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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 NRMO* q;0-0221-14 <br />Slab on Grade <br />x -►I I~ c � I <br />i y <br />L --� <br />SLAB ELEVATION <br />A Selective Rack <br />Baseplate Plan View <br />Base Plate <br />Effec, Basepiate width=B= 8.00 in width=a= 3.00 in <br />Effec. Basepiate Depth=D= 5.00 in depth=b= 3.00 in <br />midway dist face of column to edge of plate=c= 5.50 in <br />Column Loads midway dist face of column to edge of plate=e= 4.00 in <br />Date: <br />Concrete <br />fc= 8,233 psi <br />tslab=t= 4.0 in <br />teff= 4.0 in <br />phi=O= 0.6 <br />Soil <br />fsoil= 750 psf <br />Movt= 86,196 in -lb <br />Frame depth= 42.0 in <br />Sds= 1.045 <br />0.2*Sds= 0.209 <br />7,= 0.600 <br />P=B/D= 1.600 <br />FICA0.5= 90.70 psi <br />vr-Hu wHu=u= 4u ib per column <br />Load Case 1) (1.2+0.2Sds)D + (1.2+0.2Sds)*B*P+ rho E RMI SEC 2.2 EQTN 5 <br />unfactored ASD load <br />PRODUCT LOAD=P= 3,250 lb per column <br />= 1.40896 * 40 lb + 1.40896 * 0.7 * 3250 lb + 1 * 2052 lb <br />= 5,314 lb <br />unfactoredASD load <br />Load Case 2) (0.9-0.2Sds)D + (0.9-0.2Sds)*B*Papp + rho*E RMI SEC 2.2 EQTN 7 <br />Papp= 2,178 lb, per column <br />P-seismic=E= (Movt/Frame depth) <br />= 0.69104 * 40 lb + 0.69104 * 0.7 * 2177.5 lb + 1 * 2052 lb <br />= 3,133 lb <br />= 2,052 lb per column <br />Load Case 3) 1.2*D + 1.4*P RMI SEC2.2 EQTN 1,2 <br />unfactoredLlmltState load <br />= 1.2*40 lb + 1.4*3250 lb <br />B= 0.7000 <br />= 4,598 lb <br />rho= 1.0000 <br />Load Case 4) 1.2*D + 1.0*P + 1.0E ACI318-14 Sec 5.3.1 <br />Sds= 1,0448 <br />1.2 d- 0.2*Sds= 1.4090 <br />= 5,350 lb Egtn 5.3.1e <br />Effective Column Load=Pu= 5,350 lb per column <br />0. 9 - 0.20Sds= 0.6910 <br />Puncture <br />Apunct= [(c+t)+(e+t)]*2*t <br />= 140.0 inA2 <br />Fpunctl= [(4/3 + 8/(3*p)] * X *(F'c^0.5) <br />fv/Fv= Pu/(Apunct*Fpunct) <br />= 163.3 psi <br />= 0.264 < i OK <br />Fpunctl= 2.66 * 2, * (FICA0.5) <br />= 144.8 psi <br />Fpunct eff= 144.8 psi <br />Slab Bending <br />Pse=DL+PL+E= 5,350 lb <br />Asoil= (Pse*144)/(fsoil) <br />L= (Asoil)A0.5 <br />y= (c*e)A0.5 + 2*t <br />= 1,027 inA2 <br />= 32.05 in <br />= 12.7 In <br />x= (L-y)/2 <br />M= w*xA2/2 <br />S-slab= 1*teffA2/6 <br />= 9.7 in <br />= (fsoil*xA2)/(144*2) <br />= 2.67 inA3 <br />Fb= 5*(phi)*(fc)A0.5 <br />= 243.9 in -lb <br />fb/Fb= M/(S-slab*Fb) <br />= 272.21 psi <br />_ <br />type a Select-airborne-revd.xls Page of 3/6/2025 <br />