1. Anchor
Channel Systems
2. HAC
Portfolio
3. HAC
Applications
Hilti Anchor Channel with the new rebar edge confinement
plate (HAC EDGE) is a solution that offers superior concrete
edge breakout performance in shear. HAC EDGE changes the
traditional concept of anchor channels with welded reinforcing
bars. Instead of relying on structural welds to transfer shear
forces from the channel profile to the reinforcing bars, HAC
EDGE takes advantage of the compressive strength of the
concrete as a way to transfer the forces to the reinforcement
attached to the edge plate. The rebar edge confinement
plate (EDGE Plate) is not structurally connected to the anchor
channel. HAC EDGE optimizes the shear load transfer from
the channel profile to the reinforcing bars and overcomes
the challenges with traditional anchor channels with welded
reinforcing bars.
Shear
6. Loading
where the reinforcing bars are welded to the back of the channel
and outperforms standard anchor channels without reinforcing
bars by up to a factor of 5.6.
HAC EDGE comes in HAC-50 and HAC-T50. The anchor channel
itself is identical to its matching HAC. In order to cope with the
market trends such as thin slabs and pockets, anchor channels
with reduced anchor depth are offered as standard.
HAC EDGE Lite is the latest addition to the HAC portfolio. It
offers a gradual increase in performance and cost between
the HAC and HAC EDGE. HAC EDGE Lite is offered in HAC-40,
HAC-50, and HAC-T50.
7. Anchor Channel
Design Code
8. Reinforcing
Bar Anchorage
9. Special Anchor
Channel Design
10. Design
Software
11. Best
Practices
HAC S EDGE and HAC-T S EDGE
Today's market presents new challenges to contractors and
designers. With a better understanding of wind loads, larger
panel sizes, unique building geometries, and taller buildings,
finding solutions for the very critical conditions creates added
challenges. Customized anchor channel and brackets are
typically needed to cope with such extreme applications.
Oftentimes, longer brackets, numerous t-bolts, or the use
of other anchoring technologies is required. Hilti has added
HAC S EDGE to the HAC portfolio to standardize this type of
applications. Thus allowing installers to keep things on site
as simple as possible. The letter "S" denotes superior steel
performance.
The design model of HAC EDGE is based on ESR-3520, ACI
318, and principles of AC232 and ACI 318. The anchor channel
itself is covered by ICC ESR-3520. The verification of the
concrete edge due to perpendicular shear loads is based on a
Hilti method; see section 9.6.1 for additional design information. HAC EDGE overcomes the limitations of the concrete edge
breakout capacity in shear. However, for some applications, the
steel failure modes of the anchor channel can be the decisive
factor. Generally, this is not a problem with HAC since in top of
The use of HAC EDGE and HAC EDGE Lite is ideal for
applications with high shear loads, thin slabs, small edge
distances, lightweight concrete, low concrete compressive
strength, and corners. Shear
12. Instructions
for Use
13. Field Fixes
14. Design
Example
slab applications, the concrete edge tends to govern the design.
When HAC EDGE is used, steel can be the limiting factor. Thus
the need for higher anchor channel steel strengths.
HAC S EDGE is similar to HAC EDGE, except a strengthening
element is added to the front part of the channel. It increases
the moment of inertia of the system, the lip strength, and anchor
connection in shear of the anchor channel.
HAC S EDGE is ideal for applications with high shear loads, thin
slabs, small edge distances, lightweight concrete, low concrete
compressive strength, and corners. In addition, HAC S EDGE
present a solution for applications with extremely high torsional
moments such as corners.
HAC EDGE is a new anchoring system that brings value
innovation. It copes with today’s fast track construction
demands and requirements of the curtain wall industry such as
installation tolerance, high wind loads, thin concrete members,
pockets, close edge distances, and lightweight concrete. In
such adverse conditions, HAC EDGE provides more than 2
times the capacity of traditional top of slab anchor channels
5. Base material
H
AC EDGE Lite, HAC EDGE,
HAC-T EDGE Lite, and HAC-T EDGE
4. Design
Introduction
Performance Index
Performance Index
Comparison based on a 4" thick slab, edge distance of 4", 4000 psi NWC,
11.8" long HAC with no influence of a corner.
Comparison based on the
lowest strength considering
the anchor, anchor-channel
connection, and channel lip.
Comparison based on a 4" thick slab, edge distance of 4", 4000 psi
NWC, 11.8" long HAC with no influence of a corner.
"S" bracket for Superior
Steel performance.
State-of-art design model based on ICC ESR-3520 and principles of AC232 and ACI 318. 19 out of 20 possible failure
modes are calculated in accordance with ESR-3520.
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Cast-In Anchor Channel Product Guide, Edition 1 • 02/2019
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