ARCHIVED REPORTS_2012_5 - Laserfiche WebLink

Home Browse Search

' CALCULATION OF WEIGHTED AVERAGE 2008 NGA MODELS: by Linda Al Atik,PEER-Sep,2009-I_atfk@berkeley.edu Fault Name: Green Valley Fault Zone This Excel file calculates the weighted average of the natural logarithm of the spectral values from the NGA models ' NGA Model: AS08 BA08 CB08 CY08 108 Weight: ASOB:Abrahamson d Silva 2008 NGA Model BAGS:Boore&Atkinson 2008 NGA Model N CB08:Campbell&Bozorgnia 2008 NGA Model CY08:Chiou&Youngs 2008 NGA Model ' 108:Idriss 2006 NGA Model Explanatory Variables Geometric Mean Horizontal Component GMP T(s) SA Median SA Median+No SA Median-No SO Median 5%-Damped Pseudo-Absolute Acceleration Response Spectrum PSA(g) 0.010 5.569E-02 9.410E-02 3.296E-02 1.382E-04 70 SO(cm) 0.020 5.649E-02 9.562E-02 3.338E-02 5.610E-04 Rpur( 0.030 5.956E-02 1.023E-01 3.469E-02 1.331E-03 53.3 0.050 7.008E-02 1.236E-01 3.973E-02 4.349E-03 0.075 8.794E-02 1.589E-01 4.866E-02 1.228E-02 t R,ra( 0.10 1.033E-01 1.880E-01 5.675E-02 2.564E-02 53.3 0.15 1.229E-01 2.237E-01 6.752E-02 6.865E-02 0.20 1.291E-01 2.328E-01 7.164E-02 1.282E-01 ' Rx( 0.25 1.194E-01 2.145E-01 6.651E-02 1.853E-01 0.1 0.00; 0.30 1.117E-01 2.004E-01 6.221E-02 2.495E-01 0.40 9.550E-02 1.711E-01 5.331E-02 3.793E-01 U 0.50 8.137E-02 1.468E-01 4.510E-02 5.050E-01 0 0.75 5.364E-02 9.888E-02 2.910E-02 7.490E-01 y 0.01 ' 1.0 3.857E-02 7.1 B8E-02 2.069E-02 9.574E-01 Fav 1.5 2.274E-02 4.299E-02 1.203E-02 1.270E+00 0 2.0 1.579E-02 3.004E-02 8.300E-03 1.568E+00 3.0 9.609E-03 1.834E-02 5.035E-03 2.147E+00 F 4.0 6.970E-03 1.333E-02 3.646E-03 2.768E+00 0.001 NM 0.01 0.1 1 10 0 5.0 5.611E-03 1.130E-02 2.786E-03 3.482E+00 Period(s) ' 7.5 2.725E-03 5.828E-03 1.275E-03 3.806E+00W 10.0 1.634E-03 3.727E-03 7.162E-04 4.055E+00 0 Z Top(km) PGA(g) 0 0.056 9.410E-02 3.296E-02 ' 3.70 PGV(,is) 4 4.184E+00 7.071E+00 2.475E+00 a 90 Vs3c(Msec) ' 760 Fm_.ur.a 0 (m) DEFAULT DEFINITION OF PARAMETERS: Zz.(km) N =Numberofstandard deviationsto be considered in the calculations DEFAULT PSA =Pseudo-absolute acceleration response spectrum(g;5%damping) POA =Peak ground acceleration(g) ' W(km) PGV =Peak ground velocity(crNs) 1 SO =Relative displacement response spectrum(cm;5%damping) No Moment magnitude Fps =Closest distance to coseismic rupture(km),used in ASO8,CBo8 and CYO8.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,b and c for illustation HW 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 ASOB and CY08 =Depth to top of coseismic rupture(km),used in ASOS,CB08 and CYOS ' =Average dip of rupture plane(degrees),used in AS08,CB08 and CY08 =Average shear-wave velocity in top 30m of site profile Vs30 Factor:1 if VS30 is measured,0 if Vs30 is inferred,used in AS08 and CY08 Zr,p =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 kmhs 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 Fps =Aftershock factor:0 for mainshock;1 for aftershock,used in AS08 and CY08 NW Taper=To choose the hanging well taper to be used in ASO8.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