Examples of known techniques:
In the case of known technology, a longitudinally extending aperture
is made horizontally in the wall for receiving an intermediate
The floor structure must not be clamped in the wall at its supported
location, so as to avoid undesirable forces and moments of force
that would act to twist apart both floor structure and wall.
Consequently, the wall plate is built into the wall in a curved
plane which extends around and beyond the supporting member.
The lower part of respective overlying walls must be given a
corresponding shape. These overlying walls may not be supported
by the floor structure, but shall solely load underlying walls.
The thickening of the wall concrete that results from this geometry
encroaches on the insulation located outside the wall, such that
this insulation will be considerably thinner than would otherwise
be the case. This also results in an undesirable thermal bridge
in the wall structure. An example of this is illustrated in the
left Figure above.
The floor structure in the example is supported on its beams.
Consequently, horizontal forces due to ground pressure and/or
wind loads are transmitted into the element via the undersides
of the beams.
When using reinforcement beams that have relatively weak flanges,
it is necessary to reinforce the ends of said beams in order
to handle the forces that act eccentrically in relation to the
The wall is provided with a horizontal recess or aperture that
accommodates the full thickness or height of the floor structure.
The aforementioned curvature that passes the concrete wall plate
around the floor-structure supporting element results in an asymmetric,
vertically acting load from the force that acts downwards from
the overlying walls, resulting in bending and, at the same time,
buckling. This has a deleterious effect on the bearing capacity
of the wall.
These asymmetrical bending forces are overcome at present, by
providing the concrete wall plates or plates with uniformly disposed,
vertical T-beam webs. These webs typically have a c/c of 600
mm. See the left Figure above.
These reinforcements also encroach on the insulation and give
rise to thermal bridges. They must also be reinforced as beams,
therewith increasing costs.
Cellular plastic is prepared with recesses at those locations
to be filled with concrete for the T-beam webs. This work is
also time-consuming and costly.
- Resaro's invention also solves these problems.
OBJECTS AND MOST SIGNIFICANT CHARACTERISTIC FEATURES OF THE
- The Resaro Wall joint solution improves the connection between
the floor structures and the walls, and also eliminates the need
of thickening the wall concrete at supporting element locations,
and the need for vertical T-beam webs in the load supporting
- It also completely eliminates the presence of thermal bridges.
The concrete plate is covered by an impervious insulating layer
of essentially uniform thickness in the absence of connections
that conduct heat outwardly.
- The invention leads the vertical loads centrally into the
concrete plate of the wall.
- And provides solutions for connecting walls and floor structures
that will enhance stability by transferring horizontally acting
- Still another object is to reduce the number of supporting
beams required for floating floors.
Improving the attachment between floor structures and walls
The object of improving the attachment between floor structures
and walls has been met by providing the upper edge of the concrete
plate of the supporting walls and/or the bottom edge of the concrete
plate of overlying walls and the ends of the floor structures
with intermittently occurring recesses or embrasures that are
adapted to each other and that have a form similar to the crenels
between widely spaced merlons of a battlement.
The configuration is also comparable with that of a joiner's
splice, e.g. a dovetail joint.
The supporting forces deriving from the floor structure element
are thus transferred into the wall plate essentially centrally,
at the same time as an overlying wall having, e.g., a horizontal
straight bottom edge rests on the upper edge of the remaining
concrete of the lower wall plate without touching or loading
the floor structure, and transmits load essentially centrally
and vertically to the underlying wall plate.
A resilient material may be placed beneath the floor structure
support centrally in relation to the load supporting wall, so
as to ensure that the forces deriving from the floor structure
will be transferred centrally into the load supporting wall.
- This enables the floor structure to rotate or twist at the
supporting point in both instances, in response to different
intensities of useful load, without being locked and broken.
The floor structures to be placed with their thin concrete
plates on the supporting elements
This also enables the use of floor structures that are comprised
of thin plates with reinforcement beams and enables the floor
structures to be placed with their thin concrete plates on the
supporting elements instead of on the floor beams, without risk
of the floor plate being broken as a result of being immovable.
This provides several advantages.
- Horizontal forces deriving from ground pressure or wind power
can be readily passed into the floor structure plate, which will
then be subjected to essentially centric forces in the plane
of said plate.
- These forces can be handled with the aid of thin plate constructions,
which represents a saving in material.
- The sparsely-toothed supporting element enables horizontal
forces to be readily transferred from long walls into said plate
and into gable walls, and vice versa, so as to enhance stability.
The floor structure elements can be turned with the plate facing
either upwards or downwards.
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