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CALCULATION OF WEIGHTED AVERAGE 2008 NGA MODELS: by Linda At Atik,PEER-Sep,2009-I atik@rerke/ey.edu Fault Name: Calaveras Fault Zone This Excel file calculates the weighted average of the natural logarithm of the spectral values from the NGA models ' NGA ModWeigbt:el: A50B BA08 CBO8 CY08 108 ASOB:Abrahamson 6 Silva 2008 NGA Model BA08:Boors b Atkinson 2008 NGA Model N CB08:Campbell d Bozorgnia 2008 NGA Model CY08:Chiou d Youngs 2008 NGA Model 108:Idriss 2008 NGA Model Explanatory Variables Geometric Mean Horizontal Component GMP T(s) SA Median SA Median+No SA Median-No SD Median 5%-Damped Pseudo-Absolute Acceleration Response Spectrum PSA(g) 0.010 8.455E-02 1.428E-01 5.007E-02 2.099E-04 10 SO(cm) 0.020 8.592E-02 1.453E-01 5.079E-02 8.531E-04 RRUP 0.030 9.118E-02 1.564E-01 5.315E-02 2.037E-03 37.0 0.050 1.086E-01 1.915E-01 6.179E-02 6.751E-03 0.075 1.386E-01 2.498E-01 7.683E-02 1.935E-02 1 RSB(, 0.10 1.640E-01 2.979E-01 9.027E-02 4.071E-02 37. 0.15 1.942E-01 3.532E-01 1.068E-01 1.085E-01 0.20 2.005E-01 3.614E-01 1.112E-01 1.991E-01 m Rx 025 1.821E-01 3.270E-01 1.014E-01 2.825E-01 0.1 0.00 0.30 1.679E-01 3.014E-01 9.354E-02 3.751E-01 0.40 1.432E-01 2.565E-01 7.994E-02 5.687E-01 U 0.50 1.237E-01 2.231E-01 6.854E-02 7.675E-01 0 0.75 8.364E-02 1.542E-01 4.537E-02 1.168E+00 J, o.of ' 1.0 6.185E-02 1.153E-01 3.318E-02 1.535E+00 FRv 1.5 3.793E-02 7.172E-02 2.006E-02 2.119E+00 0 2.0 2.698E-02 5.133E-02 1.418E-02 2.679E+00 3.0 1.674E-02 3.195E-02 8.774E-03 3.741E+00 FRN 4.0 1.227E-02 2.345E-02 6.416E-03 4.872E+00 MN1 o.ot 0.1 t 10 0 5.0 9.942E-03 2.002E-02 4.937E-03 6.170E+00 Period(s) 7.55.210E-03 1.114E-02 2.437E-03 7.275E+00 F_ 10.0 3.296E-03 7.518E-03 1.445E-03 8.181E+00 0 _roR(km) PGA(g) - 0 0.088 1.428E-01 5.007E-02 ' 1.30 - PGV(cis) -1 7.160E+00 1.210E+01 4.236E+00 s 90 ( 76 FN 0 ' EFA Z1F(. DEFINITION OF PARAMETERS: is(. N -Number of standard deviations to be considered in the calculations r EF PSA =Pseudo-absolute acceleration response spectrum(g;5%damping) PGA -Peak ground acceleration(g) W( PGV =Peak ground velocity(cm/s) 1 SD =Relative displacement response spectrum(cm;5%damping) =Moment magnitude Fxs -Closest distance to coseismic rupture(km),used in ASO8,CB08 and CY08.See Figures a,b and c for illustation 0 o Closest dstance to surface projection of coseismic rupture(km).See Figures a,b and c for illustation - Rx Horizontal distance from lop of rupture measured perpendimlarto fault strike(km),used in ASO8 and CY08.See Figures a,b and c for illustation T U =Unspecified-mechanism factor:1 for unspecified;0 otherwise,used in BA08 =Reverse-faulting factor:0 for strike slip,normal,normal-oblique;1 for reverse,reverse-oblique and thrust Normal-faulting factor:0 for strike slip,reverse,reverse-oblique,thrust and normal-oblique;1 for normal =Hanging-wall factor:1 for site on down-dip side of top of rupture;0 otherwise,used in AS08 and CYOS =Depth to top of coseismic rupture(km),used in AS08,CBO8 and CY08 ' =Average dip of rupture plane(degrees),used in AS08,CB08,and CY08 ra =Avege shear-wave velocity in lop 30m of site profile FN,,,,e,4=Vs30 Factor:1 if VS30 is measured,0 it Vs30 is Inferred,used in AS08 and CY08 Z1,o =Depth to 1.0 km/sec velocity horizon(m),used in AS08 and CY08.Enter"DEFAULT"in order to use the default values or enter your site specific number _=Depth of 2.5 km/s shear-wave velocity horizon(km),used in CBO8.Enter"DEFAULT'in order to use the default value or enter your site specific number W =Fauft rupture width(km),used in AS08 FAS -Aftershock factor:0 for mainshock;1 for aftershock,used in ASO$and CY08 HWTaper=To choose the hanging wall taper to be used in AS08.Enter 0 to use the hanging wall taper as published in Abrahamson and Silva(2008), - or enter 1 to use the revised hanging wall taper suggested by Norm Abrahamson i 1 1 i