Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
CA 02578271 2011-08-31
CONSTRUCTION ELEMENT FOR HEAT INSULATION
The present invention relates to a construction element for heat insulation
between
two building parts, in particular between a ceiling or wall and a construction
part
= protruding from said building, such as a balcony, at least comprising an
insulating
= body and reinforcement elements crossing said insulating body and
connected to
each of the two construction parts, with tensile reinforcement elements being
provided as reinforcement elements, at least arranged in an upper area and
protruding particularly horizontally in reference to the insulating body and
compression elements being provided arranged in the lower area of this
insulating
body.
In certain regions, construction elements for heat insulation are subject to
strict
regulations with regard to earthquake safety; here, the sufficiently known
= construction elements for heat insulation must be able to absorb
additional dynamic
stress, which requirement previously has been largely neglected and/or was not
focused on. For example, if the construction element for heat insulation
serves to
support protruding balcony plates and is designed such that it can support its
own
weight and can absorb forces and momentums affecting the balcony plate from
the
' outside, now forces and momentums acting in the opposite direction are
added, for
= example such that the construction parts adjacent to the construction
element are
accelerated to a different degree by the vibrations of an earthquake and can
be
pulled apart, for example; or the protruding construction part is subjected to
a force
or momentum component acting vertically upward against the effective direction
of
the weight as a result of a tipping motion, which conventionally used
compression
. rods in the lower insulating area and, tensile rods in the upper insulating
area
cannot withstand alone.
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Although it would be possible in an easy manner to drastically increase the
number
of reinforcement elements in the construction element for heat insulation and
to
arrange them at different positions so that each position affected by a force
or
momentum is provided with an appropriate reinforcement element; however, this
would not only drastically increase the material expenses of such a
construction
element but also the heat insulation features would considerably worsen by the
respectively enlarged cross-sectional area of the reinforcement elements
extending
between the two adjacent construction parts.
Therefore, the present invention is based on an object of providing a
construction
element for heat insulation of the type mentioned at the outset, which allows
a
targeted and only partially implemented increase of the number of
reinforcement
elements using conventional parts, and thus to avoid, on the one hand, a
static and
dynamic oversizing of the reinforcement elements and, on the other hand, an
enlargement of the cross-sectional area of the reinforcement elements
extending
between the two adjacent construction parts compromising the heat insulation
features.
The objective is attained according to the invention in that horizontally
adjacent to
the insulating body at least one additional insulating body is arranged,
aligned
therewith, that the additional insulating body in the area of its lower half
is
provided with additional tensile reinforcement elements for earthquake stress,
which protrude in the horizontal direction in reference to the insulating
body. By
combining a conventional construction element for heat insulation with another
insulating body equipped for earthquake stress, which is merely provided with
additional tensile reinforcement elements in the lower part of the insulating
body,
the following advantages develop, in particular; the conventional construction
elements for heat insulation are used, as in the past, to compensate for the
normal
static and dynamic stress; therefore, the additional insulating bodies,
aligned
adjacent therewith, have no influence on the size and composition of
conventional
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=
construction elements for heat insulation, which facilitates the planning,
sizing, and
implementation of the combined construction element for heat insulation.
The aligned adjacent additional insulating body only needs the additional
tensile
reinforcement elements mentioned in order to allow the compensation of tensile
forces developing during earthquakes in the lower area of the insulating body,
which can not be compensated and/or transferred by the compression elements
and
lateral reinforcement rods conventionally present in this plane.
Advantageously,
the tensile reinforcement elements arranged in the conventional insulating
body
also act in case of an earthquake for transferring forces into the area of the
upper
half of the insulating body and/or for transferring lateral forces. Thus,
except for
the additional tensile force elements the additional insulating body needs no
additional other reinforcement elements. Thus, it is apparent that the
attached
additional insulating body with the additional tensile reinforcement elements
alone
cannot provide and/or ensure sufficient function, neither for earthquake
stress nor
for normal stress, and that only together with the adjacent conventional
construction elements for heat insulation can it fulfill its assigned tasks.
With regard to the additional tensile reinforcement element, it is usefully
embodied
in a rod-shaped manner known per se and protrudes beyond the additional
insulating body in order to extend far into the adjacent construction parts
and be
appropriately well anchored in them,
The additional tensile elements may furthermore be provided, at least at the
face
end, with a plate-shaped force transfer profile, which extends particularly in
a
generally vertical plane parallel to the plane of the insulating body. This
way, the
necessary force introduction area is considerably shortened, which for example
is
advantageous when additional constructive parts, such as supports etc. are
provided in the mounting area of the additional tensile reinforcement
elements, into
which the additional tensile reinforcement elements may not extend.
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Therefore, the additional insulating body is provided with two additional
tensile
reinforcement elements arranged at a horizontal distance apart from each
other.
Thus, the additional insulating body is only provided with two additional
tensile
reinforcement elements, however, it is sufficiently sized to fulfill its
intended tasks.
Horizontally adjacent to the additional insulating body, a second insulating
body
aligned thereto with integrated tensile and pressure reinforcement elements is
arranged so that a constant row of conventional construction elements for heat
insulation is only interrupted by a short section of an additional insulating
body
with only two additional tensile reinforcement elements, in particular.
More specifically, the invention provides a construction element for heat
insulation between two building parts, the construction element
comprising:
an insulating body; and
reinforcing elements crossing the insulating body and connected to
each of the two building parts, the reinforcement elements comprising
tensile reinforcement elements which are provided as protruding
reinforcement elements at least in the upper area of the insulating body
and pressure elements being arranged in the lower area of the insulating
body,
wherein, horizontally adjacent to the insulating body, at least one
additional insulating body is arranged aligned therewith, and
wherein in the area of a lower half thereof the additional insulating
body is provided with additional tensile reinforcement elements for
earthquake stress, which protrude in the horizontal direction in
reference to the insulating body.
Additional features and advantages of the present invention are
discernable from the following description of an exemplary embodiment
using the drawings. Shown are:
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Figure 1 is a perspective side view of a construction element according to the
invention for heat insulation; and
Figure 2 is a schematic front view of the construction element according to
the
invention for heat insulation.
A construction element for heat insulation 1 according to the invention is
shown in
Figure 1, which comprises a combination of two conventional construction
elements
for heat insulation 2 with a construction element for heat insulation 3
designed for
earthquake stress. The conventional construction elements 2 are provided with
an
insulating body 12 as well as reinforcement elements allocated to the
insulating
body 12, and which extend through it in a plane substantially perpendicular to
its
longitudinal extension, and only partially protruding in reference to the
insulating
body 12. In the exemplary embodiment of Figure 1, in the conventional
construction elements 2, upper reinforcement tensile rods 4 extending in the
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horizontal direction are provided as reinforcement elements 5, as are lower
compression supports, ending approximately flush with the insulating body, as
well as lateral reinforcement rods 6 extending diagonally from the top
downwards
through the insulating body and being bent outside said insulating body in a
horizontal direction. These conventional reinforcement elements, as
discernible in
Figure 1, are arranged according to a grid, predetermined and adjusted and/or
adjustable to the respective stress. The insulating body of such a
construction
element for heat insulation 2 is generally divided in the horizontal direction
in the
area of the reinforcement elements in order to facilitate the assembly and/or
positioning of the reinforcement elements.
Another insulating body 14 is arranged between the two conventional
construction
elements for heat insulation 2, extending in the vertical plane of the
adjacent
insulating body 12 flush thereto and being provided with tensile reinforcement
elements 15 extending only in the lower area of the insulating body for
compensating for earthquake stress, which extend parallel to the tensile
reinforcement rods 4 of the conventional construction elements 2 but at a
lower
height plane.
Figure 2 shows in a schematic front views parts of the conventional
construction
elements for heat insulation 2 as well as the additional insulating bodies 14
inserted therebetween having the additional tensile reinforcement elements 15,
with the additional insulating body and the additional insulating elements
forming
the construction element for heat insulation particularly embodied for
earthquake
stress.
From Figure 2 it is discernible how, adjacent to this construction element for
earthquake stress, the reinforcement elements are provided in form of tensile
reinforcement rods 4, lateral reinforcement rods 5, and compression elements
5.
While the compression elements 5 accept no or almost no other functions for
the
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particular additional earthquake stress, in particular the tensile
reinforcement
elements 4 serve to compensate the compression and lateral force components
developing during earthquakes. This is limited, at least according to
calculations,
to the tensile reinforcement rods arranged adjacent to this construction
element for
earthquake stress 3.
It is easily discernible that both the calculation and sizing is very easy
when the
construction elements for earthquake stress are not changed in their design in
reference to conventional construction elements for heat insulation and that
the
assembly and/or implementation of these construction elements for earthquake
stress can occur very easily such that after the assembly and/or
implementation of
the conventional construction elements for heat insulation a construction
element
for earthquake stress is added.
In summary, this results in the advantage that by simple means and a minimum
of
material, conventional construction elements for heat insulation can be
retrofitted
and/or complemented such that they are designed for earthquake stress, with
the
reinforcement elements according to the invention for conventional
construction
elements accept functions for earthquake stress which per se were to be
accepted by
the construction element, but which can, at least according to calculations,
easily be
distributed to the adjacent reinforcement elements of the conventional
construction
elements.
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