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Base Mounted Equipment Anchorage Design - WIND <br />ASCE 7-16, Ch. 29.4.1 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 />Hroof =10.0 ft mean roof height <br />D = 50.0 ft depth of bldg (B dir.) <br />W = 50.0 ft width of bldg (L dir.) <br />Exp. Cat. = C ASCE 7-16 Sect. 26.7.3 <br />V and Kzt obtained from ASCE 7-16, Tables 26.5-1, A-D and 26.8.2 <br />V = 95 mph Kzt =1.00 Kh =0.85 Kd =0.85 <br />Ke =1.00 α = 9.5 zg =900 ft qh =16.67 psf <br />(GCr)B =1.90 (GCr)L =1.90 (GCr)V =1.50 <br />PB =31.7 psf PL =31.7 psf PV =25.0 psf <br />AfB =21.1 ft²AfL =23.3 ft²AfV =11.1 ft² <br />FhB = VhB =669 lbs (29.4-2)0.6FhB = VhB=401 lbs (29.4-2) <br />FhL = VhL =739 lbs (29.4-2)0.6FhL = VhL=443 lbs (29.4-2) <br />Fv = Vv =277 lbs (29.4-3)0.6Fv = Vv =166 lbs (29.4-3) <br />Unit Anchorage: <br />FhL in "B" Direction (wind on "L" face) <br /># connections shear 6 <br /># connections tension 2 <br />MOT = VhHCG = 3408 lb-ft MOT = VhHCG =2045 lb-ft <br />MR= (0.9Wp-Vv)(B/2) = 986 lb-ft MR= (0.6Wp-0.6Vv)(B/2) = 687 lb-ft <br />T = (MOT - MR) / dB = 908 lbs T = (MOT - MR) / dB = 509 lbs <br />Tconn = T / # conn tension = 454 lbs Tconn = T / # conn tension = 255 lbs <br />Vconn = Vh / # conn shear = 123 lbs Vconn = Vh / # conn shear = 74 lbs <br />FhB in "L" Direction (wind on "B" face) <br /># connections shear 4 <br /># connections tension 2 <br />MOT = VhHCG = 3083 lb-ft MOT = VhHCG =1850 lb-ft <br />MR= (0.9Wp-Vv)(L/2) = 1090 lb-ft MR= (0.6Wp-0.6Vv)(L/2) = 759 lb-ft <br />T = (MOT - MR) / dL = 598 lbs T = (MOT - MR) / dL = 327 lbs <br />Tconn = T / # conn tension = 299 lbs Tconn = T / # conn tension = 164 lbs <br />Vconn = Vh / # conn shear = 167 lbs Vconn = Vh / # conn shear = 100 lbs <br />Max Connection Forces: <br />Tmax = 454 lbs Tmax = 255 lbs <br />Vmax = 167 lbs Vmax = 100 lbs <br />Connection/Anchorage Notes: <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 = 2,227 lbs.; DCR = 8.8%, Ok <br />LATERAL VERTICAL <br />Chiller <br />SERVICE STRENGTH @ 1.0W <br />STRENGTH @ 1.0W SERVICE <br />STRENGTH @ 1.0W SERVICE <br />STRENGTH SERVICE <br />HCURB <br />HUNIT <br />HCG <br />L <br />B <br />B/2 <br />±FhB <br />±FhL <br />W±Fv <br />19 <br />1