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by Linda Al Atik, PEER - Sep, 2009 - l_atik@berkeley.eduThis Excel file calculates the weighted average of the natural logarithm of the spectral values from the NGA modelsNGA Model:AS08 BA08 CB08 CY08 I080.25 0.25 0.25 0.25 0N1Site: North County Recycling Center and Sanitary LandfillFault:Great Valley 6 (Midland), M=6.8Explanatory VariablesMGMPT (s) SA Median SA Median + N.σSA Median - N.σSD Median6.80PSA (g) 0.0100.097 0.165 0.057 0.000SD (cm) 0.0200.097 0.166 0.057 0.001RRUP (km)0.0300.100 0.172 0.058 0.00247.960.0500.109 0.190 0.063 0.0070.0750.130 0.229 0.073 0.018RJB (km)0.100.153 0.271 0.086 0.03847.960.150.195 0.346 0.110 0.1090.200.221 0.392 0.124 0.219RX (km)0.250.227 0.405 0.127 0.35247.960.300.225 0.405 0.125 0.5040.400.207 0.374 0.114 0.822U0.500.187 0.341 0.102 1.15800.750.141 0.265 0.076 1.9741.00.109 0.206 0.057 2.699FRV1.50.068 0.130 0.035 3.77612.00.046 0.091 0.024 4.6133.00.026 0.052 0.013 5.874FNM4.00.018 0.036 0.009 7.17505.00.013 0.027 0.007 8.3077.50.006 0.014 0.003 8.960FHW10.00.004 0.008 0.002 9.4890PGA (g) 00.097 0.164 0.057ZTOR (km)PGV (c/s) -110.146 17.433 5.9051.00DEFINITION OF PARAMETERS: δN= Number of standard deviations to be considered in the calculations Figures (a), (b) and (c): Definition of Fault Geometry and Distance Measures30 PSA= Pseudo-absolute acceleration response spectrum (g; 5% damping) PGA= Peak ground acceleration (g)VS30 (m/sec) PGV= Peak ground velocity (cm/s)275 SD= Relative displacement response spectrum (cm; 5% damping) M= Moment magnitudeFMeasured RRUP= Closest distance to coseismic rupture (km), used in AS08, CB08 and CY08. See Figures a, b and c for illustation0 RJB= 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, b and c for illustationZ1.0 (m) U= Unspecified-mechanism factor: 1 for unspecified; 0 otherwise, used in BA08DEFAULT FRV= Reverse-faulting factor: 0 for strike slip, normal, normal-oblique; 1 for reverse, reverse-oblique and thrust FNM= Normal-faulting factor: 0 for strike slip, reverse, reverse-oblique, thrust and normal-oblique; 1 for normalZ2.5 (km) FHW= Hanging-wall factor: 1 for site on down-dip side of top of rupture; 0 otherwise, used in AS08 and CY08DEFAULT ZTOR= Depth to top of coseismic rupture (km), used in AS08, CB08 and CY08 δ= Average dip of rupture plane (degrees), used in AS08, CB08 and CY08W (km) VS30= Average shear-wave velocity in top 30m of site profile10 FMeasured= Vs30 Factor: 1 if VS30 is measured, 0 if Vs30 is inferred, used in AS08 and CY08 Z1.0= 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 yourFAS site specific number0 Z2.5= Depth of 2.5 km/s shear-wave velocity horizon (km), used in CB08. Enter "DEFAULT" in order to use the default value or enter your site specific numberHW Taper W= Fault rupture width (km), used in AS081 FAS= Aftershock factor: 0 for mainshock; 1 for aftershock, used in AS08 and CY08HW 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 AbrahamsonGeometric Mean Horizontal ComponentCALCULATION OF WEIGHTED AVERAGE 2008 NGA MODELS:AS08: Abrahamson & Silva 2008 NGA ModelBA08: Boore & Atkinson 2008 NGA ModelCB08: Campbell & Bozorgnia 2008 NGA ModelCY08: Chiou & Youngs 2008 NGA ModelI08: Idriss 2008 NGA Model, Rock sites only Vs>450 m/s0.0010.010.11100.01 0.1 1 10Spectral Acceleration)Period (s)5%-Damped Pseudo-Absolute Acceleration Response SpectrumMedianMedian + N.σMedian - N.σ