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PROPOSED SHEAR WALL SYSTEM (PLYWOODWOOD SHEATHING) Page: s <br />IE 1 Oriel Engineering Project No.: 302.270-18 <br />DATE :. 01/23/19 <br />OR Sbuctural & Bridge Engineers <br />9750 Miramar Road, Suite 310. Phone # : (858) 335-7643 PROJECT: Pleasanton Century <br />House BY: ESY <br />San Diego, CA 92126 www.ode2.com Seismic Force -Resisting Systems <br />SEISMIC DEMANDS ON STRUCTURAL Buildings ASCE 7.1012.8.1 <br />Code: 2013 CBC, ASCE 7-10 CHAPTER 11,12, 13 SEISMIC DESIGN CRITERIA <br />Soil Site Class: D <br />Table 20-3-1, Default = D <br />S,: 184.7 %g <br />(USGS using Latitude2017gitude) <br />S{. 69.0 %g <br />Fe: 1.000 <br />Table 11.4-1 <br />F,,: 1.500 <br />Table 11.4-2 <br />SMS: 1.847 <br />F, -S, <br />SM{ 1.035 <br />F �, -S , <br />SDs: 1.231 <br />213(S Ms) <br />SDI: 0.690 <br />213(5 ml) <br />Occupancy: II <br />Table 1.5-1 <br />Importance Factor, le: 1 <br />Table 1.5-2 <br />Seismic Force Resisting System: <br />A. BEARING WALL SYSTEMS <br />15. Light -frame (wood) walls sheathed with wood structural panels rated for shear resistance <br />Response Modification Factor, R: 6.5 <br />Table 12.2-1 <br />Overstrength Factor, D: 3 <br />Deflection Amplification Factor, Cd: 4 <br />Fundamental Period: <br />Structural Type: All other structural systems <br />Ct: 0.02 <br />Table 12.8.2 <br />x: 0.75 <br />Table 12.8-2 <br />Structural Height, hn: 19.5 ft <br />Approximate Fundamental Period, T = Ct * hn"x <br />ASCE 7-10, Eq, 12.8-7 <br />T = 0.19 sec <br />Long -Period Transition Period, TL: 8 sec <br />Fig. 22-12 - Fig. 22-16 <br />Calculation of Seismic Response Coefficient (ASCE 7-10.12.8.1.1): <br />Is the Structure Regular and 5 5 Stories? No <br />ASCE 7-10, 12.8.1.3 <br />Cs = SDS / (R / le) <br />ASCE 7-90, Eq. 12.8-2 <br />Cs = 0.189 <— Governs <br />Csmax = SDI / [T * (R / le)] <br />ASCE 710, Eq. 12.8-3/Eq. 12.8-4 <br />Csmax = 0.572 <br />Csminl = 0.044 * SDSIp <br />ASCE 7-10, Eq. 12.8-5 <br />Csmin1 = 0.054 <br />Csmin2 = (0.5 * S1) / (R / 1) <br />ASCE 7-10, Eq. 12.8-6 <br />Csmin2 = 0.053 <br />Cs = 0.189 <br />Design Seismic Base Shear (ASCE -10, 12.8.1): <br />V = Cs' Wp <br />V = 0.189.* Wp (LFRD) <br />