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r <br /> WOOCIWOI'I(S®$�1@11"Wa��S 17134.1 Rucker Duplex Lateral-UPDATED FEB <br /> 2018.wsw Feb.11,2018 12:21:19 <br /> STORY DRIFT(flexible seismic design) <br /> Wall Actual Story Drift(in) Allowable Story Drift <br /> Level Dir height Max Line Max Center C of M C of M hsx Delta a Ratio <br /> ft dxe dx of Mass dxe dx ft In Max C of M <br /> 1 4.00 5.17 1.55 <br /> N<->S 0.16 2 0.65 20.00 0.16 0.64 0.42 0.41 <br /> E<->W 0.14 A 0.55 14.90 0.13 0.53 0.36 0.34 <br /> 2 9.00 10.17 3.05 <br /> N<->S 0.68 2 2.73 21.75 0.18 0.71 0.90 0.23 <br /> E<->W 0.61 A 2.45 15.73 0.58 2.32 0.80 0.76 <br /> 3 8.00 8.50 2.55 <br /> N<->S 0.07 4 0.28 19.34 0.07 0.28 0.11 0.11 <br /> E<->W 0.59 G 2.36 18.87 0.57 2.26 0.92 0.89 <br /> ASCE 7 Eqn.12.8-15:dx=dxe x Cd/le <br /> Deflection amplification factor Cd from Table 12.2-1=(E-W),4.0(N-S) <br /> Importance factor le=1.00 <br /> Legend: <br /> Max dxe-Largest deflection for any sheariine on level in this direction;refer to Deflections table <br /> Line-Shearline with largest deflection on level in this direction <br /> hsx-Story height in ASCE Table 12.12-1=Height of walls plus joist depth between this level and the one above. <br /> Max dx-Largest amplified deflection on level in this direction using ASCE 7 Eq'n 12.8-15 <br /> C of M dxe-Deflection at the center of mass of this level;from interpolating deflections at adjacent sheariines. <br /> C of M dx-Amplified deflection at center of mass using Eq'n 12.8-15.Does not include differences between top and bottom diaphragm deflection. <br /> Delta a=Allowable story drift on this level from ASCE 7 Table 12.12-1 <br /> Ratio- Proportion of allowable story drift experienced,on this level in this direction. <br /> 52 <br />