MORE DETAILED TEXT:

THE RESARO WALL AND THE RESARO FLOOR ELEMENT IN APARTMENT HOUSES, ROW HOUSES, ONE-FAMILY HOUSES AND VILLAS:


COMMON TECHNIQUE RESARO'S SOLUTION



RESARO's SOLUTION:......... AN IMPERVIOUS, INTACT INSULATION LAYER,
............NO THERMAL BRIDGES


FREEDOM OF CHOICE FOR SURFACE COATING
BRICKS, WOOD PANELING, PLASTERING........

Examples of known techniques:

In the case of known technology, a longitudinally extending aperture is made horizontally in the wall for receiving an intermediate floor structure.

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 element plate.

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 PRESENT INVENTION

• 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 walls.
  
  
• 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 forces.
  
  
• 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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Storvretsv. 39, 142 31 Skogas, Sweden
Phone +46(0)8 5413 7800,
E-mail: info@resaro.se
Civ. Ing. George Wegler

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