Page 6 of European technical approval ETA–11/0390, issued on 27.08.2012
English translation prepared by CSTB
4
Assumptions under
which the fitness of the product
for
the intended
use was
favourably assessed
4.1
Manufacturing
The resin and the Hilti
tension anchor HZA-R
are manufactured in accordance with the provisions
of
the
European
Technical
Approval
using
the
automated
manufacturing
process
as
identified
during
inspection
of
the
plant
by
the Centre
Scientifique
et
Technique
du
Bâtiment
and
the
approved
body
and
laid
down in
the
technical
documentation.
Changes to the
product or production
process,
which
could
result
in
this
deposited
data/information
being
incorrect,
should
be
notified
to
the
Centre
Scientifique et Technique du Bâtiment before the changes are introduced.
The Centre Scientifique et
Technique du Bâtiment will decide whether or not such changes affect the approval and consequently
the
validity
of
the
CE marking
on the
basis
of
the
approval
and
if
so whether
further assessment
or
alterations to the approval shall be necessary.
4.2
Drafting
Rebar connection must be designed in keeping with good engineering practice.
Allowing for the loads
to be anchored, design calculations and design drawings must be produced which can be checked.
At
least the following must be given in the design drawings:
Concrete strength.
Diameter, drilling technique, concrete cover, spacing and anchorage depth of the rebars.
Dimension for the depth of adhesive (dispensing amount to be marked on the mixer extension
as per annex 14),
Use of a guide device (drilling aid) for the drilling holes close to edges (if necessary)
Kind of preparation of the joint between building component being connected.
4.3
Rebar connection design as per EN 1992-1-1
4.3.1
General points
The actual position of the reinforcement in the existing building component must be determined on the
basis of the construction documentation and allowed for when drafting.
The transfer of internal section forces in the joint must be verified in accordance to EN 1992-1-1 when
a
new
building
component
is
being
connected.
The
transfer
of
shear
forces
between
new
and
old
concrete shall be designed according to EN 1992-1-1. The joints for concreting must be roughened to
at least such an extent that aggregate protrude.
The
design
of rebar
connections
and
determination
of the internal
section forces to be transferred
in
the construction joint shall be in keeping with the EN 1992-1-1.
Hilti
tension
anchor
HZA-R
according
to
annexes
6
and
7
shall
be
designed
for
the
welded-on
reinforcement steel BSt 500S.
The length of the bonded-in smooth shaft made of stainless steel may
not be accounted as anchorage.
Verification of immediate local force transfer to the concrete has been provided.
Verification of the transfer of the loads to be anchored to the building component must be provided.
The spacing between post installed
rebars -
respectively Hilti tension
anchor HZA-R
shall
be greater
than the maximum of 5
d
s
and 50mm (according to Annex 5 - respectively Annex 7)
