Laserfiche WebLink
Base Mounted Equipment Anchorage Design - SEISMIC <br />ASCE 7-16, Ch. 13 Unit Identification: <br />Wp =1000 lbs unit weight <br />B = 38.00 in unit width <br />dB dir anchors = 32.00 in dist btwn anchors (B dir.) <br />L = 42.00 in unit length <br />dL dir anchors = 40.00 in dist btwn anchors (L dir.) <br />HUNIT =74.00 in unit height <br />HCG_EQUIP =49.33 in center of gravity height (equip) <br />HCURB =6.00 in curb height <br />HCG =55.33 in (includes curb height) <br />ap and Rp obtained from ASCE 7-16, Tables 13.5-1 and 13.6-1 <br />ap =2.50 Rp =6.00 Ip =1.00 SDS =1.043 <br />z = 0.00 ft h = 30.00 ft Ωo = 2.0 <br />Fp = (0.4[(ap)(SDS)(Ip)(1+2(z/h)]/Rp) x Wp =0.174 Wp Fv = 0.2(SDS)Wp =0.209 Wp <br />Fp-MIN = 0.3(SDS)(Ip) x Wp =0.313 Wp <br />Fp-MAX = 1.6(SDS)(Ip) x (Wp) =1.669 Wp <br />Fp = Vh = 313 lbs 0.7Fp = Vh= 219 lbs <br />Fv = Vv = 209 lbs 0.7Fv = Vv = 146 lbs <br />Unit Anchorage: <br />Fp in "B" Direction <br /># connections shear 6 <br /># connections tension 2 <br />MOT = VhHCG = 1443 lb-ft MOT = ΩVhHCG = 2886 lb-ft MOT = VhHCG =1010 lb-ft <br />MR= (0.9-0.2Sds)Wp(B/2) = 1095 lb-ft MR = (0.9-0.2Sds)Wp(B/2) = 1095 lb-ft MR = (0.6-0.14Sds)Wp(B/2) = 719 lb-ft <br />T = (MOT - MR) / dB = 131 lbs T = (MOT - MR) / dB = 672 lbs T = (MOT - MR) / dB = 109 lbs <br />Tconn = T / # conn tension = 65 lbs Tconn = T / # conn tension = 336 lbs Tconn = T / # conn tension = 55 lbs <br />Vconn = Vh / # conn shear = 52 lbs Vconn = ΩVh / # conn shear = 104 lbs Vconn = Vh / # conn shear = 37 lbs <br />Fp in "L" Direction <br /># connections shear 6 <br /># connections tension 2 <br />MOT = VhHCG = 1443 lb-ft MOT = ΩVhHCG = 2886 lb-ft MOT = VhHCG =1010 lb-ft <br />MR= (0.9-0.2Sds)Wp(L/2) = 1210 lb-ft MR = (0.9-0.2Sds)Wp(L/2) = 1210 lb-ft MR = (0.6-0.14Sds)Wp(L/2) = 794 lb-ft <br />T = (MOT - MR) / dL = 70 lbs T = (MOT - MR) / dL = 503 lbs T = (MOT - MR) / dL = 65 lbs <br />Tconn = T / # conn tension = 35 lbs Tconn = T / # conn tension = 251 lbs Tconn = T / # conn tension = 32 lbs <br />Vconn = Vh / # conn shear = 52 lbs Vconn = ΩVh / # conn shear = 104 lbs Vconn = Vh / # conn shear = 37 lbs <br />Max Connection Forces: <br />Tmax = 65 lbs Tmax = 336 lbs 0.069014134 Tmax = 55 lbs <br />Vmax = 52 lbs Vmax = 104 lbs 0.013349045 Vmax = 37 lbs <br />0.082363179 <br />Connection/Anchorage Notes: <br />Chiller <br />STRENGTH @ 1.0E STRENGTH @ ΩSERVICE <br />STRENGTH SERVICE <br />Anchor unit w/ 2 connections per short side, 3 per long side, 6 total. <br />- Each connection is (1) 1/2" diameter Hilti KB-TZ w/ 2" embed. <br />- See attached Hilti output for anchor calcs <br />-1/2"Ø Hilti KB-TZ2: ϕVn = 2,079 lbs, ϕTn = 1,671 lbs.; DCR = 8.2%, Ok <br />STRENGTH @ 1.0E STRENGTH @ ΩSERVICE <br />STRENGTH @ 1.0E STRENGTH @ ΩSERVICE <br />HCURB <br />HUNIT <br />HCG <br />L <br />B <br />B/2 <br />±Fp <br />±Fp <br />W±Fv <br />19.1 <br />1