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Thornton Tomasetti 28 of 234 UPPER AND LOWER BOUND DAMPER ANALYSIS COLUMN SHEAR DCRs, LEVEL 3 - LEVEL 4 LOWER-BOUND MODEL (A=0.85) Elevation West East North South Mean DCR 0.69 0.68 0.77 0.78 Median DCR 0.67 0.66 0.74 0.74 Total Entries 176 176 160 160 % DCR >1.0 2.3%2.8%7.5%6.9% NOMINAL MODEL (A=1.0) Elevation West East North South Mean DCR 0.71 0.71 0.80 0.80 Median DCR 0.70 0.69 0.76 0.77 Total Entries 176 176 160 160 % DCR >1.0 2.3%2.8% 7.5%6.9% UPPER-BOUND MODEL (A=1.15) Elevation West East North South Mean DCR 0.74 0.75 0.83 0.83 SEE NOTE 1 Median DCR 0.73 0.72 0.80 0.80 Total Entries 176 176 160 160 % DCR >1.0 2.3% 2.8% 7.5%6.9%SEE NOTE 2 ACCIDENTAL ECCENTRICITY RESULTS COLUMN SHEAR DCRs, LEVEL 3 - LEVEL 4 ACCIDENTAL ECCENTRICITY MODEL (A=0.85) Elevation West East North South Mean DCR 0.64 0.78 0.69 0.78 SEE NOTE 3 Median DCR 0.62 0.74 0.64 0.76 Total Entries 176 176 160 160 % DCR >1.0 2.3%2.8% 7.5%6.9%SEE NOTE 4 IN COLUMN DCR VALUES FROM A LOWER- TO UPPER-BOUND DAMPER MODEL ISO.07 ORLESS. )1 Rev. 10/2/2018 _.kX,Lk-k_X.k_kk_k_.ka.JuX_X.X..kAX.A.X.XXXX-k_X_kkk-AX-/ 2 - THE FEW ANOMOLOUS COLUMNS THAT EXCEED THE UNITY CHECK IN THE NOMINAL MODEL ARE ALSO JUST OVER UNITY IN THE LOWER- AND UPPER-BOUND MODELS AS THE RESULTS ARE NOT SUBSTANTIALLY CHANGED. AS THE NORTH AND SOUTH ELEVATIONS HAVE ONE FEWER COLUMN THAN THE EAST AND WEST, THE DEMANDS ARE MARGINALLY HIGHER. 3 - THE 5% MASS SHIFT IN THE GLOBAL X AND Y DIRECTION RESULTS IN A MINOR +/-5% SHIFT IN SHEAR DCRs. 4 - NO NEW COLUMNS EXCEED UNITY AS A RESULT OF THE 5% MASS SHIFT. 1 1