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

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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. Content of Presentation. CABER Project

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Presentation Transcript
slide1

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

content of presentation
Content of Presentation
  • CABER Project
    • 3-Pier Simulation
    • Test Structure
    • Hybrid Testing
  • EOT Efforts
    • Shear-Torsion Interaction
    • Data-Rich Video Production
    • Access Portal
limitations of hybrid simulation
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
nees caber project
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
details of structure
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

data acquisition
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
loading on structure
Loading on Structure
  • Sequence of Imposed Records
    • Level 1 (cracking)
    • Level 2 (yielding)
    • Level 3 (design level)
    • Level 4 (failure)
hybrid simulation
Hybrid Simulation

Fz

My

Mx

Fy

Fx

My

Calc Forces

{u}

Target Disp.

Computational component

Simulation Coordinator

{F}

Measured

forces

Experimental component

Measure forces

eot efforts
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
experimental test case
Experimental Test Case

Tests on 5 small piers

video production sequence
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
video production sequence1
Video Production Sequence

Matlab-Generated Video

video production sequence2
Video Production Sequence

Video Created in Adobe Premiere

potential framework
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
next steps
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

closure
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?

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