Product Technical Guides : US-EN Anchor Fastening - August 2021 | Page 222

Table 36 — Load adjustment factors for Hilti HIS-N and HIS-RN internally threaded inserts in uncracked concrete ^{1 , 2}

HIS-N and HIS-RN all diameters uncracked concrete

Internal

Spacing factor in tension

ƒ _AN

Edge distance factor in tension

ƒ _RN

Spacing factor in shear ⁴

ƒ _AV

┴ Toward edge

ƒ _RV

Edge distance in shear

⃦ To edge

ƒ _RV

Concrete thickness factor in shear ⁵

in . 3 / 8 1 / 2 5 / 8 3 / 4 3 / 8 1 / 2 5 / 8 3 / 4 3 / 8 1 / 2 5 / 8 3 / 4 3 / 8 1 / 2 5 / 8 3 / 4 3 / 8 1 / 2 5 / 8 3 / 4 3 / 8 1 / 2 5 / 8 3 / 4

Spacing ( s ) / Edge distanc ( c _a ) / Concrete thickness ( h ), - in . ( mm )

3-1 / 4 ( 83 ) 0.62 n / a n / a n / a 0.46 n / a n / a n / a 0.56 n / a n / a n / a 0.23 n / a n / a n / a 0.46 n / a n / a n / a n / a n / a n / a n / a 4 ( 102 ) 0.65 0.63 n / a n / a 0.52 0.50 n / a n / a 0.58 0.56 n / a n / a 0.31 0.23 n / a n / a 0.52 0.46 n / a n / a n / a n / a n / a n / a 5 ( 127 ) 0.69 0.67 0.62 n / a 0.61 0.57 0.46 n / a 0.60 0.58 0.56 n / a 0.44 0.32 0.20 n / a 0.61 0.57 0.40 n / a n / a n / a n / a n / a

5-1 / 2 ( 140 ) 0.71 0.68 0.64 0.61 0.65 0.60 0.49 0.41 0.61 0.59 0.56 0.55 0.50 0.37 0.23 0.18 0.65 0.60 0.46 0.35 n / a n / a n / a n / a 6 ( 152 ) 0.73 0.70 0.65 0.62 0.70 0.64 0.51 0.44 0.62 0.59 0.57 0.56 0.57 0.43 0.26 0.20 0.70 0.64 0.51 0.40 0.68 n / a n / a n / a 7 ( 178 ) 0.77 0.73 0.67 0.64 0.82 0.72 0.57 0.48 0.63 0.61 0.58 0.57 0.72 0.54 0.33 0.25 0.82 0.72 0.57 0.48 0.73 0.66 n / a n / a 8 ( 203 ) 0.80 0.77 0.70 0.66 0.94 0.81 0.62 0.52 0.65 0.63 0.59 0.58 0.88 0.66 0.40 0.31 0.94 0.81 0.62 0.52 0.78 0.71 n / a n / a 9 ( 229 ) 0.84 0.80 0.72 0.68 1.00 0.91 0.68 0.57 0.67 0.64 0.60 0.59 1.00 0.78 0.48 0.37 1.00 0.91 0.68 0.57 0.83 0.75 n / a n / a 10 ( 254 ) 0.88 0.83 0.75 0.71 1.00 0.75 0.62 0.69 0.66 0.61 0.60 0.92 0.56 0.43 1.00 0.75 0.62 0.88 0.79 0.67 n / a 11 ( 279 ) 0.92 0.87 0.77 0.73 0.83 0.68 0.71 0.67 0.62 0.60 1.00 0.65 0.50 0.83 0.68 0.92 0.83 0.71 0.65 12 ( 305 ) 0.96 0.90 0.80 0.75 0.91 0.75 0.73 0.69 0.64 0.61 0.74 0.57 0.91 0.75 0.96 0.87 0.74 0.68 14 ( 356 ) 1.00 0.97 0.85 0.79 1.00 0.87 0.77 0.72 0.66 0.63 0.93 0.71 1.00 0.87 1.00 0.94 0.80 0.73 16 ( 406 ) 1.00 0.90 0.83 0.99 0.81 0.75 0.68 0.65 1.00 0.87 0.99 1.00 0.85 0.78 18 ( 457 ) 0.94 0.87 1.00 0.85 0.78 0.70 0.67 1.00 1.00 0.90 0.83 24 ( 610 ) 1.00 0.99 0.96 0.88 0.77 0.73 1.00 0.96 30 ( 762 ) 1.00 1.00 0.97 0.84 0.79 1.00 36 ( 914 ) 1.00 0.91 0.84 > 48 ( 1219 ) 1.00 0.96

1 Linear interpolation not permitted 2 Shaded area with reduced edge distance is permitted provided the installation torque is reduced to 0.30 T _max for 5d ≤ s ≤ 16-in . and to 0.5 T _max for s > 16-in . 3 When combining multiple load adjustment factors ( e . g . for a four-anchor pattern in a corner with thin concrete member ) the design can become very conservative . To optimize the design , use

PROFIS Engineering or perform anchor calculation using design equations from ACI 318 Chapter 17 . 4 Spacing factor reduction in shear applicable when c < 3 * h _ef

. ƒ _AV , is applicable when edge distance , c < 3 * h _ef

. If c ≥ 3 * h _ef , then ƒ _AV

= ƒ _AN .

5 Concrete thickness reduction factor in shear , ƒ _HV , is applicable when edge distance , c < 3 * h _ef

. If c ≥ 3 * h _ef , then ƒ _HV

= 1.0 . ƒ _HV

Table 37 — Load adjustment factors for Hilti HIS-N and HIS-RN internally threaded inserts in cracked concrete ^{1 , 2}

HIS-N and HIS-RN all diameters uncracked concrete

Internal

Spacing factor in tension

ƒ _AN

Edge distance factor in tension

ƒ _RN

Spacing factor in shear ⁴

ƒ _AV

┴ Toward edge

ƒ _RV

Edge distance in shear

⃦ To edge

ƒ _RV

Concrete thickness factor in shear ⁵

in . 3 / 8 1 / 2 3 / 8 1 / 2 3 / 8 1 / 2 3 / 8 1 / 2 3 / 8 1 / 2 3 / 8 1 / 2

Spacing ( s ) / Edge distanc ( c _a ) / Concrete thickness ( h ), - in . ( mm )

3-1 / 4 ( 83 ) 0.62 n / a 0.63 n / a 0.59 n / a 0.39 n / a 0.63 n / a n / a n / a 4 ( 102 ) 0.65 0.63 0.71 0.66 0.61 0.60 0.53 0.47 0.71 0.66 n / a n / a 5 ( 127 ) 0.69 0.67 0.82 0.75 0.64 0.63 0.74 0.66 0.82 0.75 n / a n / a

5-1 / 2 ( 140 ) 0.71 0.68 0.87 0.80 0.65 0.64 0.85 0.76 0.87 0.80 n / a n / a 6 ( 152 ) 0.73 0.70 0.93 0.85 0.66 0.65 0.97 0.87 0.93 0.85 0.81 n / a 7 ( 178 ) 0.77 0.73 1.00 0.95 0.69 0.68 1.00 1.00 1.00 0.95 0.87 0.84 8 ( 203 ) 0.80 0.77 1.00 0.72 0.70 1.00 0.93 0.90 9 ( 229 ) 0.84 0.80 0.75 0.73 0.99 0.95 10 ( 254 ) 0.88 0.83 0.77 0.75 1.00 1.00 11 ( 279 ) 0.92 0.87 0.80 0.78 12 ( 305 ) 0.96 0.90 0.83 0.80 14 ( 356 ) 1.00 0.97 0.88 0.85 16 ( 406 ) 1.00 0.94 0.90 18 ( 457 ) 0.99 0.95 24 ( 610 ) 1.00 1.00 30 ( 762 ) 36 ( 914 ) > 48 ( 1219 )

1 Linear interpolation not permitted 2 Shaded area with reduced edge distance is permitted provided the installation torque is reduced to 0.30 T _max for 5d ≤ s ≤ 16-in . and to 0.5 T _max for s > 16-in . 3 When combining multiple load adjustment factors ( e . g . for a four-anchor pattern in a corner with thin concrete member ) the design can become very conservative . To optimize the design , use

PROFIS Engineering or perform anchor calculation using design equations from ACI 318 Chapter 17 . 4 Spacing factor reduction in shear applicable when c < 3 * h _ef

. ƒ _AV , is applicable when edge distance , c < 3 * h _ef

. If c ≥ 3 * h _ef , then ƒ _AV

= ƒ _AN .

5 Concrete thickness reduction factor in shear , ƒ _HV , is applicable when edge distance , c < 3 * h _ef

. If c ≥ 3 * h _ef , then ƒ _HV

= 1.0 . ƒ _HV

218 Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.2.5 HIT-ICE ADHESIVE ANCHORING SYSTEM Hilti , Inc . 1-800-879-8000 | en español 1-800-879-5000 | www . hilti . com | Hilti ( Canada ) Corporation | www . hilti . ca | 1-800-363-4458