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Table 8- Load Adjustment Factors for 3/8-in.diameter Hilti KH-EZ,KH-EZ C and KH-EZ CRC in uncracked'2 <br /> Edge distance in shear <br /> 3/8-in.KH-EZ Spacing factor Edge distance Spacing factor II to and away Cone.thickness factor <br /> uncracked in tension factor in tension in shear' 1 toward edge from edge in shear' <br /> concrete f. fRN fAv f- f- (- <br /> Embedment in- 1-5/8 2-1/8 2-1/2 3-1/4 1-5/8 2-1/8 2-1/2 3-1/4 1-5/8 2-1/8 2-1/2 3-1/4 1-5/8 2-1/8 2-1/2 3-1/4 1-5/8 2-1/8 2-1/2 3-1/4 1-5/8 2-1/8 2-1/2 3-1/4 <br /> h (mm) (41) (54) (64) (83) (41) (54) (64) (83) (41) (54) (64) (83) (41) (54) (64) (83) (41) (54) (64) (83) (41) (54) (64) (83) <br /> 1.1/2 (38) n/a n/a n/a n/a 0.58 0.62 0.63 0.57 n/a n/a n/a n/a 0.49 0.32 0.25 0.08 0.58 0.62 0.50 0.17 n/a n/a n/a n/a <br /> 2 (51) n/a n/a n/a n/a 0.76 0.75 0.75 0.66 n/a n/a n/a n/a 0.75 0.49 0.38 0.13 0.76 0.75 0.75 0.26 n/a n/a n/a n/a <br /> 2.1/4 (57) 0.84 0.74 0.70 0.65 0.86 0.82 0.81 0.70 0.65 0.62 0.60 0.55 0.90 0.59 0.46 0.16 0.90 0.82 0.81 0.31 n/a n/a n/a n/a <br /> 2-1/2 (64) 0.88 0.77 0.72 0.67 0.95 0.91 0.88 0.75 0.67 0.63 0.61 0.55 1.00 0.69 0.54 0.18 1.00 0.91 0.88 0.37 n/a n/a n/a n/a <br /> 3 (76) 0.95 0.82 0.77 0.70 1.00 1.00 1.00 0.85 0.71 0.66 0.63 0.56 0.90 0.71 0.24 1.00 1.00 0.48 n/a n/a n/a n/a <br /> a 3-1/4 (83) 0.99 0.85 0.79 0.72 0.90 0.72 0.67 0.64 0.57 1.00 0.80 0.27 0.54 0.95 n/a n/a n/a <br /> T- <br /> o 3-1/2 (89) 1.00 0.88 0.81 0.73 0.95 0.74 0.68 0.65 0.58 0.89 0.30 0.61 0.98 n/a n/a n/a <br /> o 4 (102) 0.93 0.86 0.77 1.00 0.78 0.71 0.68 0.59 1.00 0.37 0.74 1.00 0.91 0.84 n/a <br /> E 4-1/2 (114) 0.99 0.90 0.80 0.81 0.73 0.70 0.60 0.44 0.88 0.89 n/a <br /> 4-3/4 (121) 1 1.00 0.93 0.82 1 1 0.83 0.75 1 0.71 1 0.60 1 0.48 0.96 1 1 0.91 0.639 <br /> U C <br /> ca'- 5 (127) 0.95 0.83 0.84 0.76 0.72 0.61 0.52 1.00 0.94 0.655 <br /> w L 6 (152) 1.00 0.90 0.91 0.81 0.76 0.63 0.68 1.00 0.718 <br /> o, 7 (178) 0.97 0.98 0.86 0.81 0.65 0.86 0.775 <br /> c <br /> 8 (203) 1.00 1.00 0.91 0.85 0.67 1.00 0.829 <br /> w r 9 (229) 0.97 0.90 0.69 0.879 <br /> 10 (254) 1.00 0.94 0.71 0.927 <br /> a 11 (279) 0.98 0.74 0.972 <br /> 12 (305) 1.00 0.76 1.000 <br /> 14 (356) 0.80 <br /> 16 (406) 0.84 <br /> 18 (457) 0.89 <br /> 20 (508) 0.93 <br /> 24 (610) 1.000 <br /> Table 9-Load Adjustment Factors for 3/8-in.diameter Hilti KH-EZ,KH-EZ C and KH-EZ CRC in cracked',2 <br /> Edge distance in shear <br /> 3/8-in.KH-FZ Spacing factor Edge distance Spacing factor II to and away Cone.thickness factor <br /> cracked in tension factor in tension in shear' 1 toward edge from edge in shear' <br /> concrete f. fRN fAv f- f- fMv <br /> Embedment in- 1-5/8 2-1/8 2-1/2 3-1/4 1-5/8 2-1/8 2-1/2 3-1/4 1-5/8 2-1/8 2-1/2 3-1/4 1-5/8 2-1/8 2-1/2 3-1/4 1-5/8 2-1/8 2-1/2 3-1/4 1-5/8 2-1/8 2-1/2 3-1/4 <br /> h (mm) (41) (54) (64) (83) (41) (54) (64) (83) (41) (54) (64) (83) (41) (54) (64) (83) (41) (54) (64) (83) (41) (54) (64) (83) <br /> 1.1/2 (38) n/a n/a n/a n/a 0.92 0.74 0.66 0.57 n/a n/a n/a n/a 0.49 0.32 0.25 0.09 0.92 0.64 0.50 0.17 n/a n/a n/a n/a <br /> 2 (51) n/a n/a n/a n/a 1.00 0.90 0.79 0.66 n/a n/a n/a n/a 0.76 0.50 0.39 0.13 1.00 0.90 0.77 0.26 n/a n/a n/a n/a <br /> 2.1/4 (57) 0.84 0.74 0.70 0.65 1.00 0.98 0.85 0.70 0.66 0.62 0.60 0.55 0.90 0.59 0.46 0.16 1.00 0.98 0.85 0.31 n/a n/a n/a n/a <br /> 2.1/2 (64) 0.88 0.77 0.72 0.67 1.00 1.00 0.92 0.75 0.67 0.63 0.61 0.55 1.00 0.69 0.54 0.18 1.00 1.00 0.92 0.37 n/a n/a n/a n/a <br /> 3 (76) 0.95 0.82 0.77 0.70 1.00 1.00 0.85 0.71 0.66 0.63 0.56 1.00 0.91 0.71 0.24 1.00 1.00 1.00 0.48 n/a n/a n/a n/a <br /> a 3.1/4 (83) 0.99 0.85 0.79 0.72 0.90 0.73 0.67 0.64 0.57 1.00 0.80 0.27 0.55 0.95 n/a n/a n/a <br /> o 3.1/2 (89) 1.00 0.88 0.81 0.73 0.95 0.74 0.68 0.65 0.58 0.90 0.31 <br /> U 0.61 0.98 n/a n/a n/a <br /> o 4 (102) 0.93 0.86 0.77 1.00 0.78 0.71 0.68 0.59 1.00 0.37 0.75 1.00 0.91 0.84 n/a <br /> E 4.1/2 (114) 0.99 0.90 0.80 0.81 0.73 0.70 0.60 0.44 0.89 0.97 0.89 n/a <br /> 4-3/4 (121) 1.00 0.93 0.82 0.83 0.75 0.71 0.60 0.48 0.97 1.00 0.92 0.64 <br /> U C <br /> 'ca - 5 (127) 0.95 0.83 0.85 0.76 0.72 0.61 0.52 1.00 0.94 0.66 <br /> y L 6 (152) 1.00 0.90 0.92 0.81 0.77 0.63 0.69 1.00 0.72 <br /> a 7 (178) 0.97 0.98 0.87 0.81 0.65 0.86 0.78 <br /> c <br /> 8 (203) 1.00 1.00 0.92 0.85 0.67 1.00 0.83 <br /> y r 9 (229) 0.97 0.90 0.69 0.88 <br /> 10 (254) 1 1 1.00 1 0.94 0.72 0.93 <br /> a 11 (279) 0.99 0.74 0.97 <br /> 12 (305) 1.00 0.76 1.00 <br /> 14 (356) 0.80 <br /> 16 (406) 0.85 <br /> 18 (457) 0.89 <br /> 20 (508)1 0.93 <br /> 24 (610)1 1.00 <br /> 1 Linear interpolation not permitted. <br /> 2 When combining multiple load adjustment factors(e.g.for a 4 anchor pattern in a corner with thin concrete member)the design can become very conservative. <br /> To optimize the design,use Hilti PROFIS Engineering software or perform anchor calculation using design equations from ACI 318-14 Chapter 17. <br /> 3 Spacing factor reduction in shear,fAv assumes an influence of a nearby edge.If no edge exists,then fAv=f AN. <br /> 4 Concrete thickness reduction factor in shear,f Hv assumes an influence of a nearby edge.If no edge exists,then f HV=1.0. <br /> O If a reduction factor value is in a shaded cell,this indicates that this specific edge distance may not be permitted with a certain spacing(or vice versa). <br /> Check table 5 and figure 2 of this section to calculate permissable edge distance,spacing and concrete thickness combinations. <br /> 6 KWIK HUS-EZ SCREW ANCHOR-July 2020 <br />