HAC_Technical-Guide

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Cast-In Anchor Channel Product Guide, Edition 1 • 02/2019
2.1 HAC
Nomenclature
2.2 Geometric Parameters 2.3 Structural Performance
2.4 Ordering
Information
2.5 Standard
Portfolio
2.6 HAC Custom
Solutions
HAC
HAC
CRFoS U
HAC EDGE HBC-C
HAC-T
HAC-30
HAC-T
EDGE
HBC-T
HBC-B
HAC
HAC
CRFoS U
HAC EDGE HBC-C
HAC-T
HAC-30
HAC-T
EDGE
HBC-T
HBC-B
1. Anchor
Channel Systems
2. HAC
Portfolio
3. HAC
Applications
4. Design
Introduction
5. Base material 6. Loading
7. Anchor Channel
Design Code
8. Reinforcing
Bar Anchorage
9. Special Anchor
Channel Design
10. Design
Software
11. Best
Practices
12. Instructions
for Use
13. Field Fixes
14. Design
Example
Hilti Serrated Channel Bolt length (HBC-T and HBC-B)
Table 2.2.19.2 — Hilti Serrated Channel Bolts dimensions
Channel
Bolt
Anchor
Channel
Profile
Units
Dimensions
Channel
bolt
length
Diameter ø b
1
b
2
k L
HBC-T
HAC-T50
HAC-T70
mm
M12
40-200
(in) (1.57-7.87)
mm
M16
18.5 33 12.0 40-200
(in) (0.55) (1.30) (0.47) (1.57-7.87)
mm
M20
60-200
(in) (2.36-7.87)
HBC-B HAC-30
mm M10 19.0 34.0 9.2 40-200
(in) M12 (0.75) (1.34) (0.36) (1.57-7.87)
Table 2 . 2 .19.3 —
Channel lip thickness
Anchor
Channel
profile
Channel lip
thickness,
l
th
HAC-T50
1/8 in
(3.10 mm)
HAC-T70
13/64 in
(5.2 mm)
HAC-30
19/64 in
(7.5 mm)
Minimum t-bolt overhang
According to AISC Steel Construction Manual, 13th Edition,
Section 14-10: “Adequate thread engagement for anchor rods is
identical to the condition described in the RCSC Specification
as adequate for steel to steel structural joints using high
strength bolts: having the end of the [anchor rod] flush with or
outside the face of the nut”.
There is no maximum thread protrusion limitation from the
standpoint of the function of the bolt.
If needed, the excess at the end of the bolt can be cut-off. The
nut shall be fully engaged. The outside face of the head of the
t-bolt has special markings to identify the t-bolt type and proper
head orientation of the t-bolt. If the t-bolt is to be cut or grind,
inspect and ensure the orientation and t-bolt type is as specified
prior to any work on the t-bolt. If the marking on the t-bolt are
removed, proper inspection is not possible. Proper corrosion
protection shall be required.
Onsite adjustability
Serrations of channel lip allow incremental
longitudinal displacement of 1/8” (3 mm). If the
bracket needs to be slightly adjusted, while a
force is applied (i.e. hung panel), the HBC-T will not slide. The
HBC-T need not to be loaded in order to reposition the bracket.
Therefore, it is not acceptable to adjust the location of the
t-bolts via hammering of the bracket, if the weight of the panel is
applied on the bracket
Figure 2.2.19.4 — Overhang of Hilti Channel Bolts (HBC-T).
Table 2.2.19.4 – Recommended t-bolt overhang, L
o
Hilti locking channel bolt
diameter (mm)
Minimum nominal overhang,
L
o
M12
1/8 in
(3 mm)
M16
13/64 in
(5 mm)
M20
9/32 in
(7 mm)
Installation Torque
Table 2-2.19.5 — Installation torque for Hilti Serrated Channel Bolts (HBC-T and HBC-B)
Bolt type Units
Installation torque Tinst
(Installation type A)
1
Installation torque Tinst
(Installation type B)
2
HAC-30 F HAC-T50 F HAC-T50 S HAC-T70 HAC-30 F HAC-T50 F HAC-T50 S HAC-T70
HBC-B M10 4.6 ft-lb (Nm) 11 (15) N/A 11 (15) N/A
HBC-B M12 4.6 ft-lb (Nm) 19 (25) N/A 19 (25) N/A
HBC-T M12 8.8 ft-lb (Nm) N/A 55 (75) N/A 55 (75)
HBC-T M16 8.8 ft-lb (Nm) N/A 74 (100) N/A 136 (185)
HBC-T M20 8.8 ft-lb (Nm) N/A 89 (120) N/A 236 (320)
1 Installation type A: The fixture is in contact with the channel profile and the concrete surface
2 Installation type B: The fixture is fastened to the anchor channel by suitable steel part (e.g. square plate washer), fixture is in contact with the channel profile only
Hexagonal head nut
Anchor channel systems consist of a group of anchors, channel
profile, and matching t-bolt. The t-bolt hardware consists of a
hex head nut and a flat washer.
Table 2.2.20.1 — Material specifications of HBC-T nuts
Material specifications
Material
ASTM A 563 Grade A; Stainless Steel 316
Dimensions
ASME/ANSI B18.2.2-1986
Finish
ASTM B 633-98, SC 1 Type I
Thread
Class 2A fit; Class 2B thrd; ASME B1.1
Figure 2.2.20.1 — Isometric view if HBC-T nut.
Table 2.2.20.2— Dimensions of HBC-T Nuts
Criteria units M12 M16 M20
p
a
(pitch size) mm 1.75 2.00 2.50
c max. mm 0.60 0.80 0.80
min. mm 0.15 0.20 0.20
d
a
max. mm 13.00 17.30 21.60
min. mm 12.00 16.00 20.00
d
w
min. mm 16.60 22.50 27.70
e min. mm 20.03 26.75 32.95
m
max. mm 10.80 14.80 18.00
min. mm 10.37 14.10 16.90
m
w
min. mm 8.30 11.30 13.50
s
max. mm 18.00 24.00 30.00
min. mm 17.73 23.67 29.16
Different surfaces and materials might have a significant
influence on the ratio between torque moment and pre-tension.
Therefore, it is important to use the washer as per product
approval or recommended by Hilti.
2.2.20 HILTI CHANNEL BOLTS HARDWARE
Figure 2.2.20.2 — HBC-T nut dimensions.
HBC-B
(compatible
with HAC-30)
HBC-T
(compatible
with HAC-T )