Motivation Real ESSI for Performance-Based Design Summary Nonlinear Simulations for Soil-Structure Interaction and Performance-Based Design Boris Jeremi´ c University of California, Davis Lawrence Berkeley National Laboratory, Berkeley A University of California Pacific Rim Forum The Earthquake Resilience of Nuclear Facilities Berkeley, CA. June, 2015 Jeremi´ c Real ESSI for Performance-Based Design
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Motivation Real ESSI for Performance-Based Design Summary
Nonlinear Simulations for Soil-StructureInteraction and Performance-Based Design
Boris Jeremic
University of California, DavisLawrence Berkeley National Laboratory, Berkeley
A University of California Pacific Rim ForumThe Earthquake Resilience of Nuclear Facilities
Motivation Real ESSI for Performance-Based Design Summary
Introduction
MotivationI Improve seismic design of soil structure systems
I Earthquake Soil Structure Interaction (ESSI) in time andspace, plays a decisive role in successes and failures
I Accurate following and directing (!) the flow of seismicenergy in ESSI system to optimize for
I Safety andI Economy
I High fidelity numerical modeling and simulation tool toanalyze realistic ESSI behavior: The Real ESSI Simulator( aka: Vrlo Prosto, Muy Fácil, Molto Facile, ,
, Πραγματικά Εύκολο, , Très Facile,Vistinski Lesno, Wirklich Einfach)
Motivation Real ESSI for Performance-Based Design Summary
Introduction
Predictive Capabilities
I Verification: provides evidence that the model is solvedcorrectly. Mathematics issue. Well developed (for the RealESSI Simulator).
I Validation: provides evidence that the correct model issolved. Physics issue. Work in progress, a new US-DOEproject.
I Prediction: use of computational model to foretell the stateof a physical system under consideration under conditionsfor which the computational model has not been validated.
I Goal is to predict and inform, not diagnose or fit.
Motivation Real ESSI for Performance-Based Design Summary
6D Seismic Motions
From 6D to 1D?I Record a full 6D (3D) motions in one horizontal directionI Develop a vertically propagating shear wave in 1DI Apply 1D vertically propagating shear wave
Motivation Real ESSI for Performance-Based Design Summary
Summary
New 5 Year U.S. DOE Project
I Development of advanced computational tools formodeling and simulating the earthquake response ofnuclear facilities
I Enhance understanding of the expected levels of damage,and margins against failure, for critical facilities subjectedto earthquake ground motions
I Project Team:I Dr. David McCallen (Project Leader), UCOP and LBNLI Prof. Ian Buckle (Validation Experiments), UNRI Prof. Boris Jeremic (Code development), UCD and LBNL
Motivation Real ESSI for Performance-Based Design Summary
Summary
Acknowledgement
I Funding from and collaboration with the US-NRC,US-DOE, US-NSF, CNSC, Shimizu Corp., and AREVA NPGmbH is greatly appreciated,
I Collaborators: Dr. McCallen (UCOP and LBNL), Prof.Buckle (UNR), Dr. Kammerer (UCB/PEER), Dr. Budnitz(LBNL), Prof. Kavvas (UCD), Prof. Sett (UB), Mr. Orbovic(CNSC) Prof. Pisanò (TU Delft), Mr. Watanabe (Shimizu),Mr. Vlaski (AREVA NP GmbH), and UCD students: Mr.Abell, Mr. Karapiperis, Mr. Feng, Mr. Sinha, Mr. Luo