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Lochsa Client:t: Everett Sheet: <br /> e n o i n e e r i n g <br /> Projec Job No.: <br /> Mwada:(70213654312 Colorado:(720)64442.16 Date: 5/2/2018 <br /> Idaho:(206)3.12-7166 A:blrta(sal)77.1.90.10 <br /> Engineer: S,H. <br /> Table 12.12-1 Allowable Story Drift,Aaa,b <br /> Risk Category <br /> Structure I or II III Iv <br /> Structures,other than masonry shear wall structures,4 stories or less above the base as defined 0.025h,,, 0.020hsx 0.015hs, <br /> in Section 11.2,with interior walls,partitions,ceilings,and exterior wall systems that have been <br /> designed to accommodate the story drifts. <br /> Masonry cantilever shear wall structuresd 0.010hsx 0.010hsx 0.010hsx <br /> Other masonry shear wall structures 0.007hsx 0.007hsx 0.007hsx <br /> All other structures 0.020hsx 0.015hsx 0.010hsx <br /> ahsx is the story height below Level x. <br /> bFor seismic force-resisting systems comprised solely of moment frames in Seismic Design Categories D,E,and F,the allowable story drift <br /> shall comply with the requirements of Section 12.12.1.1. <br /> `There shall be no drift limit for single-story structures with interior walls,partitions,ceilings,and exterior wall systems that have been <br /> designed to accommodate the story drifts.The structure separation requirement of Section 12.12.3 is not waived. <br /> dStructures in which the basic structural system consists of masonry shear walls designed as vertical elements cantilevered from their base <br /> or foundation support which are so constructed that moment transfer between shear walls(coupling)is negligible. <br /> Risk Category II <br /> Structure Item 1 <br /> Story height of level x 13.17 ft <br /> Allowable story height 3.95 in <br /> Deflection amplification factor Cd = 5 <br /> Importance factor le = 1 <br /> Lochsa Engineering www.lochsa.com 1-806-606-97ge484 <br />