Dam Safety Research Using NEES Equipment Sites A GrandChallenge Proposal submitted and Denied by the - PowerPoint PPT Presentation

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Dam Safety Research Using NEES Equipment Sites A GrandChallenge Proposal submitted and Denied by the

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Title: Dam Safety Research Using NEES Equipment Sites A GrandChallenge Proposal submitted and Denied by the


1
Dam Safety Research Using NEES Equipment Sites
A Grand-Challenge Proposal submitted (and
Denied by) the National Science Foundation
2
1. What is NEES
  • NEES (Network of Earthquake Engineering
    Simulations, http//nees.org ) opens the field of
    earthquake engineering research to a broader and
    more diverse community by
  • Provides access to the world's largest and most
    advanced experimental facilities for performing
    earthquake engineering experiments
  • Operates an IT infrastructure capable of
    integrating lab experiments with computer models
  • Motivates the research community to collaborate
    with distant colleagues using a shared, web-based
    environment
  • Fosters the open exchange of data and information
    among researchers and practicing engineers
    through shared, web-accessible repositories
  • Creating active programs of education and
    outreach committed to improving seismic safety

3
NEES SITES
  • Each of NEES's 15 shared laboratory facilities
    enables researchers to explore a different aspect
    of the complex way that soils and structures
    behave as a result of earthquakes and tsunamis.
  • The laboratories fall into five general
    categories
  • Shake tables
  • Tsunamic wave basin
  • Geotechnical centrifuge
  • Field experimentation and monitoring
  • Large-scale laboratory experimentation (e.g. CU-
    Boulder)
  • NSF committed to 5 5 years of funding, we are
    embarking in year 3!
  • http//nees.org

4
Geographical Distribution
5
Organization of NEES Pieces
80 million infrastructure30 million/year for
10 years, total 400 millions
6
Grand-Challenge Proposals
  • Every year NSF/NEES fund one new Grand-Challenge
    Proposal which responds to major societal needs.
  • University of Colorado and 10 other Universities
    submitted a proposal to investigate the seismic
    safety of dams and levees.

7
Preliminary list of research needs collected by
Bureau
8
VISION of Research Proposal
  • Advance the State of the Art and the State of the
    Practice in seismic safety assessment of dams and
    levees through the integration of collaborative
    research and engineering education using the
    unique experimental and IT resources of NEES.

9
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11
TASKS
  • Numerical simulation Modify OpenSees to enable
    the seismic risk assessment of
  • Concrete arch and gravity dams
  • Embankment dams and levees (with risk of
    liquefaction)
  • Evaluation of Concrete Dams
  • Field tests of concrete dams forced vibration
    tests (using UCLA equipment).
  • Shaking table test of a concrete dam with
    mitigation scheme (at U-Nevada, Reno shaker)
  • Laboratory tests of dynamic uplift in concrete
    dams (at U-Colorado FHT equipment site).
  • Engineering validation Validation and
    verification of OpenSees software for Concrete
    dams.
  • Probabilistic safety assessment and fragility
    curves Determination of fragility curves for
    concrete dams with and without mitigation
    measures.
  • Evaluation of Embankment Dams and Levees
  • In Situ characterization of levees and embankment
    dams field tests to characterize dam/levee
    materials (using U-Texas-Austin equipment)
  • Centrifuge tests of improved and non-improved
    embankment dams, levees (at UC-Davis equipment
    site)
  • Engineering validation Validation and
    verification of OpenSees software for
    geotechnical structures.
  • Probabilistic safety assessment and fragility
    curves Determination of fragility curves for
    embankment dams and levees with and without
    remediation measures.
  • Socio-Economic Impact
  • Flood simulation Dynamic simulation of flood
    resulting from the breaching of a dam.
  • Societal impact of dam failure on evacuation,
    disaster planning and critical infrastructural
    systems, warning system assessment.
  • Outreach and International
  • Education Outreach (EO) to K-12
    Undergrad./graduate students Profession Public.

12
Shake Table Tests
13
Hybrid Testing for Dynamic Uplift
Rough deteriorating cohesive crack with dynamic
uplift
finite element nonlinear parallel Analysis (rock
and concrete)
Fast Hybrid Testing of Rock/Concrete Interface
Subsystem
Dynamic Amplification Factor
Udyn/Usta
Tele-presence
1
dCOD/dt
Experiment
Parallel Analysis
2
14
Other Laboratory Equipments
15
  • Flood Simulation in case of full/partial dam
    failure
  • Socio-Economic Impact

16
Education Outreach
  • K-12 Students
  • College Students
  • Practicing Engineers

17
Data Archiving
  • The Data Sharing and Archiving Policies and
    Guidelines of NEESinc (2006) will be strictly
    abided.
  • Not only will relevant data from laboratory and
    field tests be uploaded in a timely fashion, but
    also all validation and verification problems
    will be stored in the NEES repository.
  • Should NEESinc authorize it, we will also ask our
    international collaborators to contribute to this
    archive.

18
International Collaboration
  • ICOLD The International Commission on Large
    Dams
  • Canada Prof. Leger, Polytechnique de MontrĂ©al
  • China Prof. Houqun Chen (Member of the Chinese
    Academy of Science), and Prof. Haibo Wang of the
    China Institute of Water Resources and Hydropower
    Research
  • India Prof. Paul, IIT of Roorke
  • Italy CESI-RICERCA and Politecnico of Milano
  • Iran Prof. Ghaemian, Shariff University
  • Japan The Tokyo Electric Power Company (TEPCO)
  • Switzerland Prof. Springman, ETH/Zurich and
    Stucky Engineers
  • Turkey Prof. Tosun President of the Dam Safety
    Association in Turkey and Prof. Mustafa Erdik
    Chair of the Dept. of Earthquake Engineering at
    Kandilli Observatory.

19
Budget, Duration
  • 5 years
  • 3.7 Million
  • A lot of bureaucracy
  • Easy access to NEES laboratories

20
Outcome
  • Proposal denied
  • Can resubmit (modified) proposal in January 2008.
  • Must bring dams to the attention of NSF
  • Try to seek matching funds from xx to boost the
    chances of success in 2008 (about 300k/year for
    4 years from industry/governmental agencies)
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