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CALCULATION OF WEIGHTED AVERAGE 2008 NGA MODELS: by Linda Al A.,PEER-Sep,2009-!aGkg"o,keley.edu ' Fault Name: Hayward Fault zona This Excel file calculates the weighted average o/the natural logadthm o/the spectral values from the NGA models NGA Modcl: A508 BA08 CB08 CY08 108 Wcighh. ASO8:Abrahamson&Silva 2008 NGA Model BA08:Boom&Atkinson 2008 NGA Madel ' C1308:Campbell&Bozorgnia 2008 NGA Madel CY08:Chiou&Youngs 2008 NGA Model 108:Idriss 2008 NGA Model Ezplanatory Variables Geometric Mean Horizontal Component GMPT(s) SA Median SA Median+Na SA Median-Na SD Median 5%Ramped Pseudo-Absolute Acceleration Response Spectrum PSA(g) 0.010 7.801E-02 1.317E-01 4.619E-02 1.937E-04 10 ' SO(cm) 0.020 7.920E-02 1.340E-01 4.681E-02 7.864E-04 pup R (km) O.030 8.372E-02 1.436E-01 4.879E-02 1.870E-03 4500 0.050 9.883E-02 1.741E-01 5.611E-02 6.133E-03 0.075 1.232E-01 2.222E-01 6.827E-02 1.720E-02 1 R,ra(km) 0.10 1.440E-01 2.618E-01 7.926E-02 3.576E-02 ' 45.00 0.15 1.703E-01 3.098E-01 9.363E-02 9.512E-02 = 0.20 1.794E-01 3.233E-01 9.951E-02 1.781E-01 g RX(km) 0.25 1.660E-01 2.981E-01 9.243E-02 2.575E01 y 0.00 0.30 1.551E-01 2.783E-01 8.639E-02 3.464E-01 0 0.1 0.40 1.338E-01 2.397E-01 7.471E-02 5.315E-01 U 0.50 1.190E-01 2.148E-01 6.598E-02 7.388E-01 ' 0 0.75 8.495E-02 1.566E-01 4.608E-02 1.186E+00 01 y 0.01 Fl= 1.0 6.492E-02 1.210E-01 3.483E-02 1.812E+00 Fpy 1.5 4.172E-02 7.887E-02 2.206E-02 2.330E+00 0 2.0 3.052E-02 5.806E-02 1.604E-02 &030E+00 9.0 1.938E-02 3.698E-02 1.015E-02 4.329E+00 Fn 4.0 1.436E-02 2.745E-02 7.511E-03 5.704E+00 0.001 m 0.01 0.1 1 10 ' 0 5.6 1.173E-02 2.363E-02 5.826E-03 7.282E+00 Period(s 7 .5. 8.723E-03 1.437E-02 3.144E-03 9.387E+00 FMy 10.0 4.530E-03 1.033E-02 1.986E-03 1.124E+01 0 Z Toa(km) PGA(g) 0 ® 1.317E-01 4.619E-02 ' 2.40 PGV(cls) -1 8.034E+00 1.358E+01 4.753E+00 S 90 Vs.0(M/,00 ' 760 FMpo�.�a Z"(m) DEFAULT DEFINITION OF PARAMETERS: Z,,s(km) N =Number of standard deviations to be considered in the calculations DEFAULT PSA =Pseudo-absolute acceleration response spectrum(g;5%damping) PGA =Peak ground acceleration(g) W(km) PGV =Peak ground vel.chy(cm/s) ' 1 SO =Relative displacement response spectrum(cm;5%damping) E=Moment magnitude Fas =Closest distance to coseismic rupture(km),used in A508,CBOS and CY08.See Figures a,b and c for illustation 0 =Closest distance to surface projection of coseismic rupture(km).See Figures a,b and c for illustation Rx =Horizontal distance from top of rupture measured perpendicular to fault strike(km),used in AS08 and CY08.See Figures a,band c for illustation t 'riper 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 ASOS and CY08 =Depth to top of coselsmic rupture(km),used in AS08,CB08 and CY08 =Average dip of rupture plane(degrees),used in AS08,CB08 and CY08 ' =Average shear-wave velocity in top 30m of site profile F,rr«,,,,,a=Vs30 Factor:1 if VS30 is measured,0 if Vs301s inferred,used in AS08 and CY08 Z r.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 km1s shear-wave velocity horizon(km),used in CB08.Enter"DEFAULT"in order to use the default value or enter your site specific number ' W =Fault rupture width(km),used in AS08 FAS =Aftershock factor 0 for mainshock 1 for aftershock used in AS08 and CY08 HW Taper=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