The Pacific Earthquake Engineering Research Centerheadquarters at the University of California, Berkeleyfor more information see http://peer.berkeley.eduFramework for Performance-BasedEarthquake Engineering (PBEE)Poster by H. Krawinkler and G. Deierlein (Stanford University)The PEER mission is to develop and disseminate technologies to support PBEE. The approach is aimed at improving decision-making about seismic risk by making the choice of performance goals and the tradeoffs that they entail apparent to facility owners and society at large. Intensity MeasureDamage MeasureEngineering Demand Parameterdrift as an EDPdrift as an EDPCollapse & CasualtiesDirect Financial LossDowntimeDecision VariableMeasures of Performance:

Collapse &CasualtiesDirect Financial LossDowntime Cost FunctionsDamage Fragility CurvesMean Loss Curve+ATC-58 definitions of performance assessment typesIntensity-based:Probable facility performance, given intensity of ground motionScenario-based:Probable facility performance, given a specific earthquake scenarioTime-based: Probable facility performance in a specified period of timeImpact Implementation:

ATC-58 Guidelines for Seismic Performance Assessment of BuildingsATC-63 Recommended Methodology for Quantification of Building System PerformanceTBI Tall Building InitiativeLRFD for bridge designStructural System Selection Based on Loss RiskBase ShearDeformationDamage ThresholdCollapseOnsetFEMA 356 Performance LevelsIOLSCPPBEE yesterday$, % replacement025% 50% 100%Casualty risk0.00.0001 0.001 0.01 0.25PBEE todayBase ShearDeformationDamage ThresholdCollapseOnsetOPENOPENOPENOPENOPENOPENFEMA 356 Performance LevelsIOLSCPPBEE yesterday0Casualty risk0.00.0001 0.001 0.01 0.250000Casualty risk0.00.0001 0.001 0.01 0.25PBEE todayMedina, 2002Zareian, 2006IMIMStiff Systems: Larger loss in acceleration sensitive components and smaller loss in drift sensitive componentsFlexible Systems: Small loss in acceleration sensitive components and larger loss in drift sensitive components