tests  Depiction of a test specimen in the UIUC NEES facility

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21 NEESR-SG-2005 Seismic Simulation and Design of Bridge Columns under Combined Actions, and Implications on System Response University of Nevada, Reno University of Illinois, Champaign-Urbana University of Missouri, Rolla University of California, Los Angeles Washington University, St. Louis

22 Causes of Combined Actions  Functional Constraints - curved or skewed bridges  Geometric Considerations - uneven spans or different column heights  Multi-directional Earthquake Motions - significant vertical motions input or near field fling impacts  Structural Constraints - stiff deck, movement joints, soil condition and foundations

23 Small Scale Testing Facility, UIUC

24 Shake Table Facility, UNR

25 UMR Shaking Table Program PI - Belarbi

26 UIUC – Simulation Program PI - Elnashai

27 UNR Testing Program PI and Project Coordinator - Sanders

28 International Cooperation  University of Mexico  E-Defense

29 Analysis, Education and Outreach  Analysis ●System analysis at UCLA (Jian Zhang) ●Distributed (hybrid & analysis) at UIUC (Elnashai)  Education and Outreach ●Education site and web models at WU (Dyke) ●Outreach visits and hosting by all

30 Outcome  Member Tests ●Effect of design and detailing on failure of members under multi-axial (axial, bending, shear, torsion) conditions ●Recommended design guidance on member level  Bridge Simulations ●Effect of multi-axial excitation on bridge response ●Design recommendations on the system level

31  There are Currently No Slides from Projects 4, 5, and 6  There are slides from the Building Group project as shown in the next 3 slides

32 W24x68 W30x116 W30x90 W24x68 W30x116 W30x90 W24x68 W30x116 W30x90 W14x283 W14x211 W14x283 Building Test Computational component Experimental component

33 Building Test Pseudodynamic testing and analysis of steel frames exhibiting flexible connections

34 Full Scale Model

35 Education and Outreach  University of Washington Open House (April 2005): teleobservation and teleoperation  Discovery Engineering Program, University of Illinois (July 2005)  Engineering Open House (March 2005)  Visitors….


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