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Original Building or Short Bridge, including site response and SSI Long-Span Bridge, including site response/SSI Netw

PRIMARY PEER EARTHQUAKE ENGINEERING ISSUES. Original Building or Short Bridge, including site response and SSI Long-Span Bridge, including site response/SSI Networks with Multiple Structures Liquefaction and Lateral Spreading Seismic Slope Instability and Permanent Ground Deformations.

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Original Building or Short Bridge, including site response and SSI Long-Span Bridge, including site response/SSI Netw

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  1. PRIMARY PEER EARTHQUAKE ENGINEERING ISSUES • Original • Building or Short Bridge, including site response and SSI • Long-Span Bridge, including site response/SSI • Networks with Multiple Structures • Liquefaction and Lateral Spreading • Seismic Slope Instability and Permanent Ground Deformations • Revised • Short-period systems, Ia • Long-period systems, SI • Specific Systems, Sa(T1) or more sophisticated IMs

  2. PERIOD-INDEPENDENT INTENSITY MEASURES Peak Ground Acceleration PGA Peak Ground Displacement PGD Arias Intensity (Arias, 1970) Cumulative Absolute Velocity (Kramer 2002; 5 cm/sec2 threshold) Response Spectrum Intensity (Housner, 1959) Peak Ground Velocity PGV & Pulse Period Tv

  3. PERIOD-DEPENDENT INTENSITY MEASURES Spectral Acceleration at Fundamental Period Spectral Combination (Cordova et al. 2000) Spectral Vector (Conte, 2002) Spectral Combination IM1I&2E (Luco and Cornell, 2001) Sa(T1) Sa(T1)

  4. ENGINEERING DEMAND PARAMETERS BRIDGES Drift Ratio, Peak Column Curvature, Displacement Ductility, Curvature Ductility Mackie and Stojadinovic (2002) PEER Report: 1.) global response - drift ratio 2.) intermediate response - maximum column moment 3.) local response - material stress BUILDINGS Ductility Demand, Residual Ductility Demand Peak Story Drift, Peak Story Drift Angle Normalized Hysteretic Energy Dissipated LIQUEFACTION Pore Pressure Ratio Factor of Safety Against Liquefaction SEISMIC SLOPE STABILITY Seismically-Induced Permanent Displacements

  5. SUMMARY OF PRIMARY INTENSITY MEASURES • PGA • PGD • PGV & Pulse Period • Ia • CAV5 • SI • Sa(T1) • Spectral Combination • Spectral Vector * Bold IMs have attenuation relations available

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