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St. Barbara Catholic School <br />Project No.: D-6289-01 <br />CITY OF SANTA ANA <br />Planning and Building Agency <br />Approved <br />FOR PERMIT ISSUANCE <br />7 <br />Site Modified Spectral Acceleration Value, <br />Null <br />ASCE <br />7-16 <br />SMI = F,, Si =1.823 x 0.477 = 0.869 <br />Master ID: <br />1.304a <br />Dfse <br />(SNIT increased by 50%): 0.869x 1.5 = 1.304 <br />8 <br />Numeric Seismic Design value at 0.2 sec SDs, <br />1.068g <br />ASCE 7-16 <br />SDs = 2/3 of SMs = 2/3 x 1.602= 1.068 <br />1.068g <br />Use <br />9 <br />Numeric Seismic Design value at 1.0 sec SA, <br />Null <br />ASCE 7-16 <br />SDI = 2/3 of SMi = 2/3 x 1.304 = 0.869 <br />0.869g <br />Use <br />Other seismic parameters are as follows: <br />Closest Fault Distance <br />Fault Name <br />Earthquake Magnitude <br />Slip Rate (mm/year) <br />Site Design Category <br />Risk Category <br />PGA Site Peak Ground Acceleration <br />PGAM Site Modified Peak Ground Acceleration <br />5% Damped Design Spectral Acceleration at short period, SDs <br />5% Damped Design Spectral Acceleration at 1-sec period, SDI <br />2.91 miles (4.66 km) <br />San Joaquin Hills Fault <br />7.1 M,N <br />0.5 <br />D <br />III <br />0.572g <br />0.686g <br />1.068g <br />(For Si = 0.477g (less than 0.75g), structures shall be assigned to a seismic design <br />category based on Risk Category and the design spectral response acceleration <br />parameters, SDs and SDI, ASCE 7-16 Table 11.6-1 and 11.6-2 can be used. Thus, seismic <br />design category is determined as D). <br />