Table 13 — HVU2 adhesive capsule design information with Hilti HIS-N and HIS-RN internally threaded inserts per ACI 318 Chapter 17 1 , 2
Setting information Symbol Units
Diamond core drilling
Nominal bolt / cap screw diameter ( in ) 3 / 8 1 / 2 5 / 8 3 / 4
Temp . range A 3
Temp . range B 3
Temp . range C 3
Characteristic bond stress in psi 505 505 505 505 τ cracked concrete 4 , 5 cr
( MPa ) ( 3.49 ) ( 3.49 ) ( 3.49 ) ( 3.49 )
Characteristic bond stress in psi 1,415 1,415 1,415 1,415 τ uncracked concrete 4 , 5 uncr
( MPa ) ( 9.77 ) ( 9.77 ) ( 9.77 ) ( 9.77 )
Characteristic bond stress in psi 475 475 475 475 τ cracked concrete 4 , 5 cr
( MPa ) ( 3.28 ) ( 3.28 ) ( 3.28 ) ( 3.28 )
Characteristic bond stress in psi 1,330 1,330 1,330 1,330 τ uncracked concrete 4 , 5 uncr
( MPa ) ( 9.17 ) ( 9.17 ) ( 9.17 ) ( 9.17 )
Characteristic bond stress in psi 305 305 305 305 τ cracked concrete 4 , 5 cr
( MPa ) ( 2.11 ) ( 2.11 ) ( 2.11 ) ( 2.11 )
Characteristic bond stress in psi 855 855 855 855 τ uncracked concrete 4 , 5 uncr
( MPa ) ( 5.89 ) ( 5.89 ) ( 5.89 ) ( 5.89 )
Reduction for seismic tension α N , seis - 1.0
1 Design information in this table is based on testing in accordance with ACI 355.4 . 2 Items from Table 12 ( d a
, h ef , h min
, c ac , c min
, s min
, k c , uncr , k c , cr
, and Ф factors ) are applicable to this table for diamond core drilling .
3 Temperature range A : Max . short term temperature = 130 ° F ( 55 ° C ), max . long term temperature = 110 ° F ( 43 ° C ). Temperature range B : Max . short term temperature = 176 ° F ( 80 ° C ), max . long term temperature = 110 ° F ( 43 ° C ). Temperature range C : Max . short term temperature = 248 ° F ( 120 ° C ), max . long term temperature = 162 ° F ( 72 ° C ). Short term elevated concrete temperatures are those that occur over brief intervals , e . g ., as a result of diurnal cycling . Long term concrete temperatures are roughly constant over significant periods of time .
4 Bond strength values corresponding to concrete compressive strength f ́c = 2,500 psi ( 17.2 MPa ). For concrete compressive strength , f ́c , between 2,500 psi ( 17.2 MPa ) and 8,000 psi ( 55.2 MPa ), the tabulated characteristic bond strength may be increased by a factor of ( f ́c / 2,500 ) n [ for SI : ( f ́c / 17.2 ) n ], where n is as follows : n = 0 for uncracked concrete , all drilling methods n = 0.18 for cracked concrete , diamond core drill bit 5 Characteristic bond strengths are for horizontal and vertical downward direction only . For overhead ( vertical up ) installation , bond strengths must be multiplied by 0.70 .
Table 14 — Steel design strength for steel bolt and cap screw for Hilti HIS-N and HIS-RN internally threaded inserts 1 , 2 , 3
|
|
ASTM A193 B7 |
|
|
ASTM A193 Grade B8M stainless steel |
|
Thread size |
Tensile 4
ϕN sa lb ( kN )
|
Shear 5
ϕV sa lb ( kN )
|
Seismic Shear 6
ϕV sa , eq lb ( kN )
|
Tensile 4
ϕN sa lb ( kN )
|
Shear 5
ϕV sa lb ( kN )
|
Seismic Shear 6
ϕV sa , eq lb ( kN )
|
3 / 8-16 UNC
1 / 2-13 UNC
5 / 8-11 UNC
3 / 4-10 UNC
6,300 |
3,490 |
2,445 |
5,540 |
3,070 |
2,150 |
( 28.0 ) |
( 15.5 ) |
( 10.9 ) |
( 24.6 ) |
( 13.7 ) |
( 9.6 ) |
11,530 |
6,385 |
4,470 |
10,145 |
5,620 |
3,935 |
( 51.3 ) |
( 28.4 ) |
( 19.9 ) |
( 45.1 ) |
( 25.0 ) |
( 17.5 ) |
18,365 |
10,170 |
7,120 |
16,160 |
8,950 |
6,265 |
( 81.7 ) |
( 45.2 ) |
( 31.6 ) |
( 71.9 ) |
( 39.8 ) |
( 27.9 ) |
27,180 |
15,055 |
10,540 |
23,915 |
13,245 |
9,270 |
( 120.9 ) |
( 67.0 ) |
( 46.9 ) |
( 106.4 ) |
( 58.9 ) |
( 41.2 ) |
1 See section 3.1.8 to convert design strength ( factored resistance ) value to ASD value . 2 Hilti HIS-N and HIS-RN inserts with steel bolts are to be considered brittle steel elements . 3 Table values are the lesser of steel failure in the HIS-N insert or inserted steel bolt . 4 Tensile = ϕA se , N f uta as noted in ACI 318 Chapter 17 . 5 Shear values determined by static shear tests with ϕV sa
≤ ϕ 0.60 A se , V f uta as noted in ACI 318 Chapter 17 .
6 Seismic Shear = α V , seis ϕ Vsa
: Reduction for seismic shear only . See section 3.1.8 for additional information on seismic applications .
242 Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.2.6 HVU2 CAPSULE 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