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603284-001 <br />second) structures.It would be conservative to determine the seismic <br />coefficients based on an upper envelope of both Site Class D and E response <br />spectra. <br />Seismic coefficients based on mapped values and based on the site-specific <br />procedure are presented in the tables below. Seismic response spectra are <br />presented in Appendix D. <br />TABLE 5A: 2010 CBC SEISMIC DESIGN PARAMETERS <br />(MAPPED VALUES FOR UPPER ENVELOPE OF SITE CLASS D AND E) <br />Categorization/Coefficient Design Value <br />Site Latitude •33.76184N <br />• Site Longitude •-117.90095W <br />• Site Class •F <br />• Mapped spectral response acceleration <br />parameter at short period, Ss <br />• Mapped spectral response acceleration <br />parameter at a period of 1 sec, Si <br />• Short Period (0.2 sec) Site Coefficient, Fa <br />• Long Period (1.0 sec) Site Coefficient, Fv <br />• Adjusted spectral response acceleration <br />parameter at short period, SMS <br />• Adjusted spectral response acceleration <br />parameter at a period of 1 sec, SM1 <br />• Design spectral response acceleration parameter <br />at short period, SDS <br />• Design spectral response acceleration parameter <br />at a period of 1 sec, Soi <br />• 1.39 <br />• 0.50 <br />• 1.0 <br />2.4 <br />• 1.39 <br />1.19 <br />• 0.93 <br />0.79 <br />- 26 - <br />Leighton <br />SL Rvcd 2019.01.21