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
Single HAC-T or HAC-30 in top of slab corner
AC232 provides design guidelines to account for the influence of
corners where only one anchor channel is present. The design
of this type of application is covered in ESR-3520. Table 2.2.15.1
provides the minimum edge and corner distances for and HAC-
30. HAC-T and HAC-30 requirements for top and bottom of slab
corners are equal.
Table 2.2.15.1 — Minimum substrate edge and corner
distances for single HAC-T in a corner in
normal weight, sand-lightweight and All
light-weight concrete
Anchor
channel
Units h
ef
Minimum c
a1
Minimum c
a2
HAC-30 In (mm) 2.68 (68) *1.97 (70) *1.97 (50)
HAC-T50
In (mm) 3.70 (94) 3.94 (100) 3.94 (100)
In (mm) 4.17 (106) *1.97 (50) *1.97 (50)
HAC-T70 In (mm) 6.89 ( 175) 2.95 (75) 2.95 (75)
*For all-lightweight concrete, c
a1
= c
a2
= 2.95” (75 mm)
Corner distance c
a2
is measured to the center of the anchor.
Figure 2.2.15.1 — Minimum corner distance for single HAC-T and HAC-30 in
top of slab, plan view.
Pair of HAC-T or HAC-30 in top of slab
corners
AC232 does not include provisions to account for the influence
of an adjacent and/or corner channel. Technically, HAC-T can be
used in both sides of the corner.
Additional measurements shall be taken into consideration
to account for the negative influence of the adjacent anchor
channel, if both channels are to be loaded simultaneously. See
chapter 9, Special Anchor Channel Design for additional design
information.
The minimum corner distances for pair of HAC-T in top of slab
corners (c
a2
) are consistent with table 2.2.15.1. These minimum
distances are based on installation requirements. Both HAC-T at
corners cannot be installed at the minimum corner distance due
to physical constraints (clashing of HAC-T will occur).
However, two HAC can be installed next to each other in a
corner configuration where the anchor channels are installed
perpendicular to each other.
Figure 2.2.15.2 illustrates a pair of HAC-T in a corner. Corner
distances greater than the minimum corner distance may be
required based on the structural adequacy of the concrete at
the corner.
Corner distance c
ca2
is measured to the center of the anchor.
Figure 2.2.15.2 — Minimum corner distance for pair of HAC-T or HAC-30 in
top of slab, plan view.
Design of top of slab corners
Hilti has developed a model to account for the influence
of adjacent and corner channels. The model follows the
fundamentals of AC232 and allows analysis of more complex
but typical applications encountered in a project such as the
conditions shown in Figure 2.2.15.3. See chapter 9, Special
Anchor Channel Design for additional design information.
Figure 2.2.15.3 — Corner configuration of pair of HAC-T or HAC-30 in top of
slab.
2.2.15 HAC-T AND HAC-30 IN TOP OR BOTTOM OF SLAB CORNERS
Hilti Anchor Channels with serrated channel lips and rebar
edge confinement plate (HAC-T EDGE Lite and HAC EDGE) and
HAC-T EDGE with superior steel performance (HAC-T S EDGE)
are offered in HAC-T50 profiles. The anchor channel is identical
to its matching HAC-T, except the rebar edge confinement plate
(EDGE Lite or EDGE plate) is incorporated for superior concrete
performance in shear.
The standard portfolio consists of HAC-T50 with two defined
nominal anchor heights; 4.31” (109.50 mm) and 3.84” (97.50
mm). Moreover, defined channel length, EDGE Plate geometry,
rebar lengths, anchor and rebar diameter, and number of rebar
are also defined. The number of anchors per channels is pre-
defined and can be modified and ordered upon request. Refer
to section 2.4 for additional information about standard items
and lead times.
The concrete edge shear confinement plate (EDGE plate) is
fixed to the form work or pour stop. The EDGE plate comes with
installation holes. As an added value, the product comes with
the specified edge distance (c
a1
).
HBC-T
HAC-T50
HAC-T EDGE Lite
HAC-T EDGE
HAC-T S EDGE
Figure 2.2.16.1 — HAC-T EDGE Lite, HAC-T EDGE, and HAC-T S EDGE
profiles with matching bolts.
2.2.16 HAC-T EDGE LITE, HAC-T EDGE, AND HAC-T S EDGE
HAC-T EDGE Lite and HAC EDGE
These anchor channel systems consist of HAC-T and the new rebar edge confinement plate (EDGE plate). The EDGE plate is not
structurally attached to the anchor channel. This allows decoupling of the tension and shear forces. HAC-T50 EDGE C comes with
an offset rebar and increased height of the front plate.
HAC-T S EDGE
This anchor channel is equal to its matching HAC-T EDGE, except the "S" bracket is added. The "S" bracket offers superior steel
performance. The S bracket is structurally attached to the anchor channel. The S-bracket has a similar geometry to the connected
channel profile to ensure direct bearing of the S bracket on the channel profile
HAC-T
EDGE Lite Plate
or
EDGE Plate
Fixture and self-
drilling screws
HAC-T EDGE Lite
or
HAC-T EDGE
HAC-T
S bracket
(superior steel
performance)
EDGE Plate
Fixture and self-drilling
screws, and nuts
HAC-T S EDGE