Post-Installed Reinforcing Bar Guide
8.0 USEFUL REFERENCE INFORMATION
8.4 CALCULATED TENSION DEVELOPMENT AND LAP SPLICE LENGTHS IN INCHES FOR GRADE 60 REINFORCING BARS IN WALLS , SLABS AND FOOTINGS PER ACI 318-19 WITH ( C b
+ K tr )/ D b
≥ 2.5 1 , 2 , 3 , 4 , 7
System 5 Concrete compressive strength [ psi ] 6
Bar size |
HIT RE 500 V3 |
HIT-HY 200-A V3 |
HIT-HY 200-R V3 |
2500 3000 4000 6000
l d
1.3 l d l d
1.3 l d l d
1.3 l d l d
1.3 l d
|
# 3 ● 12 14 12 13 12 12 12 12 # 4 ● 14 19 13 17 12 15 12 12 # 5 ● 18 23 16 21 14 18 12 15 # 6 ● ■ 22 28 20 26 17 22 14 18 # 7 ● ■ 32 41 29 37 25 32 20 26 # 8 ● ■ 36 47 33 43 28 37 23 30 # 9 ● ■ 41 53 37 48 32 42 26 34 # 10 ● ■ 46 59 42 54 36 47 30 38
See Hilti Instructions for Use ( IFU ) for recommended application range .
● Suitable for all tabulated embedments .
■ Not recommended . 1 Values calculated for ( c b
+ K tr )/ d b
≥ 2.5 . See ACI 318-19 25.4.2.4 .
2 ψ t
= 1.0 after Charney , F ., et al ., “ Recommended Procedures for Development and Splicing of Post-installed Bonded Reinforcing Bars in Concrete Structures ,” ACI Structural Journal [ 4 ]. See ACI 318-19 Table 25.4.2.5 . 3 ψ e
= 1.0 for non-epoxy coated bars . See ACI 318-19 Table 25.4.2.5 .
4 ψ s
= 0.8 for # 6 bars and smaller bars , 1.0 for # 7 and larger bars . See ACI 318-19 Table 25.4.2.5 . 5 Applicable for hammer-drilled holes . For rock-drilled and core-drilled holes , contact Hilti . 6 Values are for normal weight concrete . For sand-lightweight concrete , multiply by 1.18 , for all-lightweight concrete multiply by 1.33 . See ACI 318-19 Table 19.2.4.1 ( b ). 7 Minimum development length shall not be less than 12 in per ACI 318-19 Section 25.4.2.1 .
8.5 CALCULATED TENSION DEVELOPMENT AND LAP SPLICE LENGTHS IN MILLIMETERS FOR CANADIAN 400 MPA REINFORCING BARS IN WALLS , SLABS AND FOOTINGS PER CSA A23.3-19 WITH ( D cs
+ K tr ) ≥ 2.5D b 1 , 2 , 3 , 4 , 7
System 5 Concrete compressive strength [ psi ] 6
Bar size |
HIT RE 500 V3 |
HIT-HY 200-A V3 |
HIT-HY 200-R V3 |
2500 3000 4000 6000
l d
1.3 l d l d
1.3 l d l d
1.3 l d l d
1.3 l d
|
10M ● 300 380 300 340 300 310 300 300 15M ● 410 540 370 480 340 440 300 380 20M ● 510 660 450 590 410 540 360 460 25M ● ■ 820 1,060 730 950 670 870 580 750 30M ● ■ 960 1,250 860 1,120 790 1,020 680 890
See Hilti Instructions for Use ( IFU ) for recommended application range .
● Suitable for all tabulated embedments .
■ Not recommended . 1 Values calculated for ( d cs
+ K tr ) ≥ 2.5 db . See CSA A23.3-19 § 12.2.2 .
2 K 1
= 1.0 after Charney , F ., et al ., “ Recommended Procedures for Development and Splicing of Post-installed Bonded Reinforcing Bars in Concrete Structures ,” ACI Structural Journal [ 4 ]. See CSA A23.3-19 § 12.2.4 ( a ). 3 K 2
= 1.0 for non-epoxy coated bars . CSA A23.3-19 § 12.2.4 ( b ).
4 K 4
= 0.8 for 20M and smaller bars , 1.0 for 25M and larger bars . CSA A23.3-19 § 12.2.4 ( d ). 5 Applicable for hammer-drilled holes . For rock-drilled and core-drilled holes , contact Hilti . 6 Values are for normal weight concrete . For sand-lightweight concrete , multiply by 1.2 , for all-lightweight concrete multiply by 1.3 . See CSA A23.3-19 § 12.2.4 ( c ). 7 Minimum development length shall not be less than 300 mm per CSA A23.3-19 Section 12.2.1 .
37 November 2022