Current NEESR Projects and Potential Applications at MUST-SIM

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Current NEESR Projects and Potential Applications
at MUST-SIM

• Jerry Hajjar
• University of Illinois

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Possible Application
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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

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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

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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

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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)

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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

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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

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Test Schedule
April April April April May May May May May
3 10 17 24 1 8 15 22 29

Small Scale Test
Large Scale Test
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Damage to the Santa Monica Freeway
Collector-Distributor 36
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Multi-Site Simulation System
Sub-Structuring Technique
NEESgrid
NCSA
Lehigh
UIUC
RPI
RPI
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Comparison Damage to the Santa Monica Freeway
Failure in the Earthquake
Failure in the Laboratory
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Preliminary Pier Test at UIUC
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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.

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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

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Experimental Test Program
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Planar Wall Tests
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C-Shaped Wall Tests

• Depiction of a test specimen in the UIUC NEES
  facility

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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
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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

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Small Scale Testing Facility, UIUC
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Shake Table Facility, UNR
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UMR Shaking Table Program
PI - Belarbi
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UIUC Simulation Program
PI - Elnashai
 
 
 
 
 
 
 
 
 
 
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UNR Testing Program
PI and Project Coordinator - Sanders
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International Cooperation

• University of Mexico
• E-Defense

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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

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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

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• 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

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Building Test
W24x68
W24x68
W24x68
W30x116
W30x116
W30x116
W30x90
W30x90
W30x90
W14x211
W14x283
W14x211
W14x283
Computational component
Experimental component
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Building Test
Pseudodynamic testing and analysis of steel
frames exhibiting flexible connections
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Full Scale Model
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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.