Product Technical Guides : US-EN Anchor Fastening - August 2021 | Página 294

DESIGN INFORMATION IN CONCRETE PER CSA A23.3
Limit State Design of anchors is described in the provisions of CSA A23.3 Annex D for post-installed anchors tested and assessed in accordance with ACI 355.2 for mechanical anchors . This section contains the Limit State Design tables with unfactored characteristic loads that are based on the published loads in ICC Evaluation Services ESR-1545 . These tables are followed by factored resistance tables . The factored resistance tables have characteristic design loads that are prefactored by the applicable reduction factors for a single anchor with no anchor-to-anchor spacing or edge distance adjustments for the convenience of the user of this document . All the figures in the previous ACI 318 Chapter 17 design section are applicable to Limit State Design and the tables will reference these figures . For a detailed explanation of the tables developed in accordance with CSA A23.3 Annex D , refer to Section 3.1.8 . Technical assistance is available by contacting Hilti Canada at ( 800 ) 363-4458 or at www . hilti . ca .
Table 10 — HSL-3-R stainless steel design information in accordance with CSA A23.3 Annex D 1
Design parameter Symbol Units
Nominal anchor diameter M8 M10 M12 M16 M20
Anchor O . D .
d a
mm
( in )
12
( 0.47 )
15
( 0.59 )
18
( 0.71 )
24
( 0.94 )
28
( 1.10 )
Effective min . embedment 2
h ef
mm
( in )
60
( 2.36 )
70
( 2.76 )
80
( 3.15 )
100
( 3.94 )
125
( 4.92 )
Min . concrete thickness h min - See Table 5 of this document , or Table 5 of ESR-1545 Critical edge distance c ac - See Table 5 of this document , or Table 5 of ESR-1545 Minimum edge distance c min - See Table 5 of this document , or Table 5 of ESR-1545 Minimum anchor spacing s min - See Table 5 of this document , or Table 5 of ESR-1545
Min . specified yield strength
psi
81,200
65,300
HSL-3-R
( N / mm 2 )
( 560 )
( 450 )
Min . specified yield strength
HSL-3-GR
f ya
psi
( N / mm 2 )
81,200
( 560 )
Min . specified yield strength
HSL-3-SKR
psi
( N / mm 2 )
81,200
( 560 )
65,300
( 450 )
NA
NA
Min . specified ult . strength
f ut
psi
( N / mm 2 )
101,500
( 700 )
Effective tensile stress area
A se , N
in 2
( mm 2 )
0.057
( 36.6 )
0.090
( 58.0 )
0.131
( 84.3 )
0.243
( 157.0 )
0.380
( 245.0 )
Steel embed . material resistance factor for reinforcement Ф s - 0.85 8.4.3
Resistance modification factor for tension , steel failure modes 3
R
-
0.80
D . 5.3
Resistance modification factor for shear , steel failure modes 3
R
-
0.75
D . 5.3
Factored steel resistance in tension
N sar
lb
( kN )
3,915
( 17.4 )
6,205
( 27.6 )
9,020
( 40.1 )
16,800
( 74.7 )
26,215
( 116.6 )
D . 6.1.2
Factored steel resistance in shear
HSL-3-R
lb
( kN )
6,365
( 28.3 )
8,985
( 40.0 )
11,665
( 51.9 )
18,375
( 81.7 )
20,810
( 92.6 )
D . 7.1.2
Factored steel resistance in shear
HSL-3-GR
V sar
lb
( kN )
5,775
( 25.7 )
8,455
( 37.6 )
11,295
( 50.2 )
18,575
( 82.6 )
22,930
( 102.0 )
D . 7.1.2
Factored steel resistance in shear
HSL-3-SKR
lb
( kN )
4,815
( 21.4 )
5,345
( 23.8 )
7,755
( 34.5 )
NA
NA
D . 7.1.2
Factored steel resistance in shear , seismic — all versions
V sar , eq
lb
( kN )
1,735
( 7.7 )
4,230
( 18.8 )
4,515
( 20.1 )
9,170
( 40.8 )
9,170
( 40.8 )
Coeff . for factored conc . breakout resistance , uncracked concrete
k c , uncr
-
10.0
11.3
12.6
D . 6.2.2
Coeff . for factored conc . breakout resistance , cracked concrete k c , cr - 7.1 8.8 10.0 D . 6.2.2
Modification factor for anchor resistance , tension , uncracked conc . 4
ψ c , N
-
1.0
D . 6.2.6
Anchor category
-
-
3
2
2
1
1
D . 5.3 ( c )
Concrete material resistance factor Ф c - 0.65 8.4.2
Resistance modification factor for tension and shear , concrete failure modes , Condition B 5 R - 0.75 0.85 0.85 1.00 1.00 D . 5.3 ( c )
Factored pullout resistance in 20 MPa uncracked concrete 6
N pr , uncr
lb
( kN )
1,870
( 8.3 )
NA
D . 6.3.2
Factored pullout resistance in 20 MPa cracked concrete 6
N pr , cr
lb
( kN )
NA
2,700
( 12.0 )
NA
NA
8,310
( 37.0 )
D . 6.3.2
Factored seismic pullout resistance in 20 MPa cracked concrete
6
N pr , eq
lb
( kN )
1,620
( 7.2 )
2,700
( 12.0 )
3,985
( 17.7 )
6,565
( 29.2 )
8,310
( 37.0 )
Load bearing length of anchor in shear
l e
mm
( in )
24
( 0.94 )
30
( 1.18 )
36
( 1.42 )
48
( 1.89 )
56
( 2.20 )
D . 7.2.2
1 Design information in this table is taken from ICC-ES ESR-1545 , table 4 , and converted for use with CSA A23.3 Annex D .
2 See Figure 1 and 2 .
3 The HSL-3-R is considered a ductile steel element as defined by CSA A23.3 Annex D section D . 2 .
4 For all design cases , ψ c , N = 1.0 . The appropriate coefficient for breakout resistance for cracked concrete ( kc , cr ) or uncracked concrete ( k c , uncr
) must be used .
5 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 .
6 For all design cases , ψ c , P
= 1.0 . NA ( not applicable ) denotes that this value does not control for design . See section 4.1.4 of ESR-1545 for additional information .
290 Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.3.3 HSL3-R HEAVY DUTY STAINLESS STEEL 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
Ref A23.3