Transcript No Slide Title

Current NEESR Projects and Potential
Applications at MUST-SIM
Jerry Hajjar
University of Illinois
Possible Application
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
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
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
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)
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
Bv
ice
Bv
en
NV
en
ice
Piers
SV
La Cienega
Bvld.
ld
ld.
27.215 m
6.085 m
23.700 m
6.575 m
30.795 m
32.260 m
6.085 m
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
Deck, Pier 2, Soil 2
5
1
3
2
4
Lehigh
Pier 3
UIUC
Pier 1
7
6
RPI
Soil 1
Soil 3
Test Schedule
April
3
Small Scale Test
Pretest with UIUC and Lehigh
Large Scale Test
Test Setup
Small Amplitude Test
Large Amplitude Test
10
17
May
24
1
8
15
22
29
Damage to the Santa
Monica Freeway
Collector-Distributor 36
Multi-Site
Sub-Structuring
Simulation
Technique
System
NEESgrid
NCSA
UI-SIMCOR
Lehigh
UIUC
RPI
RPI
Comparison Damage to the Santa Monica Freeway
Failure in the Earthquake
Failure in the Laboratory
Preliminary Pier Test at UIUC
MISST Experimental Setup
Multi-site pseudo-dynamic
test allows us to investigate
seismic behavior of largescale structural system with
soil-structure interaction
using NEESgrid
environment.
Multi-site simulation
framework has been
theoretically verified to be
effective.
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
Experimental Test Program
Bidirectional
Loading
Unidirectional
Loading
Moment
Gradient
Planar (2) Flanged Coupled
Core-Wall System
SSI
Boundary
Conditions
Load
History
Planar Wall Tests
Magnitude of Vertical Stress
: x= 2 %, y= 2 %
: x= 0.6 %, y= 1.5 %
: x= 0.6 %, y= 2 %
Figure 3 Analysis of Coupled-Wall System
C-Shaped Wall Tests
 Depiction of a
test specimen in
the UIUC NEES
facility
PRETEST REQUIREMENTS
March
April
May
June
13 20 27 3 10 17 24 1 8 15 22 29 5 12 19 26
Task 1: Testing of Control System Using Rubber Wall Specimen
1.1 Fabrication of Rubber Wall (RW) with 4 Connection Points
1.2 Conduct Tests on RW with 2 sLBCBs
1.3 Conduct Tests on RW with 2 small Ancillary Actuators (sAA)
1.4 Conducts Test on RW with 2 sLBCBs and 2 AAs
Task 2: Testing of Control System on Small RC Wall
2.1 Fabrication of 5 small Reinforced Concrete Wall (sRCW)
2.2 Conduct Test on sRCW with one sLBCB
2.3 Conduct Test on sRCW with 2 sLBCBs
2.4 Conduct Test on sRCW with 2 sLBCBs and 2 sAAs
Task 3: Testing of Control System in Full Scale Facility
3.1 Fabrication of Steel Structure for multi LBCB loading
3.2 Connection of 2 LBCBs into test position*
3.3 Connection of 2 Ancillary Actuators into position
3.4 Conduct Tests on SS with 2 LBCBs
3.5 Conduct Tests on SS with 2 LBCBs and 2 AAs
* Full displacement and mixed mode control calibration of 2 LBCBs required
FABRICATION AND TESTING OF WALLS
Task 4: Fabrication of First Large Wall
4.1 Complete Heat Treating of Bars
4.2 Construction of Formwork for Footing
4.3 Complete Gauging of Bars for Footing
4.4 Fabrication of Cage for Casting of Footing
4.5 Cast Footing and Remove Formwork
4.6 Wall Formwork
4.7 Fabrication of Cage for Wall with Internal Instrumentation
4.8 Cast Wall and Remove Formwork
4.9 Formwork for Wall Cap
4.10 Reinforcement for Wall Cap
4.11 Cast Wall Cap and Remove Formwork
4.12 Attach Surface Instrumentation
4.13 Wall Ready to Move into Test Position
Task 5: Fabricate of 3 Remaining Planar Walls
5.1 Fabricate Wall 2
5.2 Fabricate Wall 3
5.3 Fabricate Wall 4
Task 6: Testing Schedule for Planar Walls
6.1 Planar Wall 1
6.2 Planar Wall 2
6.3 Planar Wall 3
6.4 Planar Wall 4
March
April
May
June
July
August
September
13 20 27 3 10 17 24 1 8 15 22 29 5 12 19 26 3 10 17 24 31 7 14 21 28 4 11 18 25
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
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
Small Scale Testing Facility, UIUC
Shake Table Facility, UNR
UMR Shaking Table Program
PI - Belarbi
UIUC – Simulation Program
PI - Elnashai
UNR Testing Program
PI and Project Coordinator - Sanders
International Cooperation
 University of Mexico
 E-Defense
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
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
 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
W24x68
W30x116
W30x116
W30x116
W30x90
W30x90
W30x90
Experimental component
W14x211
W24x68
W14x283
W24x68
W14x283
W14x211
Building Test
Computational component
Building Test
Pseudodynamic testing and analysis of steel
frames exhibiting flexible connections
Full Scale Model
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….