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McKennyKrug� <br />CCUSIGN- <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(nd2/4(t))] <br />Weight of Content, We = SG(62.4)( (7rd2/4)(h) <br />SI <br />:ismic Weigh 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 <br />Seismic Shear <br />Tanks T4 <br />V4000 = 0.30(.65)(37.4)(1.0) = 7.3 K <br />Load Combination: 0.9W + E/1.4 <br />E = Eh + Ev Ev = 0.2SDSW <br />V8000ASD = 11.6/1.4 = 8.3 K <br />V4000ASD = 7.3/1.4 = 5.2 K <br />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 = V4000ASD (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 />V8000 = 11.6K use min (4) 5/8"d KB -TZ bolts (emb 3 1/8") Vb = 11.6/4 = 2.9K <br />V4000 = 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 />8020 SACRAMEWO STRUT <br />FAIR OAKS, CA 96628 <br />PHONE: (916) 966.0762 <br />FAX: (916) 966-0763 <br />httPJlwww. mckemyknbg.com <br />