Table 91 — Calculated tension development and Class B Splice lengths for Canadian 400 MPa bars in walls , slabs , columns , and footings per CSA 23.3-14 for Hilti HIT-RE 500 V3 - non-seismic design only 3 , 4 , 5 , 6 , 7 , 8
Rebar size
10M d cs
+ K tr min . edge dist . mm 1 min . spacing mm 2 ƒ ́c = 20 MPa ƒ ́c = 25 MPa ƒ ́c = 30 MPa ƒ ́c = 40 MPa
l d mm
Class B splice mm l d mm
Class B splice mm l d mm
Class B splice mm
60 50 300 380 300 340 300 310 300 300 15M 70 75 410 540 370 480 340 440 300 380
20M |
2.5 d b
|
80 |
100 |
510 |
660 |
450 |
490 |
410 |
540 |
360 |
460 |
25M |
|
120 |
125 |
820 |
1,060 |
730 |
950 |
670 |
870 |
580 |
750 |
30M 130 150 960 1,250 860 1,120 790 1,020 680 890
l d mm
Class B splice mm
1 Edge distances are determined using the minimum cover specified by ESR-3184 with an additional 6 % of the development length per suggestions for drilling without an aid per Hilti Post- Installed Reinforcing Bar Guide Section 3.3 . Smaller edge distances may be possible , for which development and splice lengths may need to be recalculated . For further information on required cover see CSA A23.1-14 Table 17 ; see Sec . 3.2 for determination of d cs
.
2 Spacing values represent those producing d cs
= 5d b
. Smaller spacing values may be possible , for which development and splice lengths may need to be recalculated . For further information on required spacing see CSA A23.1 Sec . 6.6.5.2 ; see Sec . 3.2 for determination of d cs
.
3 k 1 and k 2 as defined by CSA A23.3 12.2.4 ( a ) and ( b ), are taken as 1.0 for post-installed reinforcing bars . For additional information see May-June 2013 issue of the ACI Structural Journal , “ Recommended Procedures for Development and Splicing of Post-Installed Bonded Reinforcing Bars in Concrete Structures ” by Charney , Pal and Silva .
4 k 4 = 0.8 for 20M bars and smaller bars , 1.0 for 25M and larger bars . See CSA A23.3 12.2.4 ( d ).
5 K tr is assumed to equal zero . 6 Values are for normal weight concrete . For lightweight concrete , multiply development and splice lengths by 1.3 . 7 Development and splice length values are for static design . For tension development and splice lengths of bars in joints , see CSA A23.3 21.3.3.5 . For further information about reinforcement in seismic design , see CSA A23.3 Ch . 21 . 8 Refer to the Hilti North America Post-Installed Reinforcing Bar Guide for further explanation , background information , and design examples .
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Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.2.3 HIT-RE 500 V3 EPOXY 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