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Project: Ross Durant I -- Job #: 2025-04579 <br />Date: 7/29/2025 Engineer: DF <br />Description Variable Value Unit ASCE 7-16 <br />Risk Category II Table 1.5-1 <br />Building Importance Factor Ie 1.0 Section 11.5.1, Table 1.5-2 <br />PV System Importance Factor Ip 1.0 Section 13.1.3 <br />Component Amplification Factor ap 1 Table 13.6-1 <br />Component Response Factor Rp 1.5 Table 13.6-1 <br />Array Attachment Height above Ground z 30.0 ft 13.3.1 <br />Mapped Short-Period Acceleration Parameter SS 1.306 g 11.4.1 and USGS maps <br />Mapped Long-Period Acceleration Parameter S1 0.465 g 11.4.1 and USGS maps <br />Mapped Long-Period Transition Parameter TL 8 s <br />Site Classification Default Conservatively enveloped (11.4.3) <br />Site Coefficient Fa 1.200 11.4.4 (Table 11.4.4-1) <br />Site Coefficient Fv 1.835 11.4.4 (Table 11.4.4-2) <br />Adjusted Max Spectral Response SMS 1.567 g 11.4.4 <br />Adjusted Max Spectral Response SM1 0.853 g 11.4.4 <br />Design Spectral Acceleration Parameter SDS 1.045 g 11.4.5 <br />Design Spectral Acceleration Parameter SD1 0.569 g 11.4.5 <br />Period parameter Ct Ct 0.02 <br />Period parameter x x 0.75 <br />Flexible diaphragm with vertical LFRS > 40' apart?Yes <br />Fundamental Period of Structure Ta 0.256 <br />Constant Velocity Transition Period TS 0.544 <br />Short Period Seismic Design Category, 0.2 sec D <br />Long Period Seismic Design Category, 1.0 sec D <br />Seismic Design Category, S 1 > 0.75 N/A <br />Controlling Seismic Design Category D <br />Fp = 0.4 ap(SDS)Wp[1 +2(z/h)]/ (Rp/Ip) 0.84 *Wp Equation 13.3-1 <br />Fp max = 1.6 S DS(Ip)Wp 1.67 *Wp Equation 13.3-2 <br />Fp min = 0.3 S DS(Ip)Wp 0.31 *Wp Equation 13.3-3 <br />Seismic demand on array: 0.84 *Wp <br />SEISMIC DESIGN LOAD CALCULATIONS <br />Seismic demand on nonstructural components: <br />Page 5 of 29