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McKennyKrug: <br /> COE5SIGN <br /> Seismic Analysis: <br /> Load Calculations <br /> ASCE 7-05 Chapter 15 Non-building Structures, Section 15.4.2 <br /> Seismic Base Shear: <br /> V = 0.30(SDS)(W)(1) <br /> SDS= 0.65 (Determined from USGS Earthquake Hazards program <br /> http://earthguake.usgs.gov/hazards/designmaps/ Java Ground Motion Parameter Calculator <br /> using Latitude= 38.12 and Longitude = -121.4. (See next page) <br /> I =Importance factor= 1.0 <br /> W= Seismic Weight Weight of Tank, WTK=490[7rd(t)(h) +2(Trd2/4(t))] <br /> Weight of Content, Wc = SG(62.4)( (7rd2/4)(h) <br /> Seismic Weight, W <br /> Tank (gal) WTK(K) We (K) WTotal(K) SG d (Ft) h (Ft) t(Ft) 3/16- <br /> 8000 4.5 55 59.5 0.85 10.5 12 .0156 <br /> 4000 3.0 34.4 37.4 0.90 8.17 11 .0156 <br /> Seismic Shear <br /> Tanks T1 -T3 <br /> V8000 = 0.30(.65)(59.5)(1.0) = 11.6 K V8000ASD = 11.6/1.4 = 8.3 K <br /> Seismic Shear <br /> Tanks T4 <br /> V4000 = 0.30(.65)(37.4)(1.0) = 7.3 K V4000ASD = 7.3/1.4 = 5.2 K <br /> Load Combination: 0.9W + E/1.4 <br /> E = Eh + Ev Ev = 0.2SDSW EVASD = 0. 2SDSW/1.4 <br /> Stability <br /> Tanks T1-T3 <br /> OTM8000ASD = V8000ASD (h/2) = 8.3(12/2) = 49.8 K-Ft <br /> RM8000ASD = [0.9W - EVASD](d/2) = [0.9(59.5) - 0.2(0.65)(59.5)/1.4](10.5/2) = 252 K-Ft <br /> FS = 252/49.8 =5 <br /> Stability <br /> Tanks T4 <br /> OTM4000ASD = Va000ASD (h/2) = 5.2(11/2) = 28.6 K-Ft <br /> RM8000ASD = [0.9W - EVASD](d/2) = [0.9(37.4) - 0.2(0.65)(37.4)/1.4](8 /2) = 121 K-Ft <br /> FS = 121/28.6 =4 <br /> Anchorage: Check worst case using Hitli Profis program, results attached (last 4 pages) <br /> Va000 = 11.6K use min (4) 5/8"d KB-TZ bolts (emb 3 1/8") Vb = 11.6/4 = 2.9K <br /> Va000 = 7.3K use min (4) 5/8"d KB-TZ bolts (emb 3 1/8") Vb = 7.3/4 = 1.875K <br /> STRUCTURAL & CIVIL ENGINEERING • CODE APPLICATIONS <br /> PHONE:(916)958.0762 <br /> 8020SACRAMENMSTREET K= FAX:(916)966-0763 <br /> FAIR OAKS,CA 85628 <br /> httpJlwww.mckemyknig.com <br />