Pacific Earthquake Engineering Research Center (PEER)

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Pacific Earthquake Engineering Research Center (PEER)

PEER Leadership team

PEER Mission Advance performance-based earthquake engineering to meet the needs of various stakeholders. This mission is derived from Helmut’s version, but is shortened to fit in two lines of normal font text. Main elements: Develop and disseminate technology (as opposed to reducing risk) Engineered systems Regions of high seismic hazard PBEE (that is, design to meet needs and objectives of owners and society)

PEER Mission Advance performance-based earthquake engineering to meet the needs of various stakeholders. This mission is derived from Helmut’s version, but is shortened to fit in two lines of normal font text. Main elements: Develop and disseminate technology (as opposed to reducing risk) Engineered systems Regions of high seismic hazard PBEE (that is, design to meet needs and objectives of owners and society)

Performance-based earthquake engineering Design for the achievement of specified results rather than adherence to prescribed means. (after May 2004) This mission is derived from Helmut’s version, but is shortened to fit in two lines of normal font text. Main elements: Develop and disseminate technology (as opposed to reducing risk) Engineered systems Regions of high seismic hazard PBEE (that is, design to meet needs and objectives of owners and society)

Prescriptive design approach Linear analysis model Prescribed strength Prescriptive details The outcome: performance an undefined byproduct of design limited role for engineer O P E N UBC 97, IBC 2000, etc.

Performance-Based Earthquake Engineering Concepts Collapse Onset Base Shear Damage Threshold FEMA 356 Performance Levels IO LS CP Deformation PBEE today $, % replacement 25% 50% 100% Downtime, days 1 7 30 180 Casualty rate 0.0 0.0001 0.001 0.01 0.25 PEER contribution

PBEE Approach and Application structural nonstructural Capital Losses Decision Variable Damage Measure drift as an EDP Engineering Demand Parameter Intensity Measure