Anchor Fastening Technical Guide , Edition 22
Table 43 — Hilti KB-TZ2 stainless steel shear design information in accordance with CSA A23.3 Annex D , applicable for both hammer and core drilled installations 1
Design parameter Symbol Units
Nominal anchor diameter ( in .) 1 / 4 3 / 8 1 / 2 5 / 8 3 / 4 1 A23.3
Anchor O . D . d a in . 0.25 0.375 0.5 0.625 0.75 1.00 ( mm ) ( 6.4 ) ( 9.5 ) ( 12.7 ) ( 15.9 ) ( 19.1 ) ( 25.4 )
Effective min . embedment 2 h ef in . 1-1 / 2 1-1 / 2 2 2-1 / 2 2 2-1 / 2 3-1 / 4 2-3 / 4 3-1 / 4 4 3-1 / 4 3-3 / 4 4-3 / 4 4 5-3 / 4 ( mm ) ( 38 ) ( 38 ) ( 51 ) ( 64 ) ( 51 ) ( 64 ) ( 83 ) ( 70 ) ( 83 ) ( 102 ) ( 83 ) ( 95 ) ( 121 ) ( 102 ) ( 146 )
Steel embed . material resistance factor for reinforcement
Shear , steel failure modes
Φ s
- 0.85 0.85 0.85 0.85 0.85 0.85 8.4.3
Resistance modification factor for shear , steel failure modes 3 R - 0.75 0.75 0.75 0.75 0.75 0.75
Factored steel resistance in shear
Factored steel resistance in shear , seismic
V sar lb 930 2,940 3,115 5,320 7,875 10,555 14,635 20,020 D . 7 . 1 . 2
( kN ) ( 4.1 ) ( 13.1 ) ( 13.9 ) ( 23.7 ) ( 35.0 ) ( 47.0 ) ( 65.1 ) ( 89.1 )
V sar , eq
|
( kN ) |
( 3.2 ) |
( 13.1 ) |
( 13.9 ) |
( 23.7 ) |
( 35.0 ) |
( 38.2 ) |
( 38.2 ) |
|
lb |
710 |
2,940 |
3,115 |
5,320 |
7,875 |
8,585 |
8,585 |
Shear , concrete failure modes
Ref
Concrete material resistance factor
Φ c
- 0.65 0.65 0.65 0.65 0.65 0.65 8.4.2
Resistance modification factor for shear , concrete failure modes 4 R - 0.75 1.00 1.00 1.00 1.00 1.00
Load bearing length of anchor in shear l e in . 1-1 / 2 1-1 / 2 2 2-1 / 2 2 2-1 / 2 3-1 / 4 2-3 / 4 3-1 / 4 4 3-1 / 4 3-3 / 4 4-3 / 4 4 5-3 / 4 ( mm ) ( 38 ) ( 38 ) ( 51 ) ( 64 ) ( 51 ) ( 64 ) ( 83 ) ( 70 ) ( 83 ) ( 102 ) ( 83 ) ( 95 ) ( 121 ) ( 102 ) ( 146 )
Effectiveness factor for pryout k cp - 1.0 1.0 1.0 2.0 1.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0
D . 5.3 ( c )
3.3.5
1 Design information in this table is taken from ICC-ES ESR-4266 , dated December , 2020 , and revised July , 2021 Tables 5 and 7 , and converted for use with CSA A23.3 Annex D . 2 See Figure 1 of this document . 3 The KB-TZ2 stainless steel anchor is considered a ductile steel element as defined by CSA A23.3 Annex D section D . 2 . 4 For use with the load combinations of CSA A23.3 chapter 8 . Condition B applies where supplementary reinforcement in conformance with CSA A23.3 section D . 5.3 is not provided , or where pullout or pryout strength governs . For cases where the presence of supplementary reinforcement can be verified , the resistance modification factors associated with Condition A may be used .
Table 44 — Steel resistance for Hilti KB-TZ2 stainless steel anchors 1 , 2
Nominal anchor diameter in .
1 / 4
3 / 8
3 / 8
1 / 2
5 / 8
3 / 4
1
1
Effective embedment depth in . ( mm )
Tensile 3
N sar lb ( kN )
Shear 4
V sar lb ( kN )
Seismic Shear 5
V sar , eq lb ( kN )
1-1 / 2 2,050 930 710 ( 38 ) ( 9.1 ) ( 4.1 ) ( 3.2 ) 1-1 / 2 4,210 2,940 2,940 ( 38 ) ( 18.7 ) ( 13.1 ) ( 13.1 ) 2 2-1 / 2 4,210 3,115 3,115 ( 51 ) ( 64 ) ( 18.7 ) ( 13.9 ) ( 13.9 ) 2 2-1 / 2 3-1 / 4 8,070 5,320 5,320 ( 51 ) ( 64 ) ( 83 ) ( 35.9 ) ( 23.7 ) ( 23.7 ) 2-3 / 4 3-1 / 4 4 12,810 7,875 7,875 ( 70 ) ( 83 ) ( 102 ) ( 57.0 ) ( 35.0 ) ( 35.0 ) 3-1 / 4 3-3 / 4 4-3 / 4 16,350 10,555 8,585 ( 83 ) ( 95 ) ( 121 ) ( 72.7 ) ( 47.0 ) ( 38.2 )
4 31,930 14,635 8,585 ( 102 ) ( 142.0 ) ( 65.1 ) ( 38.2 ) 5-3 / 4 31,930 20,020 8,585 ( 146 ) ( 142.0 ) ( 89.1 ) ( 38.2 )
1 See Section 3.1.8 to convert factored resistance value to ASD value . 2 Hilti KB-TZ2 stainless steel anchors are to be considered ductile steel elements . 3 Tensile Nsar = Ase , N fs futa R as noted in CSA A23.3 Annex D . 4 Shear determined by static shear tests with Vsar < 0.6 Ase , V fs futa R as noted in CSA A23.3 Annex D . 5 Seismic shear values determined by seismic shear tests with Vsar , eq < 0.60 Ase , V fs futa R as noted in CSA A23.3 Annex D . See Section 3.1.8 for additional information on seismic applications .
Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.3.5 KWIK BOLT TZ2 EXPANSION ANCHOR 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
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