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Structural <br />Engineering & Design Inc. <br />CITY OF SANTA ANA <br />Planning and Building Agency <br />Approved <br />FOR PERMIT ISSUANCE <br />By: Bob S Project: Airborne Systems 1I 5-0221-14 <br />Downaisle Seismic Loads Configuration: Type A Selective Rack <br />story moments by applying portal analysis. The base plate is assumed to provide <br />Seismic Story Forces <br />Typical frame made <br />Vlong= 849lb <br />Tvibutaryarea ortwocolumos <br />Vcol=Vlong/2= 425 lb <br />ofrackframe <br />F1= 376lb <br />lb <br />.. <br />.<; <br />... <br />; .,:... <br />.... <br />Typical Frame made <br />F3= 0lb <br />RE]: F77q <br />`/oriwocolumns <br />, To few <br />96" `--- ---- -- <br />Front Vie 51de Vie <br />Seismic Story Moments Conceptual System COL <br />Mbase-max= 8,000 in -lb <__= Default capacity hl-eff= hl - beam clip height/2 <br />Mbase-v= (Vcol*hleff)/2 = 51 in Vcol <br />= 10,825 In -lb <__= Moment going to base <br />Mbase-eff= Minimum of Mbase-max and Mbase-v <br />= 8,000 in -lb <br />M 1-1= [Vcol * hleft] -Mbase-eff M 2-2= [Vcol-(F1)/2] * h2 <br />= (425 Ib * 51 in)-8000 in -lb = [425 lb - 236.8 Ib]*54 in/2 <br />= 13,650 in -lb = 6,392 in -lb I <br />Mseis= (Mupper+Mlower)/2 <br />Beam to Column <br />Mseis(1-1)= (13650 in -lb + 6392 in-lb)/2 Mseis(2-2)= (6392 in -lb + 0 in-lb)/2 Elevation <br />= 10,021 in -lb = 3,196 in -lb rho= 1.0000 <br />Summary of Forces <br />LEVEL hi Axial Load Column Moment** Mseismic** Mend -fixity Mconn** Beam Connector <br />1 54 in 3,290 lb 13,650 in -lb 10,021 in -lb 3,720 in -lb 9,619 in -lb 3 pin OK <br />2 54 in 1,270 lb 6,392 in -lb 3,196 in -lb 2,325 in -lb 3,865 in -lb 3 pin OK <br />Mconn= (Mseismic + Mend-fixity)*0.70*rho <br />Mconn-allow(3 Pin)= 12,691 in -lb <br />**all moments based on limit states level loading <br />type a 5e1ect-airborne-revd.xl5 Page of 3/G/2025 <br />